Cutting circles and arcs

[Hack]

I am under the impression that some controllers have a harder time cutting circles and arcs. Why is this and what do I need to look for when selecting a controller as my machine will cut a lot of circles / radius etc.

Thanks

[CNCadmin]

The one thing to look for is a controller with constant vectoring.

[HomeCNC]

It's not only the controller that can cause poor results when milling arcs and circles. If you don't have a tight machine with very little backlash you will see problems on cut circles in the 4 quadrants. This is where the motor must change direction and this is where you will see the quality of your machine. If you have see small gouges or flats on the 4 quadrants of a circle then your machine has some backlash that is causing this.

[OCNC]

Originally Posted by CNCadmin The one thing to look for is a controller with constant vectoring.

Is this a hardware or software issue?

Chris

[CNCadmin]

CV is done in the software, I believe that some can be controlled by hardware not sure on that one.