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PostPosted: Mon Nov 09, 2009 8:37 am 
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Walnut
Walnut

Joined: Wed Feb 25, 2009 3:38 pm
Posts: 22
First name: Dave
Last Name: C
Hi guys,
Just about to make my form and wondering is there an ideal thickness for it.Most seem to be around 2-4".Guitar is a SJ.ANy advantages or limits as to thickness for forms.

Thanks in advance.


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PostPosted: Mon Nov 09, 2009 8:56 am 
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Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
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Joined: Mon Dec 27, 2004 1:20 pm
Posts: 5915
Location: United States
One thing about thicker molds that I have ran into is you have to reposition the rim in the mold through various elements of the build. Particularly when sanding the rims for their radius. On rims that cover nearly the whole side they hit the dish.

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Brock Poling
Columbus, Ohio
http://www.polingguitars.com


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PostPosted: Mon Nov 09, 2009 9:03 am 
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Koa
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Joined: Sat Mar 07, 2009 7:56 am
Posts: 1825
Location: Grover NC
First name: Woodrow
Last Name: Brackett
City: Grover
State: NC
Zip/Postal Code: 28073
Country: USA
Focus: Build
IME 2 1/4" thick is thick enough to hold the rim correctly, but thin enough to....work around without having to move the rims in the mold until the box is closed.

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I didn't mean to say it, but I meant what I said.
http://www.brackettinstruments.com/


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PostPosted: Mon Nov 09, 2009 9:30 am 
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Contributing Member
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Joined: Wed Aug 31, 2005 7:30 am
Posts: 1792
Location: United States
3 layers of good quality-void free 3/4" ply (2 1/4") is pretty much standard.

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Laurent Brondel
West Paris, Maine - USA
http://www.laurentbrondel.com/


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