Differences

This shows you the differences between two versions of the page.

--- tutorial_ii [2016/02/29 00:15] – jadintredup
+++ tutorial_ii [2016/02/29 01:09] (current) – jadintredup
@@ Line 2: / Line 2: @@
 **Keywords:** Lego, Pneumatic, Sequencing, Circuit, Cylinder
+----
 ==== Motivation and Audience ====
+The goal of this tutorial is to teach students how to build a basic pneumatic switch. Pneumatic sequencing is built around using pistons to move switches and direct air flow. Using this simple switch, students will be able to change the direction of one current using one pneumatic cylinder.
+----
-==== Parts List and Sources ====
+==== Parts List ====
 ^ Part Description                       ^ Part #    ^ Qty|
 | Technic Axle Pin                       | 3749      | 6|
@@ Line 20: / Line 20: @@
 | Pneumatic Hose - Various Length        | 5102      | 1|
+----
 ==== Construction ====
 **Step 1:**\\
@@ Line 28: / Line 28: @@
 **Step 2:**\\
-Attach two of the 3x3x0.5 beams to one side of the bricks and use and axle pin to attach a pneumatic cylinder with the ports facing away from the bricks. Mirror the beam and axle pin structure on the opposite side as shown for stability.
+Attach two of the 3x3x0.5 beams to one side of the bricks and use and axle pin to attach a pneumatic cylinder with the ports facing away from the bricks. Mirror the beam and axle pin structure on the opposite side as shown for stability.\\
 {{:screen_shot_2016-02-23_at_8.45.37_pm.png?nolink&200|}}
 {{:screen_shot_2016-02-23_at_8.45.43_pm.png?nolink&200|}}
 **Step 3:**\\
-Connect a pneumatic valve to the remaining pins with friction. With the valve switched to the left side, attach an axle joiner, a notched axle 2, and a 1x2 cross block to extend the lever to the heigh of the cylinder.
+Connect a pneumatic valve to the remaining pins with friction. With the valve switched to the left side, attach an axle joiner, a notched axle 2, and a 1x2 cross block to extend the lever to the heigh of the cylinder.\\
 {{:screen_shot_2016-02-24_at_11.54.22_pm.png?nolink&200|}}
 **Step 4:**\\
-Using a long pin, connect the cross block to the pneumatic cylinder so that the switch may be controlled with the expansion and contraction of the cylinder.
+Using a long pin, connect the cross block to the pneumatic cylinder so that the switch may be controlled with the expansion and contraction of the cylinder.\\
 {{:screen_shot_2016-02-24_at_11.54.35_pm.png?nolink&200|}}
+----
 ==== Final Words ====
+These pneumatic switches are analogous to electronic switches. Air would be flowing from some source into the center port of the switch. Using some source of air to control the motions of the piston, students can manipulate the switch to direct the flow of air from the center port to either the left or right ports which is essential to building complex pneumatic systems.