Brief Description: Scour, wash, and prime rib parts
1. I completed scouring the joint lines on the small rib parts with ScotchBrite. A chance exchange of email with Larye Parkins, EAA 517, got me thinking of ways to mechanize as many building steps as possible. Often times the key is to find an secure way to hold a part while using a power tool on it. I was able to use a drill and ScotchBrite disk on the cover plates as shown in Fig. 1. I clamped the cover plate to a piece of plywood that was, in turn, clamped to the work table. The power scouring is messy, but is about 4 x faster, requires about 1/10 the labor, and does a better job than manual scouring.
2. Washed the joint lines with a MEK saturated paper towel.