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General Mach Discussion / Mach3 under Win7 toolpath display interfere with motor running

« on: December 22, 2010, 06:36:19 PM »

I know the title sounds very strange but here are the problem I found:

Mach3 installed in 2 brand new PCs running Windows Vista Starter, both have the same problem.

Once Mach3 is running JOG mode work flawessly. But after loading a Gcode program all goes wrong. During execution or JOG mode all axis make some strange noises at random but all simultaneously (if they are moving of course)

I tried to touch the BIOS (worked on another PC) unsuccesfuly. Then I unchecked all options in the toolpath display menu and it greatly improved. But some trouble remains.
If I run Mach3 in a very little window also works pretty well.

I think there´s some kind of interference than came from the video or graphic controllers in Win7 that corrupt the steps cadence. I also tried with a non-onboard grapic card and it did not provide the solution. I tried with the onboard and offboard LPT ports and got the same.

I am running out of ideas, have you any tip for me?

Happy holidays, sorry about my english

Best regards

Alex

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General Mach Discussion / Mach3 under Windows 7

« on: December 07, 2010, 03:43:58 PM »

Hi tere!

I have a milling machine runnign Mach2 under XP for years. The PC was stolen so I purchased a new one, XP is no lobger available here so I bought Windows 7 starter

I installed Mach3 using the Vista instructions I found on Mach´s site. Everything owrked well, for a while, and then the motors started to loose steps and make strange noises.
It does not happen all the time. If I start Mach3 and do some jogging only, it works. But after I load and execute some g-code the problems start again.
I tried to swicth Mach3 versions, installed aditional LPT boards, change ALL parameters. It improve but the problem allways happen sometime.

Is Mach3 compatible with W7? Do I need a special version? Do I need to buy an XP machine?

Please help!

Thanks in advance

Alex