This is a mechanism to transmit rotation power between two axles that can move relative to one another but stay parallel at all times. It can take higher loads than a doublecardan joint.

I need to ad a clearance parameter for the pins. The first test-print was stuck.
Generally this design needs a lot of improvement. Expect problems.

Known issues:
★ short pins are too stiff
★ tolerances are too thigh
★ parts are too thick

it was inspired by this:
http://www.thingiverse.com/thing:14060

and it is intended as a drive for my moineau pump model
http://www.thingiverse.com/thing:28237

For the connector pieces the optimal length is chosen automatically.

You'll need the following parts for a full set:

• 2 outertricrosses
• 1 innertricross
• 6 connectors
• 6 Short pins
• 3 long pins
• 2 main pins
• = 20 Parts total (of 6 types)

At the moment it's not included in a whole working machine.
So you have to make your application and this one fit together yourself.

If you use customizer please untick the publish checkbox.

(the main pins standard length is symmetric when a 2mm thick washer is added)