Powermatic 3520A Lathe User Manual


 
16
SANDING AND FINISHING:
1. Remove the toolrest and adjust lathe speed to approximately 500 RPM. High speed can build friction while
sanding and cause heat check in some woods.
2. Begin with fine sandpaper (120 grit) and progress through each grit, using only light pressure. Coarser
sandpaper tends to leave deep scratches that are hard to eliminate. Use power-sanding techniques to avoid
concentric sanding marks around your finished piece. Avoid rounding over the rim and foot with sandpaper; try to
keep details crisp. Finish sanding with 220 grit.
3. Remove sanding dust with tack rags or compressed air and, with lathe turned off, apply first coat of finish. Let
stand for several minutes, wipe off excess. Allow to dry before sanding again with 320 or 400 grit sandpaper.
4. Turn lathe back on and continue the separation cut almost all the way through the base. Stop at about 3" and
use a small fine tooth saw to separate the bowl from the waste.
5. Apply second finish coat and allow to dry before buffing.