Re: [Emc-users] parallel ports configuration

[Gene Heskett]

On Tuesday 10 July 2018 20:13:27 yomin estiven jaramillo munera wrote:

> Hi guys, I need configure 2 parallel ports  PCI express (
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?WCH) for a application of 6
> axis. however I am having some problems with the recognition of
> parallel ports in Debian.
> Someone knows what can I do with that?
> I need that linuxcnc recognizes the 2 ports. but i must do a initial
> configuration from terminal.
> can you help me?

Does this machine have a std pci slot? If it does, a Mesa 5i25 card will 
give you a pair of parports, independent of the machines own parport, 
and do it with more i/o bandwidth than you'll get from adding another 
parport card. I have 2 machines setup with the 5i25, and both work well. 
A 4 axis G0704, which uses both ports and and a 7x12 lathe that so far 
is only using one of them. 

You can use 2 more or less std parport breakout boards, and I highly 
recommend the SainSmart boards for that as they have no signal 
distorting opto-isolators in any output. They do isolate the inputs 
however, which limits the speed of any spindle encoders involved unless 
the opto is snipped out of the circuit and bypassed in those two inputs. 
I am an old C.E.T., so thats easy for me to do.

I have no clue if Peter (mesanet) has a pci-express version of that card. 
You might ask, or an old off lease Dell usually has a pair of pci slots, 
and can be had for less than a 100 dollar bill from places like 
pcliquidater.com.

Another, more pricey way might be to use a 7i90HD and a trio of 7i42TA's, 
which are required to protect the 3 volt circuitry of the 7i90, which I 
am running a converted Sheldon 11x36 with, that gives you 72 gpio's and 
several choices of FPGA configs. So I am doing what needs to be done to 
run this lathe and still have around 25 gpio's I haven't used. This card 
can be driven from a parport, or from an SPI, which I am doing from a 
raspi 3b on that machine.

I hope this helps, yomin estiven jaramillo munera, where are you?

-- 
Cheers, Gene Heskett
--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] parallel ports configuration

[John Alexander Stewart]

does "lspci" show ports?

You may wish to "lspci > withports.txt" remove them (or, if on-board,
disable in BIOS) reboot, "lspci > noports.txt", and do a diff between the
two text files, to help see what the system thinks.

John.


On Tue, Jul 10, 2018 at 8:14 PM yomin estiven jaramillo munera <
yejm...@gmail.com> wrote:

> Hi guys, I need configure 2 parallel ports  PCI express (
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?WCH) for a application of 6 axis.
> however I am having some problems with the recognition of parallel ports in
> Debian.
> Someone knows what can I do with that?
> I need that linuxcnc recognizes the 2 ports. but i must do a initial
> configuration from terminal.
> can you help me?
>
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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[Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

Hi guys, I need configure 2 parallel ports  PCI express (
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?WCH) for a application of 6 axis.
however I am having some problems with the recognition of parallel ports in
Debian.
Someone knows what can I do with that?
I need that linuxcnc recognizes the 2 ports. but i must do a initial
configuration from terminal.
can you help me?
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Re: [Emc-users] OT: Question about steel for cold forming

[Leonardo Marsaglia]

Hello Dave.

The idea is to achieve a maximum hardness 25 HRc after cold forging with
heat treatment. Before the forging I would like the less hardness possible
of course.

These values are arbitrary and are subject to change, but to start the idea
is that.


2018-07-10 13:15 GMT-03:00 Dave Cole :

> So these need to be hardened after cold forging ?
>
> You want them to have a max 25 HRc after forging and prior to heat
> treatment?
>
> Dave
>
>
>
> On 7/10/2018 11:54 AM, Leonardo Marsaglia wrote:
>
>> Hello to all.
>>
>> I'm trying to figure out wich is the best material for making cold formed
>> bolts wich need to have 25 HRc of maximum hardness.
>>
>> I was thinking about using 1022 steel wich is suitable for cold forging
>> but
>> I'm afraid the hardness process will be much more complicated than just
>> quenching and tempering.
>>
>> Then I was thinking about 1045 steel but I'm not sure how good it would be
>> for the cold forging process.
>>
>> Do you have any hints or advices about this?
>>
>> Thank you as always!
>>
>> Leonardo.
>> 
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>
> 
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Re: [Emc-users] OT: Question about steel for cold forming

[Ed]

On 07/10/2018 10:54 AM, Leonardo Marsaglia wrote:

Hello to all.

I'm trying to figure out wich is the best material for making cold formed
bolts wich need to have 25 HRc of maximum hardness.

