SKR Mainboard Case and upgrade for TronXY X5S

An enclosure for the BigTreeTech SKR v1.3 32-bit 3D printer mainboard. I replaced the stock 8-bit board of my TronXY X5S with this. It can be mounted to the 2020 rails of the bottom frame, like the regular board.

Post-Printing

Description, Concept

The dual 40mm fans of the top part blow on the heatsinks of the stepper drivers. Dual fans make sure that there's enough cooling to get the current print job finished even if one fan fails.

The top part is attached by four magnets so it's easy to get access to adjust stepper current.

The mounting holes in the bottom part are suitable for M3 x 4 x 4 brass inserts, the kind that is heated then pressed into the plastic to melt-lock into place.

To throttle the 40mm fans to quieter levels, I've added a tiny adjustable step-down board so I can regulate the voltage going to the fans.

Assembly

Make sure that your screws do stick to a magnet. Some kinds are made from steels that are not/weakly attracted to magnets and will not work for our purpose.

Mount the board with four M3x8 screws into the standoffs of the bottom part. Don't use long screws, they might crack/unthread the plastic.

Mount the fans to the top part, with the airflow aiming into the case. Depending on your printer and settings, they may not require screws but only need to be pushed into place.

Screw four short M3x8 screws into the legs of the top part. (Wood screws with flat heads work fine as well). Add four small neodymium magnets (5mm Ø discs) to these heads. Secure them with some glue.

When attaching the case, start with aligning the upper legs to make sure you don't push the magnets on the lower legs onto the stepper boards. (adding a layer of insulating tape to the magnets will make things safer).

Magnet between top and bottom M3 screws.

Category: 3D Printer Parts