Warbird Information Exchange

DISCLAIMER: The views expressed on this site are the responsibility of the poster and do not reflect the views of the management.
It is currently Thu Mar 28, 2024 3:22 am

All times are UTC - 5 hours


Classic Wings Magazine WWII Naval Aviation Research Pacific Luftwaffe Resource Center
When Hollywood Ruled The Skies - Volumes 1 through 4 by Bruce Oriss


Post new topic Reply to topic  [ 798 posts ]  Go to page Previous  1 ... 12, 13, 14, 15, 16, 17, 18 ... 54  Next
Author Message
PostPosted: Mon Aug 18, 2014 9:51 pm 
Offline

Joined: Tue May 11, 2004 9:44 am
Posts: 322
Location: Alameda, CA
Thanks for the video. That's what I'm looking for. Do you think it's realistic to plan out your metal so there is no trimming?

PC


Top
 Profile  
 
PostPosted: Mon Aug 18, 2014 11:16 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Well, not in my generation. Remember, I'm an old Fart doing things by hand. With today's technology, one could probably take drawings to laser cut or water jet but we are dealing with a vintage airplane with drawing tolerances +/- 1/32". So I think it still needs the fine touch.

Might ask the same question of younger and smarter talent, of which there are many in this industry.

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Wed Aug 20, 2014 9:49 am 
Offline

Joined: Tue May 11, 2004 9:44 am
Posts: 322
Location: Alameda, CA
Good point. I was thinking of the forming process at the factory. They router the blanks in stacks and then press them. I guess my question was, if using the original dimensions on the drawing, can hand forming give you similar results? I assume the metal acts a lot different when hand forming vs. press forming. Either way, I like your idea of leaving extra material for trimming.

Thanks again for the fantastic post. I'm a huge fan of the manufacturing techniques from the 30's and 40's.

Best,
Patrick


Top
 Profile  
 
PostPosted: Wed Aug 20, 2014 11:50 am 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Patrick, first, remember I am making two pieces, RH and LH. I think they also made use of trimming dies in some cases. Hand forming seems to do the trick for the number of pieces I require.

Regarding the original drawings, I was surprised to see how little information they contain in general. Tolerances are in most cases +/- 1/32" (.030") and pieces I have made to print will not fit our aircraft. There is so much variability from plane to plane, each is nearly a "one off". The Mustang guys say the same thing.

Glad you are enjoying what little I can offer up. 8)

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Wed Aug 27, 2014 8:05 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Fun filler project came in today. 30 cal gun pods for T-34 Mentor. One needs new door built. 8)

Image

Image

Image

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Wed Aug 27, 2014 10:09 pm 
Offline

Joined: Tue May 11, 2004 9:44 am
Posts: 322
Location: Alameda, CA
Way cool. Didn't know the Mentor had gun pods. Pretty rare I'm sure.

PC


Top
 Profile  
 
PostPosted: Sat Aug 30, 2014 12:28 pm 
Offline

Joined: Fri Dec 10, 2010 5:15 pm
Posts: 94
Location: East Central Alabama / Auburn, AL
sdennison wrote:
Double post, sorry... :?



Even your empty double posts have educational value. :D :D You're doing a mighty fine job!


Top
 Profile  
 
PostPosted: Sat Sep 06, 2014 7:40 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Gun pod is not 30 cal but actually NATO 7.62. So, I got time today to finish the access hatch door.

Image

The door closing flange was assembled prior to the complete pod, I found out and could not be fitted as one piece. So I cut it in half but didn't like the saw kerf gap so I made a third piece to make it look better, I think anyway. Hope the customers will like. I'm happy with the outcome. Aside: I got my HP/Complex in this aircraft, no guns... Stainless hinge...

Image

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Sat Sep 06, 2014 9:07 pm 
Offline

Joined: Fri Dec 10, 2010 5:15 pm
Posts: 94
Location: East Central Alabama / Auburn, AL
.30 cal in a 30-06 or .308 sense? I am assuming .308/7.62 NATO. Your work looks fantastic to me! I'm certain they will be pleased.


Top
 Profile  
 
PostPosted: Sat Sep 06, 2014 9:56 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
I think 308 is the equivalent for 7.62mm, so you would be correct, Sir. 8)

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Tue Sep 09, 2014 7:56 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Finally got it home. Won't believe this story. Found the Dialarc HF welder and this Enco mill through a friend. The owner passed away before ever using them. Bought in, ready? 1991 and never hooked up. The house was 16,800 sq ft of Swiss Chalet. Indooor 16 x 32 pool, wine cellar, hand made arched doors, unreal. So, without a sky hook, how do I get the mill out? Made a rolling pallet andby dropping the head stock and moving the table side to side numerous times, negotiated the door way and garage. Roll off tow truck with a smart driver and off we went.

Oh, happy happy! Pullmax P6 next. Found through another old friend reconnected. I gotta get out more. Five minutes away, shipping free! Big time score. Somebody is watching over me right now. These tools lay the ground work for the future.

Image

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Tue Sep 09, 2014 8:26 pm 
Offline
User avatar

Joined: Fri Apr 30, 2004 6:51 am
Posts: 496
Location: Rice Lake, Wisconsin
Awesome acquisition there Scott! Congratulations. Can't wait to see what magic you perform with that monster.

Steve :wink:


Top
 Profile  
 
PostPosted: Thu Sep 11, 2014 12:58 am 
Offline

Joined: Fri Dec 10, 2010 5:15 pm
Posts: 94
Location: East Central Alabama / Auburn, AL
Outstanding find!


Top
 Profile  
 
PostPosted: Mon Sep 22, 2014 7:35 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Fixture time.

Image

Image

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
PostPosted: Wed Sep 24, 2014 7:09 pm 
Offline
2000+ Post Club
2000+ Post Club
User avatar

Joined: Sun Jul 31, 2005 7:28 pm
Posts: 2184
Location: Waukesha, WI
Fixture time side 3. This gives me three sides of the structure located and should now be good to start assembling the new bits. All "CMM" dimensions will be good reference and check points along the way.

Image

Image

_________________
"There are old pilots and bold pilots but few old, bold pilots."


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 798 posts ]  Go to page Previous  1 ... 12, 13, 14, 15, 16, 17, 18 ... 54  Next

All times are UTC - 5 hours


Who is online

Users browsing this forum: Google [Bot] and 65 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

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group