I was thinking about using 1022 steel wich is suitable for cold forging but
I'm afraid the hardness process will be much more complicated than just
quenching and tempering.



1022 steel will not harden using the ordinary methods, but it is nice to 
cold head.





Then I was thinking about 1045 steel but I'm not sure how good it would be
for the cold forging process.



1045 is much more useful for threaded screw use, cold heads well and 
hardens well.





Do you have any hints or advices about this?



How do you plan to thread them? Cut thread is more difficult chucking. 
Thread rolling is the standard procedure.





Thank you as always!

Leonardo.




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Re: [Emc-users] OT: Question about steel for cold forming

[Dave Cole]

So these need to be hardened after cold forging ?

You want them to have a max 25 HRc after forging and prior to heat treatment?

Dave


On 7/10/2018 11:54 AM, Leonardo Marsaglia wrote:

Hello to all.

I'm trying to figure out wich is the best material for making cold formed
bolts wich need to have 25 HRc of maximum hardness.

I was thinking about using 1022 steel wich is suitable for cold forging but
I'm afraid the hardness process will be much more complicated than just
quenching and tempering.

Then I was thinking about 1045 steel but I'm not sure how good it would be
for the cold forging process.

Do you have any hints or advices about this?

Thank you as always!

Leonardo.
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[Emc-users] OT: Question about steel for cold forming

[Leonardo Marsaglia]

Hello to all.

I'm trying to figure out wich is the best material for making cold formed
bolts wich need to have 25 HRc of maximum hardness.

I was thinking about using 1022 steel wich is suitable for cold forging but
I'm afraid the hardness process will be much more complicated than just
quenching and tempering.

Then I was thinking about 1045 steel but I'm not sure how good it would be
for the cold forging process.

Do you have any hints or advices about this?

Thank you as always!

Leonardo.
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Re: [Emc-users] brushless sewing machine motors

[Dave Cole]

Just run it off 220.
Or if not easily available, pickup a used 240 to 120 large control 
transformer and run it backwards.
They are not hard to find.   500 and 1000 va is a very common size.   
Check Ebay or surplus industrial/electrical deals near you.


Dave

On 7/9/2018 2:27 PM, Ralph Stirling wrote:

Sure enough!  I had been looking at a mix of 110 and 220v
motor/drives.  Now that you pointed that out, it looks like
none of the 400W under-$100 motors are 110.  There are
550W (3/4HP) motors for $120, and 750W (1HP) for $150.

Hmmm.

-- Ralph

From: John Bald [robotwiz...@att.net]
Sent: Monday, July 9, 2018 10:55 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] brushless sewing machine motors

That particular ad says "US Stock", but looks like it's 220v 50hz which won't 
work in the US

 On Monday, July 9, 2018 12:09 AM, Ralph Stirling 
 wrote:


  Anybody ever checked out this type of motor for
CNC use?  Seems like a pretty good deal for 400W
with a drive, at least for a small spindle motor.  I'm
wondering how easily the drive could be hacked for
LCNC position control.  There are a lot of different
motors and power ratings on ebay in this category.

https://ebay.com/itm/253624140119

-- Ralph
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Re: [Emc-users] So, how's Ethernet?

[Les Newell]

I beat you to it with the same link but it looks like my email went 
directly to Sven, rather than to the list. For some reason when I reply 
to this list the replies usually end up going direct to the sender 
rather than to the list.


Les

On 10/07/2018 13:38, andy pugh wrote:

On 10 July 2018 at 11:47, Sven Wesley  wrote:

You too late, Andy. ;)

Too late in the sense that you have already bought the UC400 ?




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Re: [Emc-users] So, how's Ethernet?

[andy pugh]

On 10 July 2018 at 11:47, Sven Wesley  wrote:
> You too late, Andy. ;)

Too late in the sense that you have already bought the UC400 ?

-- 
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] So, how's Ethernet?

[Sven Wesley]

You too late, Andy. ;)

On Tue, Jul 10, 2018 at 1:06 AM andy pugh  wrote:

> On 9 July 2018 at 16:56, Sven Wesley  wrote:
>
> > http://cncdrive.com/UC400ETH.html
> > http://cncdrive.com/UC300ETH.html
> >
> > Or should I go with the old school LPT port solution?
>
> How about this? It's cheaper and LinuxCNC-supported:
>
> http://eusurplus.com/index.php?route=product/product_id=614=7i92=true_category=true
>
>
>
> --
> 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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