track pad for lego tracks

cults3d

some toy caterpillars don't stick to the ground because it's hard plastic. so I made a TPU skate with a renurage that clips on the tracks (as many skate to print as tracks) be careful, the "heads" of fixation have one direction (it does not fit in the other direction). tested on "fake" lego technics found in china. but also works on some lego technic ==> Sorry if I sell, but some people steal the free files and then sell them back.