Neptune 3 Pro front cover + 5V PSU mount + USB & Ethernet Port

UPDATES

• 2025.09.01:
  • Added N3P_Front Panel_Wiring Mounting Bracket.
  • Added N3P_Front Panel_Left_PSU and Ports.
  • Adjusted model description.

INFO

An extended front cover for the Neptune 3 Pro. It might also be compatible with the 4/4 Pro but I have no way of testing this.
It's a two part print and is held together with connector pieces. It mounts to the frame at 3 points using the original screws.

The extended bottom panel with more cooling:

https://www.printables.com/model/1284064-neptune-3-pro-bottom-panel-for-extended-electronic 

Variants:

• N3P_Front Panel_Left / N3P_Front Panel_Right
  The normal version of the extended front panel with extra electronics space and mounting points.
   
• N3P_Front Panel_Left_ PSU and Ports
  A version of the left half of the front panel which includes mounting points for port extender cables (plug into your Raspberry Pi and relocate the port to the side of your printer) and a small 5V power supply. The PSU can be used to power a Pi other other stuff. I use it to power the port at the back of the printer with 5V so I can plug a 5V LED lamp into it.
  Here are the USB and the ethernet extender as well as the PSU (5V 6A version) I used.

Brackets:

• N3P_Front Panel_Wiring Mounting Bracket
  A simple bracket with mounting points for zip ties.

Decorative Panels:

• N3P_Front Panel_Decorative Panel_Hex
  Simple decorative panel with a hexagon pattern

Compatability and potential upgrades:

• The extra mounting holes on the sides of the front panel can be used to mount other things like a screen. The mounting holes for the decorative panels can also be used to mount screens or similar add-ons.
   
• More decorative panels may be added in the future.

REQUIRED HARDWARE

Mounting hardware:

• Original screws for mounting the front panel (x5)
  The four big ones visible from the front and the small one in the electronics bay.
  
  
   
• M3 x 6 screws (x 8) used to connect the two halfs with the connector pieces
   
• M3 x 5(w) x 4(l) threaded inserts (x 8) used to connect the two halfs with the connector pieces 
   
• N3P_Front Panel_Connector (x4)

Extra hardware for the N3P_Front Panel_Left_PSU and Ports part:

• M3 x 8mm screws (x4) used to mount the port extensions to the front panel (these should come with the extensions)
   
• M3 x 8mm screws (x2) used to mount the PSU to the front panel
   
• M3 nuts (x2) used to mount the PSU to the front panel

Hardware for decoration panels:

• M3 x 6 screws (x 6)
   
• M3 x 5(w) x 4(l) threaded inserts (x 6)
   
• Decoration panels (x 6)

Hardware for already existing mounting brackets:

• N3P_Front Panel_Wiring Mounting Bracket
  • M3 x 5(w) x 4(l) threaded inserts (x4)
  • M3 x 6mm screws (x4)

Hardware for new (self-designed) mounting brackets:

• M3 x 5(w) x 4(l) threaded inserts 
   
• M3 screws

The amount and length depends on the hardware you're installing.

These mounting points have constant distance and are used to mount your own mounting brackets for the hardware you want to install. They will have to be designed by you, I may or may not add some brackets in the future. It depends on what I'll be upgrading on mine.