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Forum topic by DynaBlue posted 10-28-2009 08:38 PM 1428 views 0 times favorited 5 replies Add to Favorites Watch
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DynaBlue

131 posts in 2651 days


10-28-2009 08:38 PM

Okay LJ’ers,

I’m looking to see who has the slickest circle cutting jig for a router that’s willing to share the design. I’m looking to make a 36” circle in 1” cherry and I’ve already got the circle roughed to 36 1/8” using a bandsaw. I’ve looked online at several different jigs but I wanted to see how you’ve tapped the creative juices on this forum. I intend to use a spiral upcut bit since I’ve already got a pivot hole in the bottom. That should give me the cleanest edge, right? I know this won’t eliminate sanding but it’d probably be faster than sanding off the rough marks from the bandsaw.

Any assistance would be appreciated.

Blue

-- Mistake? No, that's just an unexpected design opportunity....


5 replies so far

View HeirloomWoodworking's profile

HeirloomWoodworking

238 posts in 3200 days


#1 posted 10-28-2009 10:47 PM

Hey Blue

You can check out my blog on making circular dished trays with a router and jig.
http://lumberjocks.com/HeirloomWoodworking/blog/8053

All you would have to do is adjust the size of the jig to your own dimensions and use the jig to cut your blank to the correct diameter. This method is deadly accurate and I have used the jig for a variety of applications since I made my own jig.

Good Luck
Trev

-- Trevor Premer Head Termite and Servant to the Queen - Heirloom Woodworking

View John Gray's profile

John Gray

2370 posts in 3346 days


#2 posted 10-28-2009 11:28 PM

Narm had a show that included making a band saw jig to cut circles with there’s a tape/DVD about it, it’s a very handy jig.
It’s in this jig show: DVD &/or Measured Drawing Item #0101.
http://www.newyankee.com/getproduct.php?0101

-- Only the Shadow knows....................

View a1Jim's profile

a1Jim

115202 posts in 3038 days


#3 posted 10-28-2009 11:41 PM

Here’s another way I use this method a lot.

http://lumberjocks.com/Grumpy/blog/6614

-- http://artisticwoodstudio.com Custom furniture

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DynaBlue

131 posts in 2651 days


#4 posted 10-28-2009 11:47 PM

Great ideas, and thank you! Now, do you use a plunge router to start the cut or how do you start cuts without the bit being in contact with the work? I saw in the video from Trev (hadn’t seen that particular jig before) that it looked like the router is started and then moved into contact with the workpiece before the first rotation is started, was that right? What about with the jig you use, Jim?

-- Mistake? No, that's just an unexpected design opportunity....

View HeirloomWoodworking's profile

HeirloomWoodworking

238 posts in 3200 days


#5 posted 10-28-2009 11:53 PM

You got it correct Blue.

The depth is set on the router. You then bring the router bit into the blank, holding the router against the clamped stop, then spin the wood blank around the entire circumference. Re-adjust depth of router and repeat, until the blank is cut across the entire depth desired.

I like Grumpy’s jig as well. It would take less manufacturing than the jig I used. since I have not used that one, I am not sure which one would be more accurate.

Trev

-- Trevor Premer Head Termite and Servant to the Queen - Heirloom Woodworking

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