John P
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| posted on 22/5/10 at 01:17 PM |
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DeDion Tube Material
Whilst trawling the net I came across a report by someone who had apparently widened his DeDion tube using a section of scaffolding.
Any idea if this would be OK for a DeDion tube? It seems rather small on diameter and I’ve no idea what the steel spec would be but if OK would be
cheaply available.
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Mark Allanson
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| posted on 22/5/10 at 01:55 PM |
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I think it would also match a concrete floor pan!
Most use 75mm round 1.6mm wall
If you can keep you head, whilst all others around you are losing theirs, you are not fully aware of the situation
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John P
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| posted on 22/5/10 at 03:03 PM |
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Just casing the concrete floor pan now! Actually you pretty much confirmed ehat I thought but he was welding it to a GTS DeDion so I though it worth
asking the question.
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MikeR
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| posted on 22/5/10 at 03:38 PM |
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Quite a bit of twisting force goes through the tube and the shocks put a concentrated point loading into it. Caterham had to increase from 1.5 to (i
think) 2.5mm, id therefore be a little nervous on thin section. Mine is (i think) 2.5 mm but never yet used in anger.
Mike
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Lars
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| posted on 22/5/10 at 07:01 PM |
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I very roughly followed rorty's plans
http://www.locost7.info/files/suspension/RortyDeDionAxleAssembly.pdf
I used several offcuts of approx 6cm diameter with a wall from 3.5 - 4mm
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paulf
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| posted on 22/5/10 at 09:00 PM |
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I was looking at some scaffold pipe lying around at work last week , it was about 50mm OD and had a wall thickness of about 5mm.It would be strong
enough but was also galvanized so not easy to weld.
Paul.
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