Smith & Wesson Forum

Go Back   Smith & Wesson Forum > Ammunition-Gunsmithing > S&W-Smithing
o

Notices

S&W-Smithing Maintenance, Repair, and Enhancement of Smith & Wesson and Other Firearms.


Reply
 
Thread Tools Display Modes
  #1  
Old 10-21-2020, 08:53 AM
Robert Finegan Robert Finegan is offline
Member
 
Join Date: Aug 2005
Location: Raleigh NC
Posts: 97
Likes: 2
Liked 7 Times in 5 Posts
Default 625 new cylinder fitting

I have a new cylinder that I will be fitting with new extractor. I do not have the cutter and tool for a N frame extractor. I do have an indexer and Bridgeport . Has anyone fitted an extractor on a mill ? Any advice on set up etc would be helpful .

Best

-Robert
Reply With Quote
  #2  
Old 10-21-2020, 09:34 AM
armorer951's Avatar
armorer951 armorer951 is online now
Member
625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting  
Join Date: May 2012
Location: Evansville, Indiana USA
Posts: 6,203
Likes: 480
Liked 11,333 Times in 3,505 Posts
Default fitting extractor ratchets

Robert,

For me, cutting and fitting new extractor ratchets has always been a job completed using a 4" barrette file, by hand. That's what I was taught at the armorer's school.

In terms of using a milling machine......considering the close proximity of the other neighboring ratchets and the extractor boss, coupled with the necessity of repeated trials to confirm proper function and carry up, I can't imagine being able to perform or properly complete such a function on a machine.

While I'm only minimally familiar with basic operations on my milling machine, (I'm not a machinist) it would seem difficult to find an appropriate tool to do this. And, if you were able, there would still be the inevitable and repeated setup and removal, setup and removal from the fixture back to the gun for the ongoing function checks. Sounds like a nightmare.

Carter
__________________
Ret. LE, FA Instr, S&W Armorer

Last edited by armorer951; 10-21-2020 at 10:38 AM.
Reply With Quote
The Following 2 Users Like Post:
  #3  
Old 10-21-2020, 09:36 AM
Protocall_Design Protocall_Design is offline
Vendor
625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting  
Join Date: Jan 2010
Location: Kansas City area
Posts: 6,129
Likes: 53,433
Liked 13,435 Times in 4,240 Posts
Default

Need more information. How new are we talking about? Is the extractor a blank, a finished one, one for a different caliber, etc?

If you have the newest kind with no alignment pins in the cylinder, and the matching extractor, there is no fitting of extractor to cylinder. There may be some fitting of hand to ratchets.
__________________
protocalldesign.com
Reply With Quote
The Following 2 Users Like Post:
  #4  
Old 10-21-2020, 10:07 AM
Robert Finegan Robert Finegan is offline
Member
 
Join Date: Aug 2005
Location: Raleigh NC
Posts: 97
Likes: 2
Liked 7 Times in 5 Posts
Default

Yes, fitting the ratchet to hand is what is required. All are new/unfitted and need to be cut. Im thinking of the initial cuts on the mill to set the initial angle on the lugs/ratchets ( like the factory cutter) and finish with a file/stone for each for proper fit




Quote:
Originally Posted by Protocall_Design View Post
Need more information. How new are we talking about? Is the extractor a blank, a finished one, one for a different caliber, etc?

If you have the newest kind with no alignment pins in the cylinder, and the matching extractor, there is no fitting of extractor to cylinder. There may be some fitting of hand to ratchets.

Last edited by Robert Finegan; 10-21-2020 at 10:14 AM.
Reply With Quote
  #5  
Old 10-21-2020, 10:25 AM
colt_saa's Avatar
colt_saa colt_saa is offline
SWCA Member
625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting  
Join Date: Feb 2005
Location: Cocoa Beach, Florida
Posts: 10,559
Likes: 3,037
Liked 22,450 Times in 5,824 Posts
Default

I can't help with a Bridgeport, I always hand fitted with a file and a stone.

But then I do not do these on a production basis.
__________________
"Acta non verba"
Reply With Quote
  #6  
Old 10-21-2020, 10:33 AM
Robert Finegan Robert Finegan is offline
Member
 
Join Date: Aug 2005
Location: Raleigh NC
Posts: 97
Likes: 2
Liked 7 Times in 5 Posts
Default

Im pretty sure I can set up the indexer with 2 or 3 datum points for repeatable removal/installation of the extractor in a collet. Then set the DRO for X axis material removal. Ill post a few pics / videos once i get back into the shop. I may play it safe and just cut one at a time...

It may be after my bow hunting trip
Reply With Quote
  #7  
Old 10-21-2020, 10:41 AM
Protocall_Design Protocall_Design is offline
Vendor
625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting  
Join Date: Jan 2010
Location: Kansas City area
Posts: 6,129
Likes: 53,433
Liked 13,435 Times in 4,240 Posts
Default

A picture of what we're doing would be very helpful.
__________________
protocalldesign.com
Reply With Quote
  #8  
Old 10-21-2020, 07:55 PM
Nightowl's Avatar
Nightowl Nightowl is offline
SWCA Member
625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting 625 new cylinder fitting  
Join Date: Apr 2004
Location: Warrensburg, MO USA
Posts: 5,404
Likes: 2,840
Liked 3,290 Times in 1,687 Posts
Default

Once upon a time, well three or four years ago, I bought a new extractor for a 686. Rather than deal with the ratchets, I cut an already thin hand even further to fit the existing ratchets. The ratchets were consistent and I did not have to do anything to them. If I recall, the hand ended up being either .087 or .088. quite a bit under spec. Gun worked very well.
__________________
Richard Gillespie
FBINA 102
Reply With Quote
The Following User Likes This Post:
  #9  
Old 11-23-2020, 10:15 AM
Robert Finegan Robert Finegan is offline
Member
 
Join Date: Aug 2005
Location: Raleigh NC
Posts: 97
Likes: 2
Liked 7 Times in 5 Posts
Default

I did use a collet holder as a vise, and not the indexer but it worked out great. Factory hand passes by with just a little drag on each ratchet.


Dropbox - IMG_1134.MOV - 625 extractor

Last edited by Robert Finegan; 11-23-2020 at 10:18 AM.
Reply With Quote
  #10  
Old 11-23-2020, 10:22 AM
Robert Finegan Robert Finegan is offline
Member
 
Join Date: Aug 2005
Location: Raleigh NC
Posts: 97
Likes: 2
Liked 7 Times in 5 Posts
Default

0.0020 of an inch each pass of the lug..and test fit
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
342 PD cylinder not fitting graniteman S&W Revolvers: 1980 to the Present 12 06-04-2019 12:48 PM
Fitting cylinder ladder13 S&W-Smithing 7 01-09-2012 03:28 PM
Problem with fitting new cylinder Murdock S&W-Smithing 7 05-21-2011 05:52 PM
Fitting a cylinder tennexplorer S&W-Smithing 5 01-18-2011 10:18 PM
fitting new cylinder duckloads S&W-Smithing 3 08-26-2009 08:56 PM

Powered by vBadvanced CMPS v3.2.3
smith-wessonforum.com tested by Norton Internet Security smith-wessonforum.com tested by McAfee Internet Security

All times are GMT -4. The time now is 12:24 PM.


Smith-WessonForum.com is not affiliated with Smith & Wesson Holding Corporation (NASDAQ Global Select: SWHC)