Re: [Emc-users] Dual boot for WIN-XP and LinuxCNC

2019-05-28 Thread TJoseph Powderly
John hello
I am sorry I did not specify which iso to use.
see https://wiki.debian.org/LTS/  for scheduled expiration dates of Debians
see http://www.linuxcnc.org/downloads/  for recommendations and caveats

I understand that any search you may have tried likely sent you to the
Wheezy version
The paths to Linuxcnc and many and 'a maze of twisted little passages'
with conflicting and out of date informations.
(IMO)

Wheezy is very old and support is gone from Debian
The newer Jeesie is better but its hard to find a live iso with it.
There is a version with Debian 9 'Stretch' with RTPREEMPT
  and you _may_find it better suited to a longer use life.

I have Wheezy and Jessie and Stretch each installed on seperate partitions,
and will migrate my favorite apps to Stretch if possible.

There are gotcha's in using the Linuxcnc partition as your workhorse
install,
LinuxCNC is conservative and not bleeding edge
meaning its core will not have the newest applications available
moreover the system you get from the live CD may not even allow you to
build what you want from source.
Theres a lot of dependancies in various aplications and libraries and
languages.

IF you limit the install to just running LinuxCNC you'll be better off
THAN ( not then ) if you add multimedia apps, java, various pythons, and
the new goodies just announced on Google.
( put those on another system or partition )

Here's my 2c for your situation...
   I think you could now recreate the Wheezy install in a short time
   You will be able to do the same for Stretch in as much time
   You will get a future path for applications in Stretch ( missing in
Wheezy )
   So I suggest keeping what you have learned but moving to the new iso
   ( editing for the charge pump is minor )
end my 2c

see
http://www.linuxcnc.org/testing-stretch-rtpreempt/
for images

HTH tomp

On Tue, May 28, 2019 at 11:57 AM John Dammeyer 
wrote:

> I installed the
> linuxcnc-2.7.14-wheezy.iso
>
> I want to download putty so I can access the com1 port and talk to the DC
> Servo controller for diagnostics.
>
> Standard practice for the Pi and Beaglebone is to
> sudo apt-get update
>
> and this is what I get with linuxCNC
>
> Hit http://linuxcnc.org wheezy Release.gpg
> Hit http://linuxcnc.org wheezy Release
> Hit http://linuxcnc.org wheezy/base Sources
>
> Hit http://linuxcnc.org wheezy/2.7-rtai Sources
>
> Hit http://linuxcnc.org wheezy/base i386 Packages
> Hit http://linuxcnc.org wheezy/2.7-rtai i386 Packages
> Hit http://archive.debian.org wheezy Release.gpg
> Ign http://archive.debian.org wheezy/updates Release.gpg
> Ign http://linuxcnc.org wheezy/2.7-rtai Translation-en_CA
> Ign http://linuxcnc.org wheezy/2.7-rtai Translation-en
> Get:1 http://archive.debian.org wheezy/updates Release.gpg [1,601 B]
> Ign http://linuxcnc.org wheezy/base Translation-en_CA
> Ign http://linuxcnc.org wheezy/base Translation-en
> Hit http://archive.debian.org wheezy Release
> Ign http://archive.debian.org wheezy/updates Release
> Hit http://archive.debian.org wheezy/updates Release
> E: Release file for
> http://archive.debian.org/debian-security/dists/wheezy/updates/Release is
> expired (invalid since 47d 13h 37min 5s). Updates for this repository will
> not be applied.
>
> So it appears it's up to date but also out of date?
>
> Try to get putty...
>
> john@g3616:~$ sudo apt-get install putty
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> E: Unable to locate package putty
>
> What's the next step?
>
> Thanks
> John
>
>
>
>
>
>
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Re: [Emc-users] web site error

2019-05-02 Thread TJoseph Powderly
On Thu, May 2, 2019, 4:32 PM andy pugh  wrote:

> On Thu, 2 May 2019 at 06:49, Valerio Bellizzomi 
> wrote:
> >
> > at http://wiki.linuxcnc.org/
>
> > Can't locate object method "startform" via package "CGI" at wiki.pl line
> > 1501.
>
> Where does the Wiki live?
>
> Much of it is so outdated and wrong perhaps it is best not to fix it :-)
>
>
> Please find it and mark it in big letters as crap info. Don't let it just
rot and miss lead people. There is too much miss-information around this
great project.

BTW I cut down the url and can't get in either.

atp
>

My 2c
TomP

"A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
>
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Re: [Emc-users] debian 9 ext4 wont mount on debian 7

2019-04-28 Thread TJoseph Powderly

Hello
reinstalling with ext3 'fixes' it

 Forwarded Message 
Subject:debian 9 ext4 wont mount on debian 7
Date:   Sun, 28 Apr 2019 23:24:58 +0700
From:   TJoseph Powderly 
To: emc-users 



Hello
I just installed 
http://www.linuxcnc.org/testing-stretch-rtpreempt/linuxcnc-stretch-uspace-amd64-r13.iso 


I reformatted a partition as ext4 to hold this installation.
 Then I made a screenshot of latency-histogram
and rebooted to my workhorse debian 7 to compare latencies.
I found I could not mount the debian 9 ext4 partition from the debian 7 
system.
Then I read that theres changes in the ext4 fs that cause this. ( its a 
known problem ).
Then I 'fixed' the problem by booting the debian 9 and issuing sudo 
tune2fs -O ^metadata_csum /dev/sda1 ( sda1 for my installation ymv )



That did not really work.
I ended up wiping the install , reinstalling with ext3
now debian 7, debian 8, debian 9 and ubuntu 16 can all read and write 
each others' partitions.



 please warn others on the install pages that formatting a partition as 
ext4 will be problematic when accessed by older debians.



it's not a linuxcnc problem
the problem is debian 9 has a different ext4 than earlier debians
the bad suggestion to use ext4 is inside the debian installer.


 thanks TomP

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[Emc-users] debian 9 ext4 wont mount on debian 7

2019-04-28 Thread TJoseph Powderly

Hello
I just installed
http://www.linuxcnc.org/testing-stretch-rtpreempt/linuxcnc-stretch-uspace-amd64-r13.iso

I reformatted a partition as ext4 to hold this installation.

Then I made a screenshot of latency-histogram
and rebooted to my workhorse debian 7 to compare latencies.

I found I could not mount the debian 9 ext4 partition from the debian 7 
system.


Then I read that theres changes in the ext4 fs that cause this. ( its a 
known problem ).


Then I 'fixed' the problem by booting the debian 9
and issuing
sudo tune2fs -O ^metadata_csum /dev/sda1
( sda1 for my installation ymv )

please warn others on the install pages that formatting a partition as 
ext4 will be problematic when accessed by older debians.


thanks TomP



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[Emc-users] bluing scraping

2019-04-27 Thread TJoseph Powderly

I'm in the boonies and need to scrape somethings flat.

Permatex prussian blue is hard to get.

But when googling,I always hit upon
Winsor Newton Winton Oil 1414538 Prussian Blue 37ml

It's an oil paint in a tube
(think Van Gogh's Starry Night )

I found some at a local book store that has art supplies,
It works great!

a box of black nitrile gloves,
and a 50x80cm slab of grey granite from a kitchen remodeler shop,
( a real deal, very flat and was a cut off , cost me 300Baht so about 10$ )
and I got real scraping!

I had tried several home brews that failed
(lip stick, and magic marker with vaseline goop)

This stuff is really easy to see.
the granite plate charges and stays for many imprints.

hope this helps someone

tomp

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Re: [Emc-users] Rockpro64 arrived

2019-04-26 Thread TJoseph Powderly
Thanks Alan. I can apply that to the new opi rt image from Russia (
orange-cnc.ru ) . They have interesting Hal gpio module allows any pin to
have reset feature for double step. I will build those rt tools tonight to
test latency.
Thanks TomP

On Sat, Apr 27, 2019, 12:58 AM Alan Condit  wrote:

> Hello Tom,
>
> I downloaded the cyclictest suite and ran it several times. The average
> latency is 3 microseconds. Running it via ssh the max was 45 or 48 until I
> logged from a wireless keyboard and the HDMI video. I started X and LXQT
> during that startup, the max went to 58.
>
> I just started it again with the -h option to produce a histogram, now the
> max is 62 and the average is 4.
>
> Alan
>
>
>
> > From: TJoseph Powderly 
> > Subject: Re: [Emc-users] Rockpro64 arrived
> > Date: April 25, 2019 at 9:07:16 PM PDT
> > To: emc-users@lists.sourceforge.net
> >
> >
> > Hello Alan
> >
> > On 04/26/2019 11:02 AM, Alan Condit wrote:
> >> I downloaded the Arabian Stretch nightly image
> Armbian_5.83.190424_Rockpro64_Debian_stretch_dev_5.0.0.7z <
> https://dl.armbian.com/rockpro64/nightly/Armbian_5.83.190424_Rockpro64_Debian_stretch_dev_5.0.0.7z>.
> It is running the 5.0.0 kernel (as patched by Armbian. When I ran
> menuconfig, I had to figure out how to select the full RT preempt. Then I
> built the linux-stable-rt-4.19.31-rt18 kernel and installed it. At the end
> of the install the Image link was still pointing to the 5.0.0 kernel but
> the Initrd link was pointing to the initrd-linux-stable-rt-4.19.31-rt18. So
> I tried booting it up and it booted the 5.0.0 image, then I went into
> /boot, deleted the Image link and created a new symbolic link to 4.19.31-rt
> kernel. Then I tried booting again and it worked. I typed uname -a and it
> reported the 4.19.31 kernel with full SMP Preempt RT. So, Gene, you could
> do the same thing for your Rock64 but you need to download the Armbian
> image for the Rock64 rather than the RockPro64. Don’t ask how I know!!! I
> compiled the kernel on the RockPro64. I started about 8:00p.m. and it
> finished sometime after 2:00a.m. and before 7:00a.m. Alan
> > please, latency test says what?
> > tomp
>
>
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Re: [Emc-users] Rockpro64 arrived

2019-04-25 Thread TJoseph Powderly

Hello Alan

On 04/26/2019 11:02 AM, Alan Condit wrote:
I downloaded the Arabian Stretch nightly image 
Armbian_5.83.190424_Rockpro64_Debian_stretch_dev_5.0.0.7z 
. 
It is running the 5.0.0 kernel (as patched by Armbian. When I ran 
menuconfig, I had to figure out how to select the full RT preempt. 
Then I built the linux-stable-rt-4.19.31-rt18 kernel and installed it. 
At the end of the install the Image link was still pointing to the 
5.0.0 kernel but the Initrd link was pointing to the 
initrd-linux-stable-rt-4.19.31-rt18. So I tried booting it up and it 
booted the 5.0.0 image, then I went into /boot, deleted the Image link 
and created a new symbolic link to 4.19.31-rt kernel. Then I tried 
booting again and it worked. I typed uname -a and it reported the 
4.19.31 kernel with full SMP Preempt RT. So, Gene, you could do the 
same thing for your Rock64 but you need to download the Armbian image 
for the Rock64 rather than the RockPro64. Don’t ask how I know!!! I 
compiled the kernel on the RockPro64. I started about 8:00p.m. and it 
finished sometime after 2:00a.m. and before 7:00a.m. Alan 

please, latency test says what?
tomp


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Re: [Emc-users] [Off topic] Might interest Gene, radio pirates.

2019-04-24 Thread TJoseph Powderly

and the movie was great
https://en.wikipedia.org/wiki/The_Boat_That_Rocked

On 04/25/2019 12:28 AM, andy pugh wrote:

https://hackaday.com/2019/04/24/radio-piracy-on-the-high-seas/

tomp


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Re: [Emc-users] possibly good news for LinuxCNC

2019-04-24 Thread TJoseph Powderly

Thanks Bari
Thanks Alec

On 04/24/2019 10:07 PM, bari wrote:


The dev that spent years cleaning up and fixing the rtai.org to make 
it work with LCNC and hosting it at https://github.com/NTULINUX/RTAI 
just got tired of things. rtai.org would not give him credit and 
treated him like a pest even though they heavily borrowed his fixes 
(even at xenomai). Fortune 100's would take months to come up with a 
pittance to pay for the work. So he's done with any new RTAI work. The 
newer posted work at rtai.org is all beta and the really new for 
current kernels hasn't been made public. 3.16.52 kernel is the latest 
stable kernel to work with RTAI and LCNC. Anything newer will takes 
weeks of work by someone that really knows what they are doing. -Bari

cat /proc/cpuinfo
will produce a line like this:

flags        : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm 
constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl 
vmx est tm2 ssse3 cx16 xtpr pdcm xsave lahf_lm dtherm tpr_shadow vnmi 
flexpriority


the sse and sse2 are needed for the build

the above is from an i686 E6300, runs rt-preempt fine
I think I'll try the rtai build

hth
tomp


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Re: [Emc-users] Looking fro some input from the community

2019-04-23 Thread TJoseph Powderly

Joe
its PCI
tomp

On 04/23/2019 11:18 PM, Joe Hildreth wrote:

Tomp,

Perfect, the chipset is MCS9865IV and looking at the specification sheet looks 
like it can be configured in a number of formats.  Since yours has a header 
available for the second PP and no UART populated I just listed it as 2 
parallel ports.  One last question and I will leave you alone.  Is the card, 
ISA, PCI or PCIe

I have added it to the list.

Joe

Joe Hildreth
IT Manager
Three Rivers Hospital
451 Hwy 13 South
Waverly, TN 37185
(931) 296-0217 (office)
(931) 622-3130 (cell)





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Re: [Emc-users] Looking fro some input from the community

2019-04-23 Thread TJoseph Powderly

Joe
On 04/23/2019 10:27 PM, Joe Hildreth wrote:
Tomp, Can you give me the chipset ID and what IO the card has? (# 
Parallel Ports and # serial Ports) Joe

lspci -vknn
reports
snip...
04:00.0 Parallel controller [0701]: NetMos Technology PCI 9865 Multi-I/O 
Controller [9710:9865] (prog-if 03 [IEEE1284])

    Subsystem: Device [a000:2000]
    Flags: bus master, medium devsel, latency 32, IRQ 3
    I/O ports at d2b0 [size=8]
    I/O ports at d2a0 [size=8]
    Memory at d0423000 (32-bit, non-prefetchable) [size=4K]
    Memory at d0422000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: 

04:00.2 Parallel controller [0701]: NetMos Technology PCI 9865 Multi-I/O 
Controller [9710:9865] (prog-if 03 [IEEE1284])

    Subsystem: Device [a000:2000]
    Flags: bus master, medium devsel, latency 32, IRQ 11
    I/O ports at d290 [size=8]
    I/O ports at d280 [size=8]
    Memory at d0421000 (32-bit, non-prefetchable) [size=4K]
    Memory at d042 (32-bit, non-prefetchable) [size=4K]
    Capabilities: 
snip...

the board itself has printing...
SY-PCI10002  on a glued label
---
MM-PIO9865-V2.0
Made In CHina   in white on pcb
---
MCS9865IV=AA
PCJCL9-010
1515
FSA0AC229AB   on the main chip
---
G536PIO9865V2.0   in green on green mask

the 2nd parport is accessed on an ide header.
theres places for 2 serials but not populated.

hth
tomp


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Re: [Emc-users] Looking fro some input from the community

2019-04-22 Thread TJoseph Powderly




On 04/23/2019 10:07 AM, bari wrote:

LSPCI

https://en.wikipedia.org/wiki/Lspci

http://www.tutorialspoint.com/unix_commands/lspci.htm

On 4/22/19 9:03 PM, Jon Elson wrote:

Is there a way to show this P info on a running system?



lspci -nn gets text and numbers
...snip...
04:00.0 Parallel controller [0701]: NetMos Technology PCI 9865 Multi-I/O 
Controller [9710:9865]
04:00.2 Parallel controller [0701]: NetMos Technology PCI 9865 Multi-I/O 
Controller [9710:9865]

...snip...
hth tomp

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[Emc-users] Fwd: Re: ER ATC tool idea

2019-04-19 Thread TJoseph Powderly




 Forwarded Message 
Subject:Re: [Emc-users] ER ATC tool idea
Date:   Fri, 19 Apr 2019 17:15:50 +0700
From:   TJoseph Powderly 
To: Andy Pugh 



Gene,

On 04/19/2019 06:52 AM, Andy Pugh wrote:
On 19 Apr 2019, at 00:47, Ken Strauss  wrote: 
there is no obvious way that the threads would achieve that level of 
concentricity. 
You can still register on the taper. Solid “collets” and off-the-shelf 
nuts seem so obvious that I am puzzled that I have never found them. 
It solves the tool length puzzle at a stroke. 

here's your chance to make use of that induction heater thread from a
while back.
you could make solid collets for heat shrink tooling :-)
heck, they could be solid collet-nuts
no concentricity problems ( except in manufacture , got a jig grinder ? )
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tomp


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Re: [Emc-users] ER ATC tool idea

2019-04-18 Thread TJoseph Powderly

Greg thanks

On 04/19/2019 08:36 AM, Gregg Eshelman via Emc-users wrote:


The Weldon style has a set screw flat that's angled toward the cutting 
end. 


