I'm no expert, but I use HSM quite a bit now, but I do still struggle from time to time and revert to the 'normal' 3D strategies. HSM has more strategies than I know how to use!
As I design 99% of the parts that get cut on the machine I am slowly changing some of the older 2D designs to 3D, to take advantage of the capabilities of the machine. It really toots my horn when I see the finished part come off the machine.
You mention finishes and tolerances. It's funny because on one of the jobs I did my business partner moaned because I'd taken the time to put a nice finish and he claimed that it didn't look CNC machined! So now I have to hold back and try to show the cutting path on 'not so important' faces.
concerning tolerances, I usually stick at around 0.01mm for finishing, but sometimes go down to 0.005mm as this seems to get me a better, smoother tool path, with less Z rapid jumps. Takes longer to calculate, and gives more code, but the machine copes so why not.
But as I said, I'm no expert, however, as every job goes by I learn a new trick, which either reduces cutting time, or gives the finish I desire.  |