Marswork filament spool system
A refillable spool that locks from the top instead of asking you to line up and twist two halves together.
Sold by Amazon.ca and AliExpress, not by Tej’s Lab. Price, stock, delivery and returns are theirs.




Marswork makes filament storage and spool refilling simpler, faster and more secure. It is built as an easier alternative to traditional refillable spool systems: two top locks hold the filament, so there is no aligning and rotating of two spool halves.
Two velcro straps hold older or partly used filament in place, which keeps loose ends under control and storage tidier. Whether you are loading a fresh refill or managing filament you have already opened, it gives you a spool that behaves predictably.
Simple to lock. Secure to store. Better for everyday printing.
- Fits
- Bambu Lab printers
- Locks
- Two top locks, no aligning and twisting two halves
- Holds
- Two velcro straps for part-used filament
- Sold by
- Amazon.ca and AliExpress, not by us
Layeraser is the kit Tej built for taking layer lines off a finished print and bringing the surface up to a mirror. That one we do make, stock and support.