How would you hog out these open mortises?

[Jim Becker]

When I look at this photo:



I see a short cut between the two kerfs. That's why I and Derek are saying fretsaw. There's no need to hog out all that material with a spinning blade once those kerrs are cut, presumably with a bandsaw. That's for the "female" side of the bridle joint. The tenon version is pretty much any way one normally cuts tenons.

[Jared Sankovich]

If it were me
Option 1: shaper
Option 2: bandsaw then HCM

[Randall J Cox]

A big radial arm saw could do that. I would clamp the wood to the fence for the cuts.
Bill D
Want to buy my 16" de walt ras?

Hi Bill, I'm down 99 from you inland from Visalia. I have two fully rebuilt RAS, one a DeWalt 1400 1Hp and the other a Delta Rockwell turret 30C 1.5hp, both with 10" blades. (Boy, a 16" DeWalt is big!) I did look at both for this operation and did actually consider this. My 12" DeWalt chop saw actually looked a bit safer. Anyway, we'll see how it works.... Randy

[Randall J Cox]

When I look at this photo:



I see a short cut between the two kerfs. That's why I and Derek are saying fretsaw. There's no need to hog out all that material with a spinning blade once those kerrs are cut, presumably with a bandsaw. That's for the "female" side of the bridle joint. The tenon version is pretty much any way one normally cuts tenons.

Yes, its 5/8" but, its white oak and 4 1/8" deep and there's 32 of them... And I don't even own a fret saw... That tells you what a novice I am - ha ha. Randy

[Jim Becker]

You'd only be cutting between the two existing cuts to remove the big piece of waste and it would leave only a little to deal with via a sharp chisel. You can remove it with a bandsaw but that will leave a lot more waste or require a lot of "nibbling" to get it close and then you're right back to the chisel to complete things cleanly.

[Derek Cohen]

Jim, I just cannot believe that some want to make this really simple task (which should take minutes) a days work!

There is a lesson here - there are hand tools that should be in the armoury of all. Chisels are obvious, a dozuki is another to have. And a fretsaw should be on this list as well.

Regards from Perth

Derek

[Randall J Cox]

I just cut a wider saw kerf in all the ends with my chopsaw. Then I took one board to my 10" bandsaw with a 1/4" blade and went deep in the wider kerf and cut across to take out most of the waste. I will nibble a little with the big band saw and use chisels to clean up. My only issue now is trying to support these heavy 30" boards on the small bandsaw table. I have three roller gizmos, most fall short of the height I need. I'll solve that though, its minor now that I have a plan. Thanks to all. Randy

[Jim Matthews]

https://www.woodworkersjournal.com/m...ints-band-saw/

Not easy to manipulate something this long without a support (like on a ladder).

If the BS motor has recovered, it can manage this.

[Derek Cohen]

I just cut a wider saw kerf in all the ends with my chopsaw. Then I took one board to my 10" bandsaw with a 1/4" blade and went deep in the wider kerf and cut across to take out most of the waste. I will nibble a little with the big band saw and use chisels to clean up. My only issue now is trying to support these heavy 30" boards on the small bandsaw table. I have three roller gizmos, most fall short of the height I need. I'll solve that though, its minor now that I have a plan. Thanks to all. Randy

Randy, please write back with your experience. But I can tell you now that it is sooooo inefficient. Possibly impossible

Regards From Perth

Derek

[Wes Grass]

Back to the bandsaw. Set up like you already did, and whittle it out a kerf at a time by bumping the fence over a 16th.

Basically what you're doing on the chip saw, but it'll leave a flat bottom. And may seem, at least, to be safer.

Whatever's left in the bottom will break out by hand and clean up with a couple strokes of a chisel, rasp, stick with sandpaper glued to it ...

[Jim Dwight]

A forstner bit would get most of the waste and then you could chisel or use a fret or coping saw to get most of the rest, limiting the chiseling.

[Randall J Cox]

Randy, please write back with your experience. But I can tell you now that it is sooooo inefficient. Possibly impossible

Regards From Perth


Derek

Derek, maybe you are misunderstanding what I'm doing. I finished it today, it turned out to be no big deal, just have to do a little chisel cleanup tomorrow. The chop saw (with a support of course) worked as expected, no issues, then used the wider kerf to take to my little 10" bandsaw with a 1/4" blade, cut 95% of the waste out, then to the big band saw to remove the remaining 4% cutting to the stop, with the last 1% to chisel out tomorrow. Maybe it was inefficient, but it all worked in one half day, 32 mortises. I think I overestimated how much work it might be as I have never done this big of a project before. I'm sure you experienced woodworkers can do it quicker and more efficiently... Randy