Tighten the set screw on it and the tool is forced upwards until the 
deeper end of the flat contacts the side of the set screw. 


That makes the too resistant to shifting axially, preventing loosening 
or shifting of tool length.


Thanks, I can see it working now and have used them on shank tool 
holders ( Bports etc )


So, the set screw squeezes the angle to bottom out the shank in the bore.
And, the end of shank and bottom of bore must be clean and solid.

I recall doubting what I had used ,
trying to jiggle and twist the tool with set screw just biting.
They didnt 'feel' like the tool was constrained,
The bore felt good, but the twist and length feature did not.

I didnt chcek but would expect the one cheek of the Weldon to have marks 
from the screw.


But, considering the shop owner,
I was likely using cheap stuff from MSC ( who was down the street Elk 
Grove Illinois ).




On Thursday, April 18, 2019, 5:59:29 PM MDT, Gene Heskett 
 wrote: On Thursday 18 April 2019 19:49:10 Andy 
Pugh wrote:
On 18 Apr 2019, at 23:29, Gene Heskett  wrote: 
Cutting duties with 6mm end mills would still need a collets death 
grip I think. YMMV of course. 
He did mention Weldon Shank. 


Ok, since I'm a new bee in terms of a weldon, what makes them magic? 
Thanks Andy. Cheers, Gene Heskett 
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Re: [Emc-users] ER ATC tool idea

2019-04-18 Thread TJoseph Powderly

about weldon shank
https://tinyurl.com/yyxlreku

On 04/19/2019 06:52 AM, Andy Pugh wrote:
On 19 Apr 2019, at 00:47, Ken Strauss  wrote: 
there is no obvious way that the threads would achieve that level of 
concentricity. 
You can still register on the taper. Solid “collets” and off-the-shelf 
nuts seem so obvious that I am puzzled that I have never found them. 
It solves the tool length puzzle at a stroke. 

I dont understandwhat it solves about tool length.
I dont see the Weldon ensuring same tool length when tool bit is exchanged.
I do see it can repeat the tool length of a given pair of collet and 
tool-in-solid-collet.
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I have 10 collet-nut pairs eoc8a coming in post( for a Kress spindle )
5 with 3.175 collet, 5 with 6mm collet,
supposed to be .008mm concentricity.

BTW the Kress has an atc spindle addon ( a nose that fits over existing 
spindle )

https://tinyurl.com/y5zwlagb
*
*tomp

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Re: [Emc-users] Something to think about re the hack-a-day tool changer

2019-04-18 Thread TJoseph Powderly





 Forwarded Message 
Subject: 	Re: [Emc-users] Something to think about re the hack-a-day 
tool changer

Date:   Thu, 18 Apr 2019 23:22:19 +0700
From:   TJoseph Powderly 
To: Gene Heskett 



Hi Gene

On 04/18/2019 10:57 PM, Gene Heskett wrote:

On Thursday 18 April 2019 11:50:00 Ken Strauss wrote:
Google is your friend! ft-lb =Nm * 0.73756 So 75Nm = 55.3 ft lbs 
55 ft/lbs? Here the tool will walk out and break, very quickly at that 
tension. Doubtfull I have used less than 75 ft-pounds on the TTS 
adapters I use fairly universally on the G0704. 

on the web you can find suggested max torque for er collets
https://www.techniksusa.com/metal/torque_chart.htm
that url has torque wrench adapters as well ( $$$ )

( i have eoc8a collets tho, and have found no numeric values, only
descriptions of hand tightening )

you can find mfctrs saying use 75-80% of the max torque value.
you can find the caveats that the tool shank has to fully contact the
collet, not larger or smaller allowed.
you can find that the release is going to have stiction and release
requires more initial force.
other caveats about cleaning and air blasts are used in industry
( even collets covering the air blast holes and checking back pressure
in attempts to check good seating )

Andy's pragmatic checking of needed torque with a proper torque wrench
is very good ( what works is a good place to start)

also note the xatc ver 0.3 is already old and the google group on xatc
is cold since 2016.
you're kinda the lead developer now


-Original Message- From: Gene Heskett 
[mailto:ghesk...@shentel.net] Sent: Thursday, April 18, 2019 11:45 
AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] 
Something to think about re the hack-a-day tool changer On Thursday 
18 April 2019 07:47:51 andy pugh wrote:
On Thu, 18 Apr 2019 at 10:22, Roland Jollivet 

 wrote:
To recap; small steppers 'drive' the carousel around to tighten 
the motor. 
No, the motor drives round the carousel to tighten the collet. It 
is really rather clever. Assuming that it can't work based purely 
on guess-work seems silly. 
No, not silly, experience Andy, experience reaching into the bank 
account to replace tooling that broke by walking out of the holder 
when I thought it was tight enough.
I suggested a very simple test using the same torque wrench as Gene 
presumably uses now to tighten his collets to the correct torque to 
test the hypothesis. 
All 4 of my 5 torque wrenches are in foot/pounds. The smallest is in 
inch pounds. How much is 75Nm, in inch pounds.
But, assuming a 5mm pitch screw and 5:1 motor reduction: (0.5 Nm 
stepper * (2 * pi) / 5mm ) * 5:1 = 3kN. On the end of a 75mm arm 
that is 235Nm. Correct torque for an ER20 is 75Nm. 
That is no where near tight enough to keep it from walking out of 
the collet and breaking the tool because its digging 3/8" on a cut 
that should be 20 thou if it hadn't walked out. Here I use an end 
wrench about 15" long, ground thin enough to fit the flats on the 
TTS holder, and a 10 or 12" crescent wrench and a pull on the 
wrenches that is likely in excess of 100 lb-ft. I don't have a 
newtom-meters to pound-foot conversion handy but that certainly is 
tighter than 75Nm. Ditto if using an R8 directly, the R8 gets 
tightened with a 20 volt electric impact wrench driving an 8 point 
10mm socket a lot tighter than I can draw it by hand with the 
supplied toy 10mm endwrench. If not, the TTS in the R8 may slip and 
walk out. The life of that socket before it splits might be 50 
times, its hell on good quality sockets.
(Though I am not convinced that an ER17 can really lift a 300kg 
mass, so suspect I messed something up. ) 
Cheers, Gene Heskett -- "There are four boxes to be used in defense 
of liberty: soap, ballot, jury, and ammo. Please use in that order." 
-Ed Howdershelt (Author) Genes Web page 
<http://geneslinuxbox.net:6309/gene> 
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Cheers, Gene Heskett

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Re: [Emc-users] Something to think about re the hack-a-day tool changer

2019-04-18 Thread TJoseph Powderly
Hi Roland

On Thu, Apr 18, 2019, 3:23 PM Roland Jollivet 
wrote:

> On Thu, 18 Apr 2019 at 01:22, Gene Heskett  wrote:
>
> > On Wednesday 17 April 2019 15:06:02 Chris Albertson wrote:
> >
> > [...]
> > >
> > > But if maybe you lock the spindle and turn the nut.
> >
> > This is the case, except you are turnbing the nut by using the xy
> > steppers to drive the carousel which is turning the nut.
> >
> > > Then your spindle
> > > lock needs to have a torque gauge fitted.  The gauge is either a
> > > spring and switch or a load cell.   The switch is much easier to
> > > interface with. <
> https://lists.sourceforge.net/lists/listinfo/emc-users>
> >
>
> Hi Gene
>
> To recap; small steppers 'drive' the carousel around to tighten the motor.
> Bad idea.
>
> Here's a different way of looking at it;
> Keep the current stepper arrangement, but drive the carousel instead, with
> a windscreen wiper motor.
> You now have as much torque as you like in the carousel. Add a reduction
> drive if you like. If you mount this under the bed you can go to town on
> it.
>
> Gene might include a visual
>


Gene could give a visual clue with each of these posts.

So search ' xatc ' in Google

Sorry I can't get this phone to copy the hackaday url ( stupid Newton!)

You will see he needs to move the spindle about the carousel center.
Not turn the carousel about it's center.
( The design as it is now)
That needs an xy move of the carousel center Or an arc motion of the center
or
some lever motion or ( insert favorite idea here).

The process would be to move into tool position, Z down, then either track
> the motion of the carousel, or disable the stepper drives and let them
> coast as the carousel takes the spindle with it as it loosens/tightens.
> Once you've reached your target Amperage on the motor, stop, and Z up. The
> X,Y is now a 'don't care', so home the machine.
> You then further rotate the carousel to home with a single switch so it's
> always ready.
>
> Regards
> Roland
>

Hth tomp

>
>
>
>

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[Emc-users] Orange Pi Linuxcnc fun with Google Translate in Russian

2019-04-11 Thread TJoseph Powderly

I haven't translated this, nor tried the code
but maybe its of interest to the group.

Theres a lot of non-english speaking linuxcnc developers,
and the language barriers often hide their efforts,
due to browser and search engine preferences.

https://github.com/orange-cnc
http://orange-cnc.ru/

tomp


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[Emc-users] upgrading jessie

2019-04-11 Thread TJoseph Powderly
John Thornton, Hello,
I have a problem upgrading from Debian 8 to Debian 9 ( Jessie to Stretch i
think they are named ).

I followed these notes
https://gnipsel.com/linuxcnc/uspace/debian9-emc.html
I had no errors or warnings until
near the end I got this message
(while installing linuxcnc-uspace)

tomp@jessie:~$ sudo apt-get install linuxcnc-uspace
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 linuxcnc-uspace : Depends: libboost-python1.62.0 but it is not installable
   Depends: libstdc++6 (>= 5.2) but 4.9.2-10+deb8u2 is to
be installed
   Recommends: linux-image-rt-amd64 but it is not
installable
E: Unable to correct problems, you have held broken packages.

i already have libboost-python 1.55   and no 1.6 listed by synaptic
I already have libstdc++ 4.9.2.10+deb8u2 ,
( i have no idea what is meant by "is to be installed" , its already there )

some info about my system:

tomp@jessie:~$ uname -a
Linux jessie 3.16.0-9-rtai-amd64 #1 SMP PREEMPT Debian 3.16.7-6linuxcnc
(2015-11-30) x86_64 GNU/Linux

tomp@jessie:~$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 8 (jessie)"
NAME="Debian GNU/Linux"
VERSION_ID="8"
VERSION="8 (jessie)"
ID=debian
HOME_URL="http://www.debian.org/;
SUPPORT_URL="http://www.debian.org/support;
BUG_REPORT_URL="https://bugs.debian.org/;

any hints?

thanks
tomp

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Re: [Emc-users] G540 timing

2019-04-08 Thread TJoseph Powderly

Chris Morley
Hello

On 04/09/2019 05:55 AM, andy pugh wrote:

On Mon, 8 Apr 2019 at 19:12, TJoseph Powderly  wrote:


So for users who have used the PNCconf default G540 settings
(1000 step 2000 pause 200 dirsetup 200 dirchange )

On the forum we typically suggest that everyone uses 5000 for step and
dir and 20,000 for dir.
(Because by definition you only reverse at zero speed, so can afford
to wait 20uS)


I believe you maintain PNCconf
Please change the default value for g540 step timings.

I think that they are too small
It is the opinion on the 'forum' they are too small.

I would suggest 4000 3000 300 300.
I am confident the Forum suggests longer values than the default 1000 
2000 200 200 I received from PNCconf.


BTW I found the PNCconf very handy for setting limits
and for testing lost counts with the looping motion feature.

I moved the starting position of the loop,
so the extreme position fitted a gauge pin against a 123 block,
then repeated for hundreds of cycles,
checking the gauge pin afterwards to verify no lost motion.

Thanks TomP


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[Emc-users] G540 timing

2019-04-08 Thread TJoseph Powderly

Hi, this may be of use to some users of the Gecko G540, who see lost steps.

I made a config using PNCCONF and selected the standard timings for G540 
with a 5i20.

I used a simple bob to connect the G540 to P4 of the 5i20.

Then I made many tests for repeatability ( machine coordinate position 
after homing )

This was primarily to check the repeatability of the homing switches.

I bolted a small angle plate to the worktable and selected a position 
where drill shanks fit between the head and the angle plate.
The results were satisfying, each position had a standard feel ( like 
al-dente ) when the shanks were inserted,

I repeated this 20x, all was well.

Then I ran 3Dchips after homing and checking the position as above,
this was to look for any accumulated position error ( 3Dchips has a bit 
of length )

and repeated the position test after the program finished.

There was noticeable error after the program was run.

I rechecked mechanics and electrics and fixed some things but the error 
persisted.


The position was always ok after home and not ok after program run.

I wondered why and remembered the same machine was running without this 
error using a PICnc step generator

and with the parallel port software step generator.
It didnt run as fast due to lower step rates but it was repeatable.

Then I recalled the PICnc used a pretty simplistic step timing scheme,
it simply has 1/2 the period was ON and 1/2 was OFF.
( at whatever velocity you chose )

Then I read PCW suggesting doubling the step timing for a user having 
low speed step losses.


I didnt have specifically low speed losses, as I was running at 1500mm/min,
but I tried it and the results were a lot better but not perfect.

Then I increased the off time and the dir times too
and now have no position errors after 20 consecutive reps of
power on
home
move to calibration point
feel with new shiny drill shanks
run 3Dchips
retest with shanks
--- repeated 20x at 2000mm/min -

So for users who have used the PNCconf default G540 settings
(1000 step 2000 pause 200 dirsetup 200 dirchange )
AND are getting position errors after a good bit of motion
Please try...
4000 step 3000 space 300 hold 300 setup
( I meant to use 2000 step, but fatfingered it,
I also up-ed the dir timings just for the helluvit
bottom line: it works and i dont wanna run all those tests again
so there :-p

HTH
tomp
https://pasteboard.co/I9dyQwt.jpg
https://pasteboard.co/I9dzXOM.jpg


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Re: [Emc-users] Home-limit switch measuring

2019-03-31 Thread TJoseph Powderly

Rafael

On 04/01/2019 12:46 AM, Rafael Skodlar wrote:

On 3/31/19 8:07 AM, TJoseph Powderly wrote:

hi gene
maybe redesign to drive past the switch
like you can brush a wall mounted light switch by swiping your hand over
the wall surface
rather than punching it :-)
( try mounting so the direction of switch activation is 90 degress to 
the

joint motion )
tomp



Good idea. Some computers from the 70's and 80's had a lot of 
mechanical parts. I remember seeing a double switch solutions to 
detect position of some kind of a sliding mechanism. Thinking about 
it, that kind of solution was possibly used on head assembly with 
voice coil in disk drives.


Switch assembly had tiny wheels on spring loaded lever that was 
pushing gently on microswitch. First switch would detect adjustable 
position close to the limit, second switch was the absolute limit. 
When the electronics detects first switch it slows down the motor and 
the mechanism continues to move to the absolute limit switch then stops.


A: No.
Q: Should I include quotations after my reply?

