Spoke Tension Tool

thingiverse

This is a tool for measuring spoke tension, used when building bicycle wheels or adjusting them etc. For construction you will need: 3x - M4x28mm screws 1x - M3x28mm screw 1x - M3 washer 1x - Spring. Im using a spring which has 12mm free length, OD ~6.7mm and wire thickness of 1mm. Closest i could find on the net: https://www.compressionspring.com/pc037-266-8500-sst-0500-c-n-in.html?unit_measure=me And finally, you will need a dial indicator, im using Mitutoyo No. 2047F. Optionally you can add brass inserts for the M3 screw as well as the center 'pin' M4. For printing I would recommend PLA as its quite stiff, use more perimeters for more strength - for example 5 outer shells with 0.4mm nozzle is a good start. There are 2 STLs included, one for each handle. Also a STEP file if you want to change the design. Enjoy :)