S1 Filament Cutter

The cutter is designed to automatically cut off bent filament ends, taped ends, glue residue, tangled sections, and any other deformities that would jam the S1 inlet. If the obstruction creates enough resistance when entering the tube, it gets cut before it can cause a failure.

Yes — if a tangle creates enough resistance as it feeds in, the cutter will slice off the jammed section before it can reach the S1. It’s designed to stop reloads from failing due to tight coils or crossed lines near the spool end.

It’s purely mechanical. When a bend or obstructed filament end hits the inlet of the cutter tube, the tension causes it to get sliced off before entering the S1. No sensors, no electronics.

It installs in under 2 minutes with no tools. Just remove the inlet tube, slide the mount on, and reinsert the tube to lock it in place.

No — the S1 works without it. But if you’ve ever had reloads fail due to bent, taped, or tangled filament ends, this cutter will prevent those failures automatically.

Yes — while it’s designed for the Infinity Flow S1, you can adapt it to other printers or AMS-style systems using a custom mount. Just make sure the inlet tube of the cutter is long enough to reach the obstruction (like a bent or taped filament end). The cutter works by catching the obstruction as it enters the tube and pulling it down into the blade. If the jam happens before reaching the cutter, it won’t trigger the cut.

Only 100 sets are being released in this beta batch. Once they’re gone, they’re gone — until the full production run.

The cutter has been tested for over 3,000 hours on our own print farm, but this is the first time it’s being used on customer setups. We’re calling it a beta so we can get early feedback before a full release. It’s fully functional — just not field-tested on every setup yet.