Oven Temperature Control - Stratasys FORTUS 360mc Service Manual

Oven Temperature Control

Purpose
1.
Controls the cooling rate of the extruded filament.
A.
B.
2.
Components
A.
B.
C.
D.
FORTUS 360mc/400mc Service Manual
Cooling rate too slow:
• Individual layers will 'spread' - will not have the correct slice
height.
• Upper layers will sink into lower layers creating part
distortion.
Cooling rate too fast:
• Layers will not adhere to one another.
• Material shrinkage occurs - parts can warp, curl, and fail to
adhere to build sheet.
(Figure 2-8):
Oven chamber:
• The build area of the system.
Oven heaters:
• Six 230V AC heater elements wired in three groups of two
elements.
• The two elements of a group are wired in parallel.
• Each group of two is connected to the AC board with a high
temperature wiring harness.
• Ground is attached to the heater assembly frame.
Oven plenum:
• A series of three ducts used to channel and circulate heated air.
• Ducts intersect at bottom corners of oven.
Oven heater fans:
• Two 230V AC, high temperature fans circulate air through
oven.
• Located at bottom right side of plenum.
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