Goniometer

thingiverse

https://www.amazon.com/BikeFit-7010102-Bike-Fit-Goniometer/dp/B004WNAI6M/ref=cm_cd_al_qh_dp_t $60 for a piece of plastic with no genuine ingenuity behind it. Note the total length is 47 cm; this will not fit on most standard print beds. Print Settings Printer Brand: LulzBot Printer: Mini Notes: Set layer height as small as possible to render the graduations as well as possible, & highest resolution. Scale it until it fits on the bed. How I Designed This Reference Image BikeFit Goniometer; used this to scale the length See reference images above. I made cutouts to reduce material & help the user pinpoint the knee joint. Arbitrary dimensions for the cutouts & sighting guides. Assembly & Materials 4 mm bolt 4 mm locknut/nut 4 mm washer if necessary Center hole is sized for 4 mm bolt. Print the same thing twice; a 0th indent is provided & should be visible for most angles. Line this up with the periphery of the one in front. Add numbers in sharpie yourself. Shaded regions are 35 to 25 deg on the Lemond goniometer. Note that if you scale the print, which you probably will, the hole in the middle will no longer fit a 4 mm bolt. Future add graduations for measuring handlebars à la BikeFit Goniometer move graduations around as users recommend redesign & optimize for smaller print beds (6" x 6") add numbers forefoot measuring device