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?


noted
tomp


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Re: [Emc-users] Home-limit switch measuring

2019-03-31 Thread TJoseph Powderly
hi gene
maybe redesign to drive past the switch
like you can brush a wall mounted light switch by swiping your hand over
the wall surface
rather than punching it :-)
( try mounting so the direction of switch activation is 90 degress to the
joint motion )
tomp


On Sun, Mar 31, 2019 at 9:03 PM Gene Heskett  wrote:

> Greetings everybody;
>
> I think I've got the coolant pump starting problem fixed.  Ignore that
> faint knocking sound.
>
> Now I would like to use a teeny little pushbutton (6x6x2.5mm tall)
> between two solid parts of this machine for home and potentially as
> limit switches.
>
> However the amount of available overtravel after the switch has clicked
> is quite limited unless this switch is mounted on something crushable so
> that the getting stopped overtravel does not crush the switch like a
> Coors can.
>
> Is there a way to determine how much overtravel vs approach speeds is
> occuring?
>
> I ask because a wide open x or y move  can do around 220 ipm on this
> machine, and that stopping distance is not an ignoreable distance when
> the switch only has maybe .010" of overtravel after its clicked.
>
> So I first would like to determine the maximum safe SEARCH_VEL I can use
> for homeing, then from that, be able to set MAX and MIN LIMITS far
> enough away from the crash stop to provide crash protection in the space
> between the LIMIT set in the ini file, or how much crush room I have to
> build into the switch mount?
>
> Also, in attempting to minimize this stopping distance, what or how can
> one detect a motor step slip if the ACCEL's are stopping the motor
> faster than it can stop? Hopefully without pounding a $90 dial into
> junk.
>
> Thanks all;
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page 
>
>
>
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Re: [Emc-users] SPI comms for linuxcnc (was Re: Rock64 pre-orders on Banggood.)

2019-03-30 Thread TJoseph Powderly

Thanks Andy
now to read the code :-|

BTW you note about using 'no interface' from mesa to g540 worked very well.
( all 3.3V compatible )
Previous max velocities of 1300mm/min at 1/2 step
( max constrained by PICnc and machine resonance)
have increased to a reliable 1500mm/min
( 1/10 step using 5i20/G540's higher steprates)
and in pncconf, over 2000mm/min sounded/felt ok !

So there's a big advantage to smoother motion
And a disadvantage of micro-stepping needing higher step rates for same 
velocity :-(

( I have some triaminic TMC2130 drives on the way :-)

I'm playing it safe until the parts are inside the cabinet and nailed down
.Thanks!

I can return to RPi/PICnc later
( brand new old PIC32mx150f128s arrived from Texas with a 4 day turn 
around :-)


tomp

On 03/31/2019 02:41 AM, andy pugh wrote:

On Thu, 28 Mar 2019 at 01:38, TJoseph Powderly  wrote:


Thats another problem, can a comp have its own modules?
Like, can a generic SPI host comp have specific client sub-comps?
How to talk to different devices with same protocol?

Sort-of. For example the Mesa driver has two or more parts.
You first need to load the Holstmot2 driver, and then you load the
hm2_pci, hm2_eth, hm2_spi etc drivers to access the various types of
cards.





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Re: [Emc-users] SPI comms for linuxcnc (was Re: Rock64 pre-orders on Banggood.)

2019-03-27 Thread TJoseph Powderly

Hello Gene

I always forget some context...

In my use of the RPi and SPI and stacking connectors ( there, that's the 
context )

I have SPI devices connected thru the 40pin stacking header
so my paths are very short and solid.

Theres topological problems with the stacking connectors
but SPI routes are very short.
( some one list referred to the 'sandwich' problem of these 
microcontrollers )


I have the RPi3B and two protoboards with MCP23s17's stacked,
then short jumpers to the PICnc stepgen.
I use the 'extender' style 40pin headers, gold plated.

I dont know how tall the stack can grow before signals degrade.

re: the topology
I tried to invert the 40 pin connector
that is, to move it to bottom of RPi
so the heatsinks and fan on top side didnt bother the stacking
It was a mess, too hard to remove it :-(

I considered a board to just breakout just the spi pins.
But for the RPi's , a generic SPI driver is needed ( talks _to_ many/any 
devices).
And for the LinuxCNC community, a generic SPI driver that talks _from_ 
many hosts is needed.


Thats another problem, can a comp have its own modules?
Like, can a generic SPI host comp have specific client sub-comps?
How to talk to different devices with same protocol?

I cant right now, I'm attempting python calls to use the MCP23s17 i/o,
its slow and non-realtime if I cant swing it, but for buttons, relays 
and lights, thats ok.


BTW: Theres 2 spi buses on the rpi3b
one SPI0 has 2 chip selects the other has 3 SPI1.

tomp

On 03/28/2019 02:49 AM, Gene Heskett wrote:

On Wednesday 27 March 2019 14:03:33 Nicklas Karlsson wrote:


On Wed, 27 Mar 2019 19:12:48 +0700

TJoseph Powderly  wrote:

( list apology, I seem to have replied to posters rather than to the
list, and several times :-(

re SPI comms Linuxcnc SBC microcontrollers ...

it has been said on this mail list,
that SPI is a good candidate for a bus technology to work _with_
realtime.

Maybe not as a bus but chip select between devices over a short
distance work. Isolation is possible but delay may cause problem at
high speed. If drivers are kept close together and there are not to
many of them which likely to be the case it is a good candidate.

CANopen is available for ordinary CAN networks and over Ethercat. SDO
protovol may be a very good candidate for configuration to get a more
or less standard format, *.eds files may be used as a standard
dictionary format, expedited transfer of up to 32 bit at a time is
relatively simple to implement, to add a sequence number might be a
good idea so that severel messages could be on the the they thru the
system but for configuration to wait a short while is OK since there
usually only is a need for a few numbers. I have som code is somenone
need it. PDOs are simple if harcoded, mapping and communication
parameters are harder but may not be needed for a working system.

SPI is very common on Micro controllers, cheap and fast but only over
very short distances, there certainly are limitations.


Qualify very short distance to include up to 8" long although it wasn't
as bulletproof at a lower speed as I was using 8" pin to pin jumpers and
no termintors.  Now my cable is a legit ribbon and about an inch. And
Jon E's little terminator board adds a little under an inch to that. At
that distance, its bulletproof.


heres some work in that vein (maybe overlooked)

yeltrow's work:
a generic spi hal module so you can use other SPI devices ( rpi,
arduino, mcp23s17, ENC28J60, theres a lot of spi stuff to hang onto
such a bus )
https://www.forum.linuxcnc.org/24-hal-components/28851-spi-bus-gener
ic-driver-and-st-l6480

the files are on the forum for members
linuxcnc-upload-2015-12-03.tar

erste's work:
for ethernet circumventing usb ( via spi
interesting as spi and ethernet seem to be future avenues
http://erste.de/ethraw/README

theres other efforts but less coupled to the spi grail

tomp


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Re: [Emc-users] SPI comms for linuxcnc (was Re: Rock64 pre-orders on Banggood.)

2019-03-27 Thread TJoseph Powderly

Gene hello



On 03/27/2019 08:13 PM, Gene Heskett wrote:

On Wednesday 27 March 2019 08:12:48 TJoseph Powderly wrote:


( list apology, I seem to have replied to posters rather than to the
list, and several times :-(

re SPI comms Linuxcnc SBC microcontrollers ...

it has been said on this mail list,
that SPI is a good candidate for a bus technology to work _with_
realtime.

heres some work in that vein (maybe overlooked)

yeltrow's work:
a generic spi hal module so you can use other SPI devices ( rpi,
arduino, mcp23s17, ENC28J60, theres a lot of spi stuff to hang onto
such a bus )
https://www.forum.linuxcnc.org/24-hal-components/28851-spi-bus-generic
-driver-and-st-l6480


Interesting driver for the big stuffs. However, I wonder if yeltrow is
aware of rpspi.ko, now part of LCNC.  Not parport based but gpio,
written specificly for the rpi3b.  And I'm using it, writing to a Mesa
7i90 at 42 megabaud, and reading back from the 7i90 at 25 megabaud
useing only 4 gpio pins for 2 or 3  target devices.

I dont find source rpspi.c in my sources.
cant google it except to find messages from you.

My RIP source tree is DGarr's external offset branch.

I dont have raspi.kp either.

Where are these files?

The files I was speaking of were generic spi utilities,
not RPi to Mesa communication modules,
They were attempts to make SPI available on any hardware platform to any 
SPI device.
They are attempts only ( one uses a parport but i guess that could be 
altered to gpio )

But from the parport, the author connects to many different SPI devices.

What file builds rpspi.ko ?

Maybe its private/unpublished work from Matsche ?

I cant find it on https://github.com/LinuxCNC/linuxcnc either.

Plz lemmeno
TomP

Perusal of that code might be of help to yeltrow. gpio seems to be about
10x faster than trying to simulate SPI over a parport.  The 7i90 has
both modes depending on the firmware loaded.


the files are on the forum for members linuxcnc-upload-2015-12-03.tar

So this work handily predates rpspi.ko. Still, theres obviously things to
be learned from the rpi version.


erste's work:
for ethernet circumventing usb ( via spi
interesting as spi and ethernet seem to be future avenues
http://erste.de/ethraw/README

theres other efforts but less coupled to the spi grail

tomp


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[Emc-users] SPI comms for linuxcnc (was Re: Rock64 pre-orders on Banggood.)

2019-03-27 Thread TJoseph Powderly
( list apology, I seem to have replied to posters rather than to the 
list, and several times :-(


re SPI comms Linuxcnc SBC microcontrollers ...

it has been said on this mail list,
that SPI is a good candidate for a bus technology to work _with_ realtime.

heres some work in that vein (maybe overlooked)

yeltrow's work:
a generic spi hal module so you can use other SPI devices ( rpi, 
arduino, mcp23s17, ENC28J60, theres a lot of spi stuff to hang onto such 
a bus )
https://www.forum.linuxcnc.org/24-hal-components/28851-spi-bus-generic-driver-and-st-l6480 


the files are on the forum for members linuxcnc-upload-2015-12-03.tar

erste's work:
for ethernet circumventing usb ( via spi
interesting as spi and ethernet seem to be future avenues
http://erste.de/ethraw/README

theres other efforts but less coupled to the spi grail

tomp


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Re: [Emc-users] Rock64 pre-orders on Banggood.

2019-03-27 Thread TJoseph Powderly

for those interested because of 2nd ethernet

this maybe useful:

a pinout of the header used
and small discussion of the needed isolation trafo 'magjack'

https://forum.pine64.org/showthread.php?tid=4898


also, re rt-preempt 64 bit on it...
 i see dev 'schooner' has done this
" |root@pine64:~# uname -a

Linux pine64 4.9.6-rt4-p64-73261-g5fb7565 #2 SMP PREEMPT RT Wed Feb 8 
07:45:02 UTC 2017 aarch64 aarch64 aarch64 GNU/Linux"


see end of thread at
https://forum.pine64.org/showthread.php?tid=394=5|

hth
tomp

i find it amusing that the header naming and advertising suggest this is 
pi5 compatible


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[Emc-users] pololu breakout

2019-03-23 Thread TJoseph Powderly

Gregg Eshelman hello
Do you imagine the breakout to use the long legged dip raft ?
with added screw terminals ( maybe phoenix pluggable connectors ) ?

I imagine similar for the PICnc project
but
i think i will remove the dip sockets on main board
and add the phoenix style green sockets to the main board.

I know its a more universal fix to change the pololu style adapter
but its so much dead wood that i cant bear it ;-)

I think a non-dip-raft cramps ramps PICnc is simple cut editing for any 
open design.


tomp


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Re: [Emc-users] mister nozzle shape

2019-03-21 Thread TJoseph Powderly
a quick google reminded me why this was familair
try googling 'spray nozzle'
i got
https://en.wikipedia.org/wiki/Spray_nozzle
and it showed me that the flat surface exit made NO atomization
thats not what you want, sorry
( i was trying to achieve the jumping water effect seen in many fountains
and that flat exit was great for the hot dog of water effect )
if you want the fluid stream broken into tiny droplets ,
the web page lists a lot of geometries to try
tomp

On Thu, Mar 21, 2019 at 10:50 AM Gene Heskett  wrote:

> On Wednesday 20 March 2019 21:29:19 TJoseph Powderly wrote:
>
> > Hello Mr Nozzle shape
>
> Did not get any useable hits on this side of the pond. URL?
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
>
>
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[Emc-users] mister nozzle shape

2019-03-20 Thread TJoseph Powderly
Hello Gene
iirc the end of the nozzle should be 'dead square'
meaning to taper, no burr, no fillet
cannot find a reference url now
but remember some test that surprised me
a small burr was the culprit
tomp

haha just re-read it
"Hello Mr Nozzle shape"
reminisent of Tom Waits in Legend of Buster Scruggs

>
>

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[Emc-users] linuxcnc brain surgery

2019-03-10 Thread TJoseph Powderly

https://ciis.lcsr.jhu.edu/dokuwiki/doku.php?id=courses:446:2016:446-2016-18:project_18_main_page
but where does the LinuxCNC Rocket Science class meet?
pretty cool kins too
tomp



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Re: [Emc-users] Conversational Mode

2019-03-04 Thread TJoseph Powderly

in general

http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Simple_LinuxCNC_G-Code_Generators#Other_G_Code_Generators 



specific conversational

http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Cp1

thanks Ray! thanks Matt, and thanks Lawrence

I remember using it to create code for a Heidenhain TNC,

sort of an offline programming since Heidenhains can be conversational.

a smop

tomp



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[Emc-users] mechanical animation resources Disney

2019-03-04 Thread TJoseph Powderly

i've come across links to this and had not reported it

i think it may be of interest ( or at least entertaining)


Disney has software to generate gear linkage systems for ~arbitrary paths

https://www.youtube.com/watch?v=DfznnKUwywQ


and to put icing on top of this cake

read Corey Doctorow's sci-fi about the animator engineer hackers at



Down and Out in the Magic Kingdom - Wikipedia 



*https://en.wikipedia.org/wiki/Down_and_Out_in_the_Magic_Kingdom*


( i read the book years ago, before i found the disney papers

i think it was an audio book, at least i can hear it in my head ;-)


tomp




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[Emc-users] parameters passed to hal comps

2018-12-28 Thread TJoseph Powderly
I read in several comp.c sources that functions in the comps get passed 
(void *arg, long period).


I have not found docs explaining this,

but guess *arg is the 'config string',

and that period is the period of the thread the comp is attached to.

is this correct?

Thanks TomP

examples:

boss_plc.c             Plc_Refresh(void *arg, long period)

counter.c             static void capture(void *arg, long period)

debounce.c         static void debounce(void *arg, long period)

etc



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Re: [Emc-users] sim still broken

2018-12-23 Thread TJoseph Powderly
and you can get all the parts for Little Giant Pumps.
( rotors, seals, brushes, motors.)
That makes any investment easier to swallow.
tomp tjtr33
Merry Merry! Happy Happy!

