The 3D printer extruder with quick-swappable hotends.
Last updated on June 28th, 2022.
This project is older and not under development anymore.
The last version of this project was in Beta stage, accessible to my Patreon supporters.
Due to the extruder layout, printers require frame changes in order to use the full build volume.
For the far future I intend to switch to a custom printer frame for the extruder and support for the printers above will be very limited.
Several hotends are supported already:
No runout sensor integrated in the extruder (can still use a filament sensor mounted on the frame). I might add support for a runout sensor at some point.
This extruder uses a full size motor (not geared) which makes it heavy compared to some other extruders. This aspect will be addressed with the future PitStop 3.
Due to the flat back mounting, compatibility requirements for the EngineSwap, and full size motor, there’s a significant nozzle offset compared to other extruders, further away from the carriage. This means that printer frames need to be altered in order to use the entire build volume, and motion problems can be amplified by this offset. These will be addressed in a future version.
This extruder is not backwards compatible with PitStop 1, and PitStop 3 will likely not be compatible with PitStop 2, requiring further frame adjustments.
PitStop 2 is a 3D printer extruder designed from scratch, featuring quick-swappable hotends. It’s part of the larger EngineSwap project that makes automatic hotend swapping for affordable multi-material printing without the typical waste. It also aims at hotend management and is designed to integrate with may 3D printer models. While the EngineSwap project is nowhere near completion, it is under active development and I designed the PitStop 2 extruder specifically for it. Many 3D printing enthusiasts have shown interest in the PitStop 2 as a standalone extruder due to its ease of swapping hotends and therefore nozzles, reason why I’m releasing it. The project is NOT under active development as I'm already working on a newer design. I’m the sole developer of the project.