Parameterized Elbow pipe

OpenSCAD script to generate parameterized elbow pipe.
I've created it for my woodworking dust collection system, but i believe it will work in many applications.

You can define:

• wall thickness
• first connector outer diameter / length
• second connector outer diameter / length
• height of the inner / outer end ring on both connectors
• elbow angle / radius
• diameter reduction angle

Attached stl files are just examples