Hi all!
I'm a casual and hobby woodworker. I have limited knowladge, limited tools and limited intelegence, especially when it comes to engineering.
For all my woodworking time I have been making cabinets with joints in the most simple way - puzzle joint. I put both planks where they would joint and then draw lines and Xs what I should cut out. Then I did that on my table saw using sled.

Now I'm looking for alternative, yet still strong joint + glue options.
I was thinking I would make a better box joint jig (but on bigger cabinets it's hard for me to trust this.

I have an OK table saw, hand router (no router table). Jigs: tablesaw sled, jointing sled and that's about it.

Any ideas welcomed. Thanks!

Basic puzzle joint in attachment.

2020-08-20 14.06.42.jpg