XL4016 buck converter case with fan and DIN mount

This is for the boards with a voltage readout (see images). Adding a fan will allow you to use the buck converter under heavier sustained loads. You will need:

• 3010 axial fan
• M2/M3 screws
• Optional: M3x5x4 (Voron standard) heatset inserts
• Optional: 2in-6out or 2in-4out wire connectors, 2pin switch

There are 3 versions: M2 self-tapped, M3-self tapped, M3 heatset inserts. Choose accordingly.

If you have any questions about assembly, ask me in the comments.

Base

There are two versions of the base: small and with connectors (see images). The DIN clip can be attached at several different places behind the full-sized base. There are zip tie slots for strain relief or to attach other stuff. The switch just clicks in, and there are cutouts to pass wires.

Top

The top needs supports. Only the cutouts really need them, so you can either paint them manually or disable bridge supports (in OrcaSlicer support > advanced > don't support bridges). May want to enable mouse ears or brim. The fan can be oriented to blow inward or outward. Voltage adjustment is accessible through a hole.

The top snaps onto the base.

DIN clip

Spring tested in PETG.

Tip

Some of the XL4016 boards don't have the MOSFETs properly screwed to the heatsink. Make sure they are snug. If the screw hole in the heatsink isn't tapped properly, you might need to retap it or force the screw through.

Print settings

Not sure how PLA will hold up with heat. I used PETG.

Used the clip