# Reiten966/Polyformer

Polyformer is an open-source project that aims to recycle plastics into FDM filaments

Repository: https://github.com/Reiten966/Polyformer
Canonical: https://ross.abutalabs.com/products/polyformer
Homepage: https://www.reiten.design/polyformer
Language: G-code
License: GPL-3.0
License Family: copyleft
Last push: 2025-11-13T04:30:47+00:00

## Health v2 (maintenance only)
Score: 46/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 52, release rhythm 8, longevity 100
- inputs: {"age_days": 1586, "days_push": 293, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1158, forks 148 (observed 2026-08-28T04:03:48.420653+00:00)

## What it is
Polyformer is an open-source, 3D-printed machine that recycles PET plastic bottles into 1.75mm FDM filament for 3D printers. It is primarily a hardware design (build guides, firmware, and G-code) built from 3D-printed parts and common 3D printer components, certified by OSHWA.

## Use cases
- recycle PET water bottles into 3D printer filament
- build a DIY filament extruder from 3D printed parts
- turn plastic bottles into 1.75mm FDM filament
- make 3D printing filament at home from waste plastic
- build an open-source plastic recycling machine
- spool recycled filament for use on an FDM printer

## When to choose
- you want to recycle PET bottles into your own 3D printer filament
- you are a maker comfortable sourcing parts, printing parts, and assembling electronics
- you want a modular, open-source hardware design you can modify

## When to avoid
- you need a supported, actively maintained project (development ended in late 2025)
- you want a turnkey commercial product (it is build-it-yourself only)
- you are not comfortable working with high-voltage components and hot ends above 260C
- your 3D printer cannot print above 260C or has a PTFE-lined hotend

## Facets
- artifact type: application
- maturity: abandoned
- function: embedded, developer-tools
- domain: hardware, self-hosted
- platform: embedded, cross-platform
- tags: 3d-printing, recycling, filament-extruder, open-source-hardware, pet-bottles, gcode, oshwa, automation

## Member repositories
- Reiten966/Polyformer (main) score 46

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:48.420653+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:31:56.182110+00:00, confidence not recorded.
  - readme: https://github.com/Reiten966/Polyformer (fetched 2026-08-28T04:03:48.420653+00:00, sha 44b26bde8ff1)
  - homepage: https://www.reiten.design/polyformer (fetched 2026-08-29T12:36:40.597911+00:00, sha 991672612fde)
  - site_page: https://www.reiten.design/ (fetched 2026-08-29T12:36:40.606890+00:00, sha a0f48cf514fc)
  - site_page: https://www.reiten.design/polyformer/process (fetched 2026-08-29T12:36:40.608574+00:00, sha 69e45c8416c6)
- Data as of 2026-08-30T08:39:29.467469+00:00.