hmmm... i'm a machinist. in my shop, our tolerances typically need to be +0.00" -.005", which is tight for a forge die, but i am setting my tools down to the 0.0001", for utmost precision. i program my toolpaths to have a .0001" to .0005" scallop height for the cavities. everything we've outsourced to a waterjet place certainly gets the job done for what we need it for, but thick cuts look wavy at the bottom of the cut due to the kerf. to cut anything thick and precise requires a 5 axis head to control the kerf... but still it is no match for a mill.

thanks for playing.