Anet E16 24v Power Supply Mount PSU

Last crawled date: 4 years, 2 months ago

This is a vertical PSU mount for the Anet E16 24v power supply on the rear right side of the 2040 frame extrusion. I'm working on getting rid of the original control box so that all parts are attached to the frame. The control box has a terrible thermal design, almost guaranteeing early component failures of the control board and/or PSU. It is also very noisy. The only reason to keep it is if you are planning on building an enclosure around the frame for printing high temperature materials (in that case, I would recommend modifying it for a 80mm fan).
After some searching, I couldn't find anything for this exact power supply which has different dimensions from other common supplies (see the pictures and notes below). I found similar mounts but they didn't work correctly for the A16 PSU sizing, had no ventilation holes (required for this supply). I could have re-mixed one, but just decided to design it from scratch.
There are two versions, one with the frame mounting holes on the inside, and one with "ears" so the assembly can be removed with the PSU still attached. The one with inside holes will make a stronger connection to the frame, but may be less convenient for wiring.
See the photos for dimensions of the supply this design is for. Mine is marked as SOPUDAR model SPD-360W. Note I cut out the original fan blade protector and replaced it hoping to reduce the noise so that will look different in the pictures from stock. I plan to further modify (or replace) the PSU top cover at some point to accommodate a quiet 80mm fan so I put in substantial ventilation holes in the mount.
This is easy to print, no supports are required as long as your printer can bridge a ~50mm span. It isn't "pretty" with nice rounded / chamfered corners, but since it will be at the back of the frame and not too visible I wasn't that concerned about aesthetics. Print it with the longest side along the Z (vertical) axis.
Power Supply: The dimensions are different than typical with the face being 110x200mm, not the more common 115x215mm. It's noisy, and the cooling is not great. It has a 60mm fan that runs full speed all the time, attached to a thin folded sheet metal cover that has the effect of amplifying the sound. There are no ventilation holes, the only openings are near the connector block and the voltage selection, which together only provides ~9 square centimeters for incoming air. For comparison, the mount I designed has close to ~37 square centimeters for ventilation. If you don't mind spending more, consider replacing it with the meanwell supply used on the ender 3, it is thinner so it doesn't hang over the 2040 frame, and the fan only runs when it's needed. There are mounts already designed for that one.
Other materials needed:
(4) M4 8mm bolts for frame attachment
(4) M4 T-Nuts (rotating variety)
(2) M3 nuts
(3) M3 6-8mm bolts for PSU attachment
(2) M3 screws from original box for switch/fuse assembly
and of course the original power/switch/fuse assembly and wiring.
Printing took a bit over 10 hours at 0.24, one could likely go bigger to get the time down. It took about 34 meters of filament.