Re: [ATM] Mirror Cells - Springs vs. Push/Pull

["Don Clement" <clement.focuser@verizon.net>]

> --- jeffmorgan@mindspring.com wrote:
> > I was wondering if there was
> > any comments on using collimation pull bolts opposed
> > by springs (which seems to be the predominate
> > method) vs. using push/pull bolt pairs
>
> Don's idea sounds great but might be more hi-tech than
> you need.

Actually my solid flexure collimator/mounting is not that high tech. Each of
the three rod-nut assemblies consist of just three basic parts: the rod made
from stock 3/8-24UN threaded SS rod, the nut made from ½" SS hex stock, and
the housing, made from rectangular 6061 aluminum stock. I used a vertical
mill and lathe to machine the parts. I believe that the machining could be
done using only a lathe, 3/8-24UN  and hack saw,  and possibly a drill
press. This minimalist idea really works quite well. To collimate, just undo
the lock bolts, and turn each nut with a wrench. When collimation is
complete, simply tighten the three lock bolts, which do not effect
collimation but securely lock the rods in place.



Don Clement

Running Springs, California

_______________________________________________
ATM mailing list http://www.atmlist.net/