I don't have that sander, but with mine I get snipe in a couple of situations. If I try to take too much wood with one pass, I try to limit my depth of cut to 1/128". That equals a 1/8 turn on my depth adjustment, any more than that I get snipe. If I am sanding anything thinner than 1/4", or shorter than 10", I use a sled. If I don't use the sled it almost guarantees snipe. On shorter pieces of stock, if I am not using a sled, I will press down on the stock as it enters, and again as it exits, the sander.
The snipe is caused by not enough support on the out feed end. either the out feed table needs to be adjusted up at the end,or the piece being planed is too long and needs additional support beyond the table.
Also like pointed out short and thin pieces need a sled with sides on it that are high enough to support the feed rollers all the way through each pass.
If the thin piece is not on a sled ,I have found that the DC sucks the piece up to the drum on the final few inches and also sucks the conveyor belt up and causes premature wear on both belts.
The sides on the sled must be replaced every time they are used to make sure that they are in contact with the feed rollers. this will eliminate snipe.
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