Stratasys Objet500 User Manual page 66

Objet500 User Guide
Manual
You can change the position of objects on the build tray—even if they were
Positioning
inserted with the Orient Automatically option. Tools for changing the
position of objects are presented in "Manipulating Objects on the Tray" on
page 5-35.
The orientation of models on the build tray affects how quickly and efficiently
they will be produced by the printer, where and how much Support material
is used, and whether or not model parts will have a glossy finish. Therefore,
you should consider a variety of factors when deciding how to place models
on the build tray, using the following positioning rules.
X-Y-Z Rule
This rule considers a model's outer dimensions.
➢ Since the print heads move back and forth along the X-axis, the printing
➢ Any surfaces that come into contact with Support materials become matte.
➢ Since models are built up, on the Z-axis, in 16- or 30-micron layers
➢ Since the print heads measure about 2 inches (5 centimeters) on the
Tall-Left Rule
This rule considers models where, after being orientated on the build tray
according to other considerations, one side is taller than the other.
➢ Since the print heads move along the X-axis from left to right, taller
The following rules are based on the fact that Support material is not
required on the top of the printed model.
DOC-07027 Rev. E
time along this axis is relatively short, compared to printing time along the
Y-axis and Z-axis. From this point of view, it is advisable to place the
object's largest dimension along the X-axis.
(according to the printing mode), it is very time-consuming to print a tall
object. From this point of view, it is advisable to place the object's smallest
dimension along the Z-axis.
Y-axis, models measuring less than this (on the Y-axis) are printed in one
pass. From this point of view, it is advisable to place the object's
intermediate dimension along the Y-axis.
sections on the right require the print heads to scan unnecessarily from
the left until reaching them. If, on the other hand, the taller sections are
positioned on the left of the build tray, the print heads only have to scan
the model until printing these sections—once the lower parts have been
completed. Therefore, you should position the taller side of the model,
when possible, on the left.
5 Using Objet Studio
5-33