9

834 Chapter 8: Modifiers
Amount—
Controls the magnitude of the bulging
effect. Higher values effectively elongate the object
and cause the ends to curve outward.
Curve—Sets the degree of curvature on the bulging
ends. You can use this to control whether the bulge
is smooth or pointy.
Radial Squeeze group
These cont rols let you apply a s queeze effect
around the Squeeze gizmo’s local Z axis, which is
aligned by default with the object’s local Z axis.
Amount—Controls the magnitude of the squeezing
action. Values larger than zero tend to constrict
the "waist" of the object, and values less than zero
tend to bulge the waistline out, as if the object had
been stepped on.
Curve—Sets the deg ree of curvature into the
squeeze. Low values cause a sharp squeezing
effect, while high values create a gradual, less
pronounced squeeze.
Limits group
These controls let you limit the squeeze effect’s
extents along the loc al Z axis.
Limit Eff ect—Limits the extent of the squeeze effect
as defined by the Lower and Upper Limit sett ings.
Lower Limit—Sets the limit in the positive direction
along the Z axis.
Upper L imit—Sets the limit in the negative
direction along the Z axis.
Effect Balance group
Bias—Changes the relative amounts of bulge and
squeeze while retaining a constant object volume.
Volume—Increases or decreases the effects of both
SqueezeandBulgeinparallel.
STL Check Modifier
Select an object. > Modify panel > Modifier List > STL
Check
Select an object. > M odifiers menu > Mesh Editing > STL
check
The STL Check modifier checks an object
to see if it’s correct for exporting to an STL
(stereolithog raphy) file format (page 3–588).
Stereolithography files are used by specialized
machines to produce prototype physical models
based on the data in the STL file.
Tocreateaphysicalmodel,anSTLfilemusthave
a complete and closed surface. Using STL Check
to test your geometry before you export it can sav e
timeandmoneywhenthefileisusedtocreatethe
physical model.
STL Check errors.
1. Open edges
2. Double face
3. Spikes
4. Multiple edges