Ventilation for 3D Printer and box with Diode Laser

This is presentation of the concept and elements I used to make ventilation connections to a cabinet with a 3D printer and to a box with a laser cutter using the objects published here and a plastic flexible PVC hose with a diameter of 100mm.

From the fan, the pipe splits into two directions. One direction goes towards the printer cabinet. The other path goes to the laser box. At each end, there is a movable flap to close the air outlet

The plastic flexible PVC hose is glued to Object 4. So is part 3 on part 2 glued together.
The other elements are temporarily held together by a screw that is thread-screwed into a hole in Object 4 and Object 5.