How to reduce the inner hole diameter

How to change the diameter of the inner hole?

change inner diameter.3dm (78.7 KB)change%20inner%20diameter

select it by pressing Ctrl + Shift + Left mouse button and then scale it using the gumball or the command Scale2D

1 Like

Hello Hungwai,

Do you want the overall diameter of the tube to remain the same ?
Thank you,

change inner diameter 1.3dm (98.4 KB)

I got it, I don’t know that I can select face by Ctrl + Shift. Thanks!

Thank you.