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Circle cutting #3: Jig Pics

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Blog entry by degoose posted 1951 days ago 2488 reads 10 times favorited 5 comments Add to Favorites Watch
« Part 2: About to start Part 3 of Circle cutting series Part 4: Using the jigs »

Here are a few of the pics of the JIG I promised. sorry bout the size, camera settings are skewwiff

Notice the Dovetail Slide, all cut from one piece. at the end closest to the bandsaw is a 5/16 bolt to use as a pivot and another bolt in a T-nut to secure the slide when you have adjusted the blank to the blade.
You drill a matching hole in the centre of your square blank. mount it on the bolt and spin through the bandsaw blade,. sorry if this is a bit sloppy. and I hope you can make some sort of sense out of it all


T

well next time a few of the Jig in action cutting circles.
TTFN Larry

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...



5 comments so far

View kiwi1969's profile

kiwi1969

609 posts in 2044 days


#1 posted 1951 days ago

Yup thats a big jig but it,s better than being too small! Nice and simple, gets the job done. Caboolture,s a nice part of the world by the way. Hope I didn,t wake you on sunday mornings when I was fanging my big Ducati thru there on the way to Maleny!

-- if the hand is not working it is not a pure hand

View Scott Bryan's profile

Scott Bryan

27251 posts in 2424 days


#2 posted 1951 days ago

This is interesting. I like the versatility of this jig since it is adjustable for any diameter up to the length of the jig.

Larry, have you ever tried just using a pin as a pivot point rather than the bolt? I was just considering that in some cases you might not want to drill a hole completely through the blank and using a nail as a pivot point would only entail drilling a 1/4” hole in the underside of the blank in order to mount it. This is not as secure an arrangement as you have here but it would yield a circle without a center hole.

Just a thought.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View jerryw's profile

jerryw

158 posts in 2518 days


#3 posted 1951 days ago

I have a circle cutting jig similar to yours. I used a sharpened dry wall screw for the pivit point. I stick the wood down on the point and turn, have used jig for 10 or 12 yrs with no miss happs. I make hundreds of basket bases on it every year.

-- jerryw-wva.

View degoose's profile

degoose

6978 posts in 1957 days


#4 posted 1951 days ago

Scott sorry wasn’t clear about the hole it is only partially drilled into the blank not all the way.

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View Beginningwoodworker's profile

Beginningwoodworker

13337 posts in 2275 days


#5 posted 1950 days ago

Intersesting Jig.

-- CJIII Future cabinetmaker

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