I've got a whole house full of cherry trim to install and so bought a Supermax drum sander to help ease the endless hours of sanding. It is giving me conniptions because the boards slip on the belt, producing divots in the boards. This is not snipe, it can happen anywhere along the board. Here's what I know:
-- The transit belt is new
-- The belt is not slipping, the board stops and the belt keeps moving.
-- sanding depth is ~1/64th inch with 60 grit bit. (I can turn the drum by hand against the wood)
-- less depth (less down pressure) gives more frequent, but less severe slipping and divots
-- have adjusted feed rollers, per instructions
-- drum is parallel to the deck, sanding is even across the width
-- feed roller pressure adjustment has no apparent effect
-- in and outfeed tables appear to be adjusted correctly
Apparently people use these things successfully all the time, so I must be missing something obvious in terms either of adjustment or technique. Any clues will be most welcome.
Thanks!