Catia machining negative offset on part??

[Azzza]

I have a contoured part that needs to be machined (3 axis mill) undersized. I would usually just use negative value in the offset on part but I have found if I use a negative value greater than the diameter of the tool (e.g. -40mm offset with a 20mm tool) the path will not compute!

Any tips for a good way to do this job??

Thanks
Aaron

 

[drewmumaw]

Modify the input geometry.

Drew Mumaw

http://www.textsketcher.com

http://www.drewmumaw.com

 

[itsmyjob]

I might be wrong but I would say it is also link to the minimum curvature of the geometry you start with.

if you start with radius of 100mm then the offset at -40mm would result in a radius of 60mm which should be OK for a tool of 20mm radius, but if you have a 50mm radius to start with the offset would give a 10mm radius and that would be hard to machine with a 20mm radius tool.

Eric N.
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