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Router cutting wrong segment of circle - Microvellum single part editor

2/7/20       
Katie Member

I'm hoping someone here can help me understand why our router (Felder H10) is recognizing and cutting the wrong segment of a circle on parts designed using microvellum single part editor.

For example - I designed a part that essentially looked like an eyebrow cut using segments of multiple circles to create a smooth curve. When it was transferred to the router it cut the portion of the circle that had been clipped off. I've attached two photos showing what it read and what it was supposed to look like.

Thanks for any guidance!


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2/9/20       #2: Router cutting wrong segment of cir ...
Mike

Katie,
Not sure how your machine reads code as to how arcs are defined. There are more than one way to do that with standard G-code. Maybe you could just post the part dwg from your work order? I am thinking it might be an issue with the AutoCAD end of the equation.

2/10/20       #3: Router cutting wrong segment of cir ...
Nathan W Member

Hi Katie,

You could try to tackle that a but differently. When i have to transition from a line to a radius like that, I draw them without the radius inbetween, with a sharp corner. Then use the fillet tool to create that radius between the lines. That way you dot have to trim your circle and the inner portion of the circle was never drawn in the first place. I run microvellum as well, and it does some really wierd things sometimes.

2/10/20       #4: Router cutting wrong segment of cir ...
Gary Balcom

I used to program for one machine in MV that wouldn't accept an arc with an included angle more than 90 degrees. Try breaking that arc up then joining the polyline back together and see if that works.

2/17/20       #5: Router cutting wrong segment of cir ...
Brian

A couple of years ago I had issues with cutting arcs, long story short I opened a trouble ticket and the issue was resolved. Turned out that the tool file was not doing its calculations correctly. Bet that is what you will find.


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