Replies

1. 
   AlanTurner | Jan 26, 2003 04:48pm | #1

   I think it doesn't.  In other words, as a planer will give you a banana in - banana out, so will a drum sander.  With both, either a planer or a wedged sled is needed.

2. 
   DJK | Jan 26, 2003 05:17pm | #2

   A good ( not Performax ) drum sander will remove cup because the hold down/pressure rollers don't exert , by design, enough force to flatten the lumber. Planer feed/pressure rollers apply more force along with a pressure bar, if your planer has one, by design to try to flatten the lumber as it is machined. Niether will remove twist, that's a job for the jointer. A drum sander is for sanding not abrasive planing. I do use 60x paper in my Woodmaster for removing slight cup on very wide boards if the project calls for it and for removing finish on recycled lumber.

   Dave Koury

   
   

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   Edited 1/26/2003 9:28:28 AM ET by DJK

1. 
   Upraiser | Jan 27, 2003 05:32pm | #3

   Dave

   I have a Performax and it works fine at removing cup from a board.  Acutally, you can use a knife planner to do the same thing.  Just set the cut so that it takes off the high pont or area first. 

   The reason knife planners tend to flatten the board is that they have the "guts" to do it, while a drum sander typically does not.

   I use my knife planner to do the same thing, but I agree it is easier to miss the problem when the cup is slight.

   Curt