Showing results for 
Search instead for 
Did you mean: 
Showing results for 
Search instead for 
Did you mean: 

Community Tip - Did you know you can set a signature that will be added to all your posts? Set it here! X

Mechanism cam follower...


Mechanism cam follower...


Is there a way to create a cam follower that is defined from TWO
SURFACES? I have some kinematic analysis to do on EXISTING
parts/models. I have a slide part with a roller following a cam. The
cam is a three dimensional surface and the follower's slide axis is not
coplanar to the axis of the cam. It's odd motion... The designer used
a driver on the cam to produce a trace curve on the cam and then used
that to create the cam surface. Unfortunately, he defined the cam
surface on an orthogonal plane which isn't correct.

What I would LIKE to do is set up a cam follower with the actual roller
surface "finding" it's tangent contact point with cam profile surface.
Then I can analyze the resulting motion to see how far off from the
"perfect" motion it is...


Paul Korenkiewicz
FEV, Inc.
4554 Glenmeade
Auburn Hills, MI., 48326

This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.

I've done this - once.  You define all of your mechanism constraints in
standard assy mode, except the cam.  Then you need to go into mechanism
mode to define the cam.  As I recall it wasn't that hard, once you got
through the typical Pro/E eccentricities.  I think once in mechanism, a
sub tree appears or maybe new branches in the standard tree.  There's a
'cams' branch and I think you maybe RMB on the branch to define a new
cam?  I'm afraid I don't remember all the details, hopefully that'll get
you pointed in the right direction.

Doug Schaefer
Doug Schaefer | Experienced Mechanical Design Engineer