Helix Challenges
Create the propellor by modelling the central hub , then sketch the blade profile shown in Section A‑A.
Use the 7.5 mm pitch and 0.33 revolution values to generate a partial helix.
Use a radial array around the hub axis to create the remaining blades.
Learning Intentions
Create a partial helix using pitch + revolution controls.
Sweep a blade profile along a helical path.
Use radial array to replicate a swept feature.
Combine helix, sweep, fillets, and hub geometry.
Success Criteria
Helix uses correct pitch (7.5) and revolution (0.33).
Blade sweep follows the helix cleanly with no twisting.
R5 fillets match the drawing.
Circular pattern produces evenly spaced blades around the hub.
Challenge Drawing
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