1. Marked top skin for dimpling. (I'm not going to dimple the holes along the sides until I match-drill them with the underlying structure.) 2.. Since it hasn't been used in a long time, I had to do some repairs to my dimpling table, which took some abuse while it was in storage. I cut several lengths of 2x4s and screwed them to the bottom of the table to replace the ones that somehow disappeared. I also cleaned and lubricated the C-frame dimpler, then installed it into the table.