Lookin to build a jig to cut 20" circles but would like to make it ajustable any ideas? has to be bang on when I'm done as I use will be using it to cut frames for glass art work.
Hi WoodMan#1 - welcome to HomemadeTools.net
I'll move this discussion into our Tools in Progress subforum so that you can get some good ideas.
Wood magazine June/July 2003 has an article "The Ultimate Bandsaw Table System" the system will cut circles up to 32" diameter on a 14 or 16" bandsaw. The accuracy of your circles depends on the accuracy of your build. I think it can still be downloaded from the Internet Archive if you do a search.
Its a 12 page article and may still be copyrighted, here's a picture of the jig to help you decide.
Last edited by Carlos B; 03-28-2017 at 10:00 PM. Reason: add info.
Here's another option. By BritBoxmaker on Lumberjocks.com.
More: Adjustable Circle Cutting Jig version 2.0 - by BritBoxmaker @ LumberJocks.com ~ woodworking community
If you make an mdf board to fit you band saw and lock in place then fit 6mm inserts into the mdf board in line with the front of the blade at any intervals you like you can then screw in screw in a short 6mm stud in your case it should exactly 10" away from the nearest side of the blade, this will be the radius of your 20" circle. I have set a series of inserts at regular intervals so I can cut circles of a number of diameters by screwing the 6mm stud into the appropiate insert.
If you need photos I can take some for you
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