I've done a couple of projects with woods that have pronounced different hardnesses between the early wood and the late wood, and I'm getting ridges after sanding--with the lighter colored wood (generally the early wood) having valleys and the late wood having ridges.
I'm power sanding after the final cut with a gouge and a couple of passes with a scraper to take away bumps. I'm not good enough with my fingers to feel what grit to start sanding with, so I generally start with a fairly rough grit (120, 150), unless I have tearout.
Power sanding is with a 2 1/2" disk on medium-firm pad, and when I get to the 200's, I switch to a softer pad. I stop the lathe and do several hand-strokes (sandpaper disk in my hand) with the grain before switching to the next grit level.
While my end product looks good, I can feel distinct ridges which were not there before sanding. This is especially pronounced in pine and fir, but no ridges in maple.
Suggestions greatly appreciated...
I'm power sanding after the final cut with a gouge and a couple of passes with a scraper to take away bumps. I'm not good enough with my fingers to feel what grit to start sanding with, so I generally start with a fairly rough grit (120, 150), unless I have tearout.
Power sanding is with a 2 1/2" disk on medium-firm pad, and when I get to the 200's, I switch to a softer pad. I stop the lathe and do several hand-strokes (sandpaper disk in my hand) with the grain before switching to the next grit level.
While my end product looks good, I can feel distinct ridges which were not there before sanding. This is especially pronounced in pine and fir, but no ridges in maple.
Suggestions greatly appreciated...