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post #1 of 16 (permalink) Old 11-10-2011, 10:15 PM Thread Starter
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Default Cutting a Circle

Yesterday at Home Depot I saw a circle cutting attachment for a router. Last year a freehanded a circle for a game wheel using a jig saw and a lazy susan for the spinning mechanism. So I am thinking a good first project would be to rebuild the wheel in a proper circle. I think it was 1/4" plywood.

Now my question. Once I figure which bit to use, Do I cut the circle and not go through the wood and then next pass lower it more? Or do I drill a hole and put the bit through and cut away? I think that is wrong but I figured I would ask. I bought a 20 pack of carbide bits from HD, so I am looking for something to play with and learn safely. was also thinking of getting a 2x4 or 2x6 and trying to route it. Safety is # 1 and I want to become familiar with the tool on a simple project which is why I think recutting that wheel could be good practice with a minimal investment.
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post #2 of 16 (permalink) Old 11-10-2011, 10:32 PM
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would try to rebuild the wheel as a test and set up the router to do a shallow cut at the maxinium diamaiter making sure you trim all the way around it then take shallow passes untill through the wheel i would use 1/4 or 3/8 straight bit good luck Andy
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post #3 of 16 (permalink) Old 11-11-2011, 07:03 AM
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Hello Ray!
I tend to check My setup , and then depending on the thickness, Make My cut. A thicker cut will take 3 cuts for a smooth cut. I cut 1/4 with 1 cut. Then put larger bit (plus 1/8 inch.) run around the blank with a finish cut. I can also go straight to the sander, and sand the edge, also. Do what You are most confident with!

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post #4 of 16 (permalink) Old 11-11-2011, 07:34 AM
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Quote:
Originally Posted by rjg202 View Post
Yesterday at Home Depot I saw a circle cutting attachment for a router. Last year a freehanded a circle for a game wheel using a jig saw and a lazy susan for the spinning mechanism. So I am thinking a good first project would be to rebuild the wheel in a proper circle. I think it was 1/4" plywood.

Now my question. Once I figure which bit to use, Do I cut the circle and not go through the wood and then next pass lower it more? Or do I drill a hole and put the bit through and cut away? I think that is wrong but I figured I would ask. I bought a 20 pack of carbide bits from HD, so I am looking for something to play with and learn safely. was also thinking of getting a 2x4 or 2x6 and trying to route it. Safety is # 1 and I want to become familiar with the tool on a simple project which is why I think recutting that wheel could be good practice with a minimal investment.
There are many circle routing jigs shown on this forum, here is just one. A 3/16" to 1/4" cut is the norm depending on the hardness of the wood.
Attached Files
File Type: zip A simple circle jig.zip (265.6 KB, 91 views)

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post #5 of 16 (permalink) Old 11-11-2011, 11:01 AM
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Hey Harry, I wanted to print-out and build one of your circle jigs for myself, but when I downloaded your .zip file, and try to extract the 10- files - I get the following message:
FILE SKIPPED UNKNOWN COMPRESSION METHOD. I'm thinking it may be a difference in compression software. Would it be possible for you to send these as direct .pdf files? And...if it will prove helpful, I will be glad to take the .pdf's and compress them using my compression software and send it back to you as an alternate for anyone else that may encounter the same error message. You may email me direct at [email protected].
Thanks so much, OPG3
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post #6 of 16 (permalink) Old 11-11-2011, 11:36 AM
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Hi

The zip file works just fine on my end.

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Name:	harry zip file cir jig.jpg
Views:	64
Size:	167.0 KB
ID:	47345  


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Last edited by bobj3; 11-11-2011 at 11:39 AM.
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post #7 of 16 (permalink) Old 11-11-2011, 02:17 PM Thread Starter
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I can't unzip either for some reason. Windows 7 plus I have winzip
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post #8 of 16 (permalink) Old 11-11-2011, 02:33 PM
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Hi

Get WinRar it will do the job,,,it's better than WinZip..

WinRAR (32-bit) - Free software downloads and software reviews - CNET Download.com

Download WinRAR 4.01

http://www.irnis.net/gloss/crc32.shtml

http://en.wikipedia.org/wiki/Cyclic_redundancy_check


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Last edited by bobj3; 11-11-2011 at 06:32 PM.
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post #9 of 16 (permalink) Old 11-11-2011, 07:16 PM
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Also try '7 Zip'.

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post #10 of 16 (permalink) Old 11-11-2011, 07:19 PM
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Buy a band saw.
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