PET Filament Maker
2026-ongoing | DFAB | Mod
This project is a Kingroon KP3S-optimized version of the Recreator 3D, a pultrusion-type PET filament maker, designed to maximize the reuse of original parts. It simplifies the build by using a minimalist hardware setup controlled by a basic G-code script that only manages heat and a single puller motor. The goal is to provide an easy-to-build recycling solution that maximizes the utility of existing KP3S components.
Design
The goals of this design are: to use only 3D-printed parts or parts sourced from KP3S, and to improve portability by minimizing the footprint.
| Things to do | Note | Priority | Progress |
|---|---|---|---|
| Reducing gears | 25 : 1 double helical gears | A | Done |
| Base bracket | All integrated | A | Working |
| Hotend and fan bracket | Metal bracket attached to the aluminum frame, heat isolation strategy… | A | Not started |
| Winding wheel | Use KP3S wheels? | B | Working |
| Hotend expansion | Little reamer | B | Not started |
| Spool filament attachment | Thread attached with a bolt | B | Not started |
| Main board and display enclosure | Bottom of the spool | B | Not started |
| Winding mechanism | Diamond thread or sector gear | C | Not implemented |
Build steps:
- Disassembling the Kingroon KP3S
- Testing the disassembled parts such as the main board, motors, hotend and fans
- Dismantling the hotend: To remove the heatbreak (threaded tube) from the heatsink, I used the double-nut method by tightening two nuts against each other and loosening them together with two wrenches while holding the heatbreak with pliers (Reference).
- Testing the disassembled parts such as the main board, motors, hotend and fans
- Enlarging the nozzle to a dia. 1.75 mm
- Using a drilling machine with dia. 1.5 mm drill, the nozzle was enlarged until a 1.75 mm filament ld pass through it
- Using a drilling machine with dia. 1.5 mm drill, the nozzle was enlarged until a 1.75 mm filament ld pass through it
- 3D printing and assembling
Work in progress…