Fetch the Board Stretcher

Happy New Year, everyone! I realized I missed my usual “6am Eastern on New Years Day” post. I think that’s because I went to an actual party and didn’t get to bed right at 730pm like I have for as long as this blog existed. But anyway… 

A while ago, I obtained an old growth slab of what I believe is Slash Pine (one of the species of Southern Yellow Pine) from a reclamation sawmill. It’s about 16 inches wide, 90 inches long, and after flattening is still a solid 3 1/2″ thick. It’s mostly flat at this point, anyway. I actually made an impromptu router sled because it’s so damned hard (the resin long ago crystallized and, between that and the barn grit in the checks, it was eating O1 steel for breakfast). This slab will make a wonderful workbench top once I laminate a fascia board along the front edge and square the ends, though. 

And after I fill all the nail holes and bolt holes with tinted epoxy offscreen.

Another workbench, you say? Well yes, of course. I’ve been working on my 8 foot maple Nicholson which I made in the thick of the pandemic. It’s got the nicest leg vise I’ve made (it’s angled, uses a cog and screw instead of a pin board, and opens and closes very smoothly). But I’m kind of over front aprons again; it makes using bench dogs in the top too difficult, even if the apron is great for edge planing long, wide boards. And I have just the one workbench at home after giving all the others away. A second wouldn’t hurt. 

This new bench will be in the Shaker style, like at Hancock Shaker Village. Leg vise, tail vise, sliding deadman, some drawers underneath. In fact, I’ve already made the leg assemblies. But unlike the Shakers, this bench will knock down (like a Moravian workbench). And I have a linear bearing and a 1 1/2″ hardened steel shaft to use as a parallel guide for the leg vise instead of a pin board (or even a cog and screw or crisscross). McMaster-Carr is the best. 

When making the recess for the linear bearing, though, I didn’t have a good way to make a 2 3/8″ hole. So I chopped it out octagonally. And it was scruffy and didn’t fit well and I had to shim it. All of which ate at my brain and caused me to set the whole project aside for a while. 

I’ve finally come back to it. And it still eats my brain. 

This is just not the quality I’m used to producing.

And what is a fellow to do when a bad bench installation is ruining a good time? Cut the offending portion of the leg off and add some wood back on, of course. About that…

First step was to saw off the offending area and square up the end grain. And also dig out and prepare an offcut of the same species that has a decent grain match. If I had access to a Festool Domino, this would essentially be the end of the process. Four dominos and some glue: Bob’s your uncle. 

My workbench is an absolute mess as I do a few renovations.

But absent a Festool Domino, how does one join two boards, end grain to end grain? Finger joints are probably the best option, because of the large amount of long grain gluing surface. For a hand tool guy like me, that’s essentially a bridle joint. I think in this application, it would be strongest if the mortise was in the remaining leg and the tenon on the added piece. I almost made bridle guides, but that probably would have taken longer than just sawing and paring. 

Now to saw down the sides of the mortise.

Once the mortise was nicely pared to the lines, I roughed out a tenon and finessed it to a friction fit with a router plane. Remember to ease the inner parts of the mortise to leave room for glue on the mating surfaces. A dry fit looked like so:

It was at this point when I realized the offcut was actually from the same board as rest of the leg. Fortuity!

Will a 1″x1″ tenon (with 7/8″ mortise walls) be strong enough for a front leg of a workbench, even with TiteBond Thick & Quick PVA? Fuck if I know. But this is poplar, which doesn’t split easily, so I think I’ll be okay. I plan to add a trio of 3/8 oak pegs as reinforcement along the length of the tenon, which should help. Maybe a couple of metal mending plates too just for luck. But I think it will be strong enough, even without pegs, as long as whatever parallel guide I use for the leg vise doesn’t bear just on the new wood. 

Hopefully I can find the stain I used for the rest of the leg too. 

To be clear, I almost bought a Festool Domino today. But I’m glad I stayed strong and didn’t. Not that having a Festool Domino is bad; I just kind of enjoy doing things the hard way. And I do think this fix is a good solution and should stand the test of time. 

Or not. Fuck if I know. 

JPG

2 comments

  1. Another consideration I’d recommend is whether you tend to chop mortises (or anything, really) over that joint. My eyes are poor, but it looks like one sjde js over the legs, the other, not. If you only chop over the legs, it should be fine. But if, like me, you get careless, it’d probably be a good idea to brace that joint as you suggested. Beautifully clean job, as far as I can see.

    Liked by 1 person

Leave a Comment!

This site uses Akismet to reduce spam. Learn how your comment data is processed.