I noticed the motors on the CNC were getting a bit warm after a few hours. Not too bad but uncomfortable to touch for more than a few seconds….
I ordered a bunch of 60mm X 60mm X 10mm heatsinks off ebay and got a bag of 4in clamps from Lowes.
I just had to mill clearance for the motor wires and for the spindle fan. I started with the spindle since that’s the hardest to do.
I just cutoff the center fins. I was tempted to mount it vertically and mill a curve that matched the fan diameter but that’s too much effort for me.
A quick test fit with the spindle all the way up and it looks good.
The wire slots were easy. Then a shot of paint and they’re done.
I clamped it up temporarily while a bent the hose clamps into a matching square shape.
The end result is pretty good.
I used a dab of heatsink grease on each one.
Yes, I used a saw blade for a squeegee….
I removed one to be sure I had good contact with the motor.
Two down and one to go.
And the last one…