The goal
Build a more consistent filament-handling workflow, with controlled paths and an automated sequence for swapping, purging and resuming a print.
What I built
I assembled the spool and feed system, keeping filament paths consistent to reduce snags. I added automation macros for the change sequence and iterated on the printed parts, alignment, friction and cable management.
The main task was to make each stage predictable. A reliable macro still depends on the filament arriving in the right place with a manageable amount of resistance.
Integration and next steps
The feed system is built. Adapting it to the Ender 3 V3 SE is a separate ongoing step, including evaluating a filament cutter at the toolhead. I have kept that planned integration separate from the completed mechanical build.
What I learned
Access for maintenance matters as much as a compact arrangement. Keeping the filament path visible and the wear parts reachable makes it easier to diagnose a failed change and improve the next iteration.