2 speed and N gearbox
grabcad
this was for my RC VW metal I wanted to provide it with a 3-speed gearbox I 3D printed for testing before going to metal but I found that ABS is very strong and enough for such an application the rods here are 4mm rod screw which what it was available to me that time so i had to deal with the way the pinion is fixed to the screw rod is by triple nuts one embedded inside the pinon and one nut on the outer side tightened against each other.the main motor is variable and made for belt connection with the input to the gear box .
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