Replacement cap for Topeak Pocket Rocket bicycle pump

youmagine

This morning I discovered the hard way - stranded by the side of the road with a flat tire - that the cap on my air pump must have come loose. I'd never had much success printing threaded parts before, but I've recently upgraded to a better-tuned printer, so I decided to give it another shot. It works! Printed in PLA at 0.1mm layer height, created with OpenSCAD and processed through Slic3r, the job ran smoothly on my Prusa i3. I used the OpenSCAD threads library from dkprojects.net/openscad-threads - if you're a Topeak Pocket Rocket owner, you can simply use the STL file; otherwise, download the two SCAD files and make any necessary edits. Be patient, as rendering the threads takes an impressively long time - around 5 minutes on my 6-core, 3.5 GHz machine with 8G RAM. Slic3r crashed the first time I opened the STL file, but worked flawlessly the second time - a bit of a weird glitch.