Lightweight Rotational Bowden - Alchemical Printers

Flexible bowden system designed to fit almost anywhere, while providing rotational movement to support the shortest bowden assemblies possible.

Join the community discussion, get assistance, or even show off your mods! You can also follow the design process of an all new 3D printer design to be released worldwide upon completion!

DISCORD: https://discord.gg/aE49DW2xXe

If you wish to see the original CAD files or otherwise take a look at one of my projects, here is my Github.

GITHUB: https://github.com/AlchemicalPrinters/BETA_Alchemy_Rotational_Bowden/blob/main/README.md

!!!! PLEASE READ THESE NOTES PRIOR TO CONTINUING WITH YOUR BUILD !!!!

A) This assembly comes in relatively close conditions to a heated bed and stepper motor. I will not support issues due to using materials such as PLA to build the assembly. PLA and similar materials are NOT suitable to build 3D printer parts out of, please do not ask if PLA is ok, it is not. If you are going to use PETG for the build, please keep an eye on the motor mount area and consider reducing current to your motor. Steppers produce heat and PETG (while better than PLA) still has a lower TG point, it could warp.

B) THIS IS A BETA RELEASE AND NOT THE FINAL PRODUCT, YOU ARE RESPONSIBLE FOR YOUR SAFETY AND EQUIPMENT WHEN BUILDING AND USING THIS SYSTEM AND YOU ACCEPT ALL LIABILITY BY USING THESE FILES FROM THIS BETA TO RELEASE CANDIDATES AND POST!

This is the first rendition of the Alchemy_Mini_Bowden. This system's initial design is based on the Voron Jetpack concept. 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 tube as well as the developers intended. This being paired with the popularity of the Afterburner and Stealthburner toolheads kinda left the Jetpack in a hard place.

The goal of this project is to remedy the failings and provide an ultra lightweight but powerful extruder which rides the X gantry while 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 hotend by providing a direct route, while also being mounted in the closest possible position to all locations as the toolhead 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, thats 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.

Once this product leaves beta, along with the additional variations, scheduled is an entire 3D printer based on the principles these units bring.

B.O.M.

Note: I am working with suppliers to distribute individual qty purchases, this early in project though some of these are multipacks.

Note: This is the bare minimum, it is wise to have spare screws/heatsets etc.)

QTY - 8 - M3x5x4 Heatsets (Be sure to get angled exterior texture, not straight)
QTY - 4 - MR115-2RS Bearing
QTY - 1 - Thrust Bearing 5mm ID
QTY - 2 - M3x16 SHCS (Socket Head Cap Screw)
QTY - 4 - M3x20 SHCS (Socket Head Cap Screw)
QTY - 1 - BondTech BMG Extruder Internals Kit (Some clones have the correct components for this build internally)
QTY - 1 - Nema 14 High Temp Stepper Motor

Highly Recommended Item Below

QTY - 1 - Threadlocker (For BMG grub screw)

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