SolidWorks 2010 Bible

(Martin Jones) #1

Chapter 6: Getting More from Your Sketches ..............................................................................


The Not Solved condition often accompanies Overdefined. Not Solved typically refers
to a dimension or relation that cannot be applied because of the conflict. The lower-right
corner of the screen and the status bar show flags warning that the sketch is overdefined,
as shown in Figure 6.2.
When an overdefined situation exists, all the relations and dimensions in a sketch often
become overdefined. This can look like a daunting task to repair, especially when the
entire problem is caused by a single relation. Do not automatically delete everything.
Instead, try deleting or suppressing the last dimension or relation that was added, or a
single relation that looks suspect. It is also a good idea to delete red relations before
deleting yellow ones. Yellow simply means conflict, while red means a condition that
cannot be applied. You can suppress a dimension by setting it to Driven in the right
mouse button (RMB) menu, and you can suppress relations in the Display/Delete
Relations PropertyManager.

FIGURE 6.2
An overdefined sketch

l External. External relations connect with an entity outside the active sketch. This
includes the part Origin, or any model edges. The term external relations can also signify
any relations outside of the part.

l (^) Defined in Context. Any relation between features in one part in an assembly and
another part is considered an in-context relation.
l (^) Locked (Broken). External relations (outside the part) may be locked or broken to
increase speed and to lock out parametric changes. There is no advantage of breaking
relations rather than locking them. Both are ignored, but locked relations can be
unlocked; broken relations can only be deleted.
l (^) Selected Entities. Sketch relations are shown only for the selected sketch entities.
Cross-Reference
In-context design, also called top-down, as well as locked and broken relations, is covered in detail in
Chapter 16. n

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