Square Corners, Male Offset

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   I am using a Biesse Rover 24 that has a tendency to wiggle when it changes direction.

Whenever we program a cutout using an onion skin (finish pass) for whatever reason the tool slows down when it hits corners and eliminates its wobble. It does this on both passes.

HOWEVER!! Every time we try and tell the machine to cut through the material (3/4 plywood) in 1 pass it hits the corners full tilt and creates unacceptable wobble marks on the back end of all the corners.

Is there a setting that I am missing or a toggle to click to make it slow down around corners? We cant really afford to onion skin every single part. Has anyone else encountered this issue?

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Losark Members Profile Find Members Posts Apprentice Joined: 07 May 2013 Location: United States Points: 2	Post Options Post Reply Quote Losark Report Post Thanks(0) Quote Reply Topic: Square Corners, Male Offset Posted: 11 September 2013 at 12:35pm
	I am using a Biesse Rover 24 that has a tendency to wiggle when it changes direction. Whenever we program a cutout using an onion skin (finish pass) for whatever reason the tool slows down when it hits corners and eliminates its wobble. It does this on both passes. HOWEVER!! Every time we try and tell the machine to cut through the material (3/4 plywood) in 1 pass it hits the corners full tilt and creates unacceptable wobble marks on the back end of all the corners. Is there a setting that I am missing or a toggle to click to make it slow down around corners? We cant really afford to onion skin every single part. Has anyone else encountered this issue?

shawrouter Members Profile Find Members Posts Professional Joined: 18 November 2008 Location: United States Points: 69	Post Options Post Reply Quote shawrouter Report Post Thanks(0) Quote Reply Posted: 18 September 2013 at 3:35pm
	I don't think this is a software problem. I would check to see if your motors and properly seated and tight.

Losark Members Profile Find Members Posts Apprentice Joined: 07 May 2013 Location: United States Points: 2	Post Options Post Reply Quote Losark Report Post Thanks(0) Quote Reply Posted: 24 September 2013 at 10:12am
	Yes it is primarily a machine issue. What I am trying to figure out is how to replicate a condition that the software creates that mitigates my machine's shortcoming.

jessegreen Members Profile Find Members Posts Expert Joined: 27 October 2010 Location: United States Points: 42	Post Options Post Reply Quote jessegreen Report Post Thanks(0) Quote Reply Posted: 25 September 2013 at 8:46am
	You could put a bridge that wraps around the corner. Usually the machine will slow down a little when it has to raise up in Z and that may create the effect you are looking for.

triangleMD Members Profile Find Members Posts Expert Joined: 14 March 2007 Location: USA Points: 21	Post Options Post Reply Quote triangleMD Report Post Thanks(0) Quote Reply Posted: 25 September 2013 at 10:00am
	Have you tried comparing results with "Sharp corners" turned on & off in your router offsets?

Todd Zuercher Members Profile Find Members Posts Master Joined: 16 April 2010 Location: United States Points: 142	Post Options Post Reply Quote Todd Zuercher Report Post Thanks(0) Quote Reply Posted: 07 October 2013 at 2:13pm
	Often machines have lower acceleration rates in thier Z axis than the others. If you have a movement in the Z then the other axis have to match their acceleration rates to that of the slower Z. You could probably eliminate your problem by lowering your acceleration rate in the problem axis. (I would also look into correcting what ever backlash and or servo tuning problems are the root source of the problem, could also be worn drive belts)