small dc motor gearbox

thingiverse

This is set of objects and scripts allowing to build very simple gearbox. I made it mainly for re-use of small and weak DC motors. They are usually too weak to use with printed planetary gearboxes, so they require very low-torque first stage. Changing and choice of gears is very easy as gearbox core support is based on two threaded rods. It contains parametric (or at least easy to modify - openscad) motor holder , skate bearings holders (they are used to support rome reductor gears) threaded rod holder (this is used to fasten whole gearbox to a housing) and plastic planetary gearbox for hex shaft (this allows supporting hex shaft and allows power output via hex shaft - for example to peristatic pump rotor) perhaps more elements will come later. It serves as great toy and can be used in any slow motion high torque application . many elements are copied from other people's designs , i hope i've included all credits , if not - notify me.