Summary

This is a really snugly fitting case for the cheap generic SG90 servos you can buy everywhere such as the TowerPro. You could glue the case to something or include it within another model or use the attached bolt holes. It fits so well I didn't bother to use any screws to hold the servo in place, but you can if you want - especially if you use the greater tolerance model. I didn't use any supports and did a little cleanup on the hole for the wires and plug to come out of. It will take a bit of wiggling/force to get it in, but I was able to get it in and out even using the lower tolerance version.