but one step forward, two back.
Just touches the sprocket. After cutting the disc, I noticed how it looked like a CD. Then I had the idea to use the clear protection disc on top of a new CD pack. But of course, I threw them all away after opening.

Probably wouldn't work anyway as they might be too brittle. I'll try to pick up some 1/8" or even 1/16" material this weekend to keep going.