On 7/21/2014 3:03 PM, Greg Guarino wrote:
On 7/21/2014 3:23 PM, Swingman wrote:

Many folks who own one, as well as just about every cabinet shop that
specializes in items that use that type joinery, will routinely run all
their doors, face frames, door fronts, and anything with that similar
type joinery, through a large drum sander as a matter of course.

I'm aware of this. But it has often made me wonder how the cross-grain
sanding doesn't produce bad effects.



The drum sander is not the final pass. I have a drum sander and use a
relatively coarse grit. I use the drum sander to make everything flat
and smooth. I follow up with a ROS and then a finish sander. Keep in
mind that the drum sander normally removes the problem areas so the ROS
and finish sanders are simply smoothing out the scratch pattern produced
by the drum sander.