PVC reducing pipe

我使用ChatGPT，幫助我達成，在OpenSCAD中實現我想要的功能

可以利用他來連結不同大小的圓管，透過定制的方式，來達成不同圓管的結合

要注意是我是使用圓的內圓為直徑為變數，而外圓則需上加上壁厚

I use ChatGPT to help me achieve what I want in Opencad

It can be used to connect round tubes of different sizes, and the combination of different round tubes can be achieved through customization.

It should be noted that I use the inner circle of the circle as the diameter as the variable, and the outer circle needs to add the wall thickness.