All Replies on End grain cutting board wobble!

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View Benius's profile

End grain cutting board wobble!

by Benius
posted 07-09-2017 08:31 PM

6 replies so far

View AandCstyle's profile


3211 posts in 2652 days

#1 posted 07-09-2017 09:42 PM

Benius, it could be a couple of different things: You didn’t mention how you sand them, but you might be introducing a 32nd discrepancy that way. The boards might be warping a bit if there is a moisture differential caused by storing them flat and air flow over the top dries the top more than the bottom. HTH

-- Art

View splintergroup's profile


2697 posts in 1617 days

#2 posted 07-09-2017 09:51 PM

Do you use a drum sander?

I noticed that when sanding (especially end grain), the board will get quite warm. Further sanding to get it flat will often result in a slight warp when I flip it over to do the other side.

I figured that the heat from sanding was warping the board (about 1-1/2” thick).

I corrected this by letting the board cool for 20-30 minutes between grits, then waiting a day before doing the final 180 grit pass.

This eliminated any “wobble”.

View Benius's profile


29 posts in 716 days

#3 posted 07-09-2017 11:16 PM

I use a random orbital sander with 180 grit to start and then, without any pause, usually end with 220 or 400 depending on the wood type. I’ve noticed super hard wood like Purple Heart doesn’t sand as well as maple and walnut and cherry so I figure I’ll use 400 grit to buff them more than sand. I never thought heat would be an issue but maybe you’re right. Also, I work in my garage in a Minnesota and I’d wager that the humidity is a definite problem. Thanks for the insight!!

View Benius's profile


29 posts in 716 days

#4 posted 07-10-2017 02:45 AM

I’m thinking after I’m done sanding, I’ll bring the board inside and let it dry for an extra few days before applying mineral oil. Perhaps that’ll allow moisture/humidity to escape before becoming trapped.

View splintergroup's profile


2697 posts in 1617 days

#5 posted 07-10-2017 12:57 PM

A ROS wouldn’t generate the heat that I’m referring to. Best to follow your own advise and let them “rest” a few days before finishing.

View cracknpop's profile


347 posts in 2743 days

#6 posted 07-11-2017 01:59 AM

My son and I made our first end grain cutting boards earlier this year. One of them developed a wobble after sanding with drum sander. My only explanation was that one board held more heat than others which warped it during sanding. We ended up using ROS to sand opposing corners until wobble was gone.

-- Rick - I know I am not perfect, but I will keep pressing on toward the goal of becoming all I am called to be.

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