Tensiometer

thingiverse

Notice: - Still in development, proceed with caution! - You must be well-versed in bike mechanics before using it. - If you're looking for a precise tool, purchase the original from Wheelfanatyk! - Printing this out may not align with other parts, or something else might go wrong. Visit https://www.thingiverse.com/groups/bike/forums/general/topic:28979#comment-1847641 to help develop this project. - Individuals with small hands may find it difficult to use this tool. - To determine spoke tension, you'll need to calibrate using a force gauge for tensile load combined with a spoke tension device. Update: - You can now print the body on a small printer with dimensions 120 mm x 120 mm. - The "spacer" file is no longer needed (it's now integrated). - Thin M4 washers are also integrated, so you won't need them. You'll also require: - A dial gauge with around 12.7 mm travel and a wrench that fits in the tensiometer body. You can purchase one like this from China or use this digital gauge. - One linear rail: TSK LMBM9 - 80mm (look for used ones, which are cheaper. Alternatively, you can get the cheap one from the third picture, but be aware it may not fit perfectly). - Two 624 ZZ bearings - One spring with a length of 20 mm to 25 mm (depending on your dial gauge), an outside diameter of 9 mm, and a wire diameter of 0.9 mm. - Four M3 x 5mm countersink screws - Four M3 x 8mm socket head cap screws (inbus) - Four M3 x 30mm socket head cap screws (inbus) - Eight M3 nuts - Four M2 x 6 mm screws (depending on the used dial gauge) - Two M4 x 20mm lens head screws (maybe inbus) - Two M4 nuts - A small piece of PTFE-tape to prevent deterioration of the bolt that touches the spoke - And, of course, a wheel to work with! I hope this tool will be beneficial for those with special interests in bicycle mechanics. It's fitting that it will serve its purpose as intended by its inventor. Thanks to Jobst and his friends for their contributions. Special thanks go to cmh and QuangVuong, who helped develop this project!