First of all, 

I do not condone the use of this in a 3d printed form. I personally have tested it in Polycarbonate and it was fine up to the full 70kg however I cant attest to the lifespan of it. For this reason I am uploading this with the assumption that anyone downloading it will be using a CNC to cut it from aluminium or steel.

At the very moment there are only 2 types I have made, 1 a copy of the original that is used by the max itself, and 1 which will accept M6 gutter bolts. I will be adding more in the future as I find free time to measure other fixings. 

I have also left a lot of them free so please feel free to create your own.