Messages

1

FAQs / Re: Jerky stepper motors? I'm running out of options...

« on: August 16, 2012, 04:41:57 AM »

I'll keep you posted. It may take a while as I'm buying bits and pieces as and when I can afford it. Not much to show at the moment apart from the electrics sitting on a table next to an old PC.

2

FAQs / Re: Jerky stepper motors? I'm running out of options...

« on: August 15, 2012, 01:16:55 PM »

Sorry- 'chips'??

3

FAQs / Re: Jerky stepper motors? I'm running out of options...

« on: August 15, 2012, 12:35:16 PM »

Thanks once again!

Hmm the feeling of progress.

4

FAQs / Re: Jerky stepper motors? I'm running out of options...

« on: August 15, 2012, 12:17:48 PM »

 

That works a treat thanks!!

Feeling a liittle stupid . I should have asked earlier. Must have spent a couple of days trouble shooting tweaking settings and googling this. I guess if had had a mach3 post for alphaCAM i wouldn't have had the problem. Don't suppose you have one? Maybe that's one for a new thread though..

Justin

5

FAQs / Re: Jerky stepper motors? I'm running out of options...

« on: August 15, 2012, 08:17:58 AM »

Thanks for reply.

The G-code is now attached.

As you will see I have deleted everything apart from the basic surface finishing movements for the sake of testing my system, as it was written for an SCM router.


 

6

FAQs / Jerky stepper motors? I'm running out of options...

« on: August 15, 2012, 06:57:05 AM »

Hi there! Newbie here.

When I first wired up my motors and ran a simple dome surface finishing test program the motors ran smoothly (the motors are not installed in a machine yet), I could hear and see the X/Y and Z speeding up and slowing down alternately to create the linear arcs that make up the dome shape.
But now when running the same program they are jerky and the feed speed is slowed.

After searching on the forums and trying suggested solutions with no joy I am getting increasingly frustrated.

I have tried:

*Turning CV mode on/off
*Trying different 'Look ahead' settings from 3 to 20.
*Turning off 'Tool path' in diagnostics.
*Checked my RAM/CPU is not struggling in windows task manager.
*Changing motor acceleration settings.

I have also noticed that there is a ticking noise coming from the motors when they are in motion as if they are not running smoothly. Could this be related or is this perfectly normal?

I have fiddled with and edited the code without saving a master so maybe I have taken out a crucial command?? Is there a code that should precede the XYZ movements when 3D machining?

Any help would be much appreciated.