Stratasys P750K, Руководство пользователя

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Using Objet Studio
5–26
DOC08010 Rev. A (DRAFT 1)
Automatic
Placement
After ȱ placing ȱ several ȱ objects ȱ on ȱ the ȱ build ȱ tray, ȱ you ȱ can ȱ let ȱ Objet ȱ Studio ȱ
arrange ȱ them ȱ before ȱ printing. ȱ This ȱ ensures ȱ that ȱ the ȱ objects ȱ are ȱ positioned ȱ
properly, ȱ and ȱ that ȱ they ȱ will ȱ be ȱ printed ȱ in ȱ the ȱ shortest ȱ time ȱ and ȱ with ȱ a ȱ
minimum ȱ of ȱ material.
To automatically arrange objects on the build tray:
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On ȱ the ȱ Tray ȱ Settings ȱ ribbon, ȱ click ȱ .
or—
From ȱ the ȱ Tools ȱ menu, ȱ select
Automatic Placement
.
The ȱ effects ȱ of ȱ automatic ȱ positioning ȱ are ȱ shown ȱ in ȱ the ȱ figures ȱ below.
Figure 5-32: Tray before objects are properly arranged
Figure 5-33: Tray arrangement after applying Automatic Placement
Manual
Positioning
You ȱ can ȱ change ȱ the ȱ position ȱ of ȱ objects ȱ on ȱ the ȱ build ȱ tray—even ȱ if ȱ they ȱ were ȱ
inserted ȱ with ȱ the ȱ Orient ȱ Automatically ȱ option. ȱ Considerations ȱ for ȱ
positioning ȱ objects ȱ are ȱ presented ȱ in ȱ “Model ȱ Orientation,” ȱ below. ȱ Tools ȱ for ȱ
changing ȱ the ȱ position ȱ of ȱ objects ȱ are ȱ presented ȱ in ȱ “Manipulating ȱ Objects ȱ on ȱ
the ȱ Build ȱ Tray” ȱ on ȱ page 27.
Model Orientation
The ȱ orientation ȱ of ȱ models ȱ on ȱ the ȱ build ȱ tray ȱ affects ȱ how ȱ quickly ȱ and ȱ
efficiently ȱ they ȱ will ȱ be ȱ produced ȱ by ȱ the ȱ 3D ȱ printer, ȱ where ȱ and ȱ how ȱ much ȱ
support ȱ material ȱ is ȱ used, ȱ and ȱ whether ȱ or ȱ not ȱ model ȱ parts ȱ will ȱ have ȱ a ȱ glossy ȱ
finish. ȱ Therefore, ȱ you ȱ should ȱ consider ȱ a ȱ variety ȱ of ȱ factors ȱ when ȱ deciding ȱ
how ȱ to ȱ place ȱ models ȱ on ȱ the ȱ tray, ȱ using ȱ the ȱ following ȱ positioning ȱ rules. ȱ
X-Y-Z Rule
This ȱ rule ȱ considers ȱ a ȱ model ȇ s ȱ outer ȱ dimensions.
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Since ȱ the ȱ print ȱ heads ȱ move ȱ back ȱ and ȱ forth ȱ along ȱ the ȱ X Ȭ axis, ȱ the ȱ printing ȱ
time ȱ along ȱ this ȱ axis ȱ is ȱ relatively ȱ short, ȱ compared ȱ to ȱ printing ȱ time ȱ along ȱ
the ȱ Y Ȭ axis ȱ and ȱ Z Ȭ axis. ȱ From ȱ this ȱ point ȱ of ȱ view, ȱ it ȱ is ȱ advisable ȱ to ȱ place ȱ the ȱ
object ȇ s ȱ largest ȱ dimension ȱ along ȱ the ȱ X Ȭ axis.
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Any ȱ surfaces ȱ that ȱ come ȱ into ȱ contact ȱ with ȱ support ȱ materials ȱ become ȱ
matte.
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Since ȱ models ȱ are ȱ built ȱ up, ȱ on ȱ the ȱ Z Ȭ axis, ȱ in ȱ 16 Ȭȱ or ȱ 30 Ȭ micron ȱ layers ȱ
(according ȱ to ȱ the ȱ printing ȱ mode), ȱ it ȱ is ȱ very ȱ time Ȭ consuming ȱ to ȱ print ȱ a ȱ
tall ȱ object. ȱ From ȱ this ȱ point ȱ of ȱ view, ȱ it ȱ is ȱ advisable ȱ to ȱ place ȱ the ȱ object ȇ s ȱ
smallest ȱ dimension ȱ along ȱ the ȱ Z Ȭ axis.
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Since ȱ the ȱ print ȱ heads ȱ measure ȱ about ȱ 2 ȱ inches ȱ (5 ȱ centimeters) ȱ on ȱ the ȱ
Y Ȭ axis, ȱ models ȱ measuring ȱ less ȱ than ȱ this ȱ (on ȱ the ȱ Y Ȭ axis) ȱ are ȱ printed ȱ in ȱ
one ȱ pass. ȱ From ȱ this ȱ point ȱ of ȱ view, ȱ it ȱ is ȱ advisable ȱ to ȱ place ȱ the ȱ object ȇ s ȱ
intermediate ȱ dimension ȱ along ȱ the ȱ Y Ȭ axis.
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For best results, arrange the tray with Automatic Placement , on the Tray
Settings ribbon, even if you inserted the objects with the Orient
Automatically option.
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The physical characteristics of each type of Model material you use can
affect the positioning of objects on the tray. Therefore, select materials
before running Automatic Placement .