Stratasys developed the Fortus 900mc™ Acceleration Kit to provide a
significant throughput enhancement for the Fortus 900mc 3D Printer.
It makes use of a new model tip, the T40A, to enable larger slice thicknesses
that dramatically decrease build time. The larger tip size enables a throughput
increase 2x-3x over the T20 tip, depending on part geometry.

Common applications where the Fortus 900mc Acceleration Kit can
be beneficial:
• Prototypes
− Concept
» Large mockups
− Functional
» Fit tests
» Large panels
• Manufacturing
− Large near-net shape parts
» Composite tooling
» Thermoforming patterns
− Jigs and fixtures
− Surrogate parts
• Production parts


Larger slices and road widths along with the increased build rates enabled by
the T40A tip can create certain conditions that customers may find undesirable
(Figure 2). These conditions include:
• Melting due to shorter layer times
• Increased stair stepping due to thicker layers
• Lost small/fine feature detail due to wider toolpaths:
− Small text
− Sharp corners (geometry and toolpath width-dependent)
• Increased minimum wall thickness compared to other tip sizes

To alleviate this, consistent, high-quality parts can be achieved by adjusting to
the specific system and material build characteristics:

Pre-processing – In addition to standard STL processing procedures,
proper configuration of the modeler and selection of support structure
parameters can be used to significantly improve build quality.
Machine preparation and printing – When packing parts for a job using
Control Center™ software, proper placement and orientation of the part
on the build platen and machine maintenance considerations are critical to
Post-processing – Proper part removal from the build chamber and proper
support removal technique can improve user experience and quality of the
resulting parts.

For more information, download the full best practices document here.

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