3D Systems, Inc.
20
p/n 76-D020 Rev. A
PRE/POST BUILD CHECKLIST
Print Job Prep
Perform Daily User maintenance tasks, see User Maintenance checklist for weekly, monthly checklist
Daily/Every Print
•
Laser Window, inspect and clean if needed
•
Laser Window Assembly O-Rings
• Consumable replace as needed
• PM replace (1yr)
•
Black body, inspect and clean if needed
•
Inner Chamber door, clean seal and window
•
Chamber interior including heater trays should be wiped down .
NOTE: Both inner and outer door must be closed (interlocks made) in order to move the part piston or roller .
Opening a door or an interlocked cover such as the overflow cover or blackbody cover will cause the contactor
to drop out . If the piston or roller is moving when this happens you will need to re-home each of them .
NOTE: When ProX SLS 6100 is idle, keep inner and outer doors closed, and all interlocked covers on so that the IR
core heater remains on and the IR core is at a stable temperature .
3D Sprint build packet preparation
Follow normal best practices for part placement and orientation . See
Material Guide
for specific instructions.
Additional Hints:
•
Large cross-sections should be placed at higher z-heights to reduce occurrence of post-build curl .
•
If cross-section is large (12,500mm2) it should be rotated to enough so that the area being scanned on each layer is re-
duced . This helps prevent short feeds and reduce layer time .
•
Keep scan time per layer as even as possible . If possible keep scan time under 30-35 seconds .
•
Use Build Time estimate and View Layer time to see scan time per layer
•
Geometry’s that are closed on all sides except one should be built with the open side up if possible to prevent trapped heat,
making breakout easier and extending the life of the powder .
Build Parameters: Print bed heaters
•
6 heaters (Q1,Q2,Q3,Q4, Right Inner, Left Inner)
•
One calculated Master Duty Cycle
•
Each of the 6 heaters uses a ratio of the Master Duty Cycle . The default ratio values should give a uniform part cake hard-
ness
•
If part cake at breakout is too soft overall, then increase the part heater setpoints by small increments (0 .5 to 1 .0
degrees)
•
If part cake at breakout is too hard overall, then decrease the part heater setpoint by small increments (0 .5 to 1 .0
degrees)
•
Be aware that changing the ratio for one heater may require changes to the ratios of other heaters in order to maintain the
balance of the heaters.
•
IF making adjustments make small incremental changes of 2%. Increasing/decreasing the ratios by larger amounts will
require a change in part heater setpoint.
•
Feed Powder amount
•
This value is the rotation of the Feed Roller (located just under the feed hopper)
•
This should be adjusted so that the traverse roller moves enough powder across the part bed to cover all the scanned
area and deposit a small amount in the return piston . If scanned area is very similar on each layer, one feed amount
for entire build stage will be good . If scanned area varies a lot from layer to layer then use an amount that will work for
the layers with the larger area .