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PostPosted: Mon Dec 19, 2011 9:33 am 
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Walnut
Walnut

Joined: Sun Dec 18, 2011 10:50 am
Posts: 13
First name: John
Last Name: Dickman
City: Bradenton
State: Fl
Zip/Postal Code: 34210
Country: USA
Focus: Build
Status: Amateur
tried to bend my own sides, blow-out on both upper bouts. home built bender w/heat matt, soaked mahogany for 15min. then wraped in foil and ran the temp up to 425 deg. then lowered temp to 250 for 15 min. later shut the unit down and removed it the next day. I have the steel slats plug-in mat and temp probe. the setup was steel-wood-matt-steel and sides were probably thicker than should be (.125" or so), what did I not do or do wrong? also I am going to make a parlor guitar for my granddaughter w/ spruce top and purple heart sides, back, fret board and tuneing head vineer (purple is her favorite color, 10 yrs old). any and all advice appreciated (glue,bending temps,finish problems(NITRO)). Thank you


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PostPosted: Mon Dec 19, 2011 9:41 am 
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Brazilian Rosewood
Brazilian Rosewood
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Joined: Mon Dec 27, 2004 9:42 pm
Posts: 4217
Location: Buffalo, NY
First name: Robert
Last Name: Cefalu
City: Buffalo
State: NY
Zip/Postal Code: 14217
Country: US
Hi John
Welcome to the forum. Well for starters don't soak your wood. Just mist lightly. Second the sides were way too thick. .085-.090 should bend much easier. Third lower your temp. Way too hot. 300 to 325 is hot enough. There are some good tutorials here. Check them out.

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PostPosted: Mon Dec 19, 2011 9:43 am 
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Contributing Member
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Joined: Mon Jul 27, 2009 7:52 am
Posts: 4524
First name: Big
Last Name: Jim
State: Deep in the heart of Bluegrass
Country: usa
Focus: Build
Status: Amateur
welcome to the forum . yes from my meager experience the .125 is to thick . othrs with much more experience im sure will chime in . look forward to seeing your work .

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PostPosted: Mon Dec 19, 2011 10:39 am 
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Contributing Member
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Joined: Sun Jan 27, 2008 4:10 pm
Posts: 2764
First name: Tom
Last Name: West
State: Nova Scotia
Country: Canada
Focus: Build
Status: Amateur
John : Welcome to the madness..................!! As the others have said,.125 is too thick for reliable bending. Check youtube for John Hall And Todd Stock. Good info.
Tom

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PostPosted: Mon Dec 19, 2011 3:06 pm 
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Cocobolo
Cocobolo

Joined: Wed Sep 28, 2011 8:16 pm
Posts: 100
First name: Adam
State: Oklahoma
Country: USA
Focus: Build
Status: Amateur
John, welcome. I'm new-ish too but the guys on this forum are knowledgeable, respectful and terribly helpful. Good luck to you.

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