describe how to fasten the first arduino screw

diff --git a/curriculum/challenge-bot.scm b/curriculum/challenge-bot.scm
index adafaf6bc67715923fbca35b5d73f4ff13eae2c1..76dc7781a7133f338a04b10881f3e582af333956 100644 (file)
--- a/curriculum/challenge-bot.scm
+++ b/curriculum/challenge-bot.scm
@@ -10,7 +10,47 @@
    (subsection
     :title [arduino placement])
    (subsection
-    :title [first hole and screw])
+    :title [first hole and screw]
+    (subsubsection
+     :title [choosing drill bit])
+    (subsubsection
+     :title [inserting drill bit])
+    (subsubsection
+     :title [holding drill])
+    (subsubsection
+     :title [drilling])
+    (subsubsection
+     :title [6-32 by 3/8\" screw]
+     (p [the "6" part is how big around it is.])
+     (p [the "32" part is how close the threads are to each other.])
+     (p [the "head" is the flat part where some tool, like the alan
+             wrench, can exert force to spin the screw.]))
+    (subsubsection
+     :title [fasten the arduino board to the deck]
+     (p [push the 6-32 screw into the deck from the underside and at the
+              same time, spin the 6-32 screw clockwise while looking
+              down on its head.  twist until the bottom of the screw is
+              about to stick out on the top side of the deck.])
+     (p [hold the arduino board flat to the deck and line up the arduino
+              hole so the screw can come up through it.  continue
+              tightening the screw into the deck, spinning the same
+              direction as before.  tighten until the screw head touches
+              the deck.  do not continue tightening])
+     (p [the arduino should still be flat against the deck still, just
+             as it was before tightening the screw.]))
+    (subsubsection
+     :title [assessment]
+     (p [does the arduino stay with the deck when the deck moves?
+              can the arduino board still rotate a few degrees?
+              warning, if you rotate the arduino board too much, you
+              will unscrew it from the deck and you'll have to screw it
+              back in.  rotating a few degrees should be ok.]))
+    (subsubsection
+     :title [arduino board move relative to deck]
+     (p [without any screws, the arduino board can move independently of
+                 the deck.])
+     (p [with the first screw, the arduino can rotate around one point
+              on the deck.])))
    (subsection
     :title [second hole and screw])
    (subsection

diff --git a/curriculum/notes.org b/curriculum/notes.org
index e7d35a51a5501e843ea3493bb6577a0dad33119b..bc2878f79755db31e166bf2ff441cb3280662f0b 100644 (file)
--- a/curriculum/notes.org
+++ b/curriculum/notes.org
@@ -1 +1,4 @@
 * TODO change code for left motor to only use digitalWrite
+* TODO take pics of how to hold drill
+* TODO take pics of 6-32 to show what "6" and "32" mean
+* TODO figure out what exactly "32" measures