9G Servo based Universal Joint

I designed this universal joint from scratch, with the idea to use it in the shoulder / hip joints of a robot dog I´m working on. (I hope I upload that soon too).

My main motivation was to get a universal joint with two DoF in one place, since that is what we mammals have in out shoulders and hip.

You'll see the design steps I wen though to get to were I am now. It is designed to fit the Tower Pro 9g micro servos

I know the print quality is not the best, sorry for that. The parts were printed with a cheap plastic (that looks like never ends!)

I'll upload new pictures as soon as I print with another (better) PLA.

Print Settings

Supports:

Notes:

You'll need to print:

* 2 Arch * 2 Axis * 1 Core

Post-Printing

Assemble instructions

To assemble this Servo based universal joint you should follow this steps:

Get two servo horns and cut them to fit into the core of the joint.
Attach the cut servo horns to the core using the servo screws (you'll need to make the hole a little bigger, but that can be done just screwing the screw)
Place the core into the first arch
Put the first servo into its place in the first arch
screw the servo horn into the servo, through the opossit hole in the core
Do that same thing (steps 3 to 5) with the second arch and servo

Category: Robotics

Descrição

Print Settings

Post-Printing