Replies to This Discussion

Permalink Reply by darryl kernaghan on October 17, 2017 at 1:18pm

Wow Mike, i wouldn't go any where near a jointer with something as small as a bridge , you were a bit lucky, cbg's are known to be easy to get a tune out of, but fingers help in making it easy

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Permalink Reply by Mike Whitney on October 17, 2017 at 3:26pm

Man, I know...! - and old enough to know better. I grabbed some 'chopstick' like scraps to try to guide it through and it suck into the blade almost instantly. I'm seriously eyeing up that shaper/sander for the drill-press at StewMac. I think it would lend itself to better consistenct on these small parts.

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Permalink Reply by Mike Whitney on October 16, 2017 at 12:11pm

QUICK QUESTION - 

Before I glue this disc down, given the recent issues, would it be better to put a few dabs of glue around the perimeter of the disc to attach it to the box vs a thin smear of hot glue between the disc and the lid?

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Permalink Reply by darryl kernaghan on October 16, 2017 at 12:22pm

you can always gently re heat the glue to remove it, it's hard to suggest how much glue to use as each mount is different, but once you have it where it sounds best, a layer between it and the wood will soften handling noises, and any amount you put on the other side should not effect the string reading abilities, just other noises

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Permalink Reply by Mike Whitney on October 16, 2017 at 12:44pm

Thanks Darryl. Used a thin smear and all seems to be ok. Now off to build a new bridge...

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Permalink Reply by JL on October 17, 2017 at 12:38am

I invested in a benchtop belt & disk sanding station, and do a whole lot of my work on it, including shaping bridges, tail pieces, nuts, pegs, sanding down the sharp ends of frets and the sides of the fingerboard and neck, I've even made some drum sticks using the disk sander.

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Permalink Reply by Mike Whitney on October 17, 2017 at 3:30am

Hey JL - Good call. I was actually looking at one of those shaping setups from StewMac and wondered how good it was: http://www.stewmac.com/Luthier_Tools/Types_of_Tools/Jigs_and_Fixtur...

Do you have any tricks for sanding things evenly / level? I find it hard to get things perfectly level  / square when doing things like reducing bridge height.

Cheers.

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Permalink Reply by JL on October 18, 2017 at 12:51am

I started with using my electric hand held belt sander upsidedown in the bench vice, then I got something like this: http://www.homedepot.com/p/Ryobi-120-Volt-Bench-Sander-Green-BD4601...

tips for even and level, sure.  Pressing hard will cause the leading edge to grind down faster, go easy with the pressure, do a little at a time,  flip ends/direction of the workpiece often, use the metal table and miter gauge if you need things square.

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Permalink Reply by Randy S. Bretz on October 17, 2017 at 2:18am

You do know that the piezo disc`s can be cut. I use the cut ones in my bone carved saddle bridges. I embed the disc in hot glue.

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Permalink Reply by Mike Whitney on October 17, 2017 at 3:25am

Hey Randy - awesome work man - the detail is incredible! No - I didn't know they could be cut. Can you shoot me a link to your site?

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Permalink Reply by Mike Whitney on October 18, 2017 at 12:37pm

Here's an update of her plugged in... my thoughts on the piezo have changed now that I've pulled it out of the glue / bottle cap. Still curious how guys are getting decent sound from that setup.

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Permalink Reply by JL on October 19, 2017 at 2:25am

probably gluing the piezo side of the cap instead of the thick glue side of the cap to the soundboard, just a guess...

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