Kanawa Tsugi Splice Joint Instructional / Japanese Joint / Free Drawing and CAD model 

Excellent video - clear instruction. Thanks for posting and making the measured drawing available too.

I'd say that this is the best instructional on that joint I've seen. Very impressive Mitch.

Nice video, Mitch. It is a beautiful connection. You explained and showed it great!

Отличный и подробный мастеркласс 👍

Amazing Mitch! You’re an inspiration mate

Thanks. Great instructions.

Ahoy, Mitch! I'm just diving into wood working now and have recently gotten to the surprising mention of 'wood movement' due to moisture content needing some room on specific planes to avoid damage long term. I get the basics of tangential, radial, longitudal etc and how bread box ends are used to avoid tables from getting into trouble, but I recently saw an ancient Japanese house being dismantled and it had a similar wedge styled joint in use, more of a tusk look to it but same idea. The joint looked to be just as sturdy as the one you made here, and as you mention during assembly it locks tighter without any gaps, but that's my conundrum. If it is tight and even more so because the wedge locks it in place further, how the heck is there no damage to the beams after like 100 years? How does that math out? Were the beams just all cut quarter sawn style? A few looked to be near the core, so possibly, but I doubt all were based on the grain patterns I could make out. Likely it's something I'm not aware of being so new to the topic, and after checking around online and watching your Touch of Japan and joint videos you made, I was hoping for any enlightenment you can provide, I'd be ever so grateful XD

Very nice! Some questions: 1. Why aren't joints glued in timber framing? 2. What is the usual purpose of this joint? Elongating an existing post?

Tsugi is pronounced like "tsu gee" not "tsu guy". Just saying.