Summary

I wanted to be able to feed filament from a filament dryer at the left side of my Ender 3 S1 printer. This design fits into the spool arm. It comes in two parts which push together. It can be glued if necessary but I didn't need to. The filament rails aren't very deep but I found it to be fine, with no danger of the filament popping out. The cross-brace pattern of the arm is visually consistency with the Ender 3 spool arm.

Note 1: this is only suitable for feeding filament from the left side of the printer.

Note 2: this is designed for the Ender 3 S1 model. I doubt it will fit any other model, except perhaps the S1 Pro.

I printed the arm with supports. The only places they are needed are the two grooves in the connector block. I used the 'lines' support pattern in Cura 5.1.0 and found the supports popped out easily and left a decent surface.

It's one of my first designs and I'm a 3d design / printing beginner, so apologies for any mistakes and happy to receive advice on how I could have done it better.

Print Settings

• Printer brand:

  Creality

• Printer:

  Ender 3

• Rafts:
  No
• Supports:
  Yes
• Resolution:
  0.2mm
• Infill:
  20%
• Filament brand:

  Sunlu / Anycubic

• Filament color:

  Black

• Filament material:

  PLA

How I Designed This

Designed in Fusion 360. The connector block was inspired by dropctune's Filler Mount (https://www.thingiverse.com/thing:5214494), although the modelling was my own.