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...
Rescued attachment Bone eye.JPG

FWIW, mine are worse depends on the bushes you use. i personally wouldnt be bothered.

You'd probably find that they will bend more than that in use....

David

Thanks.
I imagine they will probably bend a bit in use, but won't this just increase the torque action on the weld?
Pat...

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

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.

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.