anyone have good plans for a diy rocket stove for cooking

I build one using tin cans and a paint pail, it works well but smokes. I think the measurements of the different tubes are not right.
Basically like this.

I want to make a new one that does not smoke anyone built one that works well and does not smoke?
Basically like this.

I want to make a new one that does not smoke anyone built one that works well and does not smoke?