Chevy II; The Canadian Cousin #5: Repairing "Curvature of the Spine"

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Blog entry by shipwright posted 07-20-2016 02:53 AM 778 reads 0 times favorited 11 comments Add to Favorites Watch
« Part 4: New Blade Clamps Part 5 of Chevy II; The Canadian Cousin series Part 6: Repairs / Transplant Complete »

Chevy II is five years old now and has never missed a beat. It still cuts perfectly square with the adjusters in neutral position but the whole column has developed quite a curve to the right (as you sit on it). This may be because the column is too narrow but I suspect it has more to do with the poorly milled “urban wood” garry oak from which it was made.
At any rate while working on the new plywood model last week I decided to replace the column on the old girl. A plywood column would never have ended up like this ….. and I have white oak veneer. :-)

Here are a few pictures of the problem. It doesn’t affect the accuracy of the cut, just makes you lean a little to the right when you use it.

So I cut the column off at the top of the base and made up a new one from a piece of scrap plywood I had. I tried the alignment hole idea that I plan to use on the CNC cut kits. The1/4” holes not only align the parts but if you use reddi rod the holes can be used for clamping as well.

I made a dummy column end to mark and cut new mortises on top of the old tenons while the glue set and finally cut and glued up the smaller top pieces.

Pretty much down to veneer and final assembly now. I’ll post finished pictures in a couple of days.

Thanks for looking in.


-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

11 comments so far

View DocSavage45's profile


7649 posts in 2262 days

#1 posted 07-20-2016 03:11 AM

Looks like you’re hooked on plywood. ???? Maple or birch?

-- Cau Haus Designs, Thomas J. Tieffenbacher

View rance's profile


4243 posts in 2580 days

#2 posted 07-20-2016 03:30 AM

In horseshoes a leaner is a good thing. In a chevy, maybe not so much. But the Dr. is IN. Well done Paul.

Oh, wait Paul. Maybe you’ve just misdiagnosed the problem. It sure looks like it has scrolliosis to me. Wouldn’t that be a good thing for a Chevy to have?

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View Druid's profile


1230 posts in 2215 days

#3 posted 07-20-2016 03:59 AM

So now you’re getting into transplant surgery on “experienced” Chevalets? This should put a different slant on your projects. ;)
Actually, a very nice way to restore it to brand new condition. Good job Paul. Waiting to see the final restoration.

-- John, British Columbia, Canada

View kiefer's profile


4873 posts in 2087 days

#4 posted 07-20-2016 04:07 AM

Plywood and yellow glue where are you going with this ?
You are right laminated plywood should be strong and warp free and a good replacement column and once veneered it will look perfect again .


-- Kiefer

View Joe Lyddon's profile

Joe Lyddon

9325 posts in 3472 days

#5 posted 07-20-2016 04:11 AM

That plywood is very stable and solid… for sure…

Very good Fix!

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: ... My Small Gallery:"

View shipwright's profile


7085 posts in 2218 days

#6 posted 07-20-2016 04:15 AM

I’ve always liked plywood. It is an amazing medium. People have sailed all over the world in plywood boats that they built themselves. In some circles it gets a bad rap but you won’t hear me speaking ill of it.
As for the pva glue Klaus, I don’t use the good stuff for menial jobs like this. This doesn’t need any of hide glue’s special characteristics.
Birch Tom.

Thanks all

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View Jim Jakosh's profile (online now)

Jim Jakosh

16796 posts in 2525 days

#7 posted 07-20-2016 01:44 PM

Plywood is so good in may ways…especially the good stuff.


-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View stefang's profile


15512 posts in 2754 days

#8 posted 07-23-2016 11:21 AM

After a few years in the Navy, the small list to port probably wouldn’t bother me, but I can see it just isn’t good enough your shop Paul.

-- Mike, an American living in Norway.

View Philip's profile


1275 posts in 1959 days

#9 posted 07-26-2016 01:09 AM

Great work Paul, but what the heck is reddi rod?? All thread perhaps?

-- I never finish anyth

View shipwright's profile


7085 posts in 2218 days

#10 posted 07-26-2016 01:50 AM

Yes Philip, I’m sure they are both trade names. In Canada it seems to be called Reddi Rod (or Ready Rod) at least where I hang out.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View Philip's profile


1275 posts in 1959 days

#11 posted 08-10-2016 02:47 AM

Good deal. Learn something new every day…

-- I never finish anyth

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