On Mon, Dec 24, 2018 at 1:28 AM Gene Heskett  wrote:

> On Sunday 23 December 2018 09:10:50 Bruce Layne wrote:
>
> > On Sat, 22 Dec 2018 at 23:50, Gene Heskett 
> wrote:
> > > The only thing I could not find with any
> > > search terms was a 1/2 to 1 gallon water tank to bury the water pump
> > > in.
> >
> > I have a Chinese water cooled spindle on two different home built CNC
> > routers.  I used a 5 gallon plastic bucket for the coolant tank on
> > each.  They were free with a cat litter purchase.  The plastic snap on
> > top is hinged.  The back 1/3 stays snapped in place and the front 2/3
> > can be hinged open in case I ever need to dump the coolant, add to it,
> > etc.  The lid keeps dust and debris out of the closed loop coolant
> > system.  A small pump is submerged in the coolant and the power cord
> > for the pump and the coolant inlet and outlet hoses are routed through
> > the back third of the lid that remains snapped onto the top of the
> > bucket.
> >
> > You don't need a big pump regardless of the size of the spindle
> > motor.  I use a small Little Giant pump that's often sold for
> > fountains, hydroponics, etc.  I get the best version they make and
> > it's still inexpensive.  Good brands include Superior and the upper
> > end versions of Little Giant.  Here are a couple of possible examples.
> >
> > https://www.ebay.com/itm/362400850664
> >
> > https://www.ebay.com/itm/233055122922
> >
> > I like the magnetic drive submersible pumps for reliability.  I'd pay
> > a little more for a long power cord to get any electrical splices well
> > away from the coolant and a pipe thread outlet port so you can easily
> > find a fitting to connect to the weird metric sized very flexible hose
> > that connects to the spindle motor.
> >
> > These small pumps don't produce much head pressure (aka "lift").  On
> > the larger CNC router, I tried to hide the coolant pump under the
> > enclosure and route the coolant lines on top of the enclosure and then
> > down to the spindle motor.  That didn't work because the pump couldn't
> > push the coolant that high.  I tried a much larger pump trying to
> > power my way through the problem and the head pressure was marginal.
> > It barely worked, most of the time, but the pump is cooled by the
> > coolant and the coolant temperature rose quickly.  The coolant was
> > cooling the pump more than it was cooling the spindle. I finally gave
> > up, went back to the smaller pump, and put the coolant tank on top of
> > the CNC router's enclosure so it was pumping down to the spindle motor
> > and back up to the coolant tank.  The pump only needs enough head
> > pressure to clear the top of the coolant tank.  A possible down side
> > is that a coolant leak could siphon most of the coolant out of the
> > coolant tank, but I used good hose and it hasn't been a problem.  On
> > the small CNC router, I placed the coolant tank on a shelf behind the
> > CNC router, and it also pumps down to the spindle motor.
> >
> > I continue to be impressed with the Chinese water cooled spindle
> > motors.  The quality is very good.  They brag about the precision
> > "German" bearings and they are very smooth and have a very precise
> > feel, certainly much better than a Porter Cable or Bosch wood working
> > router, even though I suspect that "German" is the deliberately
> > deceptive name of a company or town in China.  Still, good is good.
> >
> Like comparing a Portor-Cable 692 to a Hitachi MV12, The Hitachi is about
> another 50 bucks, and worth every penny. Soft start, dead smooth at any
> speed. Too much gingerbread on its outer though.
>
> > Using four gallons of coolant allows the larger CNC router to run
> > pretty much indefinitely now that the garage shop is air conditioned.
> > When it was hot in the summer, the coolant would get a bit warm in the
> > summer after five hours of hard use of the spindle motor.
>
> Which is probably 4x longer than it would get run here. This panel with
> all the bells enabled is 66 minutes on the 5 to 10 ipm HF toy. With a
> faster spindle 30 minutes.
>
> > Less coolant means it will get hotter sooner.  More coolant is an
> > easier and cheaper solution than adding a radiator.
>
> And I have one or two of those buckets. The square ones I might be able
> find room for, behind the mill, but will probably have to make a
> table/cabinet for the whole thing as I'd think its too tall to fit under
> the operator console as it only clears the floor about 48". Somebody
> mention 55 kg but I've not been able to find the weight. With free
> shipping, ebay doesn't tell you. 55kg = 121lbs. I'd best put castors on
> the back and and levelors on it, the shop floor sags with nearly half a
> ton in the middle of the floor now. And its been there close to 20
> years. Only treated 4x4's on 24" 

[Emc-users] Fwd: [Machinekit] Re: RPI gipo help

2018-08-28 Thread TJoseph Powderly

Seb hello,

1) sorry to hear Jeff's change of plans,

best of luck to him,

he's been enormous in the linuxcnc development.

2) i been working on the hal_gpio for linuxcnc and

i got this email this morning (thailand 28 aug 2018)

i can loadrt already it and will test asap.
(
i dont have the changes made to the src yet,
i do know i cant compile as is.
I know it calls macros that specifically say they are not for userspace.

(hahaha i hand wrote out the whole code to try to find why it would not 
build,

 and had the notebook out when the email arrived :-)

tomp


 Forwarded Message 
Subject:[Machinekit] Re: RPI gipo help
Date:   Mon, 27 Aug 2018 19:36:53 -0700 (PDT)
From:   KL Chin 
To: Machinekit 



Hi Tim,

I still testing both.

1) LinuxCNC had already 2.8 but MachineKit still based on 2.6.
2) The StepConf was so slow with MachineKit.
3) The Gui sample works on LinuxCNC

BTW. I had attached the hal_gpio.so for LinuxCNC, may be you can try it.
Just copy to LinuxCNC rtlib folder. I just change few lines of the 
hal_gpio.c.


Regards,
KL Chin

On Tuesday, 28 August 2018 03:42:31 UTC+8, Timothy March wrote:

   KL Chin why are you using LinuxCnc instead of Machinekit? The
   hal_gipo only works with Machinekit there is no gipo driver for
   LinuxCnc.

   Tim

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hal_gpio.so
Description: Binary data
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[Emc-users] adding linuxcnc repos to rpi

2018-08-20 Thread TJoseph Powderly

how to add linuxcnc repos to my raspian jessie rpi3B+ ?

i installed raspbian jessie from 
http://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/2017-07-05-raspbian-jessie.zip
then built rt kernel from https://github.com/raspberrypi/linux -b 
rpi-4.14.y-rt


I rebooted and checked that I was running rt-preempt
pi@raspberrypi:~ $ uname -a
Linux raspberrypi 4.14.59-rt37-v7+ #1 SMP PREEMPT RT Mon Aug 20 12:47:16 
+07 2018 armv7l GNU/Linux


then found linuxcnc deb at 
http://linuxcnc.org/jessie/2.7uspace/binary-armhf/linuxcnc-uspace_2.1.14_armhf.deb

thats a real easter egg!

I was worried about the deps needed by the install, so
in synaptic, i added repo    deb http://linuxcnc.org/  jessie base
then exited synaptic
then ran sudo apt-get update and got

"Failed to fetch htt://linuxcnc.org/dists/jessie/Release
unable to find expected 'base/binary-armhf/Packages'
in Release file ( wrong source.list or malformed file )"

I was lucky that gdebi could install the deps
sudo gdebi linuxcnc-uspace_2.1.14_armhf.deb worked a treat

but how do i use synaptic in the future?
the apt-get update error has me worried.

thx tomp

btw: 83.4uS max latency-histogram --nobase 1mS thread  4 glx gears  
isolcpus=2,3   3693secs  ssh'd in over eth0


will let it cook overnight but looks pretty good

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Re: [Emc-users] buildbot web page

2018-07-24 Thread TJoseph Powderly
Well the first attempts to use had lots of hangs,
so i put the rpi in the 'ton yen' ( ice box)
to see if it would run longer than 10 minutes.

But,when I brought it out,
it beaded up with so much,
that I didnt try using it untill it was really dry again.
I found a big floor fan works well.
The unit has 3 heat sinks already.

Humidity here is 3x a day showers
and 3x a day changes of clothes
( peeling off t-shirts is a real exercise )

The humidity may help
but I'll keep the air circulating a lot.

tomp

On Tue, Jul 24, 2018 at 7:51 PM, andy pugh  wrote:

> On 24 July 2018 at 09:30, Gene Heskett  wrote:
>
> >> they really need the cooling, its hot and humid here, rainy season ,
> >> near 38C daily
> >
> > Ahh, then yes, lots of cooling.
>
> Unless the heat-sink relies on sweating to work I very much doubt that
> the humidity matters to the Pi.
> In fact it probably helps: https://bit.ly/2LEMh1H
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
> 
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Re: [Emc-users] buildbot web page

2018-07-23 Thread TJoseph Powderly
wow
thanks seb, looking at it now.
"Index of /~buildmaster/dists/jessie/scratch-sim/binary-armhf"
(I'm glad I didnt mangle the web page :-) )

tomp

On Mon, Jul 23, 2018 at 10:54 PM, Sebastian Kuzminsky <
seb.kuzmin...@gmail.com> wrote:

> On Sun, Jul 22, 2018 at 11:10 PM TJoseph Powderly 
> wrote:
> >
> > the page at
> > http://buildbot.linuxcnc.org/
> > lists an armhf build available for jessie scratch
> >
> > Jessie (uspace: realtime with RT-Preempt, and simulation)
> > architectures: amd64, armhf, i386
> >
> > deb http://buildbot.linuxcnc.org/ jessie scratch-rtpreempt
> > deb-src http://buildbot.linuxcnc.org/ jessie scratch-rtpreempt
> >
> > arm build only exist in wheezy and jessie
> > there are no arm anything files in newer or older builds
> > i think I can edit this webpage
> > but the maintainers ought to know it just doesnt exist
>
> That's a bug in the buildbot webpage, thanks for the bug report.
>
> The debs exist, but the URLs are wrong.  They should end with
> "scratch-sim", not "scratch-rtpreempt".
>
> I've updated the buildbot webpage with the correct URLs.
>
> --
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>
> 
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[Emc-users] buildbot web page

2018-07-22 Thread TJoseph Powderly
the page at
http://buildbot.linuxcnc.org/
lists an armhf build available for jessie scratch

Jessie (uspace: realtime with RT-Preempt, and simulation)
architectures: amd64, armhf, i386

deb http://buildbot.linuxcnc.org/ jessie scratch-rtpreempt
deb-src http://buildbot.linuxcnc.org/ jessie scratch-rtpreempt


arm build only exist in wheezy and jessie
there are no arm anything files in newer or older builds
i think I can edit this webpage
but the maintainers ought to know it just doesnt exist

tomp
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[Emc-users] frank hermann xatc exteremely simple automatic tool changer

2018-07-16 Thread TJoseph Powderly
I have not seen this mentioned on the list.
Its interesting enough, esp after i tried opening and closing my collets
with quarter turn.

"people is so clever"

https://hackaday.com/2016/06/20/hackaday-prize-entry-diy-automatic-tool-changer/

i dont think i'll use the wifi web socket esp/arduino connection though
a remap may suffice for testing

boohoo, the gif is 2.7 meg, else i'd attach it

tomp
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[Emc-users] interesting power transmission

2018-07-14 Thread TJoseph Powderly

I've seen roller racks before but this is circular.

something says to me "Bridgeport belt replacer"

other voices says "hmm, weak force transfer"

but a beautiful disk and interesting programming problem

TomP


https://www.youtube.com/watch?v=-9gQ1KRhesM



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Re: [Emc-users] no news any more?

2018-07-07 Thread TJoseph Powderly
OK here in Penang, My.
I check almost everyday.
Must be local problem

On Sun, Jul 8, 2018, 12:06 Peter Blodow  wrote:

> How come I have not read any news for 5 days now? Is there something
> wrong with servers etc., or are there really no problems around??
> Peter
>
>
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Re: [Emc-users] Raspberry Pi PREEMPT-RT --> Scheduling and message passing in general

2018-06-25 Thread TJoseph Powderly
re
"The programming software has a mode where yu can call up a library
of old 74LSxxx parts and drop them on a canvas and draw lies between pins
"
You talkin bout Cypress's PSoC Creator, Willis?
;-)
It doesnt sound like Xilinx or Altera's tools.
tomp


On Mon, Jun 25, 2018 at 9:43 AM, Chris Albertson 
wrote:

> Maybe we've gone full circle.  I just bought an $11 part on eBay.  I it is
> a CPLD.  Like an FPGA but smaller and much less expensive and easier to
> use.   The programming software has a mode where yu can call up a library
> of old 74LSxxx parts and drop them on a canvas and draw lies between pins.
> They have other functional blocks too, just see of them have the old 7400
> numbers.I did something silly wired a bunch some LEDs to a 4-bit
> counters and watch in count in binary.   The 7400 series versions "Hello
> World" but now I can do that with just one chip.The little CLPD can
> simulate maybe 100 7400 type chips and they can be clocked at 50MHz
>
> SO it is the one chip solution that you wanted but the old SSI based
> solution that engineer wanted t build.
>
> My use for it was counting encoder pluses up to about 1MHz. but I found I
> could do that with a microcontroler for 1/3rd the cost and size.
>
>
>
>
> On Sun, Jun 24, 2018 at 4:05 PM John Dammeyer 
> wrote:
>
> >
> > > What we have is the result of historic accident.   EMC and machine
> > control
> > > in general got its start when computers where EXPENSIVE.  You design
> > > differently when you parts for five digit price tags than when you
> parts
> > > are nearly free.  If computers cost $2 and two of them could fit on
> your
> > > thumbnail then you might just be inclined to use more of them.
> >
> > I remember having arguments with an engineer about using micro-processors
> > (with EPROM) to do simple logic.  He was adamant that TTL was a better
> > solution because the processor was too expensive.  My point was that
> > processors were coming down in price and there were now single chip ones
> > with EEPROM windows (before onboard flash) and that one chip would do the
> > job of a large number of discrete devices.
> >
> > At the same time I was wire-wrapping up an S-100 board with an NED u7220
> (I
> > think that was the number) video controller and the rest of the logic was
> > all 74S series.  He was wrong of course.  Many projects don't need 20 TTL
> > or
> > CMOS chips and an Arduino is an ideal replacement.  But only to a limit.
> >
> > > Combine the high-reduction cycloidic drive with a small low cost BLDC
> > > motor
> > > and you have a point for a robot arm (or leg) or a machine tool axis.
> > > Here is a model of one of these motor and all -- please try the
> "explode"
> > > button to see the insides of the drive.  (The button turns the drawing
> > into
> > > a parts diagram) https://a360.co/2KhamaI
> > >
> > Very cool!
> >
> >
> > > OK back to real-time...
> >
> >
> >
> > 
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Re: [Emc-users] Looking for examples of conversational machine interface

2017-11-19 Thread TJoseph Powderly
Modern workplaces and machines are not for craftsmen. They are for
operators who get a big start  and a big stop button. Design and checking
is outside the machine.  The idea is that the process designer and
supervisor hands the operator blanks and gets parts.  This is not what the
hobbyist needs but is where the industry is headed ( or at). It's a shame
but true that numbers have replaced craftsmanship. Count the number of
apprentices you find. I like the feel of turning a crank and watching the
chips but I can't get paid for it.

On Nov 20, 2017 09:51, "andy pugh"  wrote:

> On 20 November 2017 at 01:34, John Dammeyer 
> wrote:
>
> > So in other words, what you want already exists in several different
> ways.
> > What doesn't exist is this solution at a zero dollar cost.
>
> To an extent, it does.
>
> NGCGUI
> http://linuxcnc.org/docs/2.7/html/gui/ngcgui.html
>
> NativeCAM
> https://www.youtube.com/watch?v=fXCdTw6Q-QE
>
> Even, to an extent, my own lathe Macros.
> https://forum.linuxcnc.org/41-guis/26550-lathe-macros
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
> 
> --
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> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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Re: [Emc-users] Looking for examples of conversational machine interface

2017-11-19 Thread TJoseph Powderly
Modern workplaces and machines are not for craftsmen. They are for
operators who get a big start  and a big stop button. Design and checking
is outside the machine.  The idea is that the process designer and
supervisor hands the operator blanks and gets parts.  This is not what the
hobbyist needs but is where the industry is headed ( or at). It's a shame
but true that numbers have replaced craftsmanship. Count the number of
apprentices you find. I like the feel of turning a crank and watching the
chips but I can't get paid for it.

On Nov 20, 2017 09:51, "andy pugh"  wrote:

> On 20 November 2017 at 01:34, John Dammeyer 
> wrote:
>
> > So in other words, what you want already exists in several different
> ways.
> > What doesn't exist is this solution at a zero dollar cost.
>
> To an extent, it does.
>
> NGCGUI
> http://linuxcnc.org/docs/2.7/html/gui/ngcgui.html
>
> NativeCAM
> https://www.youtube.com/watch?v=fXCdTw6Q-QE
>
> Even, to an extent, my own lathe Macros.
> https://forum.linuxcnc.org/41-guis/26550-lathe-macros
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
> 
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Re: [Emc-users] Pine64 / Rpi3

2017-10-17 Thread TJoseph Powderly
Hi Andy, this chip?
http://www.nxp.com/documents/data_sheet/GTL2000.pdf
Thx Tomp tjtr33

On Oct 17, 2017 6:29 PM, "andy pugh"  wrote:

On 17 October 2017 at 07:47, Greg Bentzinger via Emc-users
 wrote:

> Ideally it would be great if someone could design a cape/hat/shield/
whatever that mates to the Rpi/BBB and could approximate a EPP parallel
port.

