The first step was gluing the kerfing to the rim. I made a bunch of rubber banded clothes pins and used my chisels to carve out a notch to support the angle of the kerfing. Gluing the kerfing was painless and it went in well. I used a sanding stick (flat stick longer than the mandolin body with sandpaper on one end) to sand all the kerfing flush with the rim. I penciled the rim all the way around to know when the kerfing was flush. I made sure to return the cardboard inside form and built a cardboard outside form to keep the rim set correct.