Prusa Mk3 Einsy Box Zaribo Adapter

thingiverse

The Zarbo Einsy box is nicer than the stock one - larger, and with better cable management. I tried to remix the Zaribo to fit the stock frame, but couldn't make it work. Screw locations were annoying. So I designed this. This thing works as an adapter that bolts to the four holes that the stock box attaches to - use 4 M3 screws, 15mm long. (the photos show it with 16mm screws, which protrude a tiny amount). It then has a slot that matches the slot in the 3030 Aluminum extrusion used by Zaribo. The Einsy box is unmodified and mounted with a pair of t-nuts and a pair of M5 screws. Other items that fit a 3030 extrusion should also fit, if that's desired. Note that the adapter must be mounted on the frame before mounting the Einsy box. The slot is exactly 8mm wide, as per Misumi spec for the 3030 extrusion. But when I printed the Einsy box with supports (which are necessary), the "pegs" were a little wider. It looks like the interface loops from the supports didn't come off, and I had to cut them loose. So if you print these and they don't fit, check the width of the "pegs". They need to be no more than 8mm. See photo. This was printed on a Mk3 using black Hatchbox PETG, Chris Warkocki's Pretty PETG profile, and 20% gyroid fill. Might be ok with 10%. When I printed the first attempt, I had some issues with corners lifting. Printing with a 10mm brim resolved the problem.. I printed it as in the STL, with the side facing the frame down, for maximum flatness on that side. This requires supports for the extrusion overhang. It may be possible to print without supports by printing it "upside down", but I've not tried it. I don't know if will fit a Mk2/2.5 - I don't know if the hole pattern is the same. If someone confirms that it works, please comment.