Goose Belt Purger (GBP) – Automatic Belt Purge System for Voron Trident & 2.4 - NEMA14

Automatic filament purge tool for Voron/CoreXY printers The Goose Belt Purger is a compact, modular add-on for Voron-style printers that simplifies purging during tool changes. Ideal for multi-material setups or frequent filament swaps. Designed for reliability, easy integration, and minimal impact on print space.

Its purpose is to ensure your nozzle is properly purged and primed at the begining of your print and between filament changes (automatic or manual). Unlike other solutions it does not steal your valuable buildspace or produce bulky “poops”. Instead it creates clean sticks or pellets outside your bed. And it does so without any manual interaction, even for manual filament changes.

🔧 Features:

Simple design: just a stepper motor (in this MOD) – no servos, extra electronics, or firmware mods

Leaves behind clean, compact purges — no spaghetti, no blobs.

Compatible with filament swapping mods and with integration into AFC and Happy Hare

Small footprint, fast installation

Tested on Voron Trident and 2.4, adaptable to other CoreXY builds

You need a few parts from the Original :

- GBP_Idle

- GBP_Bearing_spacer

- Mounting

The Motor thats been used :

LDO-35STH28-1004A Please Look at :

for More info