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I want to make a....

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GnarBurger
Posts: 3215 - Karma: 43
 i need to make a collapsible aluminum starting ramp for urbans. i plan on making it in welding class in school. if anybody has hints, tips, pics, or plans, anythign that could help me when building it please share.
Oct 10 2007 4:16PM
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eheath
Posts: 61098 - Karma: 118,247
Tip #1: Use steal, you will spend you're whole welding class learning to just weld aluminum, thats if they even teach it to you.
Oct 10 2007 4:20PM
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GnarBurger
Posts: 3215 - Karma: 43
this is my second year in welding class iknow how to weld aluminum.


1 steel rusts

2 steel is heavy

3 aluminum does neither
Oct 10 2007 4:23PM
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eheath
Posts: 61098 - Karma: 118,247
Ah well there ya go. As for rust. its a drop in ramp doesn't matter? And if you use the right steel and don't use a shit ton, then its not too bad. But make sure to use some thick alu. though.
Oct 10 2007 4:24PM
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DrStrangelove
Posts: 1948 - Karma: 3
my friend and i build these things all the time, are looking for actual fabrication tips or design ideas?
Oct 10 2007 4:25PM
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Tinga
Posts: 11349 - Karma: 2,333
well this is interesting cause in winter the aluminum is going to get very cold and if you get any moisture in there itll make ice and such so everything is going to freeze together so it kinda defeats the purpose of having a collapseable one.
Oct 10 2007 4:26PM
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beer.
Posts: 3096 - Karma: 44
i used wood for mine haha, it was so fucking heavy and unwieldy that lifting it out of the truck was always like 'hmm I wonder will this thing finally crush and kill one of us this time?"
Oct 10 2007 4:26PM
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DrStrangelove
Posts: 1948 - Karma: 3
yah my buddy connor built a pretty nifty collapsible one out of wood last year, but the actual platform you stood on was of the locking fold-out variety. i was always afraid it was going to drop out from under me and send me straight to the concrete onto my head

im not riding his backyard jibs this year unless he figures out a new drop in, im def not using that thing again, it's probably been rotting dangerously in his garage for months now
Oct 10 2007 4:35PM
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GnarBurger
Posts: 3215 - Karma: 43
ive got ideas on how to make it collapse and fit into a car trunk i just need a design idea that has already proven itself
Oct 10 2007 4:38PM
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j3Di
Posts: 1188 - Karma: 13
just get a decent sized sheet of aluminum, make some triangular supports, and attach them to the bottom with lockable hinges.  that way it can fold up and fit in a car's trunk or something.


sooo easy.
Oct 10 2007 4:40PM
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zylstra
Posts: 3613 - Karma: 125
sounds neat
Oct 10 2007 6:43PM
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Tolz
Posts: 1882 - Karma: 27
i never had welding class when i was in high school...
Oct 10 2007 7:41PM
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GnarBurger
Posts: 3215 - Karma: 43
yeah its pretty neat
Oct 10 2007 7:42PM
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TerminatorX
Posts: 3087 - Karma: 169
look at a collapsing table and copy it for the base and supports. then make a removable ramp.
Oct 10 2007 8:04PM
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mistaskia
Posts: 1252 - Karma: 32
shit i wish i could weld aluminum.  all i can do is steal cause lets face it a moron can mig weld
Oct 10 2007 8:51PM
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Caveman.
Posts: 9067 - Karma: 330
PM miralis , he is a welder in the air garud and he is making us an aluminum dropin for this winter
Oct 10 2007 9:06PM
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beer.
Posts: 3096 - Karma: 44
oh by the way, this thread reminds me.  building a drop in is perhaps one of the only times I can remember using math I learned in school in a real life application.  trigonometry worked perfectly.
Oct 10 2007 9:15PM
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jibmaster_josh
Posts: 2369 - Karma: 23
me too!! it was crazy, i actually was freakin out that math was useful.
Oct 12 2007 5:23PM
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sk8almost13x
Posts: 498 - Karma: 10
jim? where u gonna use it? and we have a welding class lol i didn't kno that
Oct 12 2007 7:10PM
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fragglemuffin
Posts: 3312 - Karma: 444
use 90 degree angle bars of aluminum for the frame(about 1/4 in thick) and lockable hinges....the depot should have evrything you need
Oct 12 2007 7:45PM
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potato_man
Posts: 2158 - Karma: 89
aluminum is more likely to get scratched up/bent in a bad way and is more likely to melt when welded

but if your an experianced welder, uve prolly got that covered
Oct 13 2007 1:53AM
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pbandj
Posts: 5610 - Karma: 28
base your desgin off a step ladder
Oct 13 2007 2:41AM
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