Trying to configure Linuxcnc for a Syil SX3 mill

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21 Oct 2012 03:57 #25530 by MetalByter
I have tried inverting the step pins with no luck.
Will try it with Mach again in the morning just to make sure there are no hardware problems

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21 Oct 2012 09:46 #25533 by Rick G
What voltages are you getting on the parallel port?
What mode is the parallel port in?

Rick G

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21 Oct 2012 11:05 #25538 by BigJohnT
MetalByter wrote:

I have tried inverting the step pins with no luck.
Will try it with Mach again in the morning just to make sure there are no hardware problems


I can convert a mach xml file to a stepconf file if you like just attach it to a message.

John

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21 Oct 2012 17:30 #25557 by MetalByter
This morning I tried it on Mach again and it ran fine.
The voltage at the pins looks good, My meter will not read them properly and my scope is very old and impossible to calibrate for exact voltage levels but the wave form looks good and probably over 4 volts.
John, I have attached the Mach XML file, If you could convert it that would be great.
This is the 3rd time I have tried LinuxCNC over the years on 3 different computers and 2 different mills.
The first 2 times I gave up quickly after getting no movement and not understanding Linux, this time I will get it going even if I have to buy another computer and new hardware. But it would be very encouraging if
this present set up will run it.
Mark

File Attachment:

File Name: x3new.xml
File Size:99 KB
Attachments:

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21 Oct 2012 17:56 - 21 Oct 2012 17:57 #25558 by BigJohnT
Mark,

Here is the stepconf file. The README contains the instructions.

File Attachment:

File Name: x3new.zip
File Size:2 KB


Weird pin out for sure...

John
Attachments:
Last edit: 21 Oct 2012 17:57 by BigJohnT.

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21 Oct 2012 17:59 #25559 by MetalByter
Wow that was fast John, thank you I will try it right away.

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21 Oct 2012 18:04 #25560 by andypugh
MetalByter wrote:

This morning I tried it on Mach again and it ran fine.
The voltage at the pins looks good, My meter will not read them properly and my scope is very old and impossible to calibrate for exact voltage levels but the wave form looks good and probably over 4 volts.

It would be interesting to see if the same is true with LinuxCNC.
One obscure possibility is that Mach is forcing EPP mode on the parport, and some PCs supply more current that way.
If you see a lower voltage with LinuxCNC then that could be it.

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21 Oct 2012 18:52 #25561 by MetalByter
Just gave it a try, no luck still no movement.

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21 Oct 2012 18:55 #25562 by MetalByter
I will try changing the port settings in the BIOS

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21 Oct 2012 20:25 #25569 by MetalByter
The port setting is EPP, I just checked the wave form on the other dell running Mach and it Looks about the same as the one running Linux. I tried the jumper on the Syil interface board for the charge pump in both positions and still no motion.

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