Nah, that part was printed in nylon by Shapeways before I had my own printer and then painted. I have printed similar parts at home and they are really tough with a 100% in-fill. I will send you a PM with the file download location. BTW, here are three good reasons why its better to have two separate fuse links rather than one double:

* Safer to test the drive motors by themselves.

* If one fuse blows, you are not throwing out a working fuse as well.

* Its quite hard to pull out two XT-90 connectors if you need to in a hurry.

Been there, done that