This part is probably unnecessary. I’m not sanding down the surface of the wood parts because it is so thin the veneer would probably come right off.
However, there are some small tabs throughout the pieces where they were once attached to larger parts. I’d rather do it now than after painting and then have to paint the sanded parts over again.
[...] for sanding down punch-out-nubs and leveling off plastic parts so they’ll fit. Based upon my enormous background in robot [...]