Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sat Nov 30, 2024 1:48 pm


All times are UTC - 5 hours





Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject:
PostPosted: Fri Dec 07, 2007 3:45 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Wed Feb 01, 2006 3:25 am
Posts: 3788
Location: Russellville, Arkansas
OLFers, any of you bugged by ill-fitting pins? I am.

We grab a drill bit and poke two holes through the top and position the bridge for gluing. Usually that bit is a 3/16ths inch bit.

As you know, the end of a bridge pin is way less than 3/16ths allowing the ball to creep into the cavity of a slotted pin and the bridge plate.

Why don't we make bridge pins straight, a perfect 3/16th's of an inch? With a 3/16ths hole, it would kick the ball out onto the plate.

Secondarily, why not just kiss the slotted pin goodbye and slot the tiniest place for a string to go through the bridge top and lodge on the bridgeplate. Surely the contact with the pin would keep it right where it needs to be.

Oh, I have a wee problem pushing some ball ends through a 3/16ths inch hole. Does anyone else have that problem. Those were 80/20 M150 Martin Acoustics .

Your thoughts?

_________________
http://www.dickeyguitars.com


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 3:51 am 
Offline
Koa
Koa

Joined: Wed Aug 22, 2007 11:58 am
Posts: 1667
First, the bottom of the hole is a perf3ect fit in a 2well fitted pin setup. The pin extends into the body. The taper takes care of filling the hole.

Second, a straight pin wouldn't stay straight long, as it would wear. then we'd have a rattling pin setup...

Third, your last description is that of a well fit unslotted pin setup. Once tuned, you can pull the pins out of my guitars and keep them in your pocket all day long....

Martin's balls(no pun intended) are a tad larger than everyone else's.

Nothing new, Bruce, sorry <bg>



Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 4:59 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
Yep the taper of the pin is the securing device. Much like the spindle on a drill press or Wist in on a pumping unit but I doubt many of you have dealt with a wrist pin on a pumping unit


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 5:54 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Mon Mar 19, 2007 7:05 am
Posts: 9191
Location: United States
First name: Waddy
Last Name: Thomson
City: Charlotte
State: NC
Focus: Build
Status: Semi-pro
Morse Tapers on Lathes and Drill Presses.

_________________
Waddy

Photobucket Build Album Library

Sound Clips of most of my guitars


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 6:04 am 
Offline
Koa
Koa
User avatar

Joined: Tue Oct 17, 2006 3:52 am
Posts: 1263
City: Lawrence
State: Kansas
Zip/Postal Code: 66047
Status: Amateur
[QUOTE=MichaelP]t but I doubt many of you have dealt with a wrist pin on a pumping unit [/QUOTE]  I have

_________________
Say what you do, Do what you say.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 6:13 am 
Offline
Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
[QUOTE=Dave Rickard] [QUOTE=MichaelP]t but I doubt many of you have dealt with a wrist pin on a pumping unit [/QUOTE]  I have[/QUOTE]

Im Sorry


Top
 Profile  
 
 Post subject:
PostPosted: Fri Dec 07, 2007 6:14 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Tue Jan 25, 2005 6:16 am
Posts: 2692
What Grumpy said.

Slotted pins were invented to speed production in factories.

_________________
Howard Klepper
http://www.klepperguitars.com

When all else fails, clean the shop.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 42 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com