This webinar will be available afterwards at
designworldonline.com & email
Q&A at the end of the presentation
Hashtag for this webinar: #DWwebinar
Before We Start
Moderator
Leslie Langnau Design World
Presenters
Ben Klein Objet Ltd.
Bonnie Meyer Stratasys
Stacie Hoche 3D Systems
ProJet™ 6000 Accuracy • Digital self calibration
• Print accuracy rivaling CNC
Accurate
• Digital motion control • Closed loop monitoring
Precise
• <10 m resolution • Features as small as .3mm
High resolution
ProJet™ 6000 Accuracy
0
5
10
15
20
25
30
35-1
00 -90
-80
-70
-60
-50
-40
-30
-20
-10 0 10 20 30 40 50 60 70 80 90 100
Freq
uenc
y
Difference from nominal in microns
Accuracy is a combination of: -- System capability -- Material properties -- Compared to an absolute
-- 3 x 3 matrix of test parts -- 12 measurements per part -- 108 measurements -- 1mm to 32mm range -- Standard Deviation of <15 microns
ProJet™ 6000 Accuracy Thin walls that get progressively thicker in 10um increments
10 microns = 0.00039 inches
Result=1450 Dpi; 17.5m
1000m
1010m
How small of a increment can the system print?
ProJet™ 6000 Accuracy
• Machine Build Modes o HD - Fastest
o UHD – General purpose build mode
o XHD – Fine feature detail
ProJet™ 6000 Accuracy
• User adjustment to fine tune
part accuracy
o Shrink Compensation
o Line Width Compensation
ProJet™ 6000 Accuracy • Shrink Compensation
o X, Y and Z adjustments for material shrinkage due to the material cure process
o Values specified in the machine User Interface software
ProJet™ 6000 Accuracy • LineWidth Compensation
o Adjusts for the material cured line width
o Values very due to
• Print Head Characteristics
• Material
• Build Mode
o Values specified in the 3DManage setup Software
Faceted STL file
translated
with coarse
tolerance
• When creating an STL file, the goal is to achieve a balance between file
size and a fully-defined model with smooth curved geometries.
• You cannot build the model any better or smoother than the STL. So if
the STL is coarse and faceted, you will see it in the model.
File translated with
fine tolerance
CAD to STL - Maintain the Proper Resolution
• Divide the CAD files into shells early in the design process
Non-Connex:
Monolithic part, one material
Connex: Assure a distinct separation between the solid bodies:
Create an assembly of one or more parts
“Connexify” a Part
In order to support fine features, an auxiliary part can be
printed and removed later
Supporting Delicate Parts with Auxiliary Structures
+ =
Matte mode is intended to generate uniform surfaces. Ensure your model is
suitable for this mode.
Matte Vs. Glossy
To truly appreciate fine details on the surface, use VeroBlue or VeroGray
materials in the glossy orientation
Accuracy in Appearance
Fitting surfaces should be positioned facing up
No support material needs to be removed
Fitting Surfaces
Connex Technology enables testing of different values on
a single print
Print Several Materials on a Single Piece
All FDM Systems
Thermoplastics are stable over days, months or years ABS
Polycarbonate (PC)
Polyphenylsulfone (PPSF)
ULTEM
FDM – thorough analysis
27 measurements
12 parts per build
3 runs per machine
Repeated on 3 machines
108 sample parts 2916 measurements
Width
Nominal (3.000”,
76.2 mm)
Apr-2008
Actual
Aug-2011
Actual
Change over time
Sample 1 2.997” 2.997” 0.000” (0.00 mm)
Sample 2 3.001” 3.000” -0.001” (0.03 mm)
Sample 3 2.999” 2.998” -0.001” (0.03 mm)
Average 2.999” 2.998” -0.001” (0.03 mm)
Length
Nominal (5.000”,
127 mm)
Apr-2008
Actual
Aug-2011
Actual
Change over time
Sample 1 4.999” 4.998” -0.001” (0.03 mm)
Sample 2 4.998” 4.998” -0.000” (0.00 mm)
Sample 3 4.998” 4.996” -0.002” (0.05 mm)
Average 4.998” 4.997” -0.001” (0.03 mm)
Accuracy Over Time
Maintenance • Routine User Maintenance
o Keep System Clean
• Purge Area
• Build Envelope
o Replace Worn Components
• Tips – Odometer
• Tip Brush/Flicker
• Preventative Maintenance o 1-year and 2-year
Recap • All FDM Systems
o Stability and Repeatability
o Routine User and Preventative Maintenance
o Part Orientation
• Fortus 3D Production Systems o Tip-to-Tip Calibration
o Custom Scaling
More Information • www.stratasys.com/accuracy
o Download “Accuracy Myth” white paper
o Benchmark the process with your part
• Contact Stratasys Application Engineering • 855-693-0073 (U.S. toll free)
• +1 952-294-3888 (local/international)
Questions? Design World Leslie Langnau [email protected] Phone: 440.234.4531 Twitter: @DW_RapidMFG
Objet Ltd. Ben Klein [email protected] Phone: +1.972.52.889.2292
3D Systems Stacie Hoche [email protected] Phone: 803.326.4613
Stratasys Bonnie Meyer [email protected] Phone: 952.906.2244
Thank You
This webinar will be available at designworldonline.com & email
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