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String Compensation Jig http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=27473 |
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Author: | Bill Higgs [ Wed May 19, 2010 10:14 pm ] |
Post subject: | String Compensation Jig |
Well I just ripped off a good idea from David Hurd. Being fairly new to building, I still feel nervous about getting the bridge/saddle in the right place. I know you more experienced builders have it down, but i think I now have a pretty good way to experiment with different strings on any scale length. Some of the modifications I made on Mr. Hurd's compensation jig were: 1. Using a 1/4" removable fretboard (double sided sticky tape) so different scale lengths can be tried. This also allows you to place the first 3 frets or so, which lets you work on nut slotting. 2. I used a nut instead of a zero fret. It is just wedged between a small piece of wood on the headstock (with a 15 degree vertical angle) and the sticky taped fretboard. 3. The retention block of wood at the tail end of the jig has a piece of aluminum that fits into a slot on the board that keeps it dead still. 4. I used two carriage bolts with compression springs to help keep the bridge platform from skewing from side to side. It was a major project for my little mind, but I'm really tickled with what I've been able to do with it. Anyway, here are a few pics. Thanks for looking. |
Author: | Bill Higgs [ Wed May 19, 2010 10:16 pm ] |
Post subject: | Re: String Compensation Jig |
Closer view: |
Author: | Bill Higgs [ Wed May 19, 2010 10:17 pm ] |
Post subject: | Re: String Compensation Jig |
Another: |
Author: | Ed Haney [ Wed May 19, 2010 10:29 pm ] |
Post subject: | Re: String Compensation Jig |
You also mentioned the first 3 frets. Are you tryning to use the stobe to place the first 3 frets instead by calulation? Are then locating the remaining frets by calculation (template)? Or are you just locating the saddle by using the strobe? Ed |
Author: | Bill Higgs [ Wed May 19, 2010 10:33 pm ] |
Post subject: | Re: String Compensation Jig |
Ed, I cut the fret slots with a template on the table saw. And yes, your right, I am using the strobe to set the saddle/bridge location by comparing the fretted and harmonic note at the 12th fret. Bill |
Author: | Bill Higgs [ Thu May 20, 2010 11:35 am ] |
Post subject: | Re: String Compensation Jig |
Oh yea, I forgot to mention that I use an actual bridge and saddle instead of a piece of metal. This allows me to adjust the saddle. |
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