Re: Motion Analysis

"Shankar Venkateswaran" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
: Hello,
: Actually I don't have admin rights for the systems I am working on. So
: I will have to forget about installing. I don't have access to the
: tutorial and was refused to help with that. Basically I work in UNIX
: platform.

Where did I get the idea you were still in school using the educational version.
Too bad you can't get to a school that has it. Worse, still, that your company
would probably benefit from people knowing it but puts obstacles in the way of
learning it.

: I think the problem is with the assembly I guess. Why I say this because there
are
: other mechanism which run successfully

How are you running the mechanism? With Mechanism Design? What rev are you on, I
don't think that's ever come up and whatever we say, however you describe the
problem is very version dependent. Since about rev 20 or 2000i when PTC introduced
MD, they've been moving Mechanica Motion code and functionality into Pro/e MD.
And, as meld_b pointed out, MM is going away at some point. So what I'm saying is
forget MM and concentrate on MD, it's the future and it's presently the place
(since about i-squared) to debug and investigate the problem you are having,
especially if you suspect the problem is in the assembly. Or, it could easily be
in a motion definition, values in a formula describing movement characteristics
that are impossible. The place to test this is in MD. In fact, one quick way to
see if you've assembled everything correctly is to go into MD
(Applications>Mechanism), find the Drag Component function (where you can create
snapshots and define intial conditions), click on the sliding component and drag
it. Sometimes this works better with 'Drag point' than with 'Drag body'. If it
moves at all, the problem will likely be in a drive motor. If it won't, then you
have to back track through the assembly connections to make sure nothing is locked
with improper constraints and to make sure a body isn't locked altogether. One
final hint: the points in those parts should not be used for assembly, as a
general rule. They were more commonly used earlier in place of current pin,
bearing and ball joint type connections. They've been replaced and using them may
only confuse things.

David Janes