SnapmakerU1-Extended-Firmware

SnapmakerU1-Extended-Firmware is a community firmware for the Snapmaker U1, a four-toolhead 3D printer, that opens up the stock system into a Klipper setup you actually control. You get a choice of Fluidd or Mainsail web dashboards, WebRTC camera streaming, a remote view of the touchscreen, Spoolman filament tracking with RFID tags, and SSH. It's free under GPLv3.

Installing it works like a stock update: copy the .bin to a FAT32 USB stick and pick Local Update on the printer. Reverting is the same with Snapmaker's official file. Release images are built by GitHub Actions from Snapmaker's own firmware, checked against a pinned SHA-256, with checksums in every release. That's about as clean as custom firmware gets. Snapmaker gave it a first prize in its Innovation Fund this month. Solo makers to print farms: free. Optional add-ons like Tailscale and OctoEverywhere download on demand and carry their own pricing.

The catch: installing it doesn't void the warranty, but Snapmaker won't cover damage it causes, and the Max Speed tweak pushes motion limits past stock. SSH ships with the root password snapmaker, so change it. And reproduce every bug on stock firmware before reporting it.