Parametric pipe reducer fitting

Parametric pipe “reducer” fitting:

I made this model to be able to create a tight fit for the outlet of my washing machine.

Feel free to customize this model for your own project :)

For any suggestions or question please leave a comment behind ;)

Key Features:

• Shaft:
  • A cylindrical base with a defined diameter (shaft_dia) and height (shaft_height).
• Top Section:
  • A larger diameter cylinder (top_dia) placed on top of the shaft.
• Hole:
  • A cylindrical hole that extends through the entire length of the shaft and the top section.

Parameters:

• shaft_dia: Diameter of the shaft base.
• shaft_height: Height of the shaft base.
• hole_dia: Diameter of the through-hole.
• top_dia: Diameter of the top section.
• top_height: Height of the top section.
• $fn: Resolution parameter, controls the number of sides used to approximate the circles. Higher values result in smoother curves.

Construction:

1. Union:
   • Creates a combined shape by joining:
     • The shaft cylinder.
     • The top section cylinder, translated to be positioned on top of the shaft.
2. Difference:
   • Subtracts the hole cylinder from the combined shape, creating the through-hole.