Side-entry filament guide

SummaryI 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 SettingsPrinter brand:CrealityPrinter:Ender 3Rafts:NoSupports:YesResolution:0.2mmInfill:20%Filament brand:Sunlu / AnycubicFilament color:BlackFilament material:PLAHow I Designed ThisDesigned 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.