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Krenov Style Smart Sawhorses

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Project by gerrym526 posted 1675 days ago 4698 views 5 times favorited 6 comments Add to Favorites Watch

It’s been several months since I’ve been in the shop (don’t like working in a basement shop with no windows on a beautiful summer day). Needed a quick project to get warmed for the next major one-low entertainment center (in design currently).
I liked the idea of having some nice looking sawhorses for the shop, so built a pair from the Dec 09 article in Fine Woodworking “Smart Sawhorses”, using some oak scraps that were in the shop. The joinery gave me an opportunity to use my hollow chisel mortiser again, since the last time it was used was for the cherry/maple blanket chest. (Delta benchtop model).
Overall, was satisfied with how they came out, except for the wedged through mortise and tenon joint. I like using this joinery, but was disappointed on the rough edges of the bottom side of the through mortise caused by the hollow chisel machine. I sharpened the hollow chisels before using, and used a backer board to prevent blowout on the bottom side, but would have liked them to have come out with much cleaner edges.
Anyone have a solution for this issue?
It appears to me that the hollow chisel motiser works great for hidden mortises, but I wonder if the next time this joint is used it would come out better with a plunge router for mortising, and rounded tenons?
Opinions on this are welcomed.
I also got some good suggestions for avioiding the problem of the wedges breaking off when being inserted into the kerfs of the tenon-thanks guys.
Will probably finsh them with a quick coat or two of urethane to keep wood glue from sticking when I’m using them for assemblies.

-- Gerry





6 comments so far

View Dudley's profile

Dudley

742 posts in 1846 days


#1 posted 1675 days ago

I like um. BZ

-- Dudley Young USN Retired. Sebastian, Fl.

View woodenships's profile

woodenships

33 posts in 1755 days


#2 posted 1675 days ago

Them look good ..I have the wood and the same article….over Christmas break I hope to get them done
Could you have cleaned the edges with a file?

D man

-- "Safety is habit you start and always keep!"

View cabinetmaster's profile

cabinetmaster

10874 posts in 2144 days


#3 posted 1675 days ago

Hmmmmmmmm….......................... them look very nice. You just gave me another idea.

-- Jerry--A man can never have enough tools or clamps

View gerrym526's profile

gerrym526

265 posts in 2394 days


#4 posted 1675 days ago

D Man,
I had thought about cleaning the edges with a chisel, but had cut the mortises all the way to my marking guage reference lines. And by cleaning them up, would have been left with big gaps around the tenon (pretty sure that would have been the case).
I’m going to try an experiment with a test piece, cutting the mortise from both sides with the hollow chisel mortiser to see if the edges come out cleaner.
Thanks to the rest of you as well for your nice comments.

-- Gerry

View mfike's profile

mfike

100 posts in 2252 days


#5 posted 1674 days ago

What I do for through tenons is to cut a scrap tenon a little bigger than your hollow chisel and use that to guage how much material to remove. So if you’re using a 1/4” bit/chisel you might end up with 5/16” mortise after you clean it up with a chisel. Then you can cut your actual tenon for tight fit. Just my .02. Oh and I am planning to build these too, so thanks for working out all the bugs for me. Good Job.

View Chris Moellering's profile

Chris Moellering

224 posts in 1234 days


#6 posted 1233 days ago

Nice, just what I was looking for.

-- Grace & peace, Chris+

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