[quote author=lookang link=topic=2084.msg8289#msg8289 date=1310479597]
made it animate and the slider values follow the motion now
generated using ejs 4.2.7 load in MacOSX as the ejs4.3.3.2 didn't load in MacOSX.

the physics looks wrong though, see at the http://en.wikipedia.org/wiki/Gimbal[img]http://upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Gyroscope_operation.gif/250px-Gyroscope_operation.gif[/img]. i suspect  it is the inner ring that rotates in one direction, while the middle ring is coupled to inner ring and the outer ring is coupled to the middle ring.
what you are think?

[/quote]Thanks again for your great attention to my research need of gimbal model. Yes you are correct. The model in the picture is not right. Sorry that I did not mentione it. I can immagine how  many hours both of you spent on this project. I greatly appreciate all that and also think that adding the "cylinders" are very useful ldea of yourself.  However, the three rings Roll, Yaw and Pitch should rotate independantly to each other. Your construction is quite sophisticated. I need actually more simple one as that at http://www.yb2normal.com/DIYsteadicam.html
and the degree of freedom (actually mode of rotation of the rings) is given clearly at http://www.highballblog.com/2010/05/diy-glidecam-update-gimbal-handle.html
Please look at the clip. Many thanks again and best regards. I hope you will be so kind as to modify your applet.egabev.