Bicycle headset cup remover tool cap

thingiverse

I designed a tool to remove headset cups/races from bicycle frame head tubes. The tool was crafted from a foot-long piece of 3/4 inch diameter EMT electrical conduit obtained at my local hardware store. I manufactured the cap in PLA with 50% infill density. To secure it, I used a mallet to gently tap the cap into place at the end of the EMT conduit. Since it's press-fit, no adhesives are required. After using the tool a couple of times, the PLA has proven resistant to hammer blows. If the cap becomes excessively damaged, I can simply print a new one and replace it without any issues.