Re: [Emc-users] Brushless Servo Selection?

[gene heskett]

On Sunday, June 17, 2012 02:01:11 PM Dave did opine:

> On 6/16/2012 2:54 PM, andy pugh wrote:
> > On 16 June 2012 18:48, Dave  wrote:
>  I suspect real estate was also to be a holdout, hell, nobody around
>  here
> >> 
> >> has a clue what a hectar is, not even me.<<
> >> 
> >> I think that Hectars are english also, as well as fathoms, etc.
> > 
> > No, the Hectare is metric.
> > 
> > An Are is an area 1km x 1km. A Hectare is 1/100 of that. So, a hectare
> > is the area of a square 100m on a side.
> > (1 million square metres to the Are, 10,000m^2 to the hectare.)
> > 
>  >>A metric unit of square measure, equal to 100 ares (2.471 acres or
> 
> 10,000 square meters).
> Well obviously I didn't know what a Hectare was.
> Ironically my house lot is very close to a Hectare at 2.4 acres (in
> "flyover country"), so now I know I can relate to a Hectare.  :-)

You've got lots of room for more roofing then.  I'm about out. :(
> 
> Dave
> 
> 
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Cheers, Gene
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Re: [Emc-users] quick boot

[Stuart Stevenson]

Agreed
On Jun 17, 2012 12:05 AM, "Przemek Klosowski" 
wrote:

> On Thu, Jun 14, 2012 at 8:56 PM, Stuart Stevenson 
> wrote:
>
> > I don't understand why the controller would be robust enough for a
> machine
> > tool and not for a car.
>
> One reason might be the temperature ranges. A machine shop should stay
> between 5°C and 30°C
> while automotive temperature range is from -40°C to +125°C.
>
>
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Re: [Emc-users] 5i25 detected, but not the 7i77 yet

[Peter C. Wallace]

SNIP-
> [14170.506738] hm2/hm2_5i25.0: config.num_encoders=6, but only 2 are
> available, not loading driver
> [14170.506740] hm2/hm2_5i25.0: failed to parse Module Descriptor 2
> [14170.506745] hm2_5i25.0: board fails HM2 registration
SNIP


Note that you need to cycle the motherboard power to load new firmware

Peter Wallace
Mesa Electronics



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Re: [Emc-users] 5i25 detected, but not the 7i77 yet

[Maximilian H]

Hello Andy, Hello Peter, Hello List,

I flashed the 7i77x2.bit firmware to the 5i25 using the mesaflash
utility found in the 5i25.zip file on the mesanet website.

Then I tried to load the hm2_pci hal module again without success with
the loadrt line that you suggested.

But so far I have not gotten the 5i25+7i77 to work.

I used the 7i77x2 firmware because I have not seen any firmware with
just one 7i77. All details below.

Could you please point me in the right direction on where to look for my
problem?

BR.
Max.


This is what I did:

In the first terminal:
$ halrun
halcmd: loadrt hostmot2

And then the second terminal:
$ echo 5 > /proc/rtapi/debug

In the first terminal again:
halcmd: loadrt hm2_pci config="num_encoders=6 sserial_port_0=000xxx"
insmod: error inserting
'/usr/realtime-2.6.32-122-rtai/modules/linuxcnc/hm2_pci.ko': -1 Invalid
parameters
:2: exit value: 1
:2: insmod failed, returned -1
See the output of 'dmesg' for more information.

