HB2 Milling Heat Sink

I spent the weekend getting the last of the CNC milling bugs out of making the stepper mounts/heat-sinks for the HB2. Here is a picture of the trial version. I finally have all the speeds and feeds correct for the fragile little 3/32 end mill I am using to cut the fins. This thing is beginning to look like the cylinder head on a lawnmower.

The oversize holes near the top were a mistake. I could also say they were an experiment.

I use mist cooling when doing the milling. The air compressor broke on Saturday that sprays the mist. Today with the new compressor everything went fine. The DeWalt is a good brand. I really like the lower noise level. It is not silent but a lot more bearable than the Kobalt.

Here is a link to a short video showing the milling of the heat sink above. There is actually a fine cooling mist coming out of the nozzle as well a good bit of air. The air compressor was NOT running in this video.

I have the four blanks cut today for the real parts. I feel confident in starting on the real product.