Hi woodworkers,
I have a 18" drum sander, standard type of
a unit. Problem is that every piece of timber I feed thru it turns out
to be concave shaped. Not all that noticeable if I just want to smooth
a surface, but when I join two pieces together the hollow is
noticeable. (like putting a straight edge along the timber)
I have tried everything I can think of but an answer illudes me.
Any suggestions appreciated.