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Here is my rosette jig that I just finishing. In many ways it is similar to a Well/Karol jig but I added a feature to "template" a known rosette so it can be easily repeated in the future. Multiple template cards could be used to save favorite size/style rosettes.

Here is the finished Jig. The adjustment know is on the back side for indexing the pin in and out. The knob on top is lock the indexing pin into position so it can't move. The bronze bushing are used for the template feature. (see below)





This picture (below) shows the template card half way removed.


Template removed.


Template inserted


Template being locked into position with a set screw


Once the jig is position at the correct position a drill bit can be used to drill through the template using the bronze drill bushing guide. I added two guides to allow very close offset cuts to be made (minimum and maxium). (The template shown has not been drilled yet since I just finished the jig)


If the jig needs to be reposition to a set side the bushing and template holes can be visually aligned. A close fit pin can be dropped through the bushing and into the template holes to ensure final alignment.


Overall a fun little project. I will say that working with plexiglass can be a challenge but it makes for a nice finished product.

Thanks for looking!

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Brad
Avon, OH

[Quote]If the jig needs to be reposition to a set side the bushing and template holes can be visually aligned.[/QUOTE]

This should read...

If the jig needs to be REPOSITIONED to a set SIZE....

Uggg...how do you edit posts anyways?

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Brad
Avon, OH

Man Brad you are one talented guy!!!  This is the nicest rosette jig that I have ever seen.

Since I am sure that you are going to get this question from others - any plans to manufacture these and make them available to your OLF pals?  If so count me in please.

Outstanding!!!!

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Ann Arbor Guitars

Wow, nice jig Brad, you must have some engineering background yes?

Edit button, you wait for the new software to arrive like the rest of us

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Amazingly efficient!
Very spiff Brad...
Cheers
Charlie

Looks impressive! Can we get some pics of the jig in action?

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A higher purpose for wood.
Rich Smith
Issaquah, WA

Sweet looking jig Brad!  For the newbies on the forum where do you source the hardware you used to build your jig - bushings, sleeves, screws, knobs etc.?  I know Lee Valley has some items but they are quite limited.

If some of the other guys on the forum from Canada have some suggested sources maybe you could pass them along.

Cheers and Happy New Year!

[Quote=Ricardo]Can we get some pics of the jig in action?[/QUOTE]

I will be working on a rosette in the near future. Once I get it done I will post some pictures of the results.

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Brad
Avon, OH

[Quote=Rick Cowan]For the newbies on the forum where do you source the hardware you used to build your jig - bushings, sleeves, screws, knobs etc.[/QUOTE]

Rich...everything I purchased was from the local Ace hardware store. You may find most of the items at the local box store (Lowes seems to have a better selection than Home Depot) I am sure that McMaster Carr carries everything. There really isn't anything on the material list that is that expensive or hard to get. 2 knobs, 8-32 threaded rod, 1 8-32 lock nun, 12 #6 x 3/8 flat head screws, 1/4-20 bolt, etc. The plexiglass is .200 thick and I was able to get some cut offs at a local plastics shop. I would be surprised if the whole project was more than $20. It really is more labor than parts.

Once I get the thing debugged I will post a material list and the drawings for others to use.

Thanks for all the kind words.

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Brad
Avon, OH

Brad, this is brilliant! Thanks for sharing.

Is the adjustment rod just threaded in the teflon or HMWP block?

[Quote=Alain Lambert]Is the adjustment rod just threaded in the teflon or HMWP block?[/QUOTE]

Yes..I just drilled and tapped the hole. It seems to work well since the Delron (white plastic) seems to be tight enough to eliminate all backlash. I think it will hold up fine but if not I will drill it oversize and put a brass threaded insert in. This was my original plan but it was needed.

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Brad
Avon, OH

Now that is just freakin clever! Well done Brad brilliant concept.

Cheers

Kim

Brad you are the JIGMEISTER!  Nice design, and execution.  I can't wait to see how it actually works on a rosette. 

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Waddy

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Sound Clips of most of my guitars

Can't wait to stop by and cut some more wood and see this thing in action. Talk to you soon.

Vince

Another great jig, Brad! Keep em comin'

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Anderson Guitars
Clearwater,Fl. 33755