Be an Angel
Cherub is more accurate. I made this on the HB2 Sunday. I was of course running the Taig spindle. The roughing and the finish were both done with a 1/8 (0.125) inch ball end mill. The total run time was 1 hour and 35 minutes at 50 IPM. 10,600 RPM.
The spindle is now just slightly warm after that kind of run. The spindle break in has about 5 hours of run time. The motor was HOT but that is normal for the motor and that run time. Taig rates it as a continuous duty motor so heat is not a problem.
The Sieg X3 mill motor controller has been replaced (lightning damage) and the machine is back into operation! Yea!