Originally Posted by ger21 They don't get dull THAT fast.  |
I've worked out that I'll need to make LOTS of rings to make a large sphere, so the linear distance travelled by the bits will be quite high, so I'm not expecting them to last too long.
I seem to recall reading an article about router bit life. Quality cutting was measured in the hundreds of feet. Not much when you think about the distances travelled by these CNC machines' spindles.
Originally Posted by ger21 Yes, the method you describe will work just fine. |
Excellent. Thanks.
Originally Posted by ger21 Does your CAM system know?? Depends on your CAM system The lower end .dxf converters pretty much do what you tell them to do, they just follow the drawing you give them. Most if not all 3D CAM systems do need to know the stock size. But you should always verify the code they produce "just in case" 
I'm not sure if you'll be able to do exactly what you want in a CAM package. It shouldn't be too hard with a .dxf converter, though. |
OK. That all sounds logical. I guess it shouldn't be
too hard to follow a 'cut lots of rings through this solid sheet' job with a 'you've got a solid ring, now round the edges' run!