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Author Metal Working - Can any one help (waterjet, 8mm aluminium)
AK
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10th Mar 11 at 14:34   View User's Profile U2U Member Reply With Quote
I'm needing some parts made up for rear wing uprights. 2 for now but with scope for more if the 2 work

I'm thinking 8mm aluminium sheet in the following design

Knocked up a couple of diagrams, some roughly in CAD






Does anyone do this as a job, or know someone that can do it?
Robin
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10th Mar 11 at 14:51   View Garage View User's Profile U2U Member Reply With Quote
Premier laser cutting.

You'll need a better drawing though lol
gazza808
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10th Mar 11 at 14:52   View User's Profile U2U Member Reply With Quote
Would also like to know,
As I have a fair few bit's I'd like cut out at some point,

I did have a google and a lot of places will do it, and if you can do your own cad drawing it puts the cost down greatly.
RichR
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10th Mar 11 at 14:54   View Garage View User's Profile U2U Member Reply With Quote
I wouldn't have sharp corners; that's where your inherent weak points will be; the cut out should have radiused corners. 5mm will be sifficient but any cracking will start at that point
RichR
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10th Mar 11 at 14:55   View Garage View User's Profile U2U Member Reply With Quote
Do you need some kind of T piece on top to fasten the wing to?
RichR
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10th Mar 11 at 15:06   View Garage View User's Profile U2U Member Reply With Quote


this? gives 55mm where you say no less than 50 and 83 where you say no less than 75
RichR
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10th Mar 11 at 15:08   View Garage View User's Profile U2U Member Reply With Quote
RichR
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10th Mar 11 at 15:10   View Garage View User's Profile U2U Member Reply With Quote
if that's ok, I can send you it in any CAD format 3D or 2D
AK
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10th Mar 11 at 15:55   View User's Profile U2U Member Reply With Quote
Thats spot on

2D and 3D would be good (dxf?) - ak@trackscotland.co.uk

thanks a lot
DaveyLC
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10th Mar 11 at 16:04   View User's Profile U2U Member Reply With Quote
Bit too thick for laser cutting if you want it done in alloy.. Water cutting will a safer bet and its generally cheaper.

check out http://www.cncwaterjet.co.uk
RichR
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10th Mar 11 at 16:14   View Garage View User's Profile U2U Member Reply With Quote
sent
AK
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10th Mar 11 at 16:20   View User's Profile U2U Member Reply With Quote
FlamingCorsa
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10th Mar 11 at 17:11   View User's Profile U2U Member Reply With Quote
impressive stuff lee :-)
RichR
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10th Mar 11 at 17:20   View Garage View User's Profile U2U Member Reply With Quote
not really; it just meant I didn't have to do "real work" for a bit
AK
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10th Mar 11 at 17:28   View User's Profile U2U Member Reply With Quote
sent off some quote requests

Will keep the thread up to date with progress and final product(s)
AK
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11th Mar 11 at 15:27   View User's Profile U2U Member Reply With Quote
thoughts on LiVe LeE's design in 6mm Aluminium with an X brace or guide wires?
RichR
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11th Mar 11 at 15:29   View Garage View User's Profile U2U Member Reply With Quote
its not my design; its yours put into CAD; I'm not putting my name to it
RichR
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11th Mar 11 at 15:30   View Garage View User's Profile U2U Member Reply With Quote
I thought about machining the side plates in by 1.5mm per side; set out 5mm from the extremity of the cut outs and filleted; took each one down by 90grams, from 465g to 375g
AK
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11th Mar 11 at 15:36   View User's Profile U2U Member Reply With Quote
it not for weight saving one place only has 6mm in stock
RichR
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11th Mar 11 at 15:40   View Garage View User's Profile U2U Member Reply With Quote
I was just bored tbh

how does the wing attach to this and this attach to the tailgate?
AK
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11th Mar 11 at 15:53   View User's Profile U2U Member Reply With Quote
at the moment the wing supports are towards the centre of the wing blade (1800mm or so) and secured on the boot lid.

The boot lid is GRP with an aluminium angle bar brace underneith to support the wing.

The new uprights are to be mounted on the rear 1/4s (tabs welded on with two holes for fixing the new uprights to). This will allow all the downforce to but transferred to the chassis rather than just deflecting the frame and boot skin!

The wing will also be in-line or above the roof line to be more effective
RichR
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11th Mar 11 at 16:00   View Garage View User's Profile U2U Member Reply With Quote
potentially a lot of side forces acting on the wing but that said 6mm Alloy shouldn't shear, its more likely to bend noticeably.

One way to find out!! Do it; then get 8 if it needs it
AK
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11th Mar 11 at 16:03   View User's Profile U2U Member Reply With Quote
the X wire should prevent any shear as it'll be tethered to the 'base' welded tab onto rear 1/4
RichR
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11th Mar 11 at 16:14   View Garage View User's Profile U2U Member Reply With Quote
be 'orate; get it ordered!
RichR
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11th Mar 11 at 16:27   View Garage View User's Profile U2U Member Reply With Quote
If you need anything else doing, drop me a sketch and I'd be happy to turn it into a CAD file for you

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