The hardware part exists.
https://photos.app.goo.gl/SGKipu5XFvjNscfy2
(The chip is a level-shifter)

I made 20 but I think I gave them all away.

--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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Re: [Emc-users] FPGA arty

2017-10-14 Thread TJoseph Powderly
It has no CPU unless you build one from cells. There are soft cores
available. This is an add on card like mesa without any pci or ethernet
_yet_.

On Oct 14, 2017 7:22 PM, "Nicklas SB Karlsson" <nicklas.karlsso...@gmail.com>
wrote:

> A circuit with a reasonable fast CPU, Ethernet and the FPGA for an
> arbitrary number of communication ports, UART, SPI, CAN would probably be
> the ideal device for a linuxcnc server.
>
> I read fast and can't figure out the CPU on this chip.
>
> On Sat, 14 Oct 2017 18:05:52 +0700
> TJoseph Powderly <tjt...@gmail.com> wrote:
>
> > Has anyone looked at 'arty' for linuxcnc/hal?
> > http://rdepablos.merlitec.com/arty-and-linux-1-fpga . its nice to get
> the
> > whole toolset with it inside 100$US.
> >
> > Regards Tomp tjtr33
> > 
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[Emc-users] FPGA arty

2017-10-14 Thread TJoseph Powderly
Has anyone looked at 'arty' for linuxcnc/hal?
http://rdepablos.merlitec.com/arty-and-linux-1-fpga . its nice to get the
whole toolset with it inside 100$US.

Regards Tomp tjtr33
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[Emc-users] hal include

2017-07-22 Thread TJoseph Powderly

Gene
My googlefoo is failing to find anything
about hal files using includes,
and my fuzzy mem thinks you were doing this.

Have you used hal files with included sub-files?

thx
tomp tjtr33


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Re: [Emc-users] configuration via Gschem

2017-07-14 Thread TJoseph Powderly

wow nicklas
i poked at scheme many years ago
out came crawling, some lamdas, cdrs and cars
i ran away

you're brave
i wont wade into those waters,
but if you want some geda symbols or testing, I will help

tomp tjtr33

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Re: [Emc-users] configuration via Gschem

2017-07-14 Thread TJoseph Powderly
(sorry, looks like i made a private reply to andy and not to the list, 
so here's the msg)


I wrote that stuff for geda
i havent looked at it for years
I was dissapointed in the zoom and pan, and how to graphically handle 
the threads

so i wandered off looking at other connected box frameworks
ths morning as i looked at Node-Red's audio kit for Teensy ( a cnxd box 
gui )

https://www.pjrc.com/teensy/gui/
this email arrived,
odd coincidence

most guis have limitations, such as:
only 1 output
inputs only on one side
labeled nets
draggable elements
saving edits
netsfile->graphic->netfile
java dependancies (self imposed limitation)
lacking scaling of image
lacking meta-components aids in scaling issues)

i wanted a perfect solution and decided to lower my expectations (TM SNL)
i think it may be useful to use geda-schem to illustrate some conncetions
ditto for rockhopper and the eagle for hal effort
but i see no solution for a full netlist->graphic editor->netlist

Lift Architects of Boston did a rear projected FTIR touchtable for 
grasshopper diagrams
( connected boxes for rhino ), and that was the closest thing to my 
dream so far.  Users
could pinch and scroll and zoom a screen nearly 20"x80" to view the 
diagrams. I cant find the

videos now, maybe they are Vimeo not youtube.
yep
https://vimeo.com/72447811


oh,its best to reiterate the basic idea
long lists of driving instructions suck, maps rule
long net lists suck, diagrams rule
short & sweet
regards
tomp tjtr33

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Re: [Emc-users] LCNC TED Talk style

2017-06-16 Thread TJoseph Powderly

i replied direct to dave, so the user list didnt see this

it maybe of use for the talk
"""

hi dave
maybe it was

viestartss 

https://www.youtube.com/watch?v=WSQO3IkQ0Lo
while we're at it
rudy de prez's paper may be interesting

and the antenna array using linuxcnc
i didnt find it yet :-(

tomp tjtr33

On 06/15/17 21:15, dave wrote:
Can someone find a video of the guy from Finland (vistuers ???) and 
his mig welding of pipe T's?

It has been a while and I can't even find an email address.

Dave

"""
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Re: [Emc-users] new thread inspired by Christophers question about 3d printer sliceing SW. (Gene Heskett)

2017-05-17 Thread TJoseph Powderly

recursion, stack full , hahaha

even in russian it was good joke

tomp tjtr33

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Re: [Emc-users] Emc-users Digest, Vol 133, Issue 31

2017-05-13 Thread TJoseph Powderly

gene could you try not changing anything and just boot it
if the basic simple way to initially check it out , doesnt work,
then stop and look at whats going on,
dont change stuff in the beginning

i think you'd like to see something just work

i'd really like you to have success with this

The UDOO X86 Guide: Chapter One - Basic setup
https://www.youtube.com/watch?v=TBUXpMq06iU

tomp


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Re: [Emc-users] RPi alternatives (for detectives)

2017-05-11 Thread TJoseph Powderly
gene
i was just reading about armbian preempt-rt sources

look at https://github.com/armbian/build
look at https://github.com/armbian/build/tree/master/config/boards for 
boards
look at rt patch at
https://github.com/armbian/build/tree/master/patch/kernel/sun8i-default/30-real-time143-full-plus-rt-fixes.patch.disabled

people have been trying to get a generic build for preempt-rt on many of 
the raspi-esque boards
(orangepi bananapi cubieboard lime odroid pine64 tinkerboard udoo )
and people have been having trouble doing it

https://forum.armbian.com/index.php?/topic/2881-realtime-patch-not-working-with-orangepi-plus-2/

this is pretty deep water!

it MAY be possible
you'd need a build environment, and likely crosscompiling

i am guessing here,
but i think that cloning that git repo, then renaming
30-real-time143-full-plus-rt-fixes.patch.disabled
to
30-real-time143-full-plus-rt-fixes.patch
and building, will get you a preempt-rt image


maybe ;-)

regards
tomp tjtr33


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Re: [Emc-users] Emc-users Digest, Vol 133, Issue 18

2017-05-11 Thread TJoseph Powderly
On 05/09/17 02:41, Tim wrote:
>
> Tom just download everything from links I gave they are direct 
> download links that do work
> Here are the directions again I added a step that I forgot about 
> deleting Emlid reoository
> it is not needed and just gives a error during update. This is a 
> headless image you will be
> adding the desktop yourself just follow the directions.
>
> # Download, extract then install Emlid image to sdcard download at
>
> https://files.emlid.com/images/emlid-raspbian-20160718.img.xz
>
> # On Linux computer download Etcher to write image to sdcard at
>
> https://etcher.io/
>
> Download, extract and run Etcher with administrator rights
> Select the archive file with image and sd card drive letter.
> Click “Flash!”. The process may take a few minutes.
>
> --
>
> # RT-PREEMPT realtime kernel
> # Download kernel image
>
> http://download.frank-durr.de/kernel-4.4.9-rt17.tgz
> # Extract files
> # Start your file manager from terminal with root privileges, my file 
> manager is thunar so I use:
> # sudo thunar
> # Copy extracted files inside boot directory, to boot directory on 
> sdcard choose to overwrite files
> # Copy extracted file lib, to root of other partition on sdcard choose 
> to overwrite files
>
> ---
>
> # Install Sdcard into PI
>
> user = pi
> password = raspberry
>
> # Connect to wired network
> # Or shh from another computers Ethernet connection
>
> 
>
> # See posts at this site about rt patched kernel on pi2 & 3 freezing 
> during wifi use
>
> https://www.raspberrypi.org/forums/viewtopic.php?f=29=159170
>
> # Need to add to end of cmdline.txt
>
> sudo nano /boot/cmdline.txt
>
> #Add the following
>
> dwc_otg.fiq_fsm_enable=0 dwc_otg.fiq_enable=0 dwc_otg.nak_holdoff=0
>
> sudo reboot -n
>
> -
>
> # Update to correct keyboard layout
>
> sudo dpkg-reconfigure keyboard-configuration
>
> -
>
> # Generate locales
>
> sudo dpkg-reconfigure locales
> #add correct language
> en_US.UTF-8
> locale -a
> #To check locale
>
> ---
>
> #Update Time Zone
>
> sudo dpkg-reconfigure tzdata
>
> 
>
> Remove emlid repository
>
> sudo rm /etc/apt/sources.list.d/emlid.list
>
> 
>
> sudo raspi-config
> #NOTE: do not Overclock
> 1 Expand File system
>   when finished choose to reboot
> If you need other things enabled such as SPI or C12 ect. it can be 
> done here
> --
>
> sudo apt-get -y update && sudo apt-get -y upgrade
>
> 
>
> # RPI 2 or 3
> sudo apt-get install -y mate-core mate-desktop-environment xorg lightdm
> sudo apt-get install -y network-manager-gnome synaptic iceweasel xterm
>
> # RPI 3
> sudo apt-get install -y pi-bluetooth
> sudo apt-get install -y bluetooth bluez blueman
>
> ---
>
> #Setup network manager
>
> sudo nano /etc/network/interfaces
> #Comment out
> #iface wlan0 inet dhcp
> #iface default inet dhcp
> #iface wlan1 inet dhcp
> #iface eth0 inet manual
> # Use control key and x to save and save to default
>
> -
>
> #Update rpi firmware without over writing rt kernel
>
> sudo apt-get install rpi-update
> sudo SKIP_KERNEL=1 rpi-update
>
> sudo reboot -n
>
> 
>
> #Install Linuxcnc
>
> On RPI goto web page
> http://buildbot.linuxcnc.org/
> Follow directions to install 2.7 or Master, Jessie (uspace: realtime 
> with RT-Preempt, and simulation), armhf
> # first add repository key, open Mate Terminal look for it in system 
> tools menu item, you can copy and paste from web site page:
>
> sudo apt-key adv --keyserver hkp://keys.gnupg.net --recv-key E0EE663E
>
> # Start text editor Pluma with root privliges like this:
>
> sudo pluma /etc/apt/sources.list.d/linuxcnc-buildbot.list
>
> #Add the following to file for 2.7 then save:
>
> deb http://buildbot.linuxcnc.org/ jessie 2.7-sim
> deb-src http://buildbot.linuxcnc.org/ jessie 2.7-sim
>
> # Now update the system:
>
> sudo apt-get update
>
> # Now start Synaptic which will only start from terminal
>
> sudo synaptic
>
> # Type in search box linuxcnc find the following, then click and mark 
> for 

Re: [Emc-users] RPi alternatives (for detectives)

2017-05-11 Thread TJoseph Powderly
Erik hello

On 05/11/17 14:01, Erik Christiansen wrote:
> Gene, what I bought is a Udoo X86, and on their forum there's talk of
> this and that not working too, at least until someone tells them how to
> do it. My only issue so far is that I'm a bit down the delivery list,
> and it may yet be a week or two before mine arrives. (Still, it's better
> that they hauled up and fixed the PCB issue, rather than ship substandard
> goods.)

> It ought to be able to boot from USB or SD card, so just do the same
> vanilla stuff as in the Udoo howto, which is here?:
>
> https://www.udoo.org/tutorial/creating-a-bootable-micro-sd-card-with-linux-ubuntu-from-image/
>
> You just grab any linux distro you fancy, off the intertubes. (I've put
> a ubuntu-16.04.1-desktop-amd64.iso onto a flash drive, and am impatient
> for the board to arrive.)
i thought about the ud00 x86 for linuxcnc

i read the 'use any linux x86 distro'

but

is there reason to think it can run the linuxcnc iso for x86?

can it become a tiny realtime control?


right now i'm trying to get preempt-rt onto an opi+2e for similar reasons


these tiny boards can drive you nuts

i get the impression that they're all built for settop boxes

and rejects sold as the latest greatest linux microcontroller


today i 'fixed' the SD block read fails with a paper shim ( not by 
buying class 10 sd )

today i 'fixed' the 'cant enumerate device on...' by bending down the 2 
tabs on the usb jack

( not by buying a new mouse )

i am firm believer in 'things generally work'

and in 'connections are 90% of electrical problems'


thanks

Tomp tjtr33


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Re: [Emc-users] Emc-users Digest, Vol 133, Issue 18

2017-05-07 Thread TJoseph Powderly
On 05/07/17 21:33, Tim wrote:
> I have been playing with RPI for some time now trying to get 
> Hal2Arduino working for a multi-task hobby cnc that I have built. Have 
> software working for xyza axis still need to hook up drivers and 
> steppers. I know that linuxcnc is not going to work as well as what 
> Gene Haskett is doing but this is a hobby machine. Still having 
> trouble getting xyuv axis part of machine working have a config file 
> error to figure out.
> But the reason why I responded to this post I have instructions on 
> how to create a minimal install for RPI image that will work on RPI2 
> or 3. Seems it could help allot of people, so here it is.
>
>
> Follow these direction in order to make a minamal Raspbian "Debian 
> Jessie" install
> with a realtime kernel,(ver. 4.4.9-rt17) and Mate Desktop and Linuxcnc
> sdcard will work with rpi2 or 3
>
> Download Emlid image for sd card then extract from
> https://files.emlid.com/images/emlid-raspbian-20160718.img.xz 
> ..

thanks!

i was just looking at emlid and found the forward references a dead end

and was thinking... 'will the last image work?'

tomp tjtr33


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Re: [Emc-users] Google Docs Scam

2017-05-05 Thread TJoseph Powderly
On 05/05/17 15:10, Lester Caine wrote:
> I KNEW your problem sounded familiar but could not think why ... I'd had
> the same problem after 'approving a new device' but not on the main
> thunderbird install. 'insecure application' fixed the problem as what it
> does is switches off the two stage authentication ... something that
> only really works with a mobile device anyway? Looks like Google are
> enabling it when you make changes to your profile but not telling us
> what the effects are :(
>
Thanks Lester

the next stage was setting up the 'honeypot' account

i use ymail for that

and it was another endless dialog in tbird | preferences | account 
settings | add email account

untill i used yahoo's web mail which immediately asked me to change my 
pwd etc

when that was done, thunderbird stopped telling me 'maybe your username 
or password is wrong'

these misleading fail messages are really bad

someone will argue its all for safety

i remember once joking to a really paranoid friend

"dont worry, there really is a "them" but they know whats best"


well my email is back up and junk os flowing into the honeybucket :-)


what the heck was i doing 2 days ago when this all started?

oh yeah , 3-32 volt triggers on SSR's seems to really be 4.6V minimum

another 'truth' to be dealt with


tomp tjtr33


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Re: [Emc-users] about to give up on the pi's

2017-05-04 Thread TJoseph Powderly
hi gene

On 05/05/17 08:16, Gene Heskett wrote:
> Charles;
> Its actually running the 2.8pre x86 code, for master-sim, straight out of
> the buildbot at .
? raspberry pi runs x86 code?
also
the url might be better as

   please look for   "jessie master-sim"

or describe it as an entry to sources.list

> Sim in this case only seems to mean its not running any cpu burning PID
> modules.

did you actually use
http://buildbot.linuxcnc.org/dists/jessie/2.7-sim/binary-armhf/linuxcnc-uspace-dev_2.7.8.16.ga380981_armhf.deb
 

or a similar armhf version?

