Step 4: Make the Plenum
The plenum is the airflow straightener it makes sure that the wind is flowing evenly through the tunnel.
- Cut your cardboard tubes to 12 inch lengths (you will need about 18).
- Experiment with inserting them into the end of your tunnel to see how they fit best.
- Once you have found the best way to put them in, take them out and hot glue them together.
- Insert the plenum into the end of the tunnel that will be attached to the fan. If it is loose, secure it with duct tape or hot glue.
- Cut your cardboard tubes to 12 inch lengths (you will need about 18).
- Experiment with inserting them into the end of your tunnel to see how they fit best.
- Once you have found the best way to put them in, take them out and hot glue them together.
- Insert the plenum into the end of the tunnel that will be attached to the fan. If it is loose, secure it with duct tape or hot glue.
Remove these ads by
Signing UpFlag this comment as:
Not NiceInappropriateSpam
Visit Our Store »
Go Pro Today »
