Filament 18mm wall feedthrough with M6 PTFE couplings
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Filament wall feed-through through an enclosure (e.g. IKEA Platsa) with M6 thread on both sides for PTFE coupling
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To guide the filament from the dry box into the self-built enclosure (IKEA Platsa) of my Prusa Mini, I developed this wall feed-through. It can be inserted into a drill hole from both sides and screwed together. Two PTFE couplings with an M6 thread can be screwed in afterwards to attach a PFTE tube on both sides and easily guide the filament through the enclosure wall.
- Wall thickness: 18mm
- Screw hole diameter: 16mm
- Filament diameter: 1.75mm
To learn more about the IKEA Platsa enclosure, check out padigree's amazing instructions including all the printable parts.
Assembly instruction
- Print both parts
- Drill a 16mm diameter hole through the housing wall
- Insert the bottom part of the printed wall feedthrough into the hole
- Screw the top part of the printed wall feedthrough from the other side to the bottom part
- Insert a 28mm long PTFE tube into a PTFE coupling with an M6 thread and screw the coupling into the wall feedthrough.
- Screw a second PTFE coupling with an M6 thread on the other side of the wall feedthrough
- Connect a PTFE tube to both couplings
Print instructions
- No supports needed
- PETG (it can get warm in the housing, which is why PLA is less useful)
- Layer height: 0.15mm
Accessories
- M6 coupling for Bowden extruder 1.75mm continuous (e.g. https://www.3dware.ch/M6-Kupplung-f%C3%BCr-Bowden-Extruder-1.75mm-durchgehend-De.htm)
- PTFE tube 28mm long
- 2 PTFE tubes to connect on both sides