[marman88]

I am a new user this is my first CNC and would appreciate some help. I am using a Taig Mill with Gecko driver from Deepgroove1 and Mach3 software. Managed to build the mill and set up Mach3 without too many issues and have all my steppers running but they all seem to glitch in both directions after about 5 full revolutions.

Have tried reducing the speed went down as far as 250mm/min and still the same problem. Don't think the issue is mechanical as I can jog in steps of less than 5 revoultions without getting a glitch is only if I do a jog of beyond 5 turns that I get the glitch.

Any suggestions would be appreciated.

[james_i]

had the same i tryed another computer and they went a way. not all parallel ports are the same i have just ebayed a new one to fit to see if i can salvage the original computer or it`s the laptop full time. good luck

[Crevice Reamer]

Hi Marman. Welcome to the Zone!

Have you downloaded the XML file from Gecko?

Have you tried lowering the acceleration?

Do you have Step pulse width set to 2ms in ports & pins? If so, try setting it higher.

What do you have your steps per inch set to?

CR.

[Montabelli]

I had more than my share of jumps and bumps, turns out the problem was windows interrupts. I suggest you check out the ways to optimize windows.

[marman88]

Found the following on the Deepgroove website. I am using a Dual Core and it doesn't say "Standard PC". Am looking at getting a cheap P4 as a dedicated mill computer hoepfully this will solve the problem. Can pick up a refurbished box for $130 so not to bad if it fixes the problem.

You need to go to Device manager/right click then choose
properties/Hardware tab/Device manager button/and then click
on the plus sign next to "Computer" icon, does it
say "ACPI Uniprocessor" or "Standard PC"

It should say Standard PC, if not, there is a good chance
you'll be having issues.

[Pandinus]

If you want you can update the driver and SPECIFY to use STANDARD PC, but I'm not sure what exactly will happen on a multi cpu system... maybe just work with one core??? you might also specify in your bios to use one cpu as well if trying this...
But the refurb/lease return with operating system isn't a bad deal as you'll get and XP pro license which is probably better for a cnc than a new machine anyways

[marman88]

Picked a cheap refurbished P4 computer and all is working well now. Thanks for the suggestions.