A simple, unidirectional servo joint for servos. Designed for the SG-type servos commonly found in Arduino UNO kits, but can fit multiple servo models. It is easy and fast to print, and is an excellent educational tool for teaching servo coding!

Note: Assembly is required. I recommend using superglue to hold the pins in place, but be careful not to get glue between the moving parts. The version in the picture is done using duct tape as I did not have any superglue.