> And doesn't appear to suffer because of the lack of PID's on a
> stepper system.
so you used a sim but got it to drive hardware?
the spi module talked to the 7i90 using a sim linuxcnc?
> With servo's I'd expect to need the PID's.  Other than
> that, the ini, hal, xml and assorted txt files should be able to run on
> an x86 box if I mailed them to you.  Correcting the i/o wiring, or the
> hal bits that assign a signal to such and such a pin to match up with
> what you've got built already would be the major reason to edit the hal
> files.
>
>> I have someone interested in using a RPi+Mesa instead of a BBB for a
>> small machine control.  We're not actively building Machinekit
>> packages for Raspbian, and I noticed the LCNC hostmot2 driver has a
>> RPi SPI driver.  Is that what you're using?
> yes, hm2-rpspi.ko, which is loaded by the hm2-7i90.ko card driver.
>
>> I don't want to point him
>> this direction if it's not particularly stable, but he's technically
>> savvy enough to get over a few rough spots.
> Since I'm walking on new ground with this, Martinjack seems to have
> disappeared, its a somewhat lonely trail.  I could use the company as I
> toddle along.
>
> Its just as stable as the same code running on an x86 box would be.
>
> The only warning I'd issue other than keeping motorish noises out of the
> system with a single point ground system, is the whole i/o on a pi comes
> and goes thru whats basically a usb hub, and keyboard/mouse events seem
> to be treated with very poor priority as the uptime accumulates.
>
> Generally fixed for a while by rebooting. That needs addressed by the pi
> builders, probably by adding enough memory that it stays out of the swap
> file.  It has a gig now, needs another from my diagnosis.
>
> Cheers, Gene Heskett

thanks gene,

i may look again at the OPI+2e which runs video smooth with recent ( 
april2017)  debian xfce4

apparently some tricks can be pulled using DietPi to make it more 
lightweight and hopefully les latent.

tomp tjtr33

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Re: [Emc-users] Google Docs Scam

2017-05-04 Thread TJoseph Powderly
On 05/05/17 01:56, Nicklas Karlsson wrote:
> Yes I got your E-mail.
>
Hello Nicklas, sorry if it was the scam email about a document
( not just these emails from linuxcnc list )

i finally got it to work

history---

i changed may password and could not log in thru thunderbird to my gamil 
account

i completely removed and reinstalled thunderbird. i disabled local 
caching of apt files

i could not log in, ('next' button did nothing )

i removed tbird again and reinstalled   same thing

i removed tbird again and forced install of earlier precise version ( 
had upgraded precise version failing )

i got slightly different results

i set google prefs to allow 'insecure application'

i completely removed and reinstalled tbird

then thunderbird loaded, logged in, verified me and my account,

and here i am !

so thunderbird is 'insecure' according to google...

thats why i could access thru web gmail on any system, thats all google 
blessed

arrgh!

tomp tjtr33



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Re: [Emc-users] Google Docs Scam

2017-05-04 Thread TJoseph Powderly
decent info
http://www.tomsguide.com/us/google-docs-phishing-scam,news-25018.html

anybody get email from me?
report says everyone ion my email add ook would get the mail
i dont think i opened it... it looked suspicious

mine was from S.

tomp tjtr33

On Thu, May 4, 2017 at 5:37 PM, TJoseph Powderly <tjt...@gmail.com> wrote:

> ooops, firefox cookies were enabled, BUT theres also thunderbird's 'accept
> cookies'
> great, now back to unresponsive google signin dialog inside thunderbird
> free advise to all tbird users with gmail addresses
> save all your email
> Dont just change pswd.
> Dont uninstall tbird.
> wait for some better news from google,
> some succesful news.
> tomp tjtr33
>
> On Thu, May 4, 2017 at 5:27 PM, TJoseph Powderly <tjt...@gmail.com> wrote:
>
>> still cant log in under thunderbird. dialog did change to
>> """
>>
>> You've reached this page because we have detected that cookies are
>> disabled in your browser. The page you attempted to load cannot display
>> properly if cookies are disabled.
>>
>> Please enable cookies <https://support.google.com/accounts/answer/61416>
>> and retry the operation or go back in your browser.
>>
>> """
>> cookies have been enabed per the link in the message, system cold booted
>> and the story remains the same.
>> AND
>> i can use web gmail without problems ( i are writing this now arent i? )
>> tomp tjtr33
>>
>>
>
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Re: [Emc-users] Google Docs Scam

2017-05-04 Thread TJoseph Powderly
ooops, firefox cookies were enabled, BUT theres also thunderbird's 'accept
cookies'
great, now back to unresponsive google signin dialog inside thunderbird
free advise to all tbird users with gmail addresses
save all your email
Dont just change pswd.
Dont uninstall tbird.
wait for some better news from google,
some succesful news.
tomp tjtr33

On Thu, May 4, 2017 at 5:27 PM, TJoseph Powderly <tjt...@gmail.com> wrote:

> still cant log in under thunderbird. dialog did change to
> """
>
> You've reached this page because we have detected that cookies are
> disabled in your browser. The page you attempted to load cannot display
> properly if cookies are disabled.
>
> Please enable cookies <https://support.google.com/accounts/answer/61416>
> and retry the operation or go back in your browser.
>
> """
> cookies have been enabed per the link in the message, system cold booted
> and the story remains the same.
> AND
> i can use web gmail without problems ( i are writing this now arent i? )
> tomp tjtr33
>
>
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Re: [Emc-users] Google Docs Scam

2017-05-04 Thread TJoseph Powderly
still cant log in under thunderbird. dialog did change to
"""

You've reached this page because we have detected that cookies are disabled
in your browser. The page you attempted to load cannot display properly if
cookies are disabled.

Please enable cookies 
and retry the operation or go back in your browser.

"""
cookies have been enabed per the link in the message, system cold booted
and the story remains the same.
AND
i can use web gmail without problems ( i are writing this now arent i? )
tomp tjtr33
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Re: [Emc-users] Google Docs Scam

2017-05-03 Thread TJoseph Powderly
I changed my google pwd, now cant get tbird to get mail. A never ending
'enter your credentials' window comes up with login. After confirming
 email addy, the endless loop begins. I suspect google is trying to be safe
but THIS message comes from google's own web email. Tbird  is trying to
access gmail. This is on debian 7 linux, but i chroot to wheezy while under
chrome ( aka 'crouton'), so maybe some unfoerseen problem in this chroot
system ( doing this from google chrome side now ) (and still waiting on
'next' button in dialog... funny it never times out, spinny red circle et
al )

On Thu, May 4, 2017 at 9:09 AM, Dave Cole <linuxcncro...@gmail.com> wrote:

> I received a share invite today from one of my customers via my Gmail
> account, but before I could open it, Gmail deleted it.
> So it appears that Google is actively trying to kill it.
>
> Dave
>
> On 5/3/2017 9:06 PM, TJoseph Powderly wrote:
> > one here this am
> > from a known person ...google docs 'shared a file with you'
> > thx tomp tjtr33
> >
> > On 05/04/17 02:11, andy pugh wrote:
> >> I am getting a flurry of invitations to view Google docs. They lead to
> >> a google server, so look genuine, but I am pretty sure they aren't. I
> >> think they are just Google-hosted.
> >>
> >> They show up as from people I know.
> >>
> >> I was taken in long enough to have to now change my Google password.
> >>
> >> Be careful out there.
> >>
> >
> > 
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Re: [Emc-users] Google Docs Scam

2017-05-03 Thread TJoseph Powderly
one here this am
from a known person ...google docs 'shared a file with you'
thx tomp tjtr33

On 05/04/17 02:11, andy pugh wrote:
> I am getting a flurry of invitations to view Google docs. They lead to
> a google server, so look genuine, but I am pretty sure they aren't. I
> think they are just Google-hosted.
>
> They show up as from people I know.
>
> I was taken in long enough to have to now change my Google password.
>
> Be careful out there.
>


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Re: [Emc-users] Slide covers

2017-04-20 Thread TJoseph Powderly
Johann hello
maybe
the material like used in bluejeans coated in polyurethane ( a marine 
finish )
http://www.cnczone.com/forums/general-metalwork-discussion/58425-cnc.html
HTH tomp tjtr33

On 04/20/17 14:22, Johann Beukes wrote:
> Hi Guys
> Can someone help me please? I need tonmake my own telescopic slide covers.
> I need to know what material I can use to fold my own? Its like tarp with
> rubber impregnation.
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[Emc-users] usb sniffer

2017-04-05 Thread TJoseph Powderly
like this?
https://wiki.wireshark.org/CaptureSetup/USB
intended for net traffci, but it doesnt know what being transferred
tomp

On 04/06/17 08:06, Gene Heskett wrote:
> snip
>
> Now to get this sorta back on an lcnc track, do we have a wireshark 
> like utility for usb stuff? I am missing both keydown, and keyup 
> events on this pi. Cheers, Gene Heskett 


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Re: [Emc-users] 3D Printers

2017-03-28 Thread TJoseph Powderly
On Tuesday 28 March 2017 10:48:18 andy pugh wrote:
>> I find myself astonished that I don't have a 3D printer.
>> I am thinking of buying one.
>> Longer-term I think I will end up making a large-format delta pritner,
>> so the one I buy will be more ot a toe-dipping exercise, and I am
>> looking at:
>> http://www.ebay.co.uk/itm/182454763977
>> Any thoughts?
>

Andy,
Why dont you add an extruder to an existing machine?
I'm sure you have cnc machines already.

The extruder could be swapped for a spindle.

I read that people slow 3D printers down to 30-60mm/sec to get better 
prints,
so...
can you get 1.8 to 3.5m/min?
or is that the reason people dont do this?

also,
would you use Linuxcnc to control what you do end up getting?

I was considering putting an extruder on my table top just to model some 
ideas.


Jepler's (?) recommended unit is hard to find but soon to be back in 
stock in USA

https://emergent.unpythonic.net/01479582514

MP Select Mini 3D Printer
Product # 15365
$199.99
Out of stock ETA: 4/16/2017

tomp tjtr33

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Re: [Emc-users] damn radio shack

2017-03-08 Thread TJoseph Powderly
try knipex pliers wrench

On 03/08/17 18:55, Mark wrote:
> On 03/07/2017 11:35 PM, Gene Heskett wrote:
>> On Tuesday 07 March 2017 23:00:32 Todd Zuercher wrote:
>>
>>> Ahhh, ye old "booger" wrench, the perfect tool for rounding off "any"
>>> sized bolt.
>>>
>> Shhh now, Todd, you might let the cat out of the bag, and its mad enough
>> already. :)
>>
>> Actually, if it has a solid frame, and a well made screw, they aren't
>> that bad.  But the $7 model?  Donbesilly. But its ideal to clamp to the
>> mill table with something under the handle, and the screw well
>> tightened, and run a 1/4" end mill over it till theres only an eighth
>> inch left.  And hide it in a drawer of the lathe till you need to loosen
>> those same nuts again, so there is (occasionally) a method to my
>> apparent madness.
>>
>> I carried a 4" real "Crescent" wrench in my pocket for almost 40 years
>> before I took a good look at it, decided it was worn enough to trash,
>> did, then have yet to find another copy of that same wrench, it could go
>> up to about 3/8"s of an inch which was usually enough.  That 4"er was
>> truly a quality made tool and served me well. It was truly an old old
>> friend. Unfortunately, Crescent is now owned by Cooper Tools, and it is
>> no longer the quality product all others are compared to. Cooper is imo,
>> incapable of building a quality tool.
>>
>> Cheers, Gene Heskett
> You ought to trythe Snap-On version of the venerable Crescent wrench.
> No rounding off nuts or bolts with those.  Unless you don't snug up the
> jaws.  No loose sloppy fits in the Snap-In version. My Dad got me the
> three piece set for my birthday almost thirty years ago and the chrome
> finish still looks brand new, the jaws are still solid and fit and all
> three down to the 4" one still get a good workout.
>
>
> Mark
if you can find 'em, they're great
http://www.knipex.com/index.php?id=1216=1=group_detail=1358=2175
tomp tjtr33

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[Emc-users] OT: good tiny edm infos

2017-03-06 Thread TJoseph Powderly
Nicklas Sarah Bari et al,
I stumbled on a few _very_ good sites for tiny edms

(many) using real on/off time fet edm power supplies ( spark generators).
some french some german, but easy to understand the schematics and 
builds and movies.

most homebuilts use r/c capacitive discharge, which triggers wg-hen it 
wnats to
these (some) use real microsecond on and offtime oscillators

most use window comparator servo drives ( classic servo system )

http://www.usinages.com/threads/systeme-delectro-erosion-fait-maison.78941/print?page=1

http://www.hcp-hofbauer.de/indexerodier.htm

http://www.dl1dow.de/artikel/mikro-edm/index.htm

thought i'd drop this note so others can find it in the swamp called 
'interweb'.
tomp
tjtr33

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Re: [Emc-users] Durable Paint [Was: gee, is list in anechoic chamber]

2017-03-04 Thread TJoseph Powderly
andy
it may be of use for readers to know RAL is a standard for colors used 
by many machine manufacturers
I know from matching customers desired machine color to manufacturer's 
resources.
and
readers can buy a RAL color swatch pretty cheap on eBay.
Europe & Asia use it, UK also
but good ol USA still speaks about Bridgeport Grey and Elox Blue etc
it may help someone restore a machine
tomp tjtr33

On 03/05/17 00:26, andy pugh wrote:
> ...

> I used this for my lathe. 
> https://www.smithandallan.com/products/tractol-paint/1447-tractol-329-formerly-be27-single-pack-machinery-enamel-all-colours/
>  
> If you click "Select Colour" you can see 4 separate sets of 
> "industrial" colours, including many lathe like ones. (I think my 
> lathe ended up RAL 7031 Blue Grey) 


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Re: [Emc-users] Need pyvcp-xml expert

2017-03-02 Thread TJoseph Powderly


On 03/02/17 21:06, John Thornton wrote:
> Not for me. I assume Gene just commented them both out when the first
> one tossed an error at him.
>
> JT
>
ah, thanks JT
i thought Gene actually had 2 errors,

sometime i debug in a similar fashion ( overkill, like comment out all 
the occurances of '.' hehehe )

sometimes i swing a dead cat over my head too ( mark twain )

isnt there a mode in most text editors for finding/highlighting closing 
braces/parens/brackets?
I use Scite, it can do that, but mainly i use it for folding which 
unclutters my view of long code files

Gene, try to fix the 1st error you get reported,
ignore all but the 1st
then try again
( and fix the new 1st error :-)

and I like Schoolbook fonts, they were made to be easy to read, easy to 
distinguish, for kids
so many times i had 1 & L & l & | mixed up I dunno

thx John
tomp


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Re: [Emc-users] Need pyvcp-xml expert

2017-03-02 Thread TJoseph Powderly
is there still an error on 2nd commented line?
tomp


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Re: [Emc-users] MPG detents

2017-03-01 Thread TJoseph Powderly



On 03/02/17 10:31, Jon Elson wrote:
> ---snip---
> I use a 100 "pulse" MPG, and the encoder counter counts all
> transitions, and have no problem with jitter, and can count
> off the detent clicks by feel.  There isn't much jitter on a
> 100 pulse/rev encoder, especially with the detent.
> I also have a button that has to be held to enable jogging,
> so there will be no jitter (or movement at all) when that
> button is not being pressed.  That saves me from accidents
> when I bump the MPG dial.
ah, the deadman switch

on the back of Heidenhain hand controls
there is a bump covered by soft rubber
you hold the unit with fingers wrapped around it to activate the hand wheel
or
since the units have strong magnets,
just slap the hand control onto a nearby ferrous surface and use it

might be handy design idea

also, Heidenhain had no detent on early units
so users were taught to hold them
with some finger tips cradling rear (enable)
and one finger lightly rubbing on the wheel (hack for no 'detent')

else a nervous operator would have trouble doing manual touch offs ( 
they used voltage drop )

the trouble was, the system would detect a touch and disable the 
'forward' direction
BUT the nervoue operator was faster than the sensing,
so the direction disabled was wrong due to his jittery wheel motion

the finger damper was a stupid 'solution' but it worked

> Jon
regards
tomp


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[Emc-users] more wacky machines using Linuxcnc

2017-03-01 Thread TJoseph Powderly
heres some wild kins for ya
http://en.sv-jme.eu/data/upload/2015/01/03_2013_1619_Zivanovic_04.pdf
i was looking at how NX and Catia required the machine's kins to output 
gcode
and stumbled on this paper
i laughed out loud when i saw the AXIS screen
tomp tjtr33


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Re: [Emc-users] Problem with genserkins

2017-03-01 Thread TJoseph Powderly
i think...

