chrsgrain
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| posted on 27/3/08 at 12:22 PM |
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O/T - What gauge metal for a board rack?
Hi all,
Am just about to make a metal board rack for some windsurf boards to go in the back of my van - problem is I know I will massively over engineer it -
so I thought I'd ask some advice!
 
Description
Here's a pretty basic picture of the rack, with dimensions in mm. The black lines I was going to make out of small (?15mm) box section, with the
rods for the boards (blue) in round tube (no idea of size for that) and the stiffening pieces (red) in the same round tube.
It will be secured in the back of a vw transporter, and will carry at most 6 boards, each weighing max 10kg (actually more like 7.5kg each)
Any suggestions regarding gauge of steel, or other constructive criticism appreciated - first thing like this I've made - will be mig welding it
together...
Thanks!
Chris
Spoing! - the sound of an irony meter breaking...
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blakep82
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| posted on 27/3/08 at 12:40 PM |
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i'd be surprised if 1mm gauge too thin.
if you think abou the original book chassis made of 1.6 mm and all the loads and stresses on a chassis, this rack will take none of that.
i'd say 1mm, but you could probably go to 0.8 or maybe even 0.6mm
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MikeR
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| posted on 27/3/08 at 12:57 PM |
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what have you got available and what can you weld?
0.6mm would probably more than do the job, its just be surprised if you could weld it well enough without TIG (no experience but i keep hearing how
hard it is to mig really thin stuff).
I'd prob go 1mm as the thinnest just so i could manufacture it.
How are you going to stop the boards sliding?
How are you going to stop the entire thing sliding? If you're bolting it to the floor with a bolt in each corner you don't need the red
floor line - although its prob a nice idea.
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chrsgrain
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| posted on 27/3/08 at 01:02 PM |
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I can gas weld, but will practice mig on some bits until I'm happy...
Will be buying the steel in, so can choose - obviously the cheaper the better! The boards will be strapped down onto foam wrapped round the bars, and
the whole thing will be strapped to the load securing eyes in the floor of the van - so it will be a bit easier to get out if needs be...
Chris
Spoing! - the sound of an irony meter breaking...
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iank
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| posted on 27/3/08 at 01:23 PM |
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I've no idea if this is a practical idea for surf boards, but wouldn't it be better to rotate your rack by 90 degrees so the boards are on
edge? (toast rack stylee)
That way the blue bars won't be under such large loads when you bounce over a bump.
--
Never argue with an idiot. They drag you down to their level, then beat you with experience.
Anonymous
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chrsgrain
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| posted on 27/3/08 at 01:27 PM |
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Have got them side on at the moment, but we think that flat will give us more free space in the van for other things...
Sounds like 1 mm wall is about right then?
Chris
Spoing! - the sound of an irony meter breaking...
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DarrenW
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| posted on 27/3/08 at 03:45 PM |
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Why not wood? CLS or fencing rails are cheap enough and probs OK for the job.
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chrsgrain
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| posted on 27/3/08 at 03:53 PM |
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Got a wooden one at the moment! Fancy trying something in metal as a project for welding, also as the metal can be thinner, should give me a bit more
space for boards...
Good idea though!
Chris
Spoing! - the sound of an irony meter breaking...
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