Before you separate them make a clay, wax, or plaster mold ?
-jeff
-------------- Original message from Chuck Norcutt <chucknorcutt@xxxxxxxxxxx>:
--------------
> Use the cable tie and insert paper shims (maybe a paper cylinder) to
> make up the diameter difference on the rearmost element. Just don't
> overlap the ends of the piece forming the paper cylinder. Maybe you can
> even glue the paper cylinder to the inside of "tie" such that it's
> offset the proper amount ot clear the front element.
>
> On second thought, cinching up a cable tie seems to be a pretty crude
> exercise on a little part you're trying to hold stable. How about a
> narrow strip of springy shim brass to take the place of the cable tie.
> Curl it into a cylinder so that it springs back on it own (gently) and
> holds all in place.
>
> Chuck Norcutt
>
> swisspace wrote:
>
> > No Chuck you were not mistaken, I was thinking along those lines
> >
> >
> > Now I am about to seperate the elements on the rearmost lens, I need to
> > find some way of centering them, unfortunately the rearmost element in
> > the doublet is a fraction smaller than the other one, I guess 2 thou
> > (can't judge it in metric) around the diameter, I think it could be
> > placed fairly accurate by eye, but if I can work out some sort of form
> > to hold it then I would be happier, I read of one guy using a cable tie
> > when they were the same size.
> >
> >
> > Ian
> >
> >
> > Chuck Norcutt wrote:
> >
> >>By foot cream I took Swissspace's meaning to be an anti-fungal cream for
> >>"athlete's foot". Maybe I was mistaken.
> >>
> >>Chuck Norcutt
> >
> >
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