this means the hole needs to be big enough for the
screw body to fit through.
we want the screw to stay put once it's in place.
- the threads of the screw will grip the edges of the
- hole it's going through.])
- (p [here's a diagram of a screw]
- (figure :legend "screw" (image :file "arduino-to-deck/screw.png"))))
+ we also want the drill bit to be smaller than the
+ diameter of the thread.
+ the screw was chosen so that the hole on the arduino
+ was bigger than the body and smaller than the thread.
+ we will choose the biggest drill bit that fits through
+ the hole on the arduino.])
+ (p [here's a cross section of a screw in the deck]
+ (figure :legend "screw cross section"
+ (image :file
+ "arduino-to-deck/screw-cross-section.png"))))
(subsubsection
- :title [inserting drill bit])
+ :title [inserting drill bit]
+ (p (figure :legend "arduino to deck / insert bit"
+ (image :file "arduino-to-deck/1-insert-bit.png"))
+ [insert the drill bit into the teeth of the drill.
+ insert it far enough that the teeth will clamp on the
+ smooth part of the bit when they are tightened.])
+ (p (figure
+ :legend "arduino to deck / twist tighten drill teeth"
+ (image :file "arduino-to-deck/2-twist-tighten-drill-teeth.png"))
+ [while holding the drill bit, twist end of the drill to tighten
+ the teeth.
+ make sure that the teeth end up gripping the flat part of
+ the drill bit.]))
(subsubsection
- :title [holding drill])
+ :title [holding drill]
+ (p [hold the drill with one hand on the handle and trigger.
+ put the other hand on the orange nozzle, before the
+ black spinning part.]))
(subsubsection
:title [arduino placement]
(p [the arduino should be placed as shown in this picture.]
(p [the "#6" part of "#6-32x3/8\"" is how big around the bolt is.
it is related to wire gauge.
bigger numbers mean larger screw.
- smaller numbers means smaller screws.])
+ smaller numbers means smaller screws.]
+ (figure :legend "arduino to deck / #6-32 screw"
+ (image :file
+ "arduino-to-deck/6-32-screw.png")))
(p [check
,(itemize
(item