After my last project, I put a new blade in my rotary cutter. I usually hold it together as I put in the new blade but this time dropped everything.
I just started a new project and the blade wasn't cutting very well. I finally decided to suck it up and put in a new blade.
Just for kicks, I took out another cutter. I then realized that when I'd picked up the pieces, I'd put the large knob and it's washer and nut on backwards. Duh!