>It occurred to me that when attaching a steel plate to a concrete
>pier the contact zone isn't going to be perfect, concrete being the
>rough stuff it is. And it is unlikely to be perfectly level, either.
>SO I thought, why not use a piece of lead sheet between the concrete
>and the steel as a way to take up the slop and provide a medium which
>can be shaved a little to achieve perfect level. The only problem I
>see is that the lead might eventually flow out and set the bolts get
>loose.

>The other option, of course, is an extra nut below the plate. But
>that put all the force on the bolts and none on the concrete itself.
>That seems to me to be inviting vibration.

>Comments?

>Bill Arnett

If you look at the way I fixed the base of mine it may be of interest

http://www.eee.bham.ac.uk/joness/lx200/lxnow.jpg

Explanation under http://www.eee.bham.ac.uk/joness/lx200/mylx.htm

Brandon S. Jones

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