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Post subject:Sheet Metal Seams For Boats
 Posted: Jun 05, 2004 - 03:28 PM #1181
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| Would this be a pracical seam for the hard chines of he boat Junior Scout J? The male counterpart of the seam is not shown in the attached drawing but it will be notched as well. The male part of the seam will be a little diferent. The notch will not extend to the bend line, it will be shortened by an 1/8" and by doing this I think the final edge will not reveal the notches but it will let the seam remain flexable and tight enough for soldering without having the problems of soldering the notch. Tell me what you think... |
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Pricer
Many Minds, Many Hands, Many Solutions
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 04:10 AM #1314
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Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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pricer wrote:
Would this be a pracical seam for the hard chines of he boat Junior Scout J? The male counterpart of the seam is not shown in the attached drawing but it will be notched as well. The male part of the seam will be a little diferent. The notch will not extend to the bend line, it will be shortened by an 1/8" and by doing this I think the final edge will not reveal the notches but it will let the seam remain flexable and tight enough for soldering without having the problems of soldering the notch. Tell me what you think... HDoes anyone have any input on the seam I had posted a while back? This is what I meant when I talked about the notched standing seam for a curve. All of the seam will be bent by hand and will take some time to do. Any other ideas would be nice to hear as well.
Thanks |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 04:36 AM #1315
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Webmaster
Joined: May 13, 2003
Posts: 1308
Location: Waukesha
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I'm thinking that maybe it would be better to have the base of the seam inside so it will close as you bend it and not open?
JMHO |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 01:15 PM #1316
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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Bud wrote:
I'm thinking that maybe it would be better to have the base of the seam inside so it will close as you bend it and not open?
JMHO Explain in more detail. My intentions are to have the seam inside the hull.When you look from outside he hull at the joint, you will see to panels that meet,like the back side of a standing seam. All you would see is the lead in of the two bends leaving a clean surface. Am I explaining this right? |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 01:37 PM #1317
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Webmaster
Joined: May 13, 2003
Posts: 1308
Location: Waukesha
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Sorry, I maynot be looking at your drawing correctly or I do not understand it? The side view is shown in radi form and the notches did not change from the plan view? I'm getting kinda cross eyed trying to understand it...I study it more.  |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 02:37 PM #1320
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| See if this helps at all. |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 03, 2004 - 03:04 PM #1324
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Webmaster
Joined: May 13, 2003
Posts: 1308
Location: Waukesha
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| OK..Much better for me to see now:) |
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"If you make your job important it is quite likely to return the favor" Author Unknown
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 04, 2004 - 02:15 PM #1328
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Power User
Joined: Apr 17, 2004
Posts: 253
Location: Central Ohio
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| Price, would it perhaps be easier to change positions of the seams? By that I mean have the double fold seam run flat along the gentle curve of the bottom (folded first) then fitted to the curving side panel which would have the single 90 degree fold that could be turned in a rotary machine thereby eliminating the need for notches. Just a thought |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 04, 2004 - 02:58 PM #1329
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| That seems like a good idea. I am still looking for that unseen factor,you know, the one that makes you think,"Why didn't I think of that". At our hot rod shop, they have a rotory machine that can turn a 1/2" flange on a curve. It is a three step process that uses nylon dies. I am thinking now that I could turn a flange on both panels and make the standing seam independent from the panels and attach the seam to either or the flanges turned on the panels. On second thought, that won't work either, the seam and flanges will still need to have a compound curve. Maybe I should keep the bottom edge of the boat strait until something eles can be worked out. Thanks for the suggestions, I am sure we will come up with something eventually. |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 15, 2004 - 03:07 AM #1398
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Joined: Sep 16, 2003
Posts: 213
Location: McEwen, TN.
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I built a cajun style pirouge using 1/4" plywood .The side are cut straight w/the ends cut on a 45degree.
When you fasten the sides together at what will be your bow & stern & insert your center frame the bottom will curve. You don't have to cut your sides with a curve.My boat is 14' long .With the bottom sitting on a flat surface the bow & stern are about 3"-4" above bottom line...bordontn |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 15, 2004 - 03:16 AM #1399
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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bordontn wrote:
I built a cajun style pirouge using 1/4" plywood .The side are cut straight w/the ends cut on a 45degree.
When you fasten the sides together at what will be your bow & stern & insert your center frame the bottom will curve. You don't have to cut your sides with a curve.My boat is 14' long .With the bottom sitting on a flat surface the bow & stern are about 3"-4" above bottom line...bordontn i noticed the same thing when i built mine as well. someone told me that was called "rocker" supose to help you turn in the water and without a keel or skeg it would be hard to keep it strait while paddling, |
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Post subject:dxf test 1
Posted: Jul 19, 2004 - 12:06 PM #1443
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Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| test |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 19, 2004 - 12:08 PM #1444
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Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| You must right click and "save target as" to download. I had to do it this way at my site as well |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 19, 2004 - 12:20 PM #1445
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Webmaster
Joined: May 13, 2003
Posts: 1308
Location: Waukesha
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| Works Great! |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 19, 2004 - 12:25 PM #1446
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Power User
Joined: Feb 01, 2004
Posts: 820
Location: Mobile, Alabama
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| Now that drawing was from the private collection, be careful! lol |
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Post subject:RE: Sheet Metal Seams For Boats
Posted: Jul 20, 2004 - 03:02 PM #1453
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Power User
Joined: Sep 03, 2003
Posts: 171
Location: edinburgh
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| Would it be possible to use a grooved seam on this joint eiter internally or externally,aw ra best Marky |
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