I have a 4" pipe to vent the laser exhaust through the wall. But I was getting tired of connecting and disconnecting the hose to protect the laser from the air outside when I was not using it.
Here is a solution. It is a combination of 3D Printing and Glowforge laser.
I needed it to be able to connect to 4" pipe extending from the wall, connect the flexible hose from laser and to be able to close/open the air without disconnecting anything.
Here is the solution I designed:
The wood pieces are laser cut from medium draft wood. The plastic pieces are printed.
The assembly design:
Flap inserted to open the air:
Flap inserted to close the air:
3 screws to put it together:
And connect to the wall and hose:
Now you can swap the flaps to close or open the air flow.
Fun project to make life easier.