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The driver and driven gears transmitting motion from the motor were were also fabricated with FDM. The gears were designed on geargenerator.com and exported to STL format for printing. Dimensions Dimensions were chosen to amplify the motor's torque output (MA=2.5).
Base Plate Baseplate and Stand
The base plate baseplate was laser-cut out of acrylic while the stands were wade of wooden blocksa sheet of acrylic using a sketch of the baseplate surface from the CAD drawing.
Fig. 3: Base plateBaseplate
The stand was originally planned to be constructed from 8020 beams but due to unexpected shipping delays, an alternative had to be found. We choose to use wood legs as an alternative due to the wood shop having an extra supply of 2x4 available for use.
We cut two 3 ft pieces out of an 8ft 2x4 and subsequently cut those to pieces in half, giving us 4 legs. Using the jointer and planar machines in the wood we cleaned up the faces of each of the fours to achieve a smooth flat surface on each of the faces of the legs. After the facing was completed we cut the legs down to 2 ft while flattening the ends of each of the legs using the table saw.
Assembly
Mounting hubs, set screws, rolling bearings, and additively-manufactured retention rings were used to achieve tight-fits between the shafts and bearings.
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