From: daniel watson <ozzloy@gmail.com>
Date: Mon, 27 Jun 2016 07:13:22 +0000 (-0700)
Subject: add caster
X-Git-Url: http://challenge-bot.com/repos/?p=challenge-bot;a=commitdiff_plain;h=23599b44d76e37dd59cf0a7891a62d19788aa266

add caster
---

diff --git a/guide/4-caster-to-deck.ogv b/guide/4-caster-to-deck.ogv
new file mode 100644
index 0000000..275e3c1
Binary files /dev/null and b/guide/4-caster-to-deck.ogv differ
diff --git a/guide/challenge-bot.scm b/guide/challenge-bot.scm
index da614d5..9ea816f 100644
--- a/guide/challenge-bot.scm
+++ b/guide/challenge-bot.scm
@@ -565,16 +565,23 @@
              as you can while tightening it down.
              this will give more clearance to the wheels of the robot
              so they do not rub the deck.])))
+  (section
+   :title [caster]
+   (p [the caster will go at the back of the robot and provide a third
+           point of contact for the robot, making it easier for it to
+           balance.])
+   (figure
+    :legend "caster"
+    (video :file "4-caster-to-deck.ogv"))
+   (p [check])
+   (enumerate
+    (item [what would happen if the robot did not have a caster?])))
   (section
    :title [wheels]
    (subsection
     :title [tread])
    (subsection
     :title [motor]))
-  (section
-   :title [caster]
-   (subsection
-    :title [deck placement]))
   (section
    :title [sonars]
    (subsection