Spur and Gear for Vaterra Ascender
thingiverse
This is a derivative of http://www.thingiverse.com/thing:3575. I created this model to experiment with different gear ratios for my Vaterra Ascender. Using Openscad, it's easy to design custom spur-gear combinations. Instructions: Measure the distance between the centers of your current spur and pinion gears. Adjust DISTANCE_BETWEEN_CENTERS accordingly. Set TEETH_1 and TEETH_2 to your desired values. Modify CIRCULAR_PITCH_DEF until the gears mesh correctly. You may also need to adjust SPUR_ROTATE_DEGREES so that you can see the teeth engage properly.
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