Bandsaw Circle Cutting Jig

[Carl]

Just bought a new bandsaw, Record Power BS250.
I would like to make a circle cutting jig but not sure how to go about making one, any advice would be appreciated on how to make one.

Regards Carl

 

[skipdiver]

I made one by attaching a piece of ply to the bandsaw flush with the table and coming off to the side.To this is attached a fold down leg to the floor.Into the ply,several holes are drilled at 1cm intervals.A moveable dowel is then placed in one of the holes at the correct radius.Say you wanted a 600mm circle.Cut a piece of material at 600x600,set your dowel at 300mm,drill a hole centrally in the square of material to match the dowell and drop it on the jig.Then simply turn into the blade.

Hope that makes sense.

 

[skipdiver]

Correction.Not flush with the table but sat on top and pushed up so it is adjacent to the blade.I'm confusing myself now.

 

[Shultzy]

Try these.

http://www.cabinetmaking.co.uk/bandcircle.htm
http://woodworking.about.com/od/woodwor ... tJig_8.htm

 

[skipdiver]

You can try to explain things all you like but a good diagram just does the job better.

 

[Carl]

Thanks for the info it has been very helpful, well detailed diagrams, what a lot of difference these forums make.

Regards Carl

 

[Tusses]

I made one similar - only took maybe 10 mins.

top , screwed to the BS table

and the other side up

the sliding dovetail from the front

and lifted up a bit

the pivot point is a nail driven through the sliding center. and I use a screw to as a hold down for now

 

[Steve Maskery]

One thing you have to watch for with BS circle jigs is drift. We all know about drift when trying to cut a straight line, but the same problem can arise with circles. The result is that you cut a spiral rather than a circle.

The solution is to make it adjustable so that the pivot point can be adjusted towards and away from you, as necessary. I achieved this by drilling and tapping the BS table and having a slot in the baseboard of the jig. A thumbscrew holds the jig base down, but it can be adjust to and fro as required.
My jig

Sorry there is only the one photo, I don't have any diagrams. It was a long time ago.

Cheers
Steve