Can we 3D Print a One-Way Check Valve?

Today I'm making a squeeze-bulb duster with a 3D-printed one-way valve that uses an airsoft BB as a check ball.

Squeeze bulb duster model: https://www.printables.com/model/9991...
PolyDryer Ball Bearing Axle: https://www.printables.com/model/9992...

Tools and other stuff in this video:
*This site contains affiliate links for which I may be compensated
6904-2RS Ball Bearings 20x37x9mm (Amazon): https://amzn.to/4cQTm7G
Siraya Tech 85A TPU Filament (Amazon): https://amzn.to/3MA2ItO
Polymaker PolyDryer Filament Dryer (Amazon): https://amzn.to/47iuOTW
Polymaker PolyDryer Extra Dry Box (Amazon): https://amzn.to/4dU6B8P
Airsoft BBs 6mm (Amazon): https://amzn.to/3Xvn2CR
Bambu Lab X1-Carbon: https://bit.ly/3XzuET9
Bambu Lab X1-Carbon Combo: https://bit.ly/3JzYQaX
Bambu Lab Filaments: https://bit.ly/3pusOqd

Raw Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...

00:00 Intro
02:26 Designing a squeeze bulb
07:34 Printing flexible filament in the Prusa XL
10:50 Modifying the PolyDryer box with a bearing axle
13:59 Printing the first prototype
14:59 Testing the first prototype
17:38 Designing a one-way check ball valve
22:29 Adding a pause in the slicer
24:21 Inserting the ball into the printing part
25:48 Testing the check valve
27:03 Declared success--almost as good as real success