should this oval cut as arcs or small straight line moves?

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should this oval cut as arcs or small straight line moves?

Postby kevinl » Tue Oct 31, 2006 12:52 am

I use the mach 2/3 arcs pp but the oval in this file still cuts as straght line moves. Do I have somthing messed up or does it only do circles as arcs?
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kevinl
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Postby CRFultz » Tue Oct 31, 2006 10:52 am

Kevin it should cut as a arc. There are only 4 nodes so Mach should cut it pretty smooth....My guess it would be your Mach settings......check to see if you have constant velocity box checked...
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Postby Tony Mac » Tue Oct 31, 2006 10:57 am

Hi Kevin,

Arcs will only be output in the CNC code where the original vector geometry includes arcs and lines.
Where a design is constructed from Bezier curves the toolpath will be G1 point to point moves.

It is possible to convert Bezier curves to Arcs using the Node Editing Tools that are available
off the Right mouse menu, or a much quicker method is to use the keyboard shortcuts,

N - Node Edit
I – Insert Point (often need to insert intermediate points to maintain the shape)
A – Convert span to Arc

This is can be a time consuming process but sometimes worth the effort.

I hope this helps,

Tony
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Postby David Fuller » Wed Nov 01, 2006 5:28 pm

Tony, is it possible to arc fit vectors with V carve?


Thank you,

David
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Postby Tony Mac » Wed Nov 01, 2006 5:43 pm

Hi David,

Not automatically.

Bezier curves can only be converted to arcs using the manual Node Editing
tools described above.

I'm not sure if the DXFTools utility in this thread is of any help,

http://www.vectric.com/forum/viewtopic. ... bc98c#4958


Tony
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Arc Fitting

Postby David Fuller » Fri Nov 03, 2006 3:35 pm

Hello Tony,

Do you have any plans on adding Arc-Fitting (other than curve by curve) of curves?

Thank you,

David
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Postby Tony Mac » Fri Nov 03, 2006 3:40 pm

Hi David,

This is on the development list but afraid I can't give you a time scale at the moment.

Tony
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