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Hot Topic (More than 10 Replies) Building a Stevens Favourite. (Read 12280 times)
Walter  Matera
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Re: Building a Stevens Favourite.
Reply #15 - Jul 6th, 2013 at 11:19am
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Damn!  More and more inspiration.  Where do you guys get the dimensional drawings for the various actions?  Surely you don't back engineer every one?
  
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harry_eales
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Re: Building a Stevens Favourite.
Reply #16 - Jul 6th, 2013 at 11:38am
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Damn!  More and more inspiration.  Where do you guys get the dimensional drawings for the various actions?  Surely you don't back engineer every one?


Walter,

The ASSRA Archivist has several drawings of single shot rifles which are available for $10.00 per set. To see them best it pays to enlarge them to full size at your local photocopy print shop. I believe an ASSRA member J.C.Hannum did these. These are a good starting point for anyone wanting to make a single shot rifle action. There may be the occasional error but these drawings were done from original actions so there may be slight dimensional differences due to wear and tear over many decades.

These plans make a good starting point for any beginner. Alternatively, you could obtain an action and copy it. The Patents for these old rifles ran out decades ago so you have no legal problems in that respect. Search out the ASSRA Archive for further details.

Regards,

Harry
  
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ALPHAWOLF45
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Re: Building a Stevens Favourite.
Reply #17 - Jul 6th, 2013 at 12:25pm
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Damn!  More and more inspiration.  Where do you guys get the dimensional drawings for the various actions?  Surely you don't back engineer every one?


   Where there is a will there is a way. Since most guns aren't drawn out in neat plans I find I can pull pictures off the net- I get lots of good pictures on GunBroker.com , drag them into cad program and scale'em and trace'em and otherwise fool with'm till can make a reasonably good copy...And those times when cant figure out a dimension I ask on one forum or another and always find folks who are more than willing to help......Easiest is to pull apart an original and just copy it part for part.. I am building from plans right now and finding significant errors in the drawings..
  
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Walter  Matera
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Re: Building a Stevens Favourite.
Reply #18 - Jul 6th, 2013 at 1:06pm
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Interesting.  One of my kid's friends does a lot of modeling and such on a very small scale vertical mill.  He and the son are trying to get me to go CNC instead of manual.  I know for a fact that a good manual mill will cost a bunch less but have reluctantly agreed to consult before I go shopping.  If you can feed the plans into the computer and digitize them . . . 


Who knows, I might become computer literate some day before I die! Grin
  
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ALPHAWOLF45
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Re: Building a Stevens Favourite.
Reply #19 - Jul 6th, 2013 at 2:02pm
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Walter  Matera,  Yeup. I use my cnc mill quite a lot but then do majority of my work with a manual mill.. I'd hate to be without a manual mill but lot of fellows manage just fine without.. However you work it the use of a CAD program is a tool you should not be without.
  
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JCHannum
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Re: Building a Stevens Favourite.
Reply #20 - Jul 6th, 2013 at 2:41pm
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While I would be pleased to take credit for having the skills to generate the drawings in the ASSRA archives, it was member J. pickup who produced the original CAD drawings. They are available from several different sources at prices much inflated over the $10.00 ASSRA asks. 

The ASSRA drawings are on 8-1/2" X 11" sheets, but reproduce very well to larger sizes. I do recommend them highly as they are the best I have found for the purpose. As with any drawings, study them carefully and verify dimensions and fits before cutting any metal.
  

Jim H.
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harry_eales
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Re: Building a Stevens Favourite.
Reply #21 - Jul 6th, 2013 at 3:13pm
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JCHannum wrote on Jul 6th, 2013 at 2:41pm:
While I would be pleased to take credit for having the skills to generate the drawings in the ASSRA archives, it was member J. pickup who produced the original CAD drawings. They are available from several different sources at prices much inflated over the $10.00 ASSRA asks. 

The ASSRA drawings are on 8-1/2" X 11" sheets, but reproduce very well to larger sizes. I do recommend them highly as they are the best I have found for the purpose. As with any drawings, study them carefully and verify dimensions and fits before cutting any metal.


Oops, my apologies to both of you, I can only claim creeping senility as an excuse. Damn, its no fun getting old, or should I say ancient.  Sad

Harry
  
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BP
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Re: Building a Stevens Favourite.
Reply #22 - Jul 6th, 2013 at 4:39pm
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Walter Matera wrote Quote:
If you can feed the plans into the computer and digitize them . . .


Walter,

Scanners and digitizing software vary widely as to quality and accuracy. Sometimes you'll find it is best to just CAD from scratch.

  

There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves.
Proud Noodlehead
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desert-dude
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Re: Building a Stevens Favourite.
Reply #23 - Jul 25th, 2013 at 7:56pm
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I recently came across this site and was very impressed by this thread.  Cool If you like the Stevens Favourite and fancy building one for yourself,  then look here to see how one amateur gunsmith made his. You will need more than just your Swiss Army knife for whittling metal, you have been warned. See:-

(You need to Login or Register to view media files and links)


Impressive bit of machining. Good planing and layout. Takes a bit of patience to get thru a project like this. 

As for square holes I've been looking for a square bit to do this but seem unable to find one.  Cry

As for real square holes there are many methods. Broaching is classic. I've heard tell of 3 foot long broaches to do the mortice on a falling block. Think $1K or more just for the broach to say nothing of the gentle (Wink) press needed to pull or push it. 

If you have $$ then wire edm is the way to go. ~.0001 taper in the mortice. For an amateur sinker edm is easier but you still need a way to orbit for the last .005 or so. ECM (electrochemical machining might do) but doesn't get used much. 

Drill and then carefully jig and use keyway broaches to clean out the corners would work but takes time and precision. 

The easy way is to do what Picatinny Arsenal did for M-16 uppers. 
Machine them in halves then EBM (electron beam weld together. 
Oh, sure, everyone has an EBM in their basement. 

Actually TIG or MIG works pretty well. 

Now I'm going to run and hide while everyone blasts away.  Wink



Enjoy,

Harry   Smiley

  
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