Tarmo4 Mods

thingiverse

My printer (UpBox+) isn't happy printing TPU and having seen this design for a driveshaft mold for hot glue - https://www.thingiverse.com/thing:4334044 - I though "why not use a whole glue stick?" This driveshaft design uses a standard 7mm gluestick - you'll need 2 of them for each driveshaft. Cut them to 68mm each and give each end a gentle twist in a pencil sharpener to take the edge off (makes assembly a bit easier). Keep an eye on your steering lock-to-lock as it may impinge on the Steering Centre Link - I haven't had a problem with my setup but others might. You will also need to cut a little away from the bottom of the battery box where this driveshaft meets the gearbox output gear to give it a bit more clearance for rotation. You can see a video of it in operation here - https://imgur.com/a/iCBeDjZ Edit - my original 2 x gluestick mod works well on my 1250KV motor but was asked to produce a 4 x gluesitck version for a beefier motor which you can find above (although I haven't tested it). The motor adaptor was something I'm testing to reduce the number of parts that need to be purchased. Requires 3 x M2.5x6 cap head screws for fixation. So far, so good!