Prusa mk3s+ printer status

posted 2025-07-05 (updated 2025-07-07)

started life maybe as an mk2 with an mk3 and mk3s+ upgrade kits?

Next steps:

• mmu2s -> mmu3 or ultimulti

as of 2025-05-07:

• mk3s+
  • except the extruder body is different and I can't find out why
    • reprinting to fix
• mmu2s, non-working

power distribution

Power rails from left to right:

• 24V from PSU
• GND
• GND II: more ground
• switched 24V, controlled by that relay in the middle of the picture by octoprint

That usb port sneaking out on the right side is 5v off the switched 24v rail to run lights because the light strip I found was 5V with a usb connector.

MMU

As of right now, it doesn't work because of the design flaw with the 5V rail, but aside from that it didn't always load properly. It's mounted with a relocate thing that I didn't write down the source of so it's easier to work on.

M10 bowden tube connectors from unknown source: M10PassthroughPLate_v15.stl

input cable situation

There is a single ethernet/power connector location now: I didn't plan for clearance of the ethernet from the bed, so the quarter inch bit provides enough of a shim to make it clear safely.

octoprint

rpi4 with a breakout I made.

I don't have the power button hooked up because I don't want to cad a real button panel, you can see the relay switch zip tied to the top of the z axis.

camera mount unknown source:

• Prusa_I3_MK3_Camera_Mount_x_axis_v12.stl
• Raspberry_Camera_case_back_v1.stl
• Raspberry_Camera_case_front_v1.stl

filament box

Using the Ikea Samla 45l Filament Buffering Dry Box V2 by Canislupus.

I need to reglue the lid snaps.

Misc

bolt on stuff

• long_mount_bottom.stl
• long_mount_top.stl
• short_mount_bottom.stl
• short_mount_top.stl
• PC4-M10 adapter.stl

better knob: lcd-knob.stl