Rafts are a short layers of filament that are sometimes printed before the print job itself so that the job doesn’t detach from the 3D printer’s bed and “warp”. After the print has completed, the raft is removed and is pretty much useless. There are usually several discarded rafts around Kwartzlab’s 3D printers.
The discarded rafts are nearly perfectly even, sturdy yet thin, grids, which reminded me of the big plastic canvases I used to work with as a kid. I attempted to cross-stitch one, and here’s the result:
Here I’m using 3 strands of floss and a 0.7 mm needle. I think it worked out pretty well. A few grids are obstructed by a stray piece of filament, but it’s hard to tell where in the finished piece.
So next time your print job produces a large piece of grid material, consider holding on to it for the cross-stitchers in your life.