[MENTION=141062]JonnyHK[/MENTION] they are located here
https://github.com/wahoofitness/ELEMNT-Mount
I am seeing Wahoo Fitness as a very forward thinking company. This alone may make my next bike computer a device from Wahoo Fitness once my Edge 810 kick the bucket. Just note that there are some thin wall features that would be difficult to 3D print. They specify that these models were built for injection molding with a mix of 90% nylon / 10% glass fiber.