I recommend buying the templates. Rough cut on bandsaw and used template and pattern bit on router table. Very little sanding to finish. Mike B
I thought I was getting a 6” template. The one that arrived is 4”.
I love these templates. I have made several blast gates for my shop and they don’t leak whatsoever!
Since I don't have a CNC I traced the templates and cut them out on my bandsaw. I used a 4" hole saw, which was perfect for the sliding gate hole, and I enlarged the other holes on my spindle sander. Simple to put together, but I haven't figured out the mounting bracket yet.