Woodworking Tip: Shop-Made Band Saw Circle Jig
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- Опубліковано 14 сер 2022
- All you need to cut a circle on the band saw is a piece of plywood with a nail driven in to act as a pivot. but this jig is a little more versatile. It's adjustable and easy to detach from your band saw.
For plans and more detail on this shop-made band saw circle jig, check out our website: www.woodsmith.com/article/shop...
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For plans and more detail on this shop-made band saw circle jig, check out our website: www.woodsmith.com/article/shop-made-band-saw-circle-jig/
"Eloge de la simplicité". Simple mais efficace, et c'est généralement tout ce qu'on demande.
Evidemment il y a le trou au milieu de la pièce à découper. Dans la plupart des cas ce n'est pas un obstacle. Et si oui, il suffit de coller avec du ruban double face la pièce sur une plaque martyr et le tour est joué.
This is definitely a nice jig; maybe the best I've seen so far.
However, I think it can be slightly improved by adding a board of - say - 8mm thickness with a circular hole of - say 50mm diameter.
That would allow you to stick a 5mm thick 50mm diameter disc onto the board you're cutting using double-sided tape, so you will not get the pivot-pin mark in your final disc.
Most jigs I've seen use a pivot pin and thus make a mark, but sometimes you do not want that small hole. ;)
This looks like a pretty simple design. It should do most jobs well. 👍 Thank you for sharing. Have a great day and stay safe.🙂🙂
Thank you dear, stay safe, from South Africa
Made the jig and haven't had any success with it so far. Blade is constantly binding, regardless of pivot position. The video starts the cut with a squared piece, with the radius already cut. I think that is necessary for this jig to function, should be noted somewhere, and include the disclaimer that your finished circle will have some flat spots.
I'm debating adding a slot in the jig behind the blade so that entry cuts can be made, and using a stop on the saw table to have the pivot aligned with the teeth. That would mean more time spent on this jig that can't do what I need it to.
Anybody have success with it that can offer tips? It's one of the main reasons I got a bandsaw, and so far I could have been done many times over just using a router.
I like the design gonna give it a try. Thanks for the link and drawing thats important.
Great tip
I made this jig, then tried to cut an 11" circle with a 5 1/2" center using a 1/2 blade. My wood piece is 1/4 inch plywood.
The jig is very nice but the blade is too wide for an 11" circle. The blade would not bend enough without breaking it.
Going forward, I will freehand the circle cut rather than using a jig.
COOL!
Thy, as soon my band saw is installed, it will be my first jig to do.
thanks for posting I built the Jig but I am getting some blade drift and cannot figure it out. any suggestions ? 3/16 blade, blade is at a right angle to jig.
It's good, in theory, but designing the jig for my exact machine took lots of measuring, trial and error, and experimenting. I still need to go out and buy a couple long bolts, so I'm not finished yet.
. As another reader says, this operation on this jig may leave flat spots on the sides of your circle.
I wonder if using a removable suction cup on the jig would avoid drilling a hole into the work piece, just an idea.
What if you want a smaller circle? Do you trim the board down to that, or cut in a path wide enough for the blade?
I'd start with a smaller board so you're not wasting as much material. It's easy to use a couple straight pieces of scrap after cutting down two of the board sides, but those scrap large triangles left from cutting a small circle from a large board limit what can be done with them.
What you would say is the smallest diameter with a 1/4" band saw blade?
What is the angle is the cut in the middle
75 degrees
What are the dimensions?
they gave a link with drawing with dimensions .
Depends on your saw table.