This model is constructed using Part workbench and Geometric Primitive shape
Helix. A Rectangle Sketch is used to define the cross section of the blade and
the Sweep function is used to profile the sketch using Helix as the path.
Create a Cylinder, with Radius = 20 mm & Height = 30 mm.
Create a Sketch in Part Design Workbench.
Draw a Rectangle as below.
Create a Helix in Part Workbench with dimensions as below.
Click on Sweep profile function.
Select the rectangle sketch as the profile.
Click Sweep Path and select the Helix in the model space and click Done
Select the corner edge of the blade and apply fillet with Radius = 15 mm
Select the other edge and apply fillet with Radius = 15 mm
Select the edges of the top face of the blade and apply fillet with
Radius = 2 mm
Rotate the model and Select the edges of the bottom face of the blade
and apply fillet with Radius = 1 mm
Duplicate the blade and change the Z-axis angle to 120°
Duplicate the blade and change the Z-axis angle to -120°
Hide all the planes with the copied blades
Select the top edge of the cylinder and apply fillet radius = 5 mm
Set the appearance of the cylinder as per your preference
Select the 3 blades and set the appearance as per your preference
