OPG3: Latest Circle Jig Idea? - Router Forums
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post #1 of 31 (permalink) Old 11-16-2011, 11:36 AM Thread Starter
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Default OPG3: Latest Circle Jig Idea?

Howdy, Here are 3- sketches (on one page) showing a plan view and two isometric views. There is much more to the circle jig, but I'm still attempting to load the photos. I've "hybridized" two types of circle jigs - with the most innovative part being Harry's (small radius) Circle Jig. I tried to load my photos last night, but my file sizes were too large; so you're just getting quick sketches at the moment.

I went into this project with the full knowledge that my initial choice of material was impractical (I used some scraps from my shop) - because the one you will see is a prototype. The photo series (yet to come) documents step-by-step decision-making and mistakes so often encountered without prior accurate design documentation.

With expensive products (this did not qualify) it is best to consider everything using 3- dimensional modeling - which allows for interferences and many other types of errors to be detected prior to actual fabrication. The upcoming photo series will illustrate this for interested viewers.

By the way, everything has 4- vital dimensions, does anyone know the fourth one after X, Y & Z? I will tell y'all what that fourth dimension is in my next post.

This one will likely receive many comments.......
PS, Please bear with me as I made 60- photos, turned them into 4- groups of 15- each and made those into .pdf files. Each .pdf contained 15- photos - all of which I've numbered and added explanations. I made several mistakes and their photos are a part of the mix. Being inexperienced in attachment management for this forum I've run into a problem with file size - as I am trying to preserve last night's typing.

Happy Routing and Reading! OPG3
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post #2 of 31 (permalink) Old 11-16-2011, 11:47 AM
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Hi

All I can say once you have the Jasper you will put the rest of the cir.jigs in the trash can..

http://www.amazon.com/Jasper-Circle-...1461861&sr=1-4

http://www.amazon.com/Jasper-200J-Ci...1461861&sr=1-1

http://www.amazon.com/Jasper-400J-Ro...1461861&sr=1-2

http://www.amazon.com/Jasper-300J-Ro...1542362&sr=1-4

http://www.youtube.com/watch?v=KaGGbq7_DKM
http://www.youtube.com/watch?v=b6jMBeM0WBw
http://www.youtube.com/watch?v=193USEiGK6Y&NR=1
====

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Originally Posted by OPG3 View Post
Howdy, Here are 3- sketches (on one page) showing a plan view and two isometric views. There is much more to the circle jig, but I'm still attempting to load the photos. I've "hybridized" two types of circle jigs - with the most innovative part being Harry's (small radius) Circle Jig. I tried to load my photos last night, but my file sizes were too large; so you're just getting quick sketches at the moment.

I went into this project with the full knowledge that my initial choice of material was impractical (I used some scraps from my shop) - because the one you will see is a prototype. The photo series (yet to come) documents step-by-step decision-making and mistakes so often encountered without prior accurate design documentation.

With expensive products (this did not qualify) it is best to consider everything using 3- dimensional modeling - which allows for interferences and many other types of errors to be detected prior to actual fabrication. The upcoming photo series will illustrate this for interested viewers.

By the way, everything has 4- vital dimensions, does anyone know the fourth one after X, Y & Z? I will tell y'all what that fourth dimension is in my next post.

This one will likely receive many comments.......
PS, Please bear with me as I made 60- photos, turned them into 4- groups of 15- each and made those into .pdf files. Each .pdf contained 15- photos - all of which I've numbered and added explanations. I made several mistakes and their photos are a part of the mix. Being inexperienced in attachment management for this forum I've run into a problem with file size - as I am trying to preserve last night's typing.

Happy Routing and Reading! OPG3



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Last edited by bobj3; 11-17-2011 at 10:06 AM.
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post #3 of 31 (permalink) Old 11-16-2011, 12:29 PM Thread Starter
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BJ, That Jasper certainly looks like it will work very well. Soon, I hope to get my photos uploaded. My focus is on prototyping, rather than the actual circle jig; as will been seen in the photos. Thanks for showing that! I found the YouTube video to be quite nice.
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post #4 of 31 (permalink) Old 11-16-2011, 12:47 PM
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Hi Otis

The Jasper works, they do have a down fall but I rework the jig(s) I have, I don't screw the jig to the router I use a brass guide in that way I don't have the cord wind up error put it's very fast to cut the cir.out I just drop it on the Jasper plate and cut it out in a pass or two..plus I can use any plunge bit up to 1 1/4" in diam.
or a rabbet bits ,No math needed just drop and cut..


==



Quote:
Originally Posted by OPG3 View Post
BJ, That Jasper certainly looks like it will work very well. Soon, I hope to get my photos uploaded. My focus is on prototyping, rather than the actual circle jig; as will been seen in the photos. Thanks for showing that! I found the YouTube video to be quite nice.
OPG3



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post #5 of 31 (permalink) Old 11-16-2011, 01:21 PM Thread Starter
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BJ: That's some good information, Thank You. That (Jasper Circle Jig) also gives me some additional ideas. The 60- photo series I made (but don't know how to send, yet) is of a prototype made from Corian & Brazilian Cherry - certainly it is impractical, but the color contrasts made for some interesting photos. I annotated each of the photos in .pdf format, including photo numbers and explanations. Since I am going to make a "real working model" of it, I'm now thinking about soon beginning "the real thing" and documenting it with less photos. I spoke to a photographer friend and he explained how I can bring-down my photos from 2048 x 1536 to numerous choices smaller. I think I will stay with the 4 x 3 ratio format. I'm using FastStoneImageViewer and I believe it will allow text to be added. Thanks again for your comments - based on a ton of experience! OPG3
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post #6 of 31 (permalink) Old 11-17-2011, 08:07 AM
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I just made oneto fit on my scroll saw out of 3/8 plexi glass cut an angle slot so i can move the centre pin . The pin I use is a 10-24 x2in bolt with a wing nut to tighten the point . I shaped a piece of metal to fit in the slot tapped it and adjust it to the thickness of the work . it can cut from 5 to 36" works great Andy
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post #7 of 31 (permalink) Old 11-17-2011, 08:29 AM Thread Starter
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That sounds cool Andy! I'm trying to picture it in my mind, and wondering how your circle jig is attached to the platen of your scroll saw - enabling those huge radii. Do you have any photos? I am working on getting my photos edited again in smaller format. Thanks for your input! OPG3
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post #8 of 31 (permalink) Old 11-17-2011, 09:40 AM
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I use a different approach, I get an idea, draw a very rough freehand sketch and the project develops from there, mistakes are often turned into features!

Harry



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post #9 of 31 (permalink) Old 11-17-2011, 09:49 AM
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hi



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post #10 of 31 (permalink) Old 11-17-2011, 11:31 AM Thread Starter
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Smile First batch of 10 photos...

I have a total of 60- photos, but have been having some learning curve issues with making my attachments. Hopefully this will become the way I need to add photos in the future...

I am very much a "NOVICE" in this area of attaching photo files -

Thanks very much for bearing with me! OPG3
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