Thank you for the answers to my last question. I have one more question regarding choice of tool bit. I have a small desktop cnc machine with a 400 w spindle how big of a end mill tool bit could I use safely with out out doing damage to the machine or spindle?
Thank You,
Capdenny
Another question from a newbie
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PaulRowntree
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Re: Another question from a newbie
It would all depend on what you are trying to cut wood, foam, plastic ...
On a small machine I would see little point in going over 0.25" in wood. If it tough going, ramp into the material, and use a smaller stepover/stepdown to reduce the force on the cutter. But too little cut can burn the material because the sawdust leaving the cut zone doesn't dissipate enough heat. Feeds and speeds for each material is the art of machining. Gained by starting with F&S charts, then developing experience on what your machine can handle.
On a small machine I would see little point in going over 0.25" in wood. If it tough going, ramp into the material, and use a smaller stepover/stepdown to reduce the force on the cutter. But too little cut can burn the material because the sawdust leaving the cut zone doesn't dissipate enough heat. Feeds and speeds for each material is the art of machining. Gained by starting with F&S charts, then developing experience on what your machine can handle.
Paul Rowntree
WarpDriver, StandingWave, Topo and gadgets available at PaulRowntree.weebly.com
WarpDriver, StandingWave, Topo and gadgets available at PaulRowntree.weebly.com