Drum Sander, wavy finish

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Forum topic by Murf2499 posted 02-08-2011 06:59 PM 2093 views 0 times favorited 4 replies Add to Favorites Watch
View Murf2499's profile


20 posts in 2829 days

02-08-2011 06:59 PM

Bought a new Grizzly 18” drum sander a few months back. This past weekend i was making hickory cutting boards. I cleaned off as much glue as possible then ran the boards through the drum dander using 80grit to rough sand them. Once I had nice clean, level glue lines I hand sanded from 120, 180, 220, 400. Looked beautiful. I finished with a few coats of mineral oil. When I look at the boards there is a wavy pattern along the board left behing by the drum sander. Any suggestions??

-- Murf, Clifton Park, NY

4 replies so far

View a1Jim's profile


117114 posts in 3599 days

#1 posted 02-08-2011 07:45 PM

skim the boards through your planner and re sand . Check your paper on your sander and make sure it’s not loose and take very lite passes. When you first get sanders some folk try to use them like a planner and take to heavy of cuts. Hope that helps.

-- wood crafting & woodworking classes

View cornflake's profile


36 posts in 2712 days

#2 posted 02-08-2011 08:01 PM

i have a couple of suggestions:

1. use less glue a good glue like titebond 3 goes hold exstremlly well.

2. take your clamps off early after 20 to 30 minutes your can remove the clamps and the cutting board will not fall apart that way you can remove the glue easily because it is not fully dry.

3. 80 grit is two high a drum sand is not a planer i use 120 or 150 on segmented rings and i still can remove uneven surfaces with it. this will also save you some sanding steps.

I hope these tips help you out.

View Jonathan's profile


2608 posts in 3072 days

#3 posted 02-08-2011 08:27 PM

I agree with Jim. Check your paper to make sure it’s tight on the drum. Also make sure the paper is clean and not building up glue, sawdust, etc. anywhere. Are you using a rubber eraser to frequently clean your paper? If not, that is a few dollars well-spent, and willhelp your sandpaper last longer.

I’d have to respectfully disagree with cornflake about not using 80-grit. In my opinion, if you’ve got an uneven board to start with, 80-grit (or even lower) will get you to level faster than a higher grit. Yes, you’ll probably want to change to 120-grit after that, then probably switch to your ROS to finish it off in the 150-220-grit range.

Did the board ever briefly get stuck/stand still when going through the drum sander? That’ll create a gouge, as the drum continues to remove material from that area only. If that happens, the pass was too heavy and you’ll need to take lighter passes, in addition to taking the board down to the level of the divet/gouge.

-- Jonathan, Denver, CO "Constructive criticism is welcome and valued as it gives me new perspectives and helps me to advance as a woodworker."

View a1Jim's profile


117114 posts in 3599 days

#4 posted 02-08-2011 08:56 PM

One more thing to consider, is to try feeding the cutting board at an angle instead of straight in the sander.

-- wood crafting & woodworking classes

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