The Acoustic Guitar Forum

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

Reply
 
Thread Tools
  #1  
Old 09-12-2013, 12:05 PM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default Build Thread: Indian Hill Concert Engelmann/Wenge for TAMCO

I have a few projects to finish up in the coming weeks, but I'll soon be starting on my next build for Trevor at TAMCO! These are the basic details we've worked out so far...

Concert model
Wenge/Zebrawood/Wenge back
Wenge sides
Engelmann top
12-fret body joint
Sound port

Before starting I'll be doing some slight tweaking of my Concert shape. The key dimensions are going to stay the same, but the transition points will be changing. Basically the waist and widest point of the lower bout will both be higher up. Here's a pic of how I draw out my shapes...



I really like using this method -- using a flexible piece like that really allows for natural curves and great control of the transition points (where the piece of wood is pressed against the plastic).

I'm quite happy with the re-designed shape and will post pictures of my fancy new mold and drawings soon!

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #2  
Old 09-12-2013, 05:02 PM
cigarfan's Avatar
cigarfan cigarfan is offline
Music soothes the soul!
 
Join Date: Jan 2012
Location: Within the blast radius of Washington D.C.
Posts: 3,229
Default

I look forward to following along. Always so interesting.

Is the shape change for esthetics only or is there a sonic change you are going for?
__________________
AGF Moderator
Reply With Quote
  #3  
Old 09-12-2013, 05:58 PM
JamesO JamesO is offline
Registered User
 
Join Date: Oct 2007
Posts: 342
Default

Sounds pretty! I'm looking forward to following along. Do you know how you'll bind it?
Reply With Quote
  #4  
Old 09-13-2013, 01:32 PM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Quote:
Originally Posted by cigarfan View Post
Is the shape change for esthetics only or is there a sonic change you are going for?
Mostly it's for looks, but I'm hoping the re-design will have some sonic benefits as well. The soundboard area should remain roughly the same so by bringing up the waist I'll be increasing size of the working area of the top (basically the lower bout).

Quote:
Originally Posted by JamesO View Post
Do you know how you'll bind it?
Right now the plan is for wenge binding with zebrawood and maple purfling.

Should be finishing up the mould today and really getting started on construction next week!

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #5  
Old 09-25-2013, 03:25 AM
The Acoustic Music Co (TAMCO) UK's Avatar
The Acoustic Music Co (TAMCO) UK The Acoustic Music Co (TAMCO) UK is offline
AGF Sponsor
 
Join Date: Apr 2009
Location: Brighton UK
Posts: 1,607
Default

I'm really looking forward to this one, the last guitar from Mike sold in a few days.
__________________
Trevor.
The Acoustic Music Co.
www.theacousticmusicco.co.uk
Luthier made guitars and mandolins from North America, TAMCO: Brighton UK.
Reply With Quote
  #6  
Old 09-25-2013, 10:18 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Good timing Trevor! The new shape/mould is finally done and I can fully start on this one...

Here's the wood for this build...



Preparing the center section of the back...



For the style of rosette I'm planning for this build I install it in several stages. Here I've put in the radial wenge for the main part of the rosette with radial zebrawood for the soundhole binding...



Next, I route out channels for the radial zebrawood that will surround the wenge...



Today I'll finish up joining the back sections, install the rest of the rosette, and hopefully get started on bracing! Busy busy day ahead....

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #7  
Old 09-26-2013, 09:39 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Yesterday lived up to my expectations and was indeed busy busy busy!

Started the day off by finishing up the rosette. Here I've removed the teflon strips and mostly cleaned up the rest of the rosette before installing the radial zebrawood purfling...



And here it is all cleaned up!



Here the final pieces of the back are being joined...



And this is how it's going to look! I think under finish the transition from the outer wenge to the inner sapwood of the zebrawood will be quite nice. I also like tying in the color of the sapwood to the engelmann spruce on the top...



Here I'm checking the deflection of the top as I thickness. In this case, I'm going for the same relative deflection as the last engelmann guitar I sent to Trevor. Since this is a slightly larger shape than my OO, it will deflect slightly more, but the ratio of deflection to length will be the same...



That's it for now!

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #8  
Old 10-01-2013, 08:04 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Not too many exciting pictures this time, but the guitar is moving right along.

Some of the other guys in my shop have been getting excited about laminating their liners so I thought I'd give it a try this time. First thing this morning will be to clean up the lamination job and see how it turned out!



The back is about half braced so hopefully I can finish it up today and get it glued to the frame. More pictures later!

