Scroll wheel add-on for HackRF Portapack H4M

This is a 2mm add-on for the H4M scroll wheel with an extra grip texture.

I printed it in PLA with 0.1mm Fast Detail in the MK4S. No supports needed.

Should work with 0.2mm. But the texture could be affected.

The add-on will make tapping the directional buttons a little bit harder, but it make using the scroll wheel easier and more precise.

I installed it with double sided tape. The bottom notches align with the original wheel dot texture.