I don't have much room around my P1P as im building it in a display cabinet and so set about creating a spool mount for the top of the frame which also allowed feeding from the front. This will easily hold 2x 1Kg spools aslong as it is printed correctly. Most standard 1Kg spools should fit, you may need to create a spacer for those with a large center bore to ensure clearance over cable chain. The design does not impede on any tool head clearances at the rear of the frame (Nightmare)

I printed the arm and load bar with adaptive layer height, 6 walls 40% cubic infill. Other pieces should be solid at 6 walls.

for maximum strength i recommend printing the arm on its side but with good layer adhesion the back of the arm should be fine.

PLEASE STRESS TEST YOUR ASSEMBLY HOLDS WELL BEFORE PLACING ANY SPOOLS ON IT!!!

Requirements:

• Minimum PETG for heat resistance
• PTFE Passthrough with cable chain - Should work with most existing designs but My design is confirmed
• Y Splitter - Any should work but i can confirm this design

Hardware:

• 2x M4x6x6 Heat Set Insert
• 2x M4x10 Bolts (Hex for easier install)
• 5x M10 PTFE Connector (3 for Y splitter)
• Glue (or melt with iron)
• PTFE tubing

Assembly:

1. Install M4 Insert into Arm under the hexagon
2. Install M4 Insert into Clamp
3. Locate and bolt Load Bar to Arm
4. Install M10 PTFE connectors into the 2x PTFE Holders
5. Glue PTFE holders into the top of the Arm base with the PTFE Conectors facing the rear
6. Place the arm on the back center of the frame locating the lip on the top edge first
7. Slide Clamp inside the frame lining up 2 notches at the front and bolt through frame
8. Install PTFE tubes & Y Splitter (I removed the floating screw from the original PTFE join)

Use photos for reference :)

ARC compatible version posted as a remix to the enclosure