Cnc plasma torch head

[todmorg]

But I did run into a problem and I'm looking for advice. It seems that my steppers jerk when they change direction. I have a video showing how it jerks at certain points of drawing a circle. I would love to smooth that out if possible.

http://www.youtube.com/watch?v=T-cDu1ZQw4E

It is your contant velocity settings in mach3, you are probably set for exact stop. config/general config/checkbox half way down the second column.

[Drandolph]

I just tried that tonight and it's still jerking. I think my next step is to break out the scope and see if the problem is at the drivers or from the computer. Thanks for the tip. It might be half the answer.