[photo-3d] RBT mount problems

[Paul Talbot <ptww@xxxxxxxxx>]

"Dr. George A. Themelis" wrote:
> 
> >also get loose in the channel groove which can cause the chips
> >to shift horizontally.
> 
> One tip is to "pinch" the top and bottom ends of the rails
> with the sharp end of the tweezers.  Then they stay tight.

Pinch the rails with tweezers?  How much effect can you
have on the rails with tweezers?  I've heard of using
pliers to squeeze the rails to try to broaden them to
take up the slack.  Can you give any more details on the
tweezers technique?

> This tip is especially useful for those who use RBT mounts.
> There has been at least one batch of 7p mounts where one
> channel was rather wide, resulting in easily sliding rails.

I've had a lot of trouble with 4P.  An entry to a Detroit
club competition arrived with one chip wildly out of place.

A piece of silver mylar tape does wonders to lock a
wandering pin bar in place, once its position is set.
(See next post also.)

Paul Talbot