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Old 7th May 2010, 11:49 PM   #1
tinitus is offline tinitus  Europe
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Default small hole circle router jig, with pictures

I have long been missing a jig for smaller drivers, and finally I made one

I havent tested it yet, but I suppose it works ok
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Old 7th May 2010, 11:54 PM   #2
tinitus is offline tinitus  Europe
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A few more details

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Old 8th May 2010, 02:21 AM   #3
pjp is offline pjp  India
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Your photos are too small to see.
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Old 8th May 2010, 05:20 PM   #4
tinitus is offline tinitus  Europe
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Quote:
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Your photos are too small to see.
I will try to make them larger
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Old 8th May 2010, 06:29 PM   #5
tinitus is offline tinitus  Europe
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Ok,
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File Type: jpg IMG_0149 (Medium).JPG (47.1 KB, 182 views)
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Old 10th May 2010, 12:49 PM   #6
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Hi,

I made a similar jig for small holes too. I find that it works fine until you get below a diameter of 10cm or so (think amplifier front panels). Then I prefer a hole saw in a drill press.

What's your experience with routing <10cm holes?

Kenneth
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Old 11th May 2010, 03:21 PM   #7
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Quote:
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Hi,


What's your experience with routing <10cm holes?

Kenneth
I tried it yesterday, and it works like a charm
You only need a few stop and go, with grip changes
Practice a bit, and you can do it in your sleep

Mind you, I usually dont take more than a few mm depth at a time
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Old 30th December 2011, 07:06 PM   #8
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I have built a couple of hole gigs with a sliding bar with the pin brazed in it. Next time I think I'll add a threaded adjustment rod over the bar for more precise adjustment. I just make a baffle panel using a Jasper jig. My only complaint is it is in 1/16 increments and we really should have at least 1/32 inch. It sure is easy to set up and trust the numbers.
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Old 30th December 2011, 07:15 PM   #9
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Using a collar and an oversized overlay template works very well, as well. Can get down to very small hole size. Maybe use your jig to cut some themplates?
Doc
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Old 30th December 2011, 07:57 PM   #10
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Quote:
Originally Posted by thaumaturge View Post
Using a collar and an oversized overlay template works very well, as well. Can get down to very small hole size.
That sounds like what I use for recessed cabinet handles and jack plates. No stopping to change grip, as the router handles remain positioned the same as I route around the template. Of course, that also works on non-circular shapes. Changing collar size or router bit size changes the offset and thus the size of what's being cut.

I make my templates, then I drive two slightly longer small-diameter brads thru the template with my air-nailer. That secures the template in position for the first cut. For subsequent cuts I just lay the template down and tap it in place with a hammer to set the thin brad pins again without noticeable damage (after filling and painting the teensie holes).

For larger shapes, I should have made my templates larger with broader flat areas for the router to sit on, which makes it easier to keep the router vertical without tipping.
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