Creating an acoustic guitar bridge - Router Forums
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post #1 of 11 (permalink) Old 07-30-2017, 09:26 PM Thread Starter
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Default Creating an acoustic guitar bridge

This is a practice bridge out of Walnut for the guitar I'm building. The actual bridge will be East Indian Rosewood but since I have a lot more Walnut than Rosewood I wanted to make certain my design would work so that lead to a practice bridge.

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Here's the finished bridge -
Creating an acoustic guitar bridge-007-completed-pracitce-bridge.jpg

And a video of the entire process -

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post #2 of 11 (permalink) Old 07-30-2017, 09:48 PM
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It's looking great, David. I guess nearly anything can be done on a CNC. I'm looking forward to the next video of you making the insert. Will you be using bone, Micarta, Tusq, or something similar? I used Tusq once, and was pretty happy with it.
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post #3 of 11 (permalink) Old 07-30-2017, 09:56 PM
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Beautiful work! How did you figure out the intonation for the dual saddle pockets? What will the saddle material be?
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post #4 of 11 (permalink) Old 07-31-2017, 07:09 AM Thread Starter
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Quote:
Originally Posted by chessnut2 View Post
It's looking great, David. I guess nearly anything can be done on a CNC. I'm looking forward to the next video of you making the insert. Will you be using bone, Micarta, Tusq, or something similar? I used Tusq once, and was pretty happy with it.
Thanks, Jim! The saddles will be bone from Bob Colosi and I'll make them by hand. I've made a handful of saddles and nuts out of bone but have yet to use Tusq. I might try it soon, though.

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Beautiful work! How did you figure out the intonation for the dual saddle pockets? What will the saddle material be?
Thanks, Bruce! Intonation and compensation isn't really any different from a single-piece saddle. It's just that the 'B' string can now be fully compensated. Measurement is generally from the nut to the 1st string (high 'E') plus a small amount to allow for string stretch during fretting. My Takamine has a two-piece saddle just like this and I have a guitar that I put a new top and bridge on in 1985 and it also has a two-piece saddle. I can use both of those for comparison and measurements to verify placement before gluing this one down.

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post #5 of 11 (permalink) Old 08-01-2017, 11:02 AM
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Real nice!
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post #6 of 11 (permalink) Old 08-01-2017, 02:42 PM
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Very nice!
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post #7 of 11 (permalink) Old 08-01-2017, 03:04 PM
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WOW, that is really cool to see. I admire your skills.



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post #8 of 11 (permalink) Old 08-01-2017, 03:17 PM Thread Starter
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Thanks, Guys!

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post #9 of 11 (permalink) Old 08-05-2017, 07:55 PM Thread Starter
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Ok, I made another bridge, smaller this time. The first one is 32 grams and this one is 20 grams. This is the size I intended it to be but the first one was more about testing my CNC programs. This one is more about getting the size correct. Yes, I could have done this all in the same bridge but I like making them and I have a ton of small Walnut pieces on which to practice.

Here's the one I made this afternoon, on top of the first one (the leading edge is lined up and they are the same length - camera parallax factor comes into play) -
Creating an acoustic guitar bridge-012-smaller-bridge-top-1st-bridge.jpg

And here they are as a comparison; you can see how much smaller the one made today is -
Creating an acoustic guitar bridge-013-smaller-larger-bridges.jpg

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post #10 of 11 (permalink) Old 08-05-2017, 10:07 PM
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Looks good. I enjoyed your video. While I was watching it, my CNC is merrily cutting away out in the shop.
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