Comandante C40 Big Joe knob

thingiverse

Comandante C40 MK3/4 knob is fine, but I wanted to try the Big Joe. Instead of buying one, I decided to print it :D There's a great model designed by @kaanyaren but it requires a snap-on button with the correct dimensions. Instead of buying a snap-on button I just designed a model that does not need it. My design requires two tiny (15mm x 0.8mm) metal rods which I cut from a paperclip. I used a ~3cm / 1.125" paperclip. You can use a thicker rod. Just add a print pause command on an appropriate layer in your slicer, so your printer stops before printing the top layer. I added a test.stl file you can print and check if your rods will fit. I've been using this knob for a week and everything looks good till now.