As for drill life for those who do use a drill for rotary sanding and make a lot of dust: I read in another forum a long time ago that life of the motor can be greatly increased by blowing the dust out of the inside with compressed air after every use.
I have an angled (not right angled) Milwaukee close quarters drill in the drawer, unused for sanding now. I strongly disliked the clouds of dust and some bad things it can do to the wood. I'd give the drill away except I occasionally use it for [gasp!] drilling in tight places.
I strongly agree with sanding less. And it doesn't take any magical skill or years of experience. There's another way.
Instead of rotary sanding bowls and platters with sanding disks I do 5 things:
- Final cut as close to the desired shape as as possible, but doesn't have to be perfect. Practice helps. To practice, start making practice "final" cuts before reaching the final desired depth/shape, removing only very little wood on each pass. When it's finally time to make the "final" final cut, the eyes and hands and arms have lots of practice.
- Remove gouge marks and further refine the surface with sharp curved negative rake scrapers with a nicely burnished burr.
- Remove the piece from the lathe if possible and further smooth with hand-held curved scraper, most I make myself but some can be purchased. Scrape downhill, of course, and with the grain or at a slight angle to the grain direction, what ever works for that piece. Pay special attention to perfecting the often neglected curve at the center. Curved hand scrapers are a game-changer.
- Sand with fine paper on a pneumatic random orbital sander turned down to a VERY low speed. Usually no coarser than 400 grit is needed to start. If no ROS, sand by hand with sandpaper backed up with a soft eraser.
- Finish sand as needed with fine paper (held by hand), usually backed up with a soft eraser.
In demos I usually stop after the NRS and divide the piece into sections. Two sections get the hand scraping. One section gets hand sanded
I taught this technique to others. A student with less than two years turning experience used it with beautiful results on the first piece.
I really don't expect anyone else to quit the way were taught and start working this way
unless they try it in person and see and feel the result.
Me? It works so well I simply can't work any other way. Maybe I should do a video.
I know I've posted all this before but I'm a believer and can't make myself stop.
The curved NRS removing gouge tool marks. It's like magic.
View attachment 69714 View attachment 69713
A hand scraper removing NRS marks.
View attachment 69711
Sand paper to remove any scraper marks, wrapped around what I call a "soft sanding block"
View attachment 69710
JKJ