Heat Sinks Finished

All the stepper motor heat sinks are finished for the HB2 CNC router project. The HB2 requires four stepper motors but an initial heat sink was created as a practice piece. That is why there are five heat sinks in the photograph. The trial version (on the right) is actually perfectly suitable for use as it has only minor cosmetic flaws.

The “extra” copy will be kept as a sample of what can be accomplished on the tiny but mighty Taig CNC mill. There is over 8 hours of run time on EACH heat sink, so the photo represents 40 hours of run time on the Taig. The longest single period was 4 hours and 10 minutes. No problem what-so-ever on the mill and all the accessories. I did have my initial air compressor fail on the trial piece.

These are the most complex parts I have currently produced on the Taig CNC. The A3 wheels were complex too, but not near the run time necessary for these heat sinks.

I have already started mounting the heat sinks and the steppers on the HB2 frame. More pictures soon.