Heatsink for HobbyCNC PRO


Aluminum heatsink for HobbyCNC PRO board.


The Heatsink for HobbyCNC PRO is pre-marked with drilling locations for new assemblies before soldering in the Driver ICs. Video: Heat Sink Installation, HobbyCNC PRO Board


  • Heatsink marked with locations for screw holes (Requires drill-and-tap 4-40 in 8 places.)
  • 8 4-40 x 1/4 screws
  • Thermal paste

If your driver ICs are already soldered-in, then you will need to mark-and-drill your own hole locations to match your actual installation.
For HobbyCNC PRO boards only. Only one heatsink required per board.

Heatsink is included with the HobbyCNC PRO Assembled board

Additional information

Weight 0.17 lbs
Dimensions 2 × 6.25 × .125 in

Aluminum heatsink
(8) 4-40 x 1/4" screws
Thermal paste, 1.0 gram tube

Do I need a heatsink?

A heatsink is always a good idea. And you should have a fan blowing across it also.

We STRONGLY recommend a heatsink with any motor over 2 amps.

Can I provide my own heatsink?

Sure! We recommend a minimum of 1/8″ thick, 2″ wide and 6.25″ long aluminum stock. Add a fan blowing across the heatsink.

We recommend installing the heatsink BEFORE you solder in the driver chips. See the video on Installing the heatsinks and driver chips.

Dimensions for making your own heatsink are in the build instructions and in the Heat Sink FAQ (link at the bottom).

You may also like…