Prusa Core One 65W USB-C PSU Cover

This model lets you add a USB-C port to the PSU Cover of your Prusa Core One/+.

Print Settings

I used PETG 0.20mm Structural 15% grid infill

BOM

Tools:

• Crimper

• Soldering Iron + Solder

Materials

• 1x CKCS U1E Board (Amazon)

• 1x ATC Fuse Holder (Amazon)

• 1x Automotive Fuse (Amazon 4Amp Fuse)

  • Size the fuse up or down based on your own needs

• 2x M3x5mm screws

  • Slightly longer or shorter is fine

• 2x M2x5mm screws

  • Slightly longer or shorter is fine

• Some wire

  • I used red and black 22AWG wire

• 2x spade terminals

Assembly

Push the PCB into its shelf. The fit is tight so I tapped it with a hammer. The M3 screws hold the fuse holder in place. The M2 screws hold the board in place. Solder the connections as shown in the pictures. I found it easier to solder after assembling the components. Use a crimper to 

The Core One/+ PSU doesn't have any spare slots, so I just jammed them on top of the existing spaded terminals and screwed the terminals down tight. 

Disclaimer

There are no vent holes in this remixed version, so try not to draw too much power lest you damage the board or your PSU.

Info

The CKCS U1E Board Specs (from Amazon) are:

• Output power: 65W max (5V3A, 9V3A, 12V3A, 20V3.25A, etc.)；

• Designed to support PD3.1, QC3.0, SCP, and PPS fast charging protocols, ensuring compatibility with a wide range of devices.

• Output voltage: automatically adjusts between 3.3V~21V when connected to TYPE-C compatible powered devices (input voltage should be higher than output voltage, if you want to trigger 20V fast charging then input voltage should be higher than 20V)

  • Prusa's PSU outputs 24V @ 10A

• Input voltage: DC8~32V