Replies

1. 
   oldusty | Jul 04, 2007 03:52am | #1

         wouldbe1 ,

                        Lucky for us , there are many  , ways of doing the same thing , the most common method of sanding on a drum sander is to start out with a coarser grit or two then graduate to say a 150 gt to finish it off . The finer you take it the less hand sanding will be needed .

     say 80 - 100 - 120gt then 150  if you have it .

                  good    luck            dusty

1. 
   wouldbe1 | Jul 04, 2007 04:18am | #2

   yes I do have all the gt's,just was not sure at what gt to stop at.

   Thanks

1. 
   oldusty | Jul 04, 2007 07:16am | #3

       First off , there are many different types and qualities of drum sanders and they will give varied results but typically the drum sander will not eliminate hand sanding but cut it way down while keeping the surfaces flat .

             So no matter what grit you stop at even 220 , some additional sanding likely will; be needed .

                         dusty

2. 
   KiddervilleAcres | Jul 09, 2007 07:38pm | #4

   I'm a little confused.  Are these the surfaces that you plan to apply glue to?

   If so, I wouldn't think you'd need to finish sand them.  I could be wrong.

   Regards,

   Bob @ Kidderville Acres

    

   A Woodworkers mind should be the sharpest tool in the shop!

3. 
   SteveSchoene | Jul 09, 2007 07:58pm | #5

   I'm also confused.  When you say "face glue" do you mean glue the broad faces together as in creating a thicker glued up board, or do you mean "edge join" which means gluing boards together edge to edge (with the faces up) to create a wider board. 

   In the first example, you don't want to finish sand as Bob said you just want to have them well flattened on a jointer & thicknessed on a planer.  Only after the glue up would you finish sand the two outside surfaces. 

   If the latter is what you mean--and edge joining is the much more common practice, then the sander comes in after the boards are glued and given at least several days for the moisture levels from the glue to dissapate.  What grits you use depends on how precisely the boards were glued.  If they are flat, with just small irregularities where they are joined start with a medium grit say 100 and then run the sequence up to 180 or 220.  But if there is a lot of material to remove, start coarse--even as rough as 60 grit and run  through several intermediate grits up to 180 or 220.