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Post by jbodenmann on Jul 1, 2010 3:28:50 GMT
Hello My Friends Got a bit more done, here are some photos. This one shows the side sheets mostly done with the bulkheads in place. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:32:44 GMT
Here are a few on how to make the flared corners. After the side flares were fitted up and held in place with Cleco fasteners, card board patterns were made. Here a piece of card stock is being held in place and marked with a pencil. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:33:45 GMT
Here is the start of the pattern. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:36:44 GMT
Here the pattern has been stuck to the table with masking tape, and a center point has been established so that an arc can be struck that will determine the top edge. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:37:47 GMT
Now the arc can be struck using a compass. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:40:07 GMT
Now lines have been drawn 3/8" out to indicate tabs that will be offset to tuck under the side flares. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:42:42 GMT
The pattern has been cut out and transferred to .050" brass sheet and the brass sheet has been cut out using the bandsaw. The work piece has been made a bit oversize to allow a fudge factor for trimming later. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:46:03 GMT
The work piece has been well annealed and hand formed to fit the corner. Now it is being marked with a Sharpie to locate the offset where it will be tucked under the side flare. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:49:13 GMT
To form the offset small pieces of sheet metal the same thickness as the side flares have been stuck to the corner flare with masking tape using the Sharpie mark as a guide. One piece of sheet metal on each side. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:51:47 GMT
Now our work piece is receiving a good mash using the hydraulic press. If you don't have a press, a milling machine, or machinists vise will do. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:53:11 GMT
Here you can see the offset that will be tucked under the side flare and riveted. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:54:57 GMT
Now the corner flare is clamped in place and is being marked for the offset on the other end. Attachments:
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Post by jbodenmann on Jul 1, 2010 3:57:50 GMT
Both ends offset. In front of the corner flare is a curved piece that will be silver soldered on and will rivet to the vertical corner of the tender side sheet. Attachments:
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Post by jbodenmann on Jul 1, 2010 4:00:06 GMT
Here the pieces have been fluxed, and are being held together by strips of brass and small brass screws. Attachments:
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Post by jbodenmann on Jul 1, 2010 4:01:04 GMT
Now that the pieces are silver soldered the strips of brass and screws can be filed off.
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Post by jbodenmann on Jul 1, 2010 4:04:33 GMT
Here is the photo that was left off the last post. Attachments:
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Post by jbodenmann on Jul 1, 2010 4:08:38 GMT
Here is the corner flare with both offsets formed and clamped in place. In the past I have made these from a single piece of brass and hammer formed the vertical bit that rivets to the side sheets. I think it is easier to make this part from two pieces and silver solder it together. Attachments:
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Post by jbodenmann on Jul 1, 2010 4:11:20 GMT
Here is a look at the other side. Now it will be riveted in place and then trimmed across the top. Next up, the half round beading. Happy Model Building Jack Attachments:
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Post by Shawki Shlemon on Jul 1, 2010 10:19:36 GMT
This is very interesting information , thanks for that , I am sure many of us here have learned something . well done .
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Post by karl1036 on Aug 17, 2010 21:39:28 GMT
Readin with interest , wonderfull attention to detail.......you are a true craftsman.
I will follow this when able to as interesting posts ...
Regards
Karl
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