Bambu A1 Quick-Swap Filament Guide

Upgrade your Bambu A1 with this custom filament guide, designed for use with a “Poor Man’s AMS” setup! By combining this guide with Arzhang Lotfi’s ingenious swap system (see link below), you can easily switch between two filaments and achieve a quick DIY multi-material experience—all with just a PTFE tube and a 3D-printed part. No special connectors required! Added a print profile for a remix if you want to use on both sides.

This guide works perfectly with the modular InfinityClamp system for added versatility if you are using a filament dryer!

Check out the Poor Man’s AMS here: https://makerworld.com/en/models/822710#profileId-765972

To get started, grab the InfinityClamp Base here: https://makerworld.com/en/models/1045532#profileId-1031278
And the Filament Guide Attachment here: https://makerworld.com/en/models/1045642#profileId-1031418

Assembly Instructions

1. Remove supports. Clean off all support material from the printed parts.
2. Connect the guide’s neck and head. They should fit snugly together.
3. Insert the PTFE tube. Push the tube into the larger-diameter part on the guide’s head.
4. Measure and cut the PTFE tube. Make sure it’s the right length for your specific setup.
5. Attach the guide. Place it onto the filament holder in the orientation shown in the reference photos.

Using the MMS

1. Unload the first filament. Use the printer’s settings to unload. Once the filament is released, push it up slightly.
2. Load the second filament. Insert your second filament and use the printer’s loading function.

With just a quick swap, you can smoothly transition between filaments—perfect for switching colors or materials on the fly!