12 Fret Slope Shoulder Dread

By Mr. Joe Sustaire of Talihina, OK
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Garry Hallam
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Re: 12 Fret Slope Shoulder Dread

Post by Garry Hallam » Mon Apr 19, 2010 10:14 pm

Nice job on the bending Joe. Just wish I had seen how you use the Paper towel before I ruined two sides sets and almost another set. Oh well!

Garry
Silly rule golden words make, practice practice makes perfect,
Perfect is a fault, and fault lines change - Michael Stipe

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Joe Sustaire
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Re: 12 Fret Slope Shoulder Dread

Post by Joe Sustaire » Tue Apr 20, 2010 7:28 am

Dam, sorry about that Garry!
That wet paper towel trick takes most of the stress out of pipe bending. You're no longer in a race to get it bent before it scorches bad. Just keep on spraying the towel with water between bends and keep working it until you get what you want. Much better burning up a few towels than sides! :D

Joe
"I tell you we are here on earth to fart around, and don't let anyone tell you any different!"
Kurt Vonnegut

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Re: 12 Fret Slope Shoulder Dread

Post by rollingdam » Tue Apr 20, 2010 2:46 pm

I am beginning to feel like an expectant father...

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Joe Sustaire
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Re: 12 Fret Slope Shoulder Dread

Post by Joe Sustaire » Sat Apr 24, 2010 12:45 pm

Just keep pacing John, it's going to be a long delivery! :D

After the end blocks are glued in place I sanded the rims in the appropriate dish, 25' radius for the top, 15' radius for the back.
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Pre-shaping the sides worked real fine, much less sanding with the dishes.

Well after following a thread started by Hanns on the OLF about side tapes, I've decided to give them a try. Alan Carruth did some testing which show that with cotton/poly tapes bedded in HHG it took roughly twice as much force to break the side compared to unbraced sides. Sounds pretty good to me.

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So the tapes run the full width of the sides and the kerfed part of my capped kerfing is glued on over them with fish glue.


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Kerfing on both sides clamped up.

I pre-bent the cap material for my kerfing.
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Glued them on with fish glue, and left them clamped overnight.

And this is how they turned out.
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This adds a couple of days time to the kerfing process, adding the caps, but I sure like the increased stiffness it gives to the rims.

All for now,
Joe
"I tell you we are here on earth to fart around, and don't let anyone tell you any different!"
Kurt Vonnegut

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Joe Sustaire
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Re: 12 Fret Slope Shoulder Dread

Post by Joe Sustaire » Tue Apr 27, 2010 12:03 pm

Just a couple of shots of the completed rimset.

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Kerfing done, faces sanded to the appropriate radius...

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...and a coat of shellac on the ribbons to seal them.

All for now,
Joe
"I tell you we are here on earth to fart around, and don't let anyone tell you any different!"
Kurt Vonnegut

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Garry Hallam
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Re: 12 Fret Slope Shoulder Dread

Post by Garry Hallam » Tue Apr 27, 2010 12:13 pm

Nice Rims Joe, and not a scorch to be seen ;)

I will have to try linings like that, as I don't like how the brace end pockets can sometimes look shoddy when they pass through the kerfs.

Garry
Silly rule golden words make, practice practice makes perfect,
Perfect is a fault, and fault lines change - Michael Stipe

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Joe Sustaire
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Re: 12 Fret Slope Shoulder Dread

Post by Joe Sustaire » Wed Apr 28, 2010 7:45 pm

Thanks Garry!

On to the rosette...

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I give the top a coat of shellac and use a down cut spiral carbide bit to rout the inlay grooves with my poor boy Wells/Karol router base made of plywood. It works. :D

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I make sure and seal the groove with more shellac. Then lay in the perfling and glue it in with thin CA, which can yellow the spruce if not sealed with shellac. I do these rings one at a time and level with a block plane before cutting the next groove. That way I don't wind up with a thin standing ring of spruce which might chip out either in the routing or in pressing in the perf.

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After leveling with the block plane it's on to the drum sander to clean up the top and bring it down to thickness.

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And a close-up.

Thanks for watching,
Joe
"I tell you we are here on earth to fart around, and don't let anyone tell you any different!"
Kurt Vonnegut

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Re: 12 Fret Slope Shoulder Dread

Post by Garry Hallam » Wed Apr 28, 2010 7:55 pm

Beautiful rosette Joe, and that top has some really tight grain.

Garry
Silly rule golden words make, practice practice makes perfect,
Perfect is a fault, and fault lines change - Michael Stipe

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