Lenze Cam Designer Professional getting started - Handbuch (Seite 69)

Cam Designer Professional
L
67 Cam Designer Professional DE/EN 2.0
Collision zone
The collision zone graphical object can be used in Object Input Mode to define sections which must be
avoided to prevent mechanical collision.
In Curve Mode, the objects are connected to form a closed cam profile. After this, a check is made to
ensure that the collision zone has been avoided. If the collision zone has been violated, an error message
is indicated and the corresponding object is selected.
Various possibilities are provided for manual correction if the collision zone has been violated. The
following approach is recommended (proceed in this order):
1. Try to modify the objects which have been entered manually in Object Input Mode and bound
the problematic cam profile segment such that the collision zone will no longer be violated
when the automatic calculation is repeated. Try to change position values - lengthen or shorten
the objects - or change the values for velocity or acceleration.
2. If step 1 is not possible or does not solve the problem, add an additional object (point or line) to
ensure that the calculated cam profile meets the requirements. Please observe that an
additional object limits the degrees of freedom of the automatic calculation. Although the
collision zone is no longer violated, the generated cam profile will generally be less smooth
than before.
3. If step 2 is not successful, you can cut an automatically generated cam profile segment, e. g. a
polynomial 5, in Connections Mode and paste it into Object Input Mode. After this, you can
change the cam profile parameters manually and repeat the automatic calculation until the
collision zone is no longer violated. In this case, it is likely that the resulting cam profile will no
longer be jolt or jerk-free.
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