Customizable eSun eBox to Filament Tube Coupler

thingiverse

This item allows for attaching filament tubing to your eSun eBox Filament Storage Dry Box. It has been thoroughly tested with 1.75mm filament and may also work with 2.85mm filament. All connections are push-fit. You can attach the item so that the filament exits either diagonally up or down. Simply push it into place using the bottom shell or the top shell. Customizer settings include: 1. tube_od - The outer diameter of your filament tube - Add some extra space if needed (suggest 0.05mm) 2. channel_d - The diameter of the filament channel - Note that the bridge's narrowest point is 5mm, so there is limited space! - Setting this to 3.1mm will allow for 3 lines when sliced with an extrusion width of 0.45mm 3. coupler_ln - The length of the coupling 4. back_lip - How far the back plate sticks out - This helps hold the lid closed - If set too long, it may interfere with lid closure You can use LLDPE John Guest tubing (filter system tubing). In my tests, I found that filaments tend to stick to 1/4" LLDPE John Guest tubing (~1m length), causing extruder skips at speeds > 8mm/s (volumetric rate > 20mm³/s). 3/8" tubing may work here, but LLDPE likely loves PETG filament too much. If you have an MK2.5/MK3, you might find this useful: https://www.thingiverse.com/thing:2959148