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Old 03-26-2012, 08:22 PM   #1
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I am buiding a ceder gate (2 doors) total 45" wide by 67" high. It is to fit into an alcove in a interior wall that has an arched top. I made the frame sides by using 1x2 ceder and made the top gluing 2- 1x8's together then cutting the arch out using a jig saw. I don't like the way it turned out using the jig saw and thought of using a router but I'm not that familiar with a router to do it. Any help would be appreciated.

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Old 03-26-2012, 08:43 PM   #2
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Can you snap a picture? If you have trouble posting the pic, give us a 'shout out'
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Originally Posted by irishokw View Post
..... It is to fit into an alcove in a interior wall that has an arched top.......
Is the problem that your Gate's arched top does not match the profile of the alcove arch?
If so a router by itself is not the magic bullet that will make the profiles match.

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Old 03-26-2012, 08:54 PM   #3
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Thanks for replying Bob. I can't take a picture until tomorrow since it's at my friends house. My problem is not that it doesn't match but the bottom of the arch is not completely smooth or clean (I'm not quite sure how to say it). Using the jig saw leaves inconsistant dimensions 1 1/2, 1 7/16, 1 1/2. Not sure if I'm explaining it clearly.
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Old 03-26-2012, 09:15 PM   #4
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Jig saws don't leave a very good edge---the bottom of the arch is also arched?
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Old 03-26-2012, 09:19 PM   #5
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Yes Mike it is. I agree the jig saw doesn't leave a clean cut, at least I wasn't able to get it.
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Old 03-26-2012, 09:23 PM   #6
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Quote:
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.... Not sure if I'm explaining it clearly.
Not sure but now I think this may be scribing problem to mark and trim the high spots.
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Old 03-26-2012, 09:30 PM   #7
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Bob, I was wondering if using the router would give me a cleaner and more accurate cut on the top and bottom of the arch?
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Old 03-26-2012, 09:36 PM   #8
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Prop the new gate in the opening with shims under the gate forcing it up to make contact with the arch. Mark and trim these areas and repeat.
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Old 03-26-2012, 09:39 PM   #9
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You need a template and a follower bit ---making the template will be the same issue--

Is the arch something that could be cut with a trammel point?

How did you draw the original arch?
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Old 03-26-2012, 10:28 PM   #10
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Yes a router will give you a much better cut if you use a circle cutting jig. Google will be your friend there. Tons of info on the subject out there.

Do you know what the radius is?
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Old 03-27-2012, 03:05 AM   #11
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I don't have a clear understanding of the problem. At this point I do not see how a router could help. A router would need some type of edge guide. What were you thinking? My assumption is that the existing target arch is not precise.
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Old 03-27-2012, 10:34 AM   #12
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Quote:
Originally Posted by oh'mike View Post
You need a template and a follower bit ---making the template will be the same issue--

Is the arch something that could be cut with a trammel point?

How did you draw the original arch?
What Mike said
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Old 03-27-2012, 10:47 AM   #13
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Just to clarify ..... a template is something you can cut to the shape you want that the router with a pattern bit in it will follow. I often use 1/4' Masonite. Lay out the radius as precisely as you can using trammel points as suggested. Then cut very carefully with your jig saw or a band saw. Sand out any rough spots and you are ready to clamp your pattern to your work piece to trim it off. Use the pattern to lay out the work piece and cut close to but not on the line leaving about an eighth inch to route off. That way the router doesn't have to work so hard. Where the template is clamped .... route up to the clamp, then put another clamp in an area already routed, and remove the clamp that is in the way to finish the cut if necessary.
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Old 03-27-2012, 04:32 PM   #14
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If the arch is a constant radius (true arc) then you could use a long narrow piece of masonite as a "compass". Attach your jigsaw or router to one end and nail the other end to the door. As you swing the router, you'll cut a perfect arc.

But you'l have to figure out the radius of the arc first.

Here's a very fancy version:
http://www.southpointhawaii.com/incl...-routerjig.pdf
Here's a less fancy version:
http://www.diynetwork.com/how-to/how...ter/index.html

The one I made looks even less fancy.
You can use it with a jig saw, too. But the blade has to be perfectly perpendicular to the jig. If you use a router, you'll need a long enough bit to go thru the wood. No need to cut in one pass, though.

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