output of dmesg:
[12406.135801] RTAI[hal]: <3.8.1> mounted over IPIPE-NOTHREADS 2.6-03.
[12406.135803] RTAI[hal]: compiled with gcc version 4.4.3 (Ubuntu
4.4.3-4ubuntu5) .
[12406.135827] RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE (INTERNAL
IRQs DISPATCHED), ISOL_CPUS_MASK: 0).
[12406.135829] PIPELINE layers:
[12406.135831] fdb4ee20 9ac15d93 RTAI 200
[12406.135833] c085cb20 0 Linux 100
[12406.151470] RTAI[malloc]: global heap size = 2097152 bytes, .
[12406.151579] RTAI[sched]: IMMEDIATE, MP, USER/KERNEL SPACE: , kstacks pool size = 524288 bytes.
[12406.151583] RTAI[sched]: hard timer type/freq = APIC/12503458(Hz);
default timing: periodic; linear timed lists.
[12406.151586] RTAI[sched]: Linux timer freq = 250 (Hz), TimeBase freq =
2600554000 hz.
[12406.151588] RTAI[sched]: timer setup = 999 ns, resched latency = 2943 ns.
[12406.151662] RTAI[usi]: enabled.
[12406.185685] RTAI[math]: loaded.
[12442.092622] hm2: loading Mesa HostMot2 driver version 0.15
[12442.092626] HAL: initializing component 'hostmot2'
[12442.092628] RTAPI: initing module HAL_hostmot2
[12442.092632] RTAPI: module 'HAL_hostmot2' loaded, ID: 4
[12442.092635] HAL: component 'hostmot2' initialized, ID = 04
[12466.366504] hm2_pci: loading Mesa AnyIO HostMot2 driver version 0.7
[12466.366508] HAL: initializing component 'hm2_pci'
[12466.366511] RTAPI: initing module HAL_hm2_pci
[12466.366513] RTAPI: module 'HAL_hm2_pci' loaded, ID: 5
[12466.366517] HAL: component 'hm2_pci' initialized, ID = 05
[12466.366552] hm2_pci :03:01.0: PCI INT A -> GSI 16 (level, low) ->
IRQ 16
[12466.366555] hm2_pci: discovered 5i25 at :03:01.0
[12466.366655] hm2/hm2_5i25.0: parsing config string "num_encoders=6
sserial_port_0=000xxx"
[12466.30] hm2/hm2_5i25.0: final config:
[12466.32] hm2/hm2_5i25.0: num_encoders=6
[12466.34] hm2/hm2_5i25.0: num_resolvers=-1
[12466.35] hm2/hm2_5i25.0: num_pwmgens=-1
[12466.37] hm2/hm2_5i25.0: num_3pwmgens=-1
[12466.366670] hm2/hm2_5i25.0: sserial_port_0=000xxx00
[12466.366671] sserial_port_1=
[12466.366672] sserial_port_2=
[12466.366673] sserial_port_3=
[12466.366676] hm2/hm2_5i25.0: num_stepgens=-1
[12466.366678] hm2/hm2_5i25.0: enable_raw=0
[12466.366679] hm2/hm2_5i25.0: firmware=(NULL)
[12466.366683] HAL: creating parameter 'hm2_5i25.0.io_error'
[12466.366754] hm2/hm2_5i25.0: MD 1: 2x IOPort v0: accepted, using 2
[12466.366758] HAL: creating pin 'hm2_5i25.0.watchdog.has_bit'
[12466.366761] HAL: creating parameter 'hm2_5i25.0.watchdog.timeout_ns'
[12466.366764] HAL: exporting function 'hm2_5i25.0.pet_watchdog'
[12466.366766] HAL: creating parameter 'hm2_5i25.0.pet_watchdog.time'
[12466.366769] HAL: creating parameter 'hm2_5i25.0.pet_watchdog.tmax'
[12466.366772] hm2/hm2_5i25.0: MD 0: 1x Watchdog v0: accepted, using 1
[12466.366774] hm2/hm2_5i25.0: MD 1: 2x IOPort v0: ignored
[12466.366777] hm2/hm2_5i25.0: config.num_encoders=6, but only 2 are
available, not loading driver
[12466.366779] hm2/hm2_5i25.0: failed to parse Module Descriptor 2
[12466.366784] hm2_5i25.0: board fails HM2 registration
[12466.366793] hm2_pci :03:01.0: PCI INT A disabled
[12466.366801] hm2_pci: probe of :03:01.0 failed with error -22
[12466.366823] HAL: removing component 05
[12466.366826] RTAPI: module 5 exiting
[12466.366830] RTAPI: module 5 exited, name: 'HAL_hm2_pci'
[12466.366832] HAL: component 05 removed, name = 'hm2_pci'

---

Then after that I did exit halrun and did the flashing of the firmware

$ sudo ./mesaflash 7i77x2.bit write
PCI device 17 at bus/device/function 03/01/0
Vendor/Device/SSVendor/SSDevice: 2718/5125/2718/5125
Region 0: MEM 65536 bytes at febf
Checking cookie... OK
Identifing EEPROM... OK
  8Mb found
BootSector OK
Checking file 7i77x2.bit... OK
  File type: BIT file
  Design name: TopPCITargetHostMot2.ncd;UserID=0x
  Part name: 6slx9tqg144
 

Re: [Emc-users] Brushless Servo Selection?

[Dave]

On 6/16/2012 2:54 PM, andy pugh wrote:
> On 16 June 2012 18:48, Dave  wrote:
>
 I suspect real estate was also to be a holdout, hell, nobody around here
  
>> has a clue what a hectar is, not even me.<<
>>
>> I think that Hectars are english also, as well as fathoms, etc.
>>  
> No, the Hectare is metric.
>
> An Are is an area 1km x 1km. A Hectare is 1/100 of that. So, a hectare
> is the area of a square 100m on a side.
> (1 million square metres to the Are, 10,000m^2 to the hectare.)
>
>

 >>A metric unit of square measure, equal to 100 ares (2.471 acres or 
10,000 square meters).
Well obviously I didn't know what a Hectare was.
Ironically my house lot is very close to a Hectare at 2.4 acres (in 
"flyover country"), so now I know I can relate to a Hectare.  :-)

Dave

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Re: [Emc-users] making a new component

[lloyd wilson]

