www.KitGuitarsForum.com

Learn to Kit Build a Guitar. Learn to Scratch Build a Guitar. Learn EVERYTHING Guitars Here!
It is currently Sun Dec 17, 2017 9:27 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next
Author Message
PostPosted: Thu Oct 26, 2017 12:00 am 
Offline

Joined: Sun Sep 08, 2013 11:39 pm
Posts: 110
I was surprised to discover (during my day job as a picture framer) that in a quick look, there was a discrepancy of as much as 1/32 inch in 24 inches between different stainless measuring scales. One was from a tool store, two were the sort you'd get at a stationery store. I also compared to a couple of tape measures. Having just finished a couple of guitars, I can see that that discrepancy could cause you trouble when laying out necks or fingerboards if you happened to switch rules at some point. It's a reminder that it is good practice to use the same rule for all your work. What I don't know is which of the scales is correct! It would make sense to use one from a luthier supply house, but how do we know they are accurate?


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 6:02 am 
Offline

Joined: Wed Aug 13, 2014 12:14 pm
Posts: 944
If you want a reasonable guarantee of accuracy, get a ruler made by Starrett. A 24" ruler is going to set you back over a hundred bucks though.
http://www.starrett.com/metrology/metro ... tBy=wp/asc

_________________
Everybody is ignorant, only on different subjects. -- Will Rogers
There are lots of people who mistake their imagination for their memory. - Josh Billings
Anything is possible if you don't know what you are talking about.


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 10:05 am 
Offline

Joined: Mon Jul 28, 2014 7:50 am
Posts: 425
Location: Chadds Ford, PA
MaineGeezer wrote:
If you want a reasonable guarantee of accuracy, get a ruler made by Starrett. A 24" ruler is going to set you back over a hundred bucks though.
http://www.starrett.com/metrology/metro ... tBy=wp/asc


Agreed: Starrett !


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 11:30 am 
Offline

Joined: Sun Mar 09, 2014 8:13 pm
Posts: 1319
Third agree on starrett.


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 1:41 pm 
Offline

Joined: Sun Sep 08, 2013 11:39 pm
Posts: 110
Could I borrow your Starrett to check to see which of my scales is accurate?


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 6:11 pm 
Offline

Joined: Sun Mar 09, 2014 8:13 pm
Posts: 1319
Stray Feathers wrote:
Could I borrow your Starrett to check to see which of my scales is accurate?

I agree to the starrett, because I know the reputation and I'm buying the 6" at the end of the month. Unfortunately, the 24" is still on my "gotta get" list.


Top
 Profile  
 
PostPosted: Thu Oct 26, 2017 8:23 pm 
Offline

Joined: Wed Aug 13, 2014 12:14 pm
Posts: 944
Unlike a lot of companies that chemically etch the graduations, or paint them on, Starrett machine engraves the graduations on their rulers.

More accurate...more work....more cost....

_________________
Everybody is ignorant, only on different subjects. -- Will Rogers
There are lots of people who mistake their imagination for their memory. - Josh Billings
Anything is possible if you don't know what you are talking about.


Top
 Profile  
 
PostPosted: Sun Oct 29, 2017 5:39 pm 
Offline

Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5422
Location: Hegins, Pa
starret or brown and sharp

there is a difference between a scale and a ruler
you want to buy scales.

_________________
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


Top
 Profile  
 
PostPosted: Sun Oct 29, 2017 8:06 pm 
Offline

Joined: Wed Aug 13, 2014 12:14 pm
Posts: 944
Unfortunately, Brown & Sharpe is no longer a real company. When the company folded some years ago, the brand name "Brown & Sharpe" got sold. If you by a B&S brand something-or-other today, there is no telling who made it, or what quality it is. Tools made by "Brown & Sharpe, Providence, RI," were among the best, but nowadays it's a crapshoot.

Another old-time company that used to make excellent machinist's tools was Lufkin, but they haven't made machinist's tools in years.

_________________
Everybody is ignorant, only on different subjects. -- Will Rogers
There are lots of people who mistake their imagination for their memory. - Josh Billings
Anything is possible if you don't know what you are talking about.


Top
 Profile  
 
PostPosted: Sun Oct 29, 2017 8:19 pm 
Offline

Joined: Sun Sep 08, 2013 11:39 pm
Posts: 110
Is anyone familiar with GEI rules which claim to be NIST certified? Quite a bit less than Starrett.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 19 posts ]  Go to page 1, 2  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


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:  
cron
Powered by phpBB® Forum Software © phpBB Group