Ender 3 low profile power supply mod

Summary

I started a video series in which I modify an Ender 3 pro in an unusual way. I started with making it foldable and in order to do this I had to find another location for the power supply and display. Because I’ve been asked about this power supply mod in particular I decided to upload this separately like I’ve done with the display mod.

This mod utilizes the unused space at the bottom of the printer which happens to be a perfect fit. So perfect that it looks to good to be true and I started wondering why this is not the default location.

An important thing to mention is that I haven’t tested if the power supply can get rid of its heat. The fan is pointing downwards and there is not much room. I suggest adding feet to raise the printer a bit. Like these, but there is much available on Thingiverse as well. The orientation is this way due to the connections and to prevent 3D printing debris falling into the fan.

The video in which I add this mod to my Ender 3 in order to make it foldable

Print Settings

Printer: Creality Ender 3 pro
Rafts: No
Supports: Yes (10%)
Resolution: 0.2
Infill: 30%
Filament: Nylon CF

Notes:

I have used Nylon with carbon fiber because of the aesthetics, but PLA, PETG, ABS etc. should work as well. I have added the print orientation of the most complex part which requires a support structure (10% is enough).

Parts needed

7× M5×10-20mm bolts
An M5 tap to tap the holes at the end of the profile (the maximum length of the bolt is depending on how deep you tap the thread)
4× M4×8-10 bolts
2× M3×8 bolts
2× M3 inserts for the inserts version

If you use the version without inserts, I recommend tapping the M3 thread. The wall is very thin and you should probably use pliers to prevent cleaving. I haven’t tried this and please let me know if you experience any issues.

3 reviews for Ender 3 low profile power supply mod

Rated 5 out of 5

Djacco Van den Bosch (verified owner) – May 11, 2020

super nice and clean solution for the PSU on my ender 3 pro
Rated 5 out of 5

Ivan Hauptman Filho – July 24, 2020

Ótima solução para a fonte. Muito criativo;😀👍
Rated 5 out of 5

Eric Ugland – August 12, 2020

Just installed today and it worked great! Only problem I had was the cable cover plate was slightly smaller than the hole spacing of the threaded inserts on the main bracket. Holds fine with just one screw though. Everything else fit perfectly.
Overall really happy with this design, thanks for putting this out!