How to sand primed pine plywood bookshelves?
I assembled some 3/4 pine plywood bookshelves to incorporate into a builtin wall unit. The shelves are glued into dados. After priming them they are fairly rough, a little more than I expected. My question is, will sanding using a random orbit sander cause too much vibration and weaken either the dado joint or the ply-to-ply bond on each shelf?
I ask because the last time I tried to sand plywood with the same sander, it was 1/4" barn board siding on sawhorses (i.e. Not on a hard flat surface) and the plies were delaminating, from what I'm assuming was due to the vibration. I am afraid the bookshelves may do similar or weaken the dado.