LumberJocks

My new Roubo #6: Beefing up the legs

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Blog entry by JasonD posted 01-05-2011 06:28 AM 1606 reads 0 times favorited 1 comment Add to Favorites Watch
« Part 5: A minor set back, but happy to have it Part 6 of My new Roubo series Part 7: Continuing to work on the legs, 1 step at a time »

Originally, my legs were going to be 3-3/4” x 4-3/4”. After I got my top glued up, I decided that I wanted a little more beef in the legs. I had enough lumber left over that was already acclimated to my shop. I spent a little time yesterday dressing up the legs and put in a bit of time tonight getting the new pieces planed true and ready to add to the leg laminations.

Because of my limited number of clamps, I was only able to get 3 of them glued up so far. Taking a break to watch the Sugar Bowl now, but planning to have the last leg glued and clamped up before bed tonight. That way, I’ll be able to start working on the tenons tomorrow.

One thing that I’m doing differently from Chris Schwarz’s instructions is that I’m gluing my legs up with all the pieces being the same length and cutting the tenons after they’re all glued up. Mortise-and-tenon joinery is the first “real” wood joint I ever learned (besides screws+glue butt joints). I enjoy cutting them and wanted to take the challenge of cutting tenons this big; all my past experience has been 1/4” thick tenons on 3/4” face frames for 4 different cabinets that I’ve built.

I got a 38-degree blade for my new Veritas LA jack plane and it has made planing SYP go from a chore to a dream. Even in the instances where I can’t avoid a knot, the 50-degree angle plows through them with very little (if any) tear out; even when taking a heavier shaving.

I also spent some time this week picking out the wood for my leg vise chop. I have enough pine for it, but from what I’ve read, pine tends to bend a bit under the pressure of the vise at times. The only hardwood that I have in my rack is some hard maple that is 13/16” thick x 8-1/2” wide x 80” long and some red oak that is about 7/8” thick x 9” wide x 48” long.

I want my chop to be between 1-3/4” to 2” thick. So, even with cutting the maple in half and laminating the two pieces, I won’t be able to get away with either piece by itself.; not a problem though. I’ve used oak and maple together in the past to make a mallet and really like the contrasting look of the two woods together. So, I’m going to laminate them together; maple on the outside – oak on the middle – maple on the inside. Even though red oak isn’t as “stout” as maple (from what I’ve read), I don’t foresee any problems with it being laminated in between two 3/4” thick pieces of hard maple.



1 comment so far

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HungryTermite

89 posts in 1797 days


#1 posted 01-05-2011 07:06 PM

This series has been great so far… very encouraging! I am going to start my own Roubo in the next month or so and it’s nice to follow one in progress. Keep up the great work!

-- Good Judgement Comes From Experience. Experience Comes From Bad Judgement.

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