ProtoNaut is a custom-designed 3D printer. Built using 2020 aluminum extrusions, linear rails, and NEMA 17 stepper motors, this printer aims to deliver reliable performance in a compact cantilever design while maintaining a budget-ish build cost of approximately $400.
The project utilizes Klipper for motion control, running on an Orange Pi Zero 3 with a BIGTREETECH SKR PICO controller. The design tries to achieve precision, ease of assembly, and fully open-source design through FreeCAD CAD files.
Build — click to expand
TBD
- Cantilever Design
- Magnetic PEI Bed
- Automatic Bed Leveling using the BTT EDDY
- Klipper firmware
- 150x150mm Build Volume
Estimated Total Cost: €344.04 (~$396.46 USD)
- Build Volume: 150mm x 150mm
- Bed Type: Heated magnetic adhesion surface
- Motion System: Linear rail guided on all axes
- Nozzle Type: 0.4mm standard
- Control Board: BIGTREETECH SKR PICO
- Host Controller: Orange Pi Zero 3 (1GB RAM)
- Firmware: Klipper with Mainsail/Fluidd interface
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

