Tool: Ball Nose definition in BobCad - CNCzone.com-The Largest Machinist Community on the net!

rherman · #1 09-20-2006, 04:26 PM

Under Tool definition/selection on the NC-side of things in BCC, how do you define a ballnose cutter? There are only D and E parameters. Would a 3/16" dia. shank, 3/16" diameter ball nose cutter be: D=0.1875 and E=0.1875 or D=0.1875 and E=.125 (or some formula derived value)?

Thanks,

Rob

tobyaxis · #2 09-20-2006, 04:29 PM

D=.1875
E=0.0

rherman · #3 09-20-2006, 04:30 PM

That's it! Thanks, can you explain what E actually is please.

Rob

tobyaxis · #4 09-20-2006, 04:34 PM

E= is the diameter of the tool tip. If you were using a 1/2 Diameter BULL NOSE with a .125 Corner Radius it would look like this:

D=.5
E=.25

rherman · #5 09-20-2006, 04:46 PM

Chasing threads!

So for a BALL vs BULL nose the E = 0 since the point at the tip is the core diameter - E. I see. Thanks again, Toby.
Rob

tobyaxis · #6 09-20-2006, 04:48 PM

Your welcome

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