Found the problem:
  in the current build structure, first step needs to be

 linuxcnc-dev/scripts/rip-environment

  to setup the build environment

thanks all

-ldw


On 06/16/2012 10:28 PM, lloyd wilson wrote:
> Curious - I still have a previous source environment (emc2-dev), as well
> as a new environment
> (linuxcnc-dev). Running 'which comp' from new environment gives null
> response:
>
>  lloyd@lloyd-acer:~/linuxcnc-dev$ which comp
>  lloyd@lloyd-acer:~/linuxcnc-dev$
>
>running from old environment finds comp - in the new environment :
>
>lloyd@lloyd-acer:~/emc2-dev$ which comp
>/home/lloyd/linuxcnc-dev/bin/comp
>
> seems there is some environment variable out of alignment - and my *nix
> experience is at least a decade out of date
>
>
> On 06/16/2012 10:03 PM, Kirk Wallace wrote:
>> On Sat, 2012-06-16 at 19:22 -0400, lloyd wilson wrote:
>>> Thanks for the quick reply; all files are in the same directory, which
>>> I've tried placing in linuxcnc root and in the src directory; no change.
>>> The find* scripts exist&   are executable; find-modinc is the script that
>>> goes thud, even if run from the command line. Since this is a C program,
>>> not a comp, is that step needed in the make process?
>>>
>>> -ldw
>>>  From this link:
>> http://git.mah.priv.at/gitweb/vfs11-vfd.git/blob/master:/find-modinc
>>
>> it looks like it uses "which" to try to find "comp". if successful, it
>> sets the "bindir" shell variable, with other variables dependent on
>> "bindir".
>>
>> "which comp" at the command line should be equivalent, or "whereis
>> comp", or just "comp" to see if comp is found.
>>
>> I noticed here:
>> http://www.linuxcnc.org/index.php/english/component/kunena/?func=view&catid=10&id=18963
>>
>> that LinuxCNC 2.5 now has comp in the linuxcnc-dev package rather than
>> the older emc2-dev.
>> http://www.linuxcnc.org/docview/html/hal/comp.html
>>
>> It looks like you will need to get comp running first, so find-modinc
>> can find it.
>>
>>
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Re: [Emc-users] Brushless Servo Selection?

[andy pugh]

On 17 June 2012 09:09, Steve Blackmore  wrote:

> Pipe threads are Imperial Units - BSP (British Standard Pipe) and have a
> Whitworth thread form.

Whitworth thread has a 55 degree thread angle. This is better than a
60 degree angle, but harder to draw.
(Whitworth calculated that 55 degrees gave the best combination of
clamping force and self-locking)
Most of the world's thread standards compromise to make things easier
for the draughtsman and tool grinder.
BA threads are 47.5 degrees. I don't know why. However BA is
interesting as the sizes are mathematically derived on a series of
equations.
http://en.wikipedia.org/wiki/British_Association_screw_threads


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Re: [Emc-users] Brushless Servo Selection?

[Steve Blackmore]

On Sat, 16 Jun 2012 23:03:44 +0300, you wrote:

>2012/6/16 andy pugh :
>>
>> You are quite right, I don't know how I got that wrong.
>> Except that hecto and centi are _not_ prefixes in the SI system.
>>
>
>Could be, I do not know for sure...
>
>BTW the metric vs imperial systems and UK being somewhere inbetween
>(litres from metric system and miles from imperial), I just remembered
>one interesting moment from a metrology class:
>In whole mainland Europe screw threads are metric, pipe threads are in
>imperial units. Which does not make much of a sense to me, why would
>they be separated, but then professor mentioned that pipe threads in
>UK are not imperial (I _think_ that screw threads are imperial in
>UK)...
>So I think that pipe thread in UK has to be metric, which makes me
>think that English people are doing this on purpose :))

Pipe threads are Imperial Units - BSP (British Standard Pipe) and have a
Whitworth thread form.

Have a read up on Joseph Whitworth  - He displayed a machine in 1855
that could measure to an accuracy of one millionth of an inch. He was
also the guy who defined a standard thread 1841 to aid the speed of
manufacture. 

Steve Blackmore
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Re: [Emc-users] Workshop Servo tuning seminar

[Jeshua Lacock]

On Jun 16, 2012, at 10:35 PM, Jon Elson wrote:

>> I was hoping to go to the CNC Workshop to attend and video tape your seminar 
>> on servo tuning.
>> Do you know if there is a way I can attend this without paying the $150.00, 
>> I am only going to see you and nothing else.
>> Just thought I'd ask as all I want to do is attend the servo tuning seminar 
>> and can't spend $150.00 on just that.
>> 
> I can't do anything, but you need to email or call George Bulliss at 
> Village Press.  There is a
> Saturday-only admission that is cheaper.

Hi,

I would throw in $50 to see that. Let me know if that would be helpful.


Best.

Jeshua Lacock
Founder/Engineer
3DTOPO Incorporated

Phone: 208.462.4171


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