I cut the grooves using a router on a router table. It's pretty foolproof and I ran multiple tests on scrap wood but I still messed up once. I hadn't tightened down the fence enough and it slipped when I was cutting and so one groove was a little crooked.
I was SO sad and convinced that I had ruined a whole box but my instructor said it would be okay and then I realized that it would. Phew! (Some minor mistake like this usually happens at least once during every project of mine.)Labels: projects, woodworking