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Building an adjustable router dado jig!
(nkorai.com)
A handmade home for woodworkers and admirers of woodworkers. Our community icon is submitted by @1985MustangCobra@lemmy.ca whose father was inspired to start woodworking by Norm and the New Yankee Workshop.
Jumping in here a little late. Your jig works great if the bit is the exact width you need for the dado.
The OP's jig, while more complicated, works for any width as long as the bit is between 50% and 100% the size of the dado width.
They're both great, but they aren't 1:1 comparable. I much prefer your version for edge rabbets, and I prefer OPs version for middle of the board dados.