Join Date: Sep 2007
Location: Baxter, Tennessee
If your having problems with tearout, that is a cutting problem. Try to slow down your feed rate of the tool, use a freshly sharpened tool, and sometimes putting a quick coat of wax on before the last pass of the tool will help also. I use Johnson's past wax. Also try to cut downhill with the grain. On turned pieces with swirly grain this isn't always possible.
If you still get tearout, and it happens to the best of us on some woods, the the trick is to start with a course enough paper. If your having to really sand an area to get rid our tearout use courser paper. Also a slow speed of the bowl or box will help. sometimes the piece warps slightly out of round and if the tearout is in a low part, sanding with the bowl at high speed will simply let the sandpaper skip over the low spot.
Heat cracks are caused by sanding at too high a speed. Sanding with wax helps the sandpaper work more efficiently but I've had problems with the sandpaper clogging I don't do this often.