About this 3D model
Airtight cap to close off the end of a PTFE tube coming from a drybox. Has space for the filament to extend into, so it doesn't get pushed back into the PTFE when capped. Designed for 4mm OD x 3mm ID tubes. Print with TPU filament. Try my improved Version #2: Bowden Tube Cap for 4mm OD PTFE Tube V2