Alchemy_Rotational_Bowden

This is the first rendition of the Alchemy_Mini_Bowden. During discussions the main VORON discord in the Jetpack support area, it became apparent the system was not popular as it did not achieve shortening the bowden as well as the developers intended. This being paired with the popularity of the Afterburner and Stealthburner tool-heads kinda left the Jetpack in a hard place.

The goal of this project is to remedy its failings and provide an ultra lightweight but powerful extruder to ride the X gantry, also being able to rotate allowing the shortest bowden tube possible. The rotation removes the need for additional large bending radius turns to get to the hot-end by providing a direct route, while also being mounted in the closest possible position to all locations the tool-head moves on gantry.  In the initial testing of this unit, it was able to achieve a Bowden length approximately 10", considering the stock tube is near 20" long, that is an improvement of basically 50%. This is where we can say the project has been able to carry the Jetpacks original concept across the finish line.

Mount this extruder in the rear middle of your X gantry behind the tool-head.  Position it so the bowden PTFE tube is equal in length when reaching both sides of where the printers hot-end can be during operation.   The extruder will rotate left and right following the hot-end using the bowden PTFE tube as a leash reducing the need for longer filament paths.

You can follow development of this project and find the BOM on my Github, or my discord.  If you need assistance please join the community discord.  Otherwise, you can also follow a project creating an all new 3D printer to be open source released at a future date.

Github: (Get BOM and STEP files here)

https://github.com/AlchemicalPrinters/BETA_Alchemy_Rotational_Bowden

Discord: (Get support or follow the development of an all new 3D printer here)

https://discord.gg/aE49DW2xXe

PRINT SETTINGS

Materials - ABS/ASA (Note: The parts are designed accounting for shrinkage of ASA & ABS, other filament types may or may not work.)

Layer Height - 0.20

Extrusion Width - Forced 0.4m

Infil Percentage - 40%+

Infil Type - Grid, Honeycomb, Triangle, or Cubic

Top/Bottom Wall Count - 4

Perimeter Count - 4