On 03/01/17 09:16, Charles Steinkuehler wrote:
> On 2/28/2017 5:52 PM, andy pugh wrote:
>> On 26 February 2017 at 22:46, Charles Steinkuehler
>>  wrote:
>>> The A and B Axis has no
>>> dependency on the rotation of the base of the robot arm (joint-0).
>>>
>>> Is this the expected behavior?
>> I don't know.
>>
>> I did notice that the C axis value changes when you rotate the base.
>>
>> Have you seen 
>> http://linuxcnc.org/docs/devel/html/motion/5-axis-kinematics.html
>> ?
> Thanks Andy, somehow I missed that document.  I'd gathered most of the
> info from reading through some of the 5-axis kinematics code, but it
> still doesn't really address my problem.  I think the closest it comes
> is a couple of places where it mentions "These relationships are
> typically used in the CAM post-processor to convert the tool
> orientation vectors to rotation angles".  To me that implies the CAM
> needs to have knowledge about the machine and account for the
> kinematics, but it seems like it's far better to do this on the
> machine side (where all the kinematics and dimensions are known).
>
> Perhaps a different way of asking my question:
>
> Given two types of 5-axis machine, one with A and B pivots on the
> spindle,
for the discussion, some vocab :-)
this is 'knucklehead'  like a wrist
>   and one with A and B pivots on the table,
this is a 'trunnion' config
> would identical
> gcode be expected to produce identical results on these two machines?
i dont think so, but that can be proven if we get two such machines 
together with a single part to execute
really, wether the same gcode or different... it doesnt affect the rest 
of this thought
>
> On the machine with the pivot on the spindle, operation seems
> straight-forward: Set the A and B angles, then move around in XYZ to
> machine your part.

> On the machine that pivots the table, however, after setting A and B,
> if you move around in XY, the Z axis will need to be coordinated with
> the part position (since the part is now tilted, moving in X and Y
> also affects the effective Z position).
>
> So is this difference handled in the kinematics,
(i think) the kins have to handle the difference
'handle' meaning the relations of the joints for machine motion is in 
the kins ( which is a description of the joint relationships )

  in the 'knucklehead' case, the tool axis ( line thru the cutter center 
) is hypothetical ( aint up/down left right inout xyz ish )

  in the 'trunnion' case the tool axis is simple cartesian and the 
workpiece attitude can be aeroplaney pitch yawed

will AXIS produce the correct visual given the correct kins? dunno, but 
it can be tested, but (i think) AXIS is not a proofing tool

will a vismach animation follow the correct kins?
   hmm i DO think so, given that vismach needs a lot of the relations 
that the kins would contain
   (also I've modeled a few multi axis systems in vismach )

will a CAM system produce the ( or 'a' ) good path given the _same_ 
kins, well (i think) its broke if it dont

and, the trunnion is not always just 'posed', often its dynamic.

(i think) the CAM has to know the same set of kins and react to corner 
cases and two-answer problems the same way

it only works if both the control and path generator have the same idea 
how to get to grandmas house
it only works if both the control and path generator have the same kins

a control and cam system is usually a marriage,
( doesnt Siemens own NX now? hehehe )
>   or is it expected to
> be handled by post-processing in CAM?
just my 2c
tomp tjtr33


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Re: [Emc-users] linuxcnc on raspberry pi 3

2017-02-21 Thread TJoseph Powderly
Abdul hello
we do not think the image you talk of is linuxcnc
it it different control system that we do not use
it is 'grbl'
please read the documents on the protroneer websites
like here
http://wiki.protoneer.co.nz/Raspberry_Pi_CNC_-_Quick_Start_Guide
where it states
"""

  * Raspberry Pi systems
  * Arduino Hardware / Serial Interfaces
  * Basic computer skills
  * GRBL g-code interpreter


"""
i do NOT see linuxcnc mentioned anywhere on thier site
only you add that word
we do not use grbl and cannot advise you how to use it or images that 
supply it

sorry but the world is complex and computers are picky
you have to know the question to understand the answer .

'42'

tomp tjtr33
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Re: [Emc-users] linuxcnc on udoo x86 / udoo x86 ultra was linuxcnc on raspberry pi 3

2017-02-20 Thread TJoseph Powderly
Thanks Erik
my beaglebone, qubie and orangePiPlus2e cant do graphics like the video 
you posted
( heck my dm510 cant do it either )
All of those were candidates for linuxcnc but are now just bookshelf 
knickknacks.
the video doesnt prove that an rt kernel linuxcnc image would run that 
well, but hope springs eternal.
I'd think that ethernet mesa cards might be used as well as the weirdo 
pcie cable extension thingy.
Please keep us posted on the Udoo and any experiences with linuxcnc on it
tomp tjtr33

On 02/20/17 18:09, Erik Christiansen wrote:
--snip-

> Have look at
> this:
>
> https://www.youtube.com/watch?v=Ibj0xOj42VA
>
> Erik
> (Fingers crossed that there are no more gremlins in the Udoo pie.)
>


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Re: [Emc-users] [OT] Wife is good to go

2017-02-19 Thread TJoseph Powderly
gene, i dunno if this can help
last nite i installed a 'fall detector' on wife's android phone
it uses the accelerometers to detect a sudden change, then looks for a 
period of no motion
( thats how they define a fall to unconcioussness )
then it makes a LOT of noise and calls a given cell phone
i'm still looking into varoius code sources,
but this just works

https://www.youtube.com/watch?v=U7aKZyiySYg


oh you can trigger manually by shaking and laying it down :-)

i was looking into a 'honey come here' pendant for each of us
press one, other buzzes
and came across this fall detector idea

lotsa uni's in your area doing research on same

regards
Tomp tjtr33






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Re: [Emc-users] M. P. Jones has deal on manual pulse generator

2017-02-18 Thread TJoseph Powderly
Gene & missus
hope you are well
the important things in life are the people we love
tomp & raem chiangmai


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Re: [Emc-users] another (possibly silly) EDM question

2017-02-14 Thread TJoseph Powderly

Hi Ralph
On 02/14/17 23:13, Ralph Stirling wrote:
> Thanks, Tom.  Since the 3d printed metal part is made from
> sintered powder, I would think it would have a lot of little
> points for the EDM to work on.  The question is whether it
> would smooth them, or merely erode surface particles to
> reveal new particles, leaving the same finish roughness.
> Hypothetical at present, as I don't have access to either
> a metal 3d printer or an EDM machine yet :-).
well edm would expose the granularity of the sintered material
it will not be smoother than the parent material (in general,  edm does 
not smear ;-)
example materials , honeycomb used in wings, and metal foam
I think this will be true of any noncontact subtractive machining
To smooth such a part may require adding material or contacting the material
> I am on the staff of the School of Engineering at Walla Walla
> University.  My time is split between laboratory development
> (designing, building, and installing equipment and working
> with faculty on lab curriculum), and teaching (Manufacturing
> Systems and Intro to EE CAD at present).  I am an EE who
> has been playing at ME for the last 18 years or so.
sounds like a sweet job, i bet you love it
i was an industrial teacher and it was great

my bro taught a course for cad students on manufacturing processes,
his responsibility was to teach how drawn things get made, and show how 
that really influences design
( or how some drawn things are not possible to make, or are really 
expensive to make.
   the disjunction of cad and manufacturing, why round parts are cheaper 
and deeper holes more expensive )

re: walla walla ...
http://al007italia.blogspot.com/2006/12/deck-us-all-with-boston-charlie.html

> -- Ralph
> 
tomp tjtr33

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Re: [Emc-users] another (possibly silly) EDM question

2017-02-13 Thread TJoseph Powderly


On 02/14/17 09:04, Ralph Stirling wrote:
> For you EDM experts out there:  How well would it
> work to do sinker EDM with a 3D printed metal part?
at first i thought you meant a 3D printed electrode...
thats been tried, there are papers but after a couple years have passed,
i hear no adoption of the idea ( printing graphite, printing copper )
> In other words, have a part printed to "near net shape",
> and use a machined (graphite or copper) electrode and
> EDM to take off just enough material to get it to the final
> shape with a smoother surface finish.
hmm... hurdle one, the 3D printer person has to be able to produce and 
electrode
usuially that involves miling/turning and maybe grinding
the surface of the electrode is smoother than the resulting edm surface
but not a lot smoother
look at edm surface finish charts, like VDI 20 to 10
https://www.flickr.com/photos/colorgroup/20716534781
https://www.flickr.com/photos/60055955@N06/16652242101

often the work gets 'scuffed' before edm-ing (esp if polished or plated )

> Am I even correct
> that EDM would give a better finish than the raw SLS
> surface?
afaik edm can do finer than SLS ( and rougher too ;-)
see the vdi charts above
> I've seen titanium parts that were CNC machined
> smooth after 3d printing (I think using electron beam
> melting process), but I'm wondering about using EDM
> instead of CNC machining for the finishing step.
edm is less efficient on already smooth surfaces
since it works on the principle of sparking to the closest point,
it has problems when it cant find the closest point because _all_ points 
appear the same distance.
this is called ( cant see the mountains ;-)

thats what happens when the work is shiny smooth
it can be done but presents a control problem in the classic voltage 
drop gap-width controller.
poor gap-width controls begin to hammer the work

work has been done with a type of ecm and salt baths to super finish 
large flat-ish surfaces
but for highly contoured cavities ( say a molex din connector ) very 
accurate electrodes and time are required to edm finish

my advice: stop edming as soon as possible and hand polish it!
keep those old mold makers and polisher in work.
nudge nudge wink wink

> Thanks,
> -- Ralph
> -
Ralph what do you do at WallaWallaU ? ( sorry it reminds me of a 
Rocky line :-)

tomp


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Re: [Emc-users] how to test output pins?

2017-02-13 Thread TJoseph Powderly
Hello, you can look at
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Parallel_Port_Tester

There is a version in the first linuxcnc screen (aka the config picker)

If you use any of these, check the address and if different, make copies 
and edit

These configs set the port simply as type 'output', but you can edit 
such features into your custom version

I have versions for 0xd030 and 0xd010

I recently found a new parport card's 3.3V outputs were not driving my 
5V stepper amp
because
an opto-coupler was used to level shift, and this added a delay by 
rounding the rising edge of the step signal
the delay was enough to eliminate the step length!

tomp tjtr33


On 02/13/17 21:26, Valerio Bellizzomi wrote:
> Thanks Todd, which parallel port test program should I use to toggle the
> output pins ?
>
>
> Thanks,
> Valerio
>
>


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Re: [Emc-users] EDM Small Hole Drilling

2017-02-12 Thread TJoseph Powderly
good point
i was an applications engineer
and i used that trick
sometimes you have to think well tho

(it dont always work like you think)

i always akin it to 'smoke goes up the chimney'
and
'dont blow down the chimney'

often the heat rise will aid the upwards flow and the swarf contained in 
the fluid
sometimes there's just too much stuff clogging the chimney ( the space 
between the tool and the cavity)
and sometimes the dirt is formed too deep for natural convection to clean
so
use flush, use jump, use ultrasonic vibration to loosen and keep the 
dirt in suspension
sometimes thicker oils sometimes thinner

sometimes upside down is good,
did you know the hydrogen gas bubbles would rise into the now inverted 
cavity?
gues what hapens when you spark into hydrogen ;-)
(oil is a hydrocarbon, the electrical energy _cracks_ it,  the carbon 
(you see 'dirt') and the hydrogen (you see smoke )

one method is not suitable to all cuts

so, form a picture of whats happening, test that picture every day
tomp tjtr33

On 02/12/17 11:43, Ralph Stirling wrote:
> I've got a question for you, TomP.  Why aren't sinker edm systems operated in 
> an inverted fashion, with the work facing down and the electrode underneath 
> facing upward?  I would think gravity could then help clear debris out of the 
> hole.
>
> -- Ralph
>
> On Feb 11, 2017 2:35 AM, TJoseph Powderly <tjt...@gmail.com> wrote:
>
>
> On 02/11/17 17:15, Andy Pugh wrote:
>>> On 10 Feb 2017, at 22:42, Jim Craig <jimcraig5...@windstream.net> wrote:
>>>
>>> Seriously though, lasers are expensive. I actually considered lasers
>>> first and went back to a regular spindle.
>> Also, going back to something else mentioned here, ECM might work. It might 
>> be especially effective if the geometry allows several holes to be made at 
>> the same time.
> true, less burr also
> less volts, more amps
> kind of like de-plating
> use carbide tube ( you can get a round hole by rotating or using carbide
> tubes ---old skool rule )
> a jig plate could do several at once. so the precision can be quite high
> still requires gap-width controller
> tomp
>
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Re: [Emc-users] EDM Small Hole Drilling

2017-02-11 Thread TJoseph Powderly
thats hot! 1mm dia.
tomp

On 02/12/17 04:52, Ken Strauss wrote:
> A local shop uses the larger version of these to deburr holes drilled in
> tubing. They claim to be usable in 0.040 holes and there is a Swiss company
> that I can't recall the name of that makes really small ones.
>
> http://www.ezburr.com/products/micro_series.php
>


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Re: [Emc-users] EDM Small Hole Drilling

2017-02-11 Thread TJoseph Powderly
Jim hello
again let me stress the word 'scale'
most google hits will claim edm has 'no burr'
thats a damn-lie (tm) invented by sales-people
i can feel it with my finger tip
IF it was done fast on a cheap machine
so there is a sliding scale of burr height from nanometers to tens of 
microns

the burr height is related to current at entry/exit (not solely 
dependant, bit its a biggie in the picture)
so you can get less burr if you reduce the power at entry and exit

http://bit.ly/2l6hvkx

the url shows edm hole burrs, it uses SEM photos ( scale again :-)

my discussion before was cheap taiwanes hopops
if you use an sophisticated(read expensive) machine
( say sarix or sodick or hitachi )
you will get control over the entry and exit power
and hopefully control over the control method at exit

changing from gap control to feed control at exit helps
because
when you exit the hole, there aint no gap, theres nothing in front of 
the tool tip
at that time the gap width control fails and the control begins to bang 
into that last tiny bit of stock hanging on the edge of the cave exit
and you get some nasty micro short circuits and some scraggy exit edges

if the control system is bad enuf, you actually push the remaining stock 
out!

again, its magnitude/scale,
so take a sample part to a jockey (aka applications engineer) and see 
what result you get
thats a good feasibility/reality test



On 02/12/17 01:27, Jim Craig wrote:
> On 2/10/2017 9:01 PM, TJoseph Powderly wrote:
>>> The reason I am contemplating the small hole EDM process is three fold.
>>> First it is difficult to drill these tiny holes in stainless and the
>>> drill bits frequently break. Secondly the back side of the hole needs to
>>> be burr free but is difficult to get to with conventional tools.
>> scale again... 'burr free'
>> well edm produces a burr, its small a few thou to 10 thou depending on
>> energy at breakthru and the system ability to control position well
>> ( hammering thru with bang bang control has larger burr )
>> to get almost no burr, use a sacrificial plate and burn thru the SS and
>> into the sacrifice
> I will have to reconsider if it does not make a burr free hole without a
> backer. I was under the impression it did. I guess what I was reading
> was with a backer or a stack of parts. I am not sure if the client would
> consider a 10thou burr acceptable.
10thou is large and the size can be controlled at the expense of time
( small burr needs small current. small current = larger time )
Afaik there will always be some burr, but i'm talking tiny.
> This is a spherical part where we are drilling through the spherical
> shell into the hollow center. Some holes are off center again benefiting
> from the EDM process.
yes drilling off center on a ball is something the hole drill edm can do
it requires a bit of control work , its like riding a horse down hill on 
gravel
a lot of this is the driver/jockey controlling the machine, picking the 
right adjustments and having a good machine.
> We could possibly have fluid (water) in the core of the sphere would
> that help reduce the burr?
yes it will help, drilling from wet to dry will aggravate it
so 'help' is what it will do, it will not 'fix' the exit problem

> Snip
>> sorry i gets carried away with edm stuff
>> tomp tjtr33
> No reason to apologize. You have provided lots of good information here.
>
> Thanks a bunch,
>
> Jim
>
thank you
tomp tjtr33
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Re: [Emc-users] EDM Small Hole Drilling

2017-02-11 Thread TJoseph Powderly


On 02/11/17 17:15, Andy Pugh wrote:
>
>> On 10 Feb 2017, at 22:42, Jim Craig  wrote:
>>
>> Seriously though, lasers are expensive. I actually considered lasers
>> first and went back to a regular spindle.
> Also, going back to something else mentioned here, ECM might work. It might 
> be especially effective if the geometry allows several holes to be made at 
> the same time.
true, less burr also
less volts, more amps
kind of like de-plating
use carbide tube ( you can get a round hole by rotating or using carbide 
tubes ---old skool rule )
a jig plate could do several at once. so the precision can be quite high
still requires gap-width controller
tomp

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Re: [Emc-users] EDM Small Hole Drilling

2017-02-10 Thread TJoseph Powderly

i was surprised how much off the shelf stuff exists
its not impossible to reverse engineer the connections
but a working experience is handy
maybe you know an edm service engineer cum hacker?
the mechanical stuff ( motors spindles pumps ) are too cheap to mess 
with diy
the guides wont be a diy project, drilling holes thru ruby & ceramic 
aint easy )

save up for 1 1kva trafo!
tomp tjtr33
( i _think_ these teeny jpgs will pass the size restrictions on this list )

On 02/11/17 05:58, Comcast wrote:

The laser drilling was the first thing I thought of too.  Pratt & Whitney uses 
this process to drill similar size holes in the turbine blades.  The keep the slag 
out of the holes they fill the interior of the blade with epoxy:  Upon burn through 
the epoxy virtually explodes, blowing and slag or burr-like recast out of the hole.

