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 Post subject: Re: Neck shape patterns
PostPosted: Fri Sep 22, 2017 7:44 pm 
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Joined: Sun Jun 25, 2017 3:58 pm
Posts: 277
Location: St. Louis area
Got to the place to do another layer of bondo for my neck profile template. The picture shows a wrinkled wavy surface. This is because the Bondo reacts with the thick plastic. It causes it to swell and wrinkle, imprinting it into the bondo. Maybe aluminum foil is a better barrier between the guitar neck and the bondo? The plastic I used was the thick bagging plastic that came in a StewMac shipment, cut into strips.


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Measure Twice,

Karl B


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 Post subject: Re: Neck shape patterns
PostPosted: Tue Jan 07, 2020 5:52 pm 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 6178
Location: Hegins, Pa
thought you guys might find this handy


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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: Neck shape patterns
PostPosted: Tue Jan 07, 2020 11:06 pm 
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Joined: Thu Feb 21, 2019 10:51 am
Posts: 142
Location: Fishers, IN
There is also heat mold-able plastic. One brand is InstaMorph, available on Amazon.

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"Facts seldom sway an opinion." - John Hall
"The difference between theory and practice is that in theory there is no difference." - van de Snepscheut


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 Post subject: Re: Neck shape patterns
PostPosted: Wed Jan 08, 2020 6:34 am 
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Joined: Sun Mar 09, 2014 8:13 pm
Posts: 2248
These are useful and clean to use. I would think that they would make a good pattern. They also come in beads and sheets. I'm buying the sheets to mold into cauls:

https://www.amazon.com/Polly-Plastics-Moldable-Plastic-Strips/dp/B018Q057VC/ref=mp_s_a_1_2?keywords=moldable+plastic+strips&qid=1578479359&sprefix=moldable+plastic+strip&sr=8-2


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 Post subject: Re: Neck shape patterns
PostPosted: Wed Jan 08, 2020 6:41 am 
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Joined: Sun Mar 09, 2014 8:13 pm
Posts: 2248
John, in reference to the CNC profile attachment that you posted, do the measurements include or exclude the fretboard thickness?


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 Post subject: Re: Neck shape patterns
PostPosted: Wed Jan 08, 2020 7:55 am 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 6178
Location: Hegins, Pa
this is the neck without the fretboard
do a search I had posted a page years ago with this including the fretboard

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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: Neck shape patterns
PostPosted: Wed Jan 08, 2020 8:38 am 
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Joined: Sun Mar 09, 2014 8:13 pm
Posts: 2248
Thanks John. I figured it was without the fretboard, but I wanted to make sure. I'm going to stick the attachment in photoshop and manipulate each pattern so it'll print out with the dimensions given. I can make gauges from that.


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 Post subject: Re: Neck shape patterns
PostPosted: Wed Jan 08, 2020 5:16 pm 
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Joined: Sun Aug 24, 2014 12:27 pm
Posts: 34
Thanks Diane. I didn't know there were different versions.

Brent


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 Post subject: Re: Neck shape patterns
PostPosted: Thu Jan 09, 2020 2:03 am 
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Posts: 2248
bftobin wrote:
Thanks Diane. I didn't know there were different versions.

Brent

You're welcome. They come in beads, strips, and sheets.


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