ENGR-162/12 – Benjamin W. Kidd

How to Build a Storm-Door Pneumatic Cylinder

By Benjamin Kidd

Credit tohttp://wolfstone.halloweenhost.com/Welcome/Welcome.htmlfor the idea

ENGR-162/12 – Benjamin W. Kidd

Tool List

Phillips Screwdriver Epoxy Dispenser Round File Hack Saw Clamp Drill Bits Drill

ENGR-162/12 – Benjamin W. Kidd

Materials

Pneumatic Door Closer - Available at Lowe’s for $8

(Note that these type of closers typically require about30 to 35 PSI to extend the piston fully. Be sure to obtainepoxy and pneumatic components rated above thispressure.)

ENGR-162/12 – Benjamin W. Kidd

Step 1: Remove End-screw

ENGR-162/12 – Benjamin W. Kidd

Step 2: Extend Piston

Use “propping-clip” to hold piston extended by 2” to 3”.

Keeps piston head out of harms way during drilling, gluing, etc.

ENGR-162/12 – Benjamin W. Kidd

Step 3: Secure Cylinder

ENGR-162/12 – Benjamin W. Kidd

Step 4: Cut Off 2nd Hinge Point

ENGR-162/12 – Benjamin W. Kidd

Step 5: Drill Out Air Inlet

ENGR-162/12 – Benjamin W. Kidd

Step 6: Prepare Air Connector

¼” NPT Male-to-hose-barbModified Connector

ENGR-162/12 – Benjamin W. Kidd

Step 7: Prepare Air Connector

A) Secure Connector

B) Cut 3 Barb sections off the connector.

ENGR-162/12 – Benjamin W. Kidd

Step 7: Continued

(C) File any burs or sharp edges off.

Finished connector

ENGR-162/12 – Benjamin W. Kidd

Step 8: Epoxy in NPT connector

Evenly coat the connector barbs in epoxy

Push connector into air inlet and turn to spread epoxy evenly

Hold in place for 5 minutes