Cutting - stock

[Cuda84]

When cutting negitive stock is the negitive amount limited to the tool diameter?

 

[Cuda84]

Alright lets try a different aproach.

 

I am cutting a surface -.039" with a 1/32" ball mill. The cutter is not going to the full depth. Dose anyone know why?

[Hardmill]

Someone correct me if im wrong, but I believe you cant

exceed the cutter rad for neg. stock.

 

Much safer to change the geometry

 

 

PEACE

[jhydekmc]

I believe you're correct Hardmill. Any time I have tried something like this I've gotten a message saying "negative stock can not exceed tool radius", at least in V9. Haven't tried it in X yet. Cuda84, it almost sounds like it's letting you go through with generating the toolpath but still isn't doing what you want, is this correct? If so this is a change from V9...

[Matt Berube at Ferron Mold]

I have a bug logged with QC about this.

 

As of April somebody in QC had told me this about a separate inquiry

 

quote:

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For now a working rule of thumb is: negative stock can be larger in magnitude than the tool corner radius in all toolpath/surface functions except pencil and flowline.

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As a workaround I have been creating offset surfaces and machining them with no stock to leave. For funky geometry I once used solid shell to give me offset geometry to cut...

 

HTH

[Cuda84]

Thank you all for your replys. I made offset surfaces to get the desired toolpaths.

 

I ran a test of a planer surface that I created in a seperate file. Same tool -.04" stock, the tool cut to the correct location, as verified in backplot. This same toolpath would not work on a 3D surface. It seems to be cutting about -.03". It is not cutting to my offset surfaces.