N. Christopher




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Re: [Emc-users] EDM Small Hole Drilling

2017-02-10 Thread TJoseph Powderly
wow, i gotta look into that epoxy idea,
we just pressurized the cavity with water
and that was a complex jig already!
thx tomp

On 02/11/17 05:58, Comcast wrote:
> The laser drilling was the first thing I thought of too.  Pratt & Whitney 
> uses this process to drill similar size holes in the turbine blades.  The 
> keep the slag out of the holes they fill the interior of the blade with 
> epoxy:  Upon burn through the epoxy virtually explodes, blowing and slag or 
> burr-like recast out of the hole.
>
> N. Christopher
>
>> On Feb 10, 2017, at 5:16 PM, andy pugh  wrote:
>>
>>> On 10 February 2017 at 21:59, Jim Craig  wrote:
>>> The more I think about the actual process and needs of the machine I am
>>> thinking that a small hole EDM drilling head would be better for this
>>> application.
>>
>> Maybe consider lasers (and sharks?) too:
>> https://www.oxfordlasers.com/laser-micromachining/applications/fuel-injector-production/
>>
>>
>> -- 
>> atp
>> "A motorcycle is a bicycle with a pandemonium attachment and is
>> designed for the especial use of mechanical geniuses, daredevils and
>> lunatics."
>> — George Fitch, Atlanta Constitution Newspaper, 1916
>>
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Re: [Emc-users] EDM Small Hole Drilling

2017-02-10 Thread TJoseph Powderly
re: other technogies...
if you can drill it, it'll be faster
a good applications engineer from a good company
can read your specs and give you tools and tooling that will do the job
it may be expensive but its pretty guaranteed and even proven on your 
test parts
tomp

On 02/11/17 05:42, Jim Craig wrote:
> On 2/10/2017 4:16 PM, andy pugh wrote:
>> On 10 February 2017 at 21:59, Jim Craig  wrote:
>>> The more I think about the actual process and needs of the machine I am
>>> thinking that a small hole EDM drilling head would be better for this
>>> application.
>> Maybe consider lasers (and sharks?) too:
>> https://www.oxfordlasers.com/laser-micromachining/applications/fuel-injector-production/
>>
>>
> But that would cost 1 million dollars.
>
> Seriously though, lasers are expensive. I actually considered lasers
> first and went back to a regular spindle.
>
> Thanks Andy,
>
> Jim
>
>
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Re: [Emc-users] EDM Small Hole Drilling

2017-02-10 Thread TJoseph Powderly
Jim hello
I have worked with a lot of taiwanese hole drills ( hopops for short )

On 02/11/17 04:59, Jim Craig wrote:
> I am working on a project at work where we are designing a new CNC
> machine for a particular application. Up to this point I have been
> planning on using a standard machine spindle.
>
> The more I think about the actual process and needs of the machine I am
> thinking that a small hole EDM drilling head would be better for this
> application.
>
> The application required drilling small 0.050" diameter holes through
> .135" thick stainless steel. The back side of these holes are in an
> annular space that cannot be easily reached for deburring.
ok scale & magnitude in this conversation...
  you say 'small hole' and...
.050 is almost optimum size ( 1mm dia is pretty the optimum for the 
technology)
2mm is difficult, .006 is difficult ( for std cheapo (<20k$) hopops )
> The reason I am contemplating the small hole EDM process is three fold.
> First it is difficult to drill these tiny holes in stainless and the
> drill bits frequently break. Secondly the back side of the hole needs to
> be burr free but is difficult to get to with conventional tools.
scale again... 'burr free'
well edm produces a burr, its small a few thou to 10 thou depending on
energy at breakthru and the system ability to control position well
( hammering thru with bang bang control has larger burr )
to get almost no burr, use a sacrificial plate and burn thru the SS and 
into the sacrifice

>   Third
> the machine could be lighter and simpler if I use EDM vs a standard
> milling head.
the time to burn .050 hole thru 0.1" SS should be near 45seconds
go to a shop to verify, or take a test pc to a sales house

>
> So my questions are as follows. What type of power supply would I need
> to use for doing small hole EDM drilling? Can I use a tig welder as the
> power supply and control pulsing with LinuxCNC driving an external IGBT?
igbt's are not popular/common in commerical units
igbt's have not been driven on and off as clean as individual fets, esp 
the irf series
(its the clean off drop that marks a low wear unit)
irf 540s and up are very very common ( theres a high-v spike due to 
overall system wiring,
things like wire wrapped resistors, cable length etc add capacitance and 
inductance)

the power should be , in _very_ general description...
100V open volts, 0-32 amperes supply in short circuit
the polarity will be negative to tool and the tool will be brass tubing
the on time will be 10 to 50uS and duty cycle 1-50%

since linuxcnc's ability to do stuff quick is limited by thread speed
you wont get better than your fastest thread as a time quantum for spark 
timing
( a 1ms thread period gets you 1ms time divisions, or 2ms with any 
jitter overages )
so plan on a pic ( very common ) or an arduino (fairly easy to hack)

the medium will be tap water, deionizing is not a _large_ benefit
submersing the part will aid in breakthru and less burrs

oh, a 'soft start' at lower current for a couple seconds will reduce 
entry burr.

the tool will be a tube with a .01ish hole thru it
a special feed thru chuck with a rubber seal is used
the rubber seal is pressed by water pressure onto a flange in the 
albrecht like chuck
the water pressure is 900-1500psi but delivered by a simple air driven pump
the pump has a large bore (4-8") and the piston is on a rod that goes 
thru both ends of chamber
this piston cycles back and forth thru the pressure chamber, driven by 
shop air (8bar+)
the cycle is controlled with 2 prox switches sensing a ferrous slug on 
the piston.
the ENDs of this shaft enter small bores at each end of the large bore 
and the ENDs are pistons themselves!
the small ends are sealed for the small bore and in the small bore is water!
this size ratio is the pressure amplification, 100psi in, 1500 psi out, 
stupid and simple
VERY low volume though, we only have a .01 hole to pass thru.
the system is controlled by the 2 prox swxs, so it the piston just 
cycles back and forth,
pumping tiny spoonfuls of hipressure water thru the tiny hole. a leading 
air pressure unit
(drying and pressure regulator) will controll the maximum value, a gauge 
on output leg
can show operator the value. it goes chug chug chug all day long.

After this high pressure water makes it thru all the plumbing restrictions
it isn't strong enuf to do more than dimple your fingertip. any line break
will immediately reduce to water at less that shop air pressure.

oh the thru hole water is neccesary, and as soon as you break thru, its 
LOST.
so the back up plate helps a lot, the submerging helps to a lesser degree

  
Could I use the Mesa THC to control gap of the electrode to the workpiece?

i got a mesa thc but used a hal component and a window comparator myself 
for sink edm
i did not build a hopop supply yet. got lotsa parts tho

the windo comp used a preliminary voltage divider to reduce 100V to 5V
the windo comp had 2 setpoints ( pot adjusted)
the 

Re: [Emc-users] OT: Need some guidance on high temp/pressure water circuit

2017-02-09 Thread TJoseph Powderly
use of water vs electrical heaters to _stabilize_ molding temperatures.
http://www.ptonline.com/cdn/cms/uploadedFiles/MoldTemperatureControlWhitePaper.pdf
tomp

On 02/09/17 14:34, Roland Jollivet wrote:
> Probably more OT, but is this a very special mould? Or process?
>
>


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Re: [Emc-users] OT: Need some guidance on high temp/pressure water circuit

2017-02-09 Thread TJoseph Powderly
sanity check:can this really be done?
what is the mass to be heated/cooled?
what is the hot target?
what is the cold target?
what is the time desired for heating?
what is the time desired for cooling?

Rolands comments are good to note.

can the mass really be thermally changed as fast as you desire?

tomp tjtr33

On 02/09/17 14:34, Roland Jollivet wrote:
> Probably more OT, but is this a very special mould? Or process?
>


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[Emc-users] linuxcnc on udoo x86 / udoo x86 ultra was linuxcnc on raspberry pi 3

2017-02-08 Thread TJoseph Powderly
there are some x86 models,
and one, the udoo x86 ultra, has an embedded arduino 101 (maybe a handy 
slave)

there are also arm models

but this x86 looks interesting forlinuxcnc

the "udoo x86 ultra"   tadaaa

it came out of kickstarter
http://mouser.com/new/udoo/udoo-x86/
https://www.slant.co/topics/1629/viewpoints/26/~single-board-computers~udoo-x86

i do not know how to research wether the udoo x86 ultra would be good as 
alinuxcnc controller
i suppose i'd have get one and boot a linuxcnc image and have ethernet 
mesa cards to see if it was useful
could it (pretty much) just work out of the box? ( hehehe how's 'pretty 
much' for a quantifier ;-)

i say id try mesa ethernet cards as thats the only useful ports i saw

but i've read this also
"Indeed, any UDOO X86 will support PCI express on M2 slot (2 lanes) from 
now on."
i have no idea what that means, just that it seems to mention PCIe
and
the M2 slot seems to be discussed here
https://en.wikipedia.org/wiki/M.2
but it doesnt look like any PCIe that i have used
so it looks like some weird adapter lets you use PCIe cards
http://www.hwtools.net/ExtenderBoard/P14S-P14F.html

looks possible, but a 300$ gamble

andyp was looking at an udoo, from messages back in 2014,
so i suspect it was an arm system, tho it was referred to as 'the udoo' 
( life was simpler then ;-)
the x86 part might allow a standard image to run on it ( i edited this 
down from 'should' )

tomp tjtr33

On 02/08/17 23:26, Gene Heskett wrote:
> On Wednesday 08 February 2017 10:49:02 W. Martinjak wrote:
>
>> On 2017-02-08 15:45, Gene Heskett wrote:
>>> Thats not an armhf, Andy, thats intels latest tiny & low power
>>> consumption board, but it speaks x86, not armhf.
>> He meant this one:
>>
>> http://shop.udoo.org/usa/quad-dual/udoo-quad.html
>


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Re: [Emc-users] (corrected) AT KL8060 driver

2017-02-05 Thread TJoseph Powderly
haha scott towel
wrong brand tho...

https://www.youtube.com/watch?v=4Ubtg3wnvQc

tomp tjtr33

On 02/05/17 16:44, Gene Heskett wrote:
> On Saturday 04 February 2017 17:09:34 Gene Heskett wrote:
>
> Driver part number corrected.
>
>> Greetings all;
>>
>> Does anyone have any experience with that Automation Tech driver?
>>
>> I am somewhat (ok a bunch) less than impressed with this DM860 thats
>> driving that 1600 oz nema 34 on the Z screw.  Its current stepping
>> profile by the step is horrible and the steps can even be counted when
>> running slow, and it sounds like its skipping every 8th or 16th step,
>> but its not skipping it on the scope.
>>
>> I'd bought the KL8060 thinking of using it on the X motor, but its
>> big enough to run this Z motor, and I am wondering if its noticeably
>> smoother at microstepping than this DM860 is?
>>
>> Can anyone testify?
>>
>> Before I go to the trouble of unbolting the DM860 & swapping it out,
>> which is a certified PITA. Its on a subplate inside this box and the
>> screws are well nigh unreachable to reinstall.
>>
>> And now that the noise is tolerable, I might buy another kL8060, and
>> put that 60 volt switching supply back in to run the x.
>>
> I did get the chuck clamping assembly done and installed. I believe it
> can survive anything that VFD can throw at it. I did find that Polish
> made chuck is not so true when backing into a bored hole that big, 5
> thou or so non-concentric. But I've not loosened the bolts to see if it
> has some poor mans set-true slop yet.  I need to figure out a shield for
> the slot in the crossfeed above the ball screw, its exposed by the time
> the crossfeed has moved inward 2" from the outer limit. I'm putting a
> scott towel over it ATM, but thats far from a daily fix IMO.
>
>> Thanks everybody.
> Cheers, Gene Heskett

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Re: [Emc-users] Does anybody know about this interpolated tapping ?

2017-02-03 Thread TJoseph Powderly
very nice idea, bore & thread with 1 tool
but i _thought_
"this puts a lot of work on the lead edge, and the circular 
interpolation avoided that"
but then i read that it was meant for non-ferrous materials
so no heart attack
until
i read the price... 62Euro!?

well its a lot more than the old draps and dreamers
http://www.dreamertool.com/drapreg.html

tomp tjtr33

On 02/03/17 18:53, Bengt Sjölund wrote:
> https://shop.vhf.de/catalogs/Thread-cutters-W_GW.htm
>
> https://shop.vhf.de/articleGroups/Circular-thread-cutters-W_GW_BGF.htm
>
> I am very fond of the one above = 2 tools in 1
>
> Cheers
> Bengt
>

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Re: [Emc-users] Does anybody know about this interpolated tapping ?

2017-02-03 Thread TJoseph Powderly
i've not done it with linuxcnc
we did it a lot in heidenhain tnc controls for sink edm

google thread milling

you need a tool with the correct pitch on smaller shank than the drilled 
hole

how the metal is attacked can be:
  goto to the bottom before interpolating an expanding circle
or
  helix down at the desired radius

multiple passes can do roughing and finishing

Linuxcnc has the primitives to do this
this is an application not a special motion ( afaict )

the problem in sink edm was that the leading edge of the tool wore out 
quickly if the tapping was plunged
versus
if the path was interpolated (expanded laterally from center),
  then the tool wear was evenly distributed over the tool face

i'd think the same advantages occur in chip machining

also a larger cutting interface occurs ( not a single leading point )

it was a real advantage when making large diameter threaded plugs ( > 
100mm dia )
and its really simple program

tomp tjtr33



On 02/03/17 14:59, Valerio Bellizzomi wrote:
> http://www.infodelta.it/foto/film/filettatura%20interpolata.mp4
>
>
>
>
>
>
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