curious if any cnc'ers have ever routed plaster of paris blanks, how they machine, speeds, bits, tips and tricks, etc...
charley
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Thread: have you been plastered ? ? ?
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09-04-2004, 10:21 PM #1
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have you been plastered ? ? ?
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09-09-2004, 06:30 AM #2
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probably not too relevant, but where i work we machine parts out of a 2 part compound, probably pretty similar to plaster in terms of hardness and how it would machine. However we machine on a pretty big scale, we use a 20mm ballmill, and occasionally a 25mm endmill. we use a spindle speed of 10500 - 11000, and a feed rate of 18m/min for our final cuts (no more than 3-4mm depth of cut). Any more than that (ie where the goop has pooled and may be 20 or 30mm deep, we have to go a lot slower, about 30% feed. It makes dust like you wouldn't believe!
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