3D Systems, Inc.
Identify the exact X and Y dimensions of the part using a CAD program .
•
Most CAD programs and simple .stl file viewers will provide a way to view a part with its dimensions.
•
Make note of the actual X and Y dimensions as XCAD and YCAD .
Build and clean the part and take measurements of the finished part.
•
It is recommended to measure along the critical dimensions of the geometry, take measurements in multiple areas and take an
average of the values .
•
Measurements can be made using calipers or more advanced metrology methods .
•
Make note of the X and Y dimensions of the printed part and mark them as XPART and YPART .
NOTE: If the measurement of the finished part is different from the measurements of the CAD model, fine tune the
accuracy using scaling factors .
Determine Scaling Factor to use for the next build .
•
Use the following formula calculate the scaling percentage to be used on the fine tuning build:
X Scaling Factor = (XCAD - XPART) / XCAD* 100 (answer will be as a percentage)
Y Scaling Factor = (YCAD - YPART) / YCAD* 100 (answer will be as a percentage)
EXAMPLE:
X measurement of CAD model = 3 .000”
Y measurement of CAD model = 5 .000”
X measurement of printed part = 2 .998”
Y measurement of printed part = 4 .989”
X Scaling Factor = (3 .000 - 2 .998) / 3 .000*100 = 0 .067%
Y Scaling Factor = (5 .000 - 4 .989) / 5 .000*100 = 0 .22%
Enter Scaling Factor for adjustment build
1 . Open
ProJet Accelerator Client
software and select the
desired 3D printer system .
2 . Select the part to print .
3 . Open
Print Preview
to view the part . Select the part (color
should be yellow)
4 . Select the
Scale
Icon and enter the dialog box to enter the
above scaling factors .
5 . Uncheck the
Isometric Scale
button . This allows user to
make individual X and Y adjustments .
6 .
In the example above the X scaling factor should be 100% +
0 .067% = 100 .067%
7 .
The Y scaling factor should be 100% + 0.22% = 100.22%
8 . Enter these two numbers in the corresponding scaling boxes
for X and Y .
Build Part with Scaling Factors and measure
Additional iterations of adjusting scaling factors and taking measurements may be necessary with certain geometries .
WAITING ON SHRINK COMPENSATION
INFORMATION FROM WILSONVILLE .
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Summary of Contents for ProJet 2500
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