Handle and top cap for Silca track bicycle tire pump

cults3d

Update 24 Feb 2019: I've switched over to Fusion 360 for my modeling, so have been going back through my earlier SketchUp designs and remodeling them entirely. I've included the new design alongside the F3D original as a point of reference. I recently broke the handle on my vintage Silca track pump, so I measured and determined that the thread on the pump shaft is an M10x1.5. Figuring I could make my own handle, I got a custom M10x1.5 nut from a reputable source and imported it into SketchUp. I then ditched the outside parts and used only the thread. Using quick measurements and some educated guesswork, I designed the handle with one-hand use in mind - a feature that's essential since I always pump this bike tire using one hand to hold the chuck on the valve. I'm thrilled to report that my design feels great to use, way better than the much smaller original handle. While fitting things together, I noticed that although the top cap wasn't broken, I could print up a replacement and include clips to mount the pump hose - a feature that was lacking from the original design. It's amusing to think that some cars (like Acura Integra models) have an M10x1.50 thread on the shift lever, making it possible for me to use this pump handle as a shift knob on one of those vehicles. Almost wish I still had an old car like that in my possession!