The Acoustic Guitar Forum  

Go Back   The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > General Acoustic Guitar Discussion

Reply
 
Thread Tools
  #1  
Old 02-08-2007, 01:17 PM
ayavner's Avatar
ayavner ayavner is offline
Registered User
 
Join Date: Jun 2006
Location: Sydney, NSW OZ
Posts: 2,233
Send a message via AIM to ayavner Send a message via Yahoo to ayavner
Default Luthiers: body molds?

Hi all,

Ok, i narrowed down that i want to build the StewMac dread kit. only thing I can't get past is the cardboard mold with plywood waist clamp. Seems cheesy to me, compared to those nice wooden molds with cauls and turnbuckles holding the sides tightly.

So I found a nice one on ebay, and he says:

With Martin and other kits having the radius of the top and back built into the kit , the molds will accomodate this without distorting the body and causing problems during the build like a flat mold will. This is perfect for the guitar builders and luthiers


Not sure what that means, looks pretty squared to me. How does the mold have anything to do with accomodating the radius of the top/back? Isn't its job mainly to hold the sides rigidly in place? There isn't some inside angle off perpendicular to the table that I am unaware of is there? And if so, how would a cardboard cutout and plywood clamp maintain this?

thanks!

(yes i know about www.kitbuilder.com, just wnat to get y'all's opinions too!)
__________________
illegitimati non carborundum

http://www.youtube.com/ayavner

2006 Martin OMC Aura (Laurelin)
1998 Martin HD-28 (Telperion)
Epiphone WildKat w p90s and Bigsby!
1997 Rickenbacker 360/12V64

Dearly Departed:
1981 Yamaha FG 335
Alvarez AJ60SC12
Regal RD35 Roundneck dobro
Reply With Quote
  #2  
Old 02-08-2007, 01:26 PM
Cornerstone Guitars's Avatar
Cornerstone Guitars Cornerstone Guitars is offline
AGF Sponsor
 
Join Date: Jul 2006
Location: SOCAL
Posts: 2,136
Default

To me all you need is a flat sided mold to accomodate the sides. Radius does not have anything to do with the mold...
If you want email me the Ebay link and I'll throw in a few more cents!

Aslo, I would recommend a solid mold.... adjustable molds are not as efficient.
__________________
_______________________
Peter M.
Cornerstone Guitars
www.cornerstoneguitar.com

www.twitter.com/CornerstoneGtrs

Tuners and stuff...
www.cornerstoneguitar.com/Store.html
Reply With Quote
  #3  
Old 02-08-2007, 01:30 PM
ayavner's Avatar
ayavner ayavner is offline
Registered User
 
Join Date: Jun 2006
Location: Sydney, NSW OZ
Posts: 2,233
Send a message via AIM to ayavner Send a message via Yahoo to ayavner
Default

Quote:
Originally Posted by worshipguitar View Post
To me all you need is a flat sided mold to accomodate the sides. Radius does not have anything to do with the mold...
If you want email me the Ebay link and I'll throw in a few more cents!

Aslo, I would recommend a solid mold.... adjustable molds are not as efficient.
Hi Peter,

here is the link, and all the extra cents you can throw me will be money in the bank for me!! thanks again,

Adam

http://cgi.ebay.com/Luthier-Martin-G...QQcmdZViewItem
__________________
illegitimati non carborundum

http://www.youtube.com/ayavner

2006 Martin OMC Aura (Laurelin)
1998 Martin HD-28 (Telperion)
Epiphone WildKat w p90s and Bigsby!
1997 Rickenbacker 360/12V64

Dearly Departed:
1981 Yamaha FG 335
Alvarez AJ60SC12
Regal RD35 Roundneck dobro
Reply With Quote
  #4  
Old 02-08-2007, 01:59 PM
Cornerstone Guitars's Avatar
Cornerstone Guitars Cornerstone Guitars is offline
AGF Sponsor
 
Join Date: Jul 2006
Location: SOCAL
Posts: 2,136
Default

Thats the one you want!! and John Hall is a great person to deal with too!
__________________
_______________________
Peter M.
Cornerstone Guitars
www.cornerstoneguitar.com

www.twitter.com/CornerstoneGtrs

Tuners and stuff...
www.cornerstoneguitar.com/Store.html
Reply With Quote
  #5  
Old 02-08-2007, 02:06 PM
ayavner's Avatar
ayavner ayavner is offline
Registered User
 
Join Date: Jun 2006
Location: Sydney, NSW OZ
Posts: 2,233
Send a message via AIM to ayavner Send a message via Yahoo to ayavner
Default

awesome! kinda figured, but i was a little thrown off by the radius statement, since i couldn't figure out what that would have to do wtih it. Think the stewmac instructions would have to be radically altered to use this with their kit?
__________________
illegitimati non carborundum

http://www.youtube.com/ayavner

2006 Martin OMC Aura (Laurelin)
1998 Martin HD-28 (Telperion)
Epiphone WildKat w p90s and Bigsby!
1997 Rickenbacker 360/12V64

