Page 1 of 1

BallScrew Compensation (screw comp, laser comp) is a Standard Feature with the Acorn CNC controller. Video by Alan

Posted: Tue Oct 10, 2017 9:12 am
by cnckeith
Back Lash and Screw Compensation is a Standard Feature with the Acorn CNC controller Alan shows us how he used Screw compensation to increase the Accuracy of his home build Bench top CNC milling machine. Video by Alan




related documentation by Marc,

http://www.cncsnw.com/LaserComp.htm

Re: Back Lash and Screw Compensation is a Standard Feature with the Acorn CNC controller. Video by Alan

Posted: Sat Jul 21, 2018 5:17 pm
by cbb1962
This is a great video! I can see this for a Mill, but has anyone done screw compensation on a router without that kind of DRO? If so, how did you get the extremely accurate measurements that are required?

Thanks!

Re: Back Lash and Screw Compensation is a Standard Feature with the Acorn CNC controller. Video by Alan

Posted: Sat Jul 21, 2018 8:11 pm
by AMHKnives
For large movements or even more accurately measuring you can use a laser interferometer. Its a much more expensive and takes a ton of time to setup and use. I have a youtube video about using one i made and a ballbar to really dial in a mill.
Alan

Re: Back Lash and Screw Compensation is a Standard Feature with the Acorn CNC controller. Video by Alan

Posted: Sat Jul 21, 2018 9:32 pm
by cbb1962
I've seen the video it was very detailed and really well done, but I don't have the expertise or the equipment. I'm wondering if screw comp is something that the router folks do? Back Lash comp, Screw Comp, or neither. My machine is for wood and plastic; is screw comp overkill?

Re: BallScrew Compensation (screw comp, laser comp) is a Standard Feature with the Acorn CNC controller. Video by Alan

Posted: Fri Oct 06, 2023 4:16 pm
by cnckeith
New video by Uwe Mattern showing how he uses Centroid Ballscrew compensation for better precision on his bench top CNC milling machine.