Filament Joiner with PTFE Tube
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Connect two pieces of filament with this Filament Joiner and a heat source of your choice.
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Public Domain
Filament Joiner
For filament with a diameter of 1.75mm. It also works wih homemade pultrusion filament.
Build Instructions
What you need
- 6x M3 Heat Inserts
- 4x M3x14 Screws (longer screws will work as well)
- 2x M3x6 Screws (Also here, longer screws will work just fine, )
- PTFE-Tube with a length between 44mm and 34mm (A shorter piece might also work, but is just held by one single screw)
- [Optional] 4x M3 washer.
- Heat source (e.g. soldring iron)
How to build it
- Print both parts
- Insert the heat inserts into the holes. The chamfer on the hole indicates from which side the inserts should be introduced.
- Put the two halves together with the PTFE tube in the middle.
- Insert the M3x14 screws to hold the two halves together. The screw head needs to be on the side without heat insert.
- Insert the M3x6 screws, to hold the PTFE tube in place.
How to use it
You need a heat source of any kind. I use a soldering iron, but some people on youtube seems to be doing great with just a candle. Keep in mind, burn injuries are no joke and heat sources often times come with a fire hazard. So use your new gadget with care and take all the necessary precautions to minimize the risks.
After that, the process is simple enough.
- Put the two filament ends into the joiner
- Heat up the ends until they start to melt.
- Press the two ends together
- Silde the (still warm and soft) joint through the PTFE tube
With a quick search on youtube, you will find some demonstrations and explanations of the process.