Round-bottom hand plane

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Project by Wintergreen78 posted 01-16-2020 03:10 AM 1024 views 0 times favorited 3 comments Add to Favorites Watch

I wanted to try making a plane, and I wanted to get a tool to add curved surfaces to projects, so I made round-bottom plane. I had a short piece of hard maple with nice grain that would rise from the heel to the toe and was thick enough to make the plane out of one piece. I squared up the blank, ripped it down the middle, then got the internal faces flat. I cut the faces of bed and the abutment with a back saw, the chiseled out the waste. Then I sawed as much of the throats front as I could, then chiseled out the rest. I cleaned up everything with chisels and a file, then glued it back together. I made the wedge out of walnut and used a 1 1/4” blade from Ron Hock.

I traced the blade profile on the toe and the heel of the square plane, then rounded the bottom to match the profile. There was a lot of back and forth to get it to match up well. I had the blade wedged in the plane but retracted as I shaped the bottom with my smoothing plane. I rounded the edges of the blade to make sure they don’t dig in if I rock the plane over too far.

This was a fun quick project. I started yesterday and got the plane glued up last night. I took the plane out of the clamps and finished it today. I’m still getting the hang of setting and adjusting it with a hammer, and I may do some more fine tuning, but it works pretty well.

I may make a second body that is also rounded front to back so I can hollow out chair seats. This has also got me excited about making a wooden bench plane.

3 comments so far

View Andre's profile


5004 posts in 3141 days

#1 posted 01-16-2020 04:33 AM

I do believe they are called coopering planes, I made one Krenov style a few years back, Hock sells Blades for them.
Yours looks like it will perform quite well, good job.

-- Lifting one end of the plank.

View mafe's profile


13682 posts in 4425 days

#2 posted 01-16-2020 10:14 PM

Beautiful plane, fine work.
Congratulations on it.
Best thoughts,

-- MAD F, the fanatical rhykenologist and vintage architect.

View mel52's profile


2305 posts in 1600 days

#3 posted 01-17-2020 05:00 AM

I’ve never seen one like this before, ( I think ). Looks like a good idea and should work real well. Great job !!! Mel

-- MEL, Kansas

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