SG90 Cap

thingiverse

I couldn't find drawings or dimensions for the little cog/drive on the Tower Pro SG90 servo, so I created 8 different designs with varying sized "teeth" to see which fit best and this is what happened!\r\n\r\nThis basic "cap" serves as a template or building block for integrating it into whatever structure you want to move with your servo. It features space for a recessed screw to secure it to the servo.\r\n\r\nI had it printed via Shapeways highly accurate laser sintering, which allowed me to get the detail in the 21 0.3mm teeth just right.\r\n\r\nIt fits snugly over the top of the drive and the teeth mesh perfectly so it won't slip when rotating. My other model "Meccano SG90 Cap" is an example of this same design integrated into a "disc" with meccano spaced holes: that was the design I created for testing.