Circle cutting jig for bandsaw?

Question

Anyone have some nice shots of a circle cutting jig built for a 14" Delta-style bandsaw? (the type that extends off the side of the bandsaw's table). We are needing to cut circles with 2' to 4' diameters out of some as yet unspecified sheet stock.

These are going to be used as markers to ground truth the field of view geometry for an array of beach monitoring cameras. Big setup, with 7 cameras and a continuous mosaic view of about 4 km of beach for each of two monitored sites. Lot's of surveying.

Thanks,

Jim Kirby

Dave · Accepted Answer

Check New Yankee WS for jig plan

George · Answer

I'll try a pic of mine on ABPW.  Warning, it's _very_ sophisticated.Else, Duginskie.

Swingman · Answer

results in a cleaner cut, IME.

kirby · Answer

Thanks for the info everyone.  I may go the trammel and router route -thatdidn't come to mind right away for some reason.Kirby

Andy Dingley · Answer

No, because I don't have a nice camera.You have two problems - sawing a circle, and sawing a tangent to thiscircle so as to start the cut.If you're clever, you can make a sliding jig where the guide pin slidesup to a stop adjacent to the blade, so that you can do the tangent startthing.If you're lazy, like wot I am, then you'll just nail a piece of thinply/MDF to the bandsaw table with a pin sticking up from it. Then drillthe pinholes in your stock at the right distance from the edge forstarting.  Make a new jig for each size.Or just buy your markers from the "picnic plates" aisle at Quickie-Mart

James T. Kirby · Answer

That would be nice.  These are going to be 3-4 feet in diameter - hard to see them from 1-2 km away.I think the router and trammel suggestion is it.JK

Circle cutting jig for bandsaw?

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