Avoneer
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| posted on 2/5/05 at 09:51 PM |
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Wishbone eye accuracy?
How accurate do they have to be, given the Locost ethos?
It's just that on one of the ones I have, one of the eyes is a couple of mill above the centre line - how bad can/could it be?
Cheers,
Pat...
 
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JoelP
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| posted on 2/5/05 at 09:53 PM |
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FWIW, mine are worse  depends on the bushes you use. i personally wouldnt be bothered.
Beware! Bourettes is binfectious.
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flak monkey
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| posted on 2/5/05 at 09:54 PM |
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You'd probably find that they will bend more than that in use....
David
Sera
http://www.motosera.com
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Avoneer
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| posted on 2/5/05 at 10:19 PM |
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Thanks.
I imagine they will probably bend a bit in use, but won't this just increase the torque action on the weld?
Pat...
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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locogeoff
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| posted on 2/5/05 at 11:40 PM |
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Having similar problems myself
see http://www.locostbuilders.co.uk/viewthread.php?tid=25098 I got loads of ideas there
I was thinking about rigging up a couple of brackets on a piece of RHS to see if the wishbone rotates through its range of movement smoothly. If the
eyes are too far out of concetricity then the bone will be rigid in the mountings and therefore unsuitable for the purpose it was intended for
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Rorty
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| posted on 3/5/05 at 01:26 AM |
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I don't believe this! They must be aligned in both planes! Otherwise the 'bone won't pivot as it's supposed to and additional
stress will be apparent in everything from the chassis to the mounts, to the bones etc. Why make trouble and safety concerns for your self with
something you're going to trust your life with?
Make a jig to assemble the wishbones in and do it properly.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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britishtrident
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| posted on 3/5/05 at 06:59 AM |
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This one the many reasons big manufacturers use rubber bushes with a fair bit of compliance. The harder the bush the more the accurate aligment has to
be -- hence the use of self aligning rose joints on full house racers.
If it were mine I would do some gentle hot bending using a soft oxy-accetelene flame for controlled heat, but the effect on the mechanical properties
of the steel this would depend on the exact grade of steel the wishbones were made of.
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