Bowden Adaptor Threaded Conversion

thingiverse

I found taking apart the Bowden adapter to be relatively simple, but reassembling it was a different story altogether - the plastic components and PTFE suffered irreparable damage in the process. Initially, I attempted to create a tool specifically designed for removing the black clip, but unfortunately, my first attempt at this - made from ABS - proved too weak for the task. Next, I considered lengthening the black clip itself, yet even that seemed unlikely to prevent breakage. My next idea was to fabricate a slotted coupling, which would allow me to twist and release the adapter. However, lacking the necessary facilities, this option ultimately fell by the wayside. In the end, I resorted to threading the adapter using an M14x1 tap for the 3mm adapter - accompanied by a silicon ring to secure the tube, which stood at 3mm thick. In contrast, the 1.75mm adapter would necessitate the use of a M10 x 1.5mm tap, paired with a M10 x 16mm mild steel bolt featuring a centre drilled section and possibly some 2mm silicon or flexible filament as a seal. The adapters themselves boast a 13mm opening for the 3mm variant, while the 1.75mm adapter's opening measures 8mm in diameter. Given that the outside diameter is 16mm, I opted for a fine thread on the 3mm adapter to achieve optimal results. As it happens, all of these items are included. The twist connector may prove particularly useful for individuals with access to a CNC machine.