This is an experimental, work‑in‑progress upgrade project for the original i3 Berlin.
- Some parts and files are unfinished or untested; print and use at your own risk.
Only found in your local makerspace in Berlin-Friedrichshain!
- Frame and motion: Original i3 Berlin mainframe combined with MK4 Y-carriage, MK52 heatbed, and upgraded MK3S X/Y axis parts
- Electronics: 24V, BTT Octopus V1.1 mainboard & Raspberry Pi 3B
- Display: BTT TFT24 touch screen
case-octopus/– SolidWorks models for the Octopus mainboard enclosure and mounts (current, recommended electronics case).case-trigorilla/– Legacy case for the original TriGorilla-based electronics; kept for reference, not maintained.extruder/2in1out-yhead/– First two‑in‑one‑out hotend design using a cheap AliExpress head, waste of money and development time.extruder/2in1out-cyclops/– Second & current design using an E3D Cyclops Plus color‑mixing hotend; mechanical design finished, not yet tested.firmware/Marlin/– Legacy Marlin configuration from the early phase with the stock LCD &extruder/2in1out-yhead/screen-tft24-v1.1/– TFT24 display housing and mounts.
CAD render:
Real prints:
Cyclops+ setup (CAD vs real machine):
Y-head 2-in-1-out prototype (CAD):
- Finish Moonraker setup
- Design and build final high-temp/high-flow extruder
- v1 – 2in1out-yhead: Cheap AliExpress two‑in‑one‑out hotend; design kept for history, not recommended for use.
- v2 – 2in1out-cyclops: E3D Cyclops Plus color‑mixing setup; mechanically complete but untested in real printing.
- v3 – high-temp/high-flow (planned): Future single‑nozzle design targeting up to ~500 °C for higher‑temperature and more demanding materials in our 3dlab