speedyxjs
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| posted on 20/2/10 at 09:16 AM |
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Bolting to Chassis
Hypothetical situation:
If one drills two holes in a straight section of a locost chassis, would the loss in strength be recovered by bolting another section of RHS to it
through the holes?
How long can i resist the temptation to drop a V8 in?
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Mark Allanson
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| posted on 20/2/10 at 09:38 AM |
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I don't quite see what you mean, but welding a tube inside the holes would restore much of the strength, and prevent any crush if you are
bolting through
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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speedyxjs
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| posted on 20/2/10 at 09:46 AM |
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quote:
Originally posted by Mark Allanson
I don't quite see what you mean, but welding a tube inside the holes would restore much of the strength, and prevent any crush if you are
bolting through
Im really not good at explaining things like this 
I want to make a frame to hold my front wings but will need to drill into the chassis to bolt the frame to it. Im just worried about weakening the
chassis. I didnt know whether in bolting the frame to the chassis would restore some of the strength lost in drilling the mounting holes.
How long can i resist the temptation to drop a V8 in?
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clairetoo
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| posted on 20/2/10 at 09:54 AM |
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A better solution would be to weld a bracket to the chassis , and bolt the frame to that .
I NEVER drill through a chassis tube just to bolt something on 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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designer
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| posted on 20/2/10 at 10:08 AM |
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Yes, alway weld brackets to chassis members, never drill.
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ReMan
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| posted on 20/2/10 at 10:15 AM |
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quote:
Originally posted by clairetoo
A better solution would be to weld a bracket to the chassis , and bolt the frame to that .
I NEVER drill through a chassis tube just to bolt something on
Which is why I was concerned of this!
http://www.locostbuilders.co.uk/viewthread.php?tid=130451
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MakeEverything
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| posted on 20/2/10 at 10:23 AM |
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Depends which tube youre drilling.
If you drill into the flat side of a tube under compression then it wont make a great deal of difference id say. You need to consider the additional
forces at accelleration, cornering and braking though, as this compression force might change in different circumstances.
If you were to bush the hole that youve drilled, then thats the proper way of doing it. Drill the hole bigger and weld a bush into it.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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speedyxjs
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| posted on 20/2/10 at 10:25 AM |
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Looks like i have some welding to do this afternoon then
Cheers guys (and girls)
How long can i resist the temptation to drop a V8 in?
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