Larger bearing diameters can help the damping-time issue a lot, even with undersized arm sections or an undersized unit in general. --- Canopus56 <canopus56@yahoo.com> wrote:
Here's some photos of a beefier parallelogram bino mount that may interest you:
http://www.astro-tom.com/projects/binocular_mount.htm I've seen this one. Again the problem is an out-of-balance condition with the binocular yoke itself- eccentric loads lateral to the plane of the parallelogram. He uses four arms, but as the bino swings from one side of the arm to the other, the whole assembly can twist. I avoided this with a 3-arm arraingement- a triangle is much more resistant to torsional loads than a rectangle. I'm winterizing the house and yard this week, as well as painting a couple of rooms, but as soon as I get the domestic projects out of the way, I'll post some good parallelogram shots on my Gallery page. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com