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PostPosted: Sun Feb 13, 2011 12:49 pm 
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Joined: Tue May 18, 2010 6:42 pm
Posts: 554
First name: Brian
State: NY/Granada
Country: USA/Spain
Focus: Build
There is a really good tutorial on Hans Bentrup's website. http://www.brentrup.com/
look under the Visit shop section


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PostPosted: Sun Feb 13, 2011 1:23 pm 
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Joined: Sat Dec 30, 2006 3:20 am
Posts: 2593
Location: Powell River BC Canada
First name: Danny
Last Name: Vincent
This http://www.hoffmanguitars.com/Making%20 ... Bridge.htm worked for me. I did the first two inside radius with a rasp and cleaned it up with a spindle sander. I built a sled like he shows and used the same method with a router table and pattern bit. It worked well but not an overly fast method. I guess if I wanted fast I could have stuck on the SM one I have kicking around but what fun would that be.

Good Luck!


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PostPosted: Sun Feb 13, 2011 2:14 pm 
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Koa
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Joined: Wed Jan 24, 2007 2:45 pm
Posts: 1270
Location: Calgary, Canada
Status: Amateur
I just carved one using Frank Ford's methods. His was ivory, but the technique is the same. It's a 3 sided pyramid (not really, but the inside is curvier :lol: ) which differs from the machine carved ones available at Stew Macs.

http://frets.com/FRETSPages/Luthier/Tec ... ridge.html


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PostPosted: Sun Feb 13, 2011 4:27 pm 
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Joined: Fri Aug 26, 2005 5:49 pm
Posts: 2915
Location: Norway
I too make mine "Martin style", so the pyramid actually only had one flat side. Here's one in African blackwood

Image

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PostPosted: Sun Feb 13, 2011 6:46 pm 
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Joined: Wed Jan 24, 2007 2:45 pm
Posts: 1270
Location: Calgary, Canada
Status: Amateur
Looks good Filippo.


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PostPosted: Sun Feb 13, 2011 10:18 pm 
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Joined: Mon Dec 27, 2004 9:42 pm
Posts: 4216
Location: Buffalo, NY
First name: Robert
Last Name: Cefalu
City: Buffalo
State: NY
Zip/Postal Code: 14217
Country: US
Nice job Filippo.

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PostPosted: Sun Feb 13, 2011 10:30 pm 
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Joined: Sat Dec 30, 2006 3:20 am
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Location: Powell River BC Canada
First name: Danny
Last Name: Vincent
Nice. Clamping a piece to drill the face is a good trick.


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PostPosted: Mon Feb 14, 2011 8:12 am 
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Koa
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Joined: Mon Feb 18, 2008 10:01 pm
Posts: 1655
Location: Jacksonville Florida
First name: Chris
City: Jacksonville
State: Florida
Focus: Build
Status: Amateur
Nice job Filippo! I'm gonna have to remember that.

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PostPosted: Tue Feb 15, 2011 4:02 am 
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Joined: Tue Jan 20, 2009 12:41 am
Posts: 603
Location: LaCrosse WI
First name: Jason
Last Name: Moe
City: LaCrosse
State: WI
Zip/Postal Code: 54601
Country: USA
Focus: Build
Status: Semi-pro
Nice idea. Nothing like the smell of ebony dust in the morning. I like your curly maple bit cabinet in the backround too. I see alot of cool tool holders and tables, boxes, jigs, molds, and stuff out of the coolest woods from guitar makers. Cool shop. Jason

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PostPosted: Wed Feb 16, 2011 1:49 am 
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Joined: Fri Mar 31, 2006 4:54 pm
Posts: 713
Location: United States
First name: nick
Last Name: fullerton
City: Vallejo
State: ca
Zip/Postal Code: 94590
Country: usa
Focus: Build
Status: Amateur
I just winged it and came out with this design, using my handy rasp and chisels. It's a little beefier looking than the old ones.


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PostPosted: Wed Feb 16, 2011 2:06 pm 
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Joined: Thu Jul 13, 2006 6:17 am
Posts: 1937
Location: Evanston, IL
First name: Steve
Last Name: Courtright
Focus: Build
Status: Amateur
Well done, Filippo. I tried various methods at the beginning of my building days, and failed pretty miserably. So, I know it's not easy to do.

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PostPosted: Fri Feb 18, 2011 8:53 pm 
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Joined: Tue Mar 18, 2008 8:43 am
Posts: 776
Location: Florida
First name: John
Last Name: Killin
Focus: Build
Status: Amateur
This was a timely thread. I was just about to make a pyramid bridge.

Originally I was going to jig up and try to do it with either the table saw or band saw. After reading Frank Fords instructions, I pretty much followed that. It was easier to do that it would have been to make the jigs. Although with all that filing I now have a pain in my back. laughing6-hehe

My new favorite tool is the chainsaw file.

Attachment:
Bridge Pyramid.jpg

Attachment:
Bridge Pyramid End.jpg


As it is in the pictures it weighs in at 22g. I just need to work out my slotting and bridge pin method.

John


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