design a "valve" for watercooling reservoir

[nothingTV]

I finally got around to edit and publish a video about a project I did early this year.
The purpose was a screw with a tiny hole (a canal that lets air flow but should hold back water as far as possible). Yeah, not rocket science but I took the opportunity to show how I used AC3D to design the model.

https://www.youtube.com/watch?v=P-0RyAkk6DQ