Dearly Departed:
1981 Yamaha FG 335
Alvarez AJ60SC12
Regal RD35 Roundneck dobro
Reply With Quote
  #6  
Old 02-08-2007, 02:10 PM
Cornerstone Guitars's Avatar
Cornerstone Guitars Cornerstone Guitars is offline
AGF Sponsor
 
Join Date: Jul 2006
Location: SOCAL
Posts: 2,136
Default

Have you bought the kit yet? If not, John sell great kits too! Either way you can email him and he'lll let you know if it fits or not... he has done so many, he'll have the answer for you....
__________________
_______________________
Peter M.
Cornerstone Guitars
www.cornerstoneguitar.com

www.twitter.com/CornerstoneGtrs

Tuners and stuff...
www.cornerstoneguitar.com/Store.html
Reply With Quote
  #7  
Old 02-08-2007, 02:15 PM
ayavner's Avatar
ayavner ayavner is offline
Registered User
 
Join Date: Jun 2006
Location: Sydney, NSW OZ
Posts: 2,233
Send a message via AIM to ayavner Send a message via Yahoo to ayavner
Default

No not yet, still have a few bills to pay down, just ramping up the knowledge phase. the listing says it will fit the stewmac kit, and I did email him. will let you know what he says.

My shop is almost finished, just putting the final touches on it lately. I am so excited to get started, and as always, grateful for the great info i get here. Thanks Peter!
__________________
illegitimati non carborundum

http://www.youtube.com/ayavner

2006 Martin OMC Aura (Laurelin)
1998 Martin HD-28 (Telperion)
Epiphone WildKat w p90s and Bigsby!
1997 Rickenbacker 360/12V64

Dearly Departed:
1981 Yamaha FG 335
Alvarez AJ60SC12
Regal RD35 Roundneck dobro
Reply With Quote
  #8  
Old 02-08-2007, 04:37 PM
Freeman Freeman is offline
Registered User
 
Join Date: Feb 2003
Posts: 1,636
Default

Another vote for John, my 12 string kit came from him. I have had very good luck making my own molds out of pressboard - and I know you've probably seen this on the kit forum

http://www.kitguitarsforum.com/forum...id=961_0_6_0_C]

I simply traced half the plan on a sheet of 3/4 pressboard, cut four pieces with a band saw (clamp them together and cull them all at once) and spaced them with a couple of 3/4 scraps. The waist expander was made out of the parts cut out - they will nicely be the correct shape.

I don't understand what they are saying about the top and back radius - I simply clamped the mold to another piece of flat pressboard while gluing the top on, then when I turned it over to glue the back on (top down ) I made a little 1/4 inch thick spacer ring so the clamping pressure was all on the rim.
Reply With Quote
  #9  
Old 02-08-2007, 05:20 PM
ayavner's Avatar
ayavner ayavner is offline
Registered User
 
Join Date: Jun 2006
Location: Sydney, NSW OZ
Posts: 2,233
Send a message via AIM to ayavner Send a message via Yahoo to ayavner
Default

Very, very impressive...

I notice you have a expander pushing out at the waist, but not one going from block to block - is there a reason for that? I would be worried about pulling them out of square (with respect to the flat surface its on).
__________________
illegitimati non carborundum

http://www.youtube.com/ayavner

2006 Martin OMC Aura (Laurelin)
1998 Martin HD-28 (Telperion)
Epiphone WildKat w p90s and Bigsby!
1997 Rickenbacker 360/12V64

Dearly Departed:
1981 Yamaha FG 335
Alvarez AJ60SC12
Regal RD35 Roundneck dobro
Reply With Quote
  #10  
Old 02-08-2007, 05:26 PM
Freeman Freeman is offline
Registered User
 
Join Date: Feb 2003
Posts: 1,636
Default

Many of the pics I saw of others building only had the waist expander so that was all I did. I did, however, clamp the ends to the mold. Here was my very first one, similar mold, there is a picture of the clamps

http://www.kitguitarsforum.com/forum...=125_0_6_120_C

You could even use a sabre saw and a rasp to make the mold. That is the one big use I made of the band saw (except when I built the mando - I needed a band saw a lot for that one)
Reply With Quote
Reply

  The Acoustic Guitar Forum > General Acoustic Guitar and Amplification Discussion > General Acoustic Guitar Discussion

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Loading

All times are GMT -6. The time now is 06:26 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright ©2000 - 2014, The Acoustic Guitar Forum
vB Ad Management by =RedTyger=