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TerryM
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Topic: Need Math Help Posted: 12 Oct 2011 at 10:54am |
Originally posted by David and Danette
Terry would you be able to take a length of wire 12 to 18 inch's in length, bend it to the shape you would like the trailer, then multiply that by 12. If you were to cut strips of thin plywood and glue them together would that give you more strength. David |
Sandwiched plywood would be stronger. If I had a table saw it would be easier also. But I don't. I only have a hand saw. The 2X2's are cheap and more than strong enough. The top and sides would have 2X2 studs in them. The whole thing would be covered with very thin paneling with a plywood floor. Covering the outside, over the paneling would be aluminum or some type of plastic sheet. Remember this is something to be pulled by a 2hp. motorized bicycle and it would only be for sleeping. Nothing else. The inside width is only 24". Terry
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RP-175 W/Lift Kit 2011 Ford F-150 4X4
Saint Augustine, FL: The first permanent European settlement in the USA: 1565
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David and Danette
podders Helping podders - pHp
Joined: 24 Nov 2009
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Posted: 12 Oct 2011 at 10:01am |
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Terry would you be able to take a length of wire 12 to 18 inch's in length, bend it to the shape you would like the trailer, then multiply that by 12. If you were to cut strips of thin plywood and glue them together would that give you more strength. David
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2018 Vista Cruiser 19BFD (2018-2025)
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TerryM
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Posted: 12 Oct 2011 at 9:50am |
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It's very simple really. Draw a flat line the is 8' long. Go to the center of that line. Go up 3'. Now draw a line from both ends up to the 3' mark. There is the curve.
Steam bending isn't very difficult really. It takes either 1 hour per inch thickness or 2 hours per 1" thickness. All I need is a PVC pipe and 2 end caps, steam source and connecting hose. I have everything except the pipe.
I will be using 4 24" bicycle tires with 12 gauge spokes. The back end will open up to get in. It will have 2 air vents and an LED light inside. Maybe a window. One option is a mount on the inside wall for a 9mm handgun.
Terry
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RP-175 W/Lift Kit 2011 Ford F-150 4X4
Saint Augustine, FL: The first permanent European settlement in the USA: 1565
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Footslogger03
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Joined: 21 Jul 2011
Location: Laramie, WY
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Posted: 12 Oct 2011 at 9:36am |
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I would skip the math and build a "model" out of a strip of malleable metal like aluminum or copper. Once you've done that you've got the length number and also a helpful "form" to use for creating other parts of the design.
Just a thought ...
MJ
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Livin' the Dream ...'Slogger
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furpod
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Joined: 25 Jul 2011
Location: Central KY
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Posted: 12 Oct 2011 at 8:51am |
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Need more info on shape of the arc, how verticle you intend to be coming off the trailer, and do you want to come all the way back down to the trailer in the rear, or have a lifted boattail shape..
BTW.. steam bending a kiln dried 2x2 *probably* wont work. I will say I have never tried it, but I have done some steam bending, and kiln dried lumber has it's lignin set by the heat of drying, tends to shatter rather than bend, a small bit it will take, the curve you are talking.. doubtful. Maybe a better plan to use either a lamination (you are going to build a jig anyways.. or cut from sheet goods(what I would do).
Most teardrop builds support the roof with rafters running from the sidewalls..
Some good info here: http://www.teardrops.net even some plans pages in there somewheres..
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TerryM
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Joined: 16 Nov 2009
Location: Saint Augustine
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Posted: 12 Oct 2011 at 8:33am |
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I want to bend a 2X2 into an arc. The finished length, tip to tip would be 8'. The top of the curve would be 3' higher than the ends. How long would the 2X2 have to be?
FYI: I'm designing a teardrop camper for sleeping only and pulled with my motorized bicycle. The 2X2's would form the roof, spaced 2' apart. I plan on steam heating the 2X2's then put them in a jig to hold the arch until they are dried. Then they will stay that way.
Terry
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RP-175 W/Lift Kit 2011 Ford F-150 4X4
Saint Augustine, FL: The first permanent European settlement in the USA: 1565
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