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Green Belt: Design of Experiments
The Catapult Challenge: DOE in Action
Your goal is to hit the target at 200cm. Use 2^3 Factorial Design to test three variables at once, instead of simple trial-and-error.
Experiment Instructions:
1. Try different combinations of Angle, Stop Pin, and Band.
2. Use the Auto-Run (Beaker) button to quickly generate all 8 combinations.
3. Observe how the Main Effects plot calculates the impact of each factor.
Catapult Settings
Factor A: AngleLow (30°)
Factor B: Stop PinPos 2
Factor C: BandRubber
200cm
Design Space (2³)
(1)
a
b
ab
c
ac
bc
abc
Angle (A)
Stop (B)
Band (C)
Cube Plot (2³)
Light up all 8 corners to complete the Full Factorial Design
| Run | A (Angle) | B (Stop) | C (Band) | Result (Y) |
|---|---|---|---|---|
| No data. Launch the catapult. | ||||
Main Effects Plot
Cannot Calculate Effects Yet
You need data for BOTH High (+) and Low (-) settings to see the effect of a factor.