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #9  
Old 10-05-2013, 11:25 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

It's been an incredibly beautiful week in Montreal and things are moving right along with this build. Here's a shot of the laminated liners...



The wenge laminations definitely made the rims stiffer, but I would approach it differently in the future if I try it again. I think I would pre-bend and laminate the liners before gluing them onto the sides -- certainly would make cleaning it up a lot easier!

As I've mentioned in previous threads, I view my backs more as reflectors than an active partner with the top. Because this is really a 4-piece back, I needed 3 back strips and decided to pre-laminate them all into a 15' arch. This equals a stiff back!



Despite the stiffness, the back still rings like a bell and I was quite pleased to get a closed ring and a half...



I now have half a box and it's time to start bracing the top!



Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #10  
Old 10-08-2013, 08:08 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Around 5 years ago I braced a guitar with a pretty different bracing pattern (at least for me) and despite thinking it was one of my best sounding guitars, I hadn't tried that style of bracing again -- until now!

Here's the start of the bracing process...



Those scoops in the V-braces will have larger braces crossing over them -- I like to have a reasonable amount of "scoop" on either side of intersecting braces to avoid concentrated points of stiffness as much as possible.

This is the final, and mostly uncarved, pattern...



Something else that might be hard to notice is that I like to have all of my braces connected to other braces or the liners around the edge. For example, the V-brace that starts at the tail end and goes into the waist has been notched out to overlap the two cross-grain braces near the bottom. I figure that if braces both fight string tension and transmit/distribute vibration I want to have a connected and closed of a system as possible!

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #11  
Old 10-08-2013, 08:56 AM
SJ VanSandt SJ VanSandt is offline
Registered User
 
Join Date: Feb 2013
Location: Austin, Texas
Posts: 1,362
Default

An X over a V - that's really interesting. I would love to hear this one!
Reply With Quote
  #12  
Old 10-10-2013, 09:41 AM
IndianHillMike's Avatar
IndianHillMike IndianHillMike is offline
AGF Sponsor
 
Join Date: Feb 2012
Location: Montreal, QC
Posts: 243
Default

Getting close to finishing the woodwork on the body for this build. Here's the top with fully carved braces and ready to be glued to the sides...



I'm very excited to hear how this one will sound and am glad I revived this old bracing pattern. I don't think it's going to lay dormant again after this build!

And now it's a full box!



It's nice to finally get a good idea of what the newly modified shape looks like. It's one thing to see drawings or the top/back on it's own, but now that the body is fully formed I think you can really see the true shape.

Today I'll finish cleaning up the sides and get started on binding. I'm going for really clean and defined lines on this one -- I think a simple maple line will look really classy with the chocolaty wenge.

Mike
__________________
Indian Hill Guitar Company
indianhillguitars.com
facebook
instagram
Reply With Quote
  #13  
Old 10-10-2013, 10:39 AM
cigarfan's Avatar
cigarfan cigarfan is offline
Music soothes the soul!
 
Join Date: Jan 2012
Location: Within the blast radius of Washington D.C.
Posts: 3,229
Default

I like your new shape. Looks like a larger chamber in the lower bout. Betcha the low end will be awesome. Thanks for sharing Mike.
__________________
AGF Moderator
Reply With Quote
  #14  
Old 10-10-2013, 10:42 AM
The Acoustic Music Co (TAMCO) UK's Avatar
The Acoustic Music Co (TAMCO) UK The Acoustic Music Co (TAMCO) UK is offline
AGF Sponsor
 
Join Date: Apr 2009
Location: Brighton UK
Posts: 1,607
Default

I like it too, I'm really looking forward to getting my hands on it.
__________________
Trevor.
The Acoustic Music Co.
www.theacousticmusicco.co.uk
Luthier made guitars and mandolins from North America, TAMCO: Brighton UK.
Reply With Quote
  #15  
Old 10-12-2013, 06:39 AM
ewh2 ewh2 is offline
Registered User
 
Join Date: Oct 2012
Posts: 1,028
Default

Looking forward to the pictures of the finish. His FP work is outstanding.

If you read my post Mike, if you don't mind me asking how much percentage of your time per build is spent on the finish?

Last edited by ewh2; 10-12-2013 at 06:47 AM.
Reply With Quote
Reply

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

Thread Tools



All times are GMT -6. The time now is 02:31 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright ©2000 - 2017, The Acoustic Guitar Forum
vB Ad Management by =RedTyger=