(image :file
"0-arduino-to-deck/screw-cross-section.png"))
(p [check])
- (itemize
+ (enumerate
(item
[what would happen if the drill bit were larger than the
screw thread?])
make sure that the teeth end up gripping the flat part of
the drill bit.])
(p [check])
- (itemize
+ (enumerate
(item
[where should the teeth clamp down on the drill bit?])
(item
place the arduino hole mid-way between the two
deck holes.])
(p [check])
- (itemize
+ (enumerate
(item
[should the arduino be upside-down?])
(item
(item [once the drill is back out of the hole, let go of the
trigger]))
(p [check])
- (itemize
+ (enumerate
(item
[should the drill be at full speed while the drill bit is
going down into the wood and coming back up?])
(item [once the drill is back out of the hole, let go of the
trigger]))
(p [check])
- (itemize
+ (enumerate
(item
[should the drill be at full speed while the drill bit is
going down into the wood and coming back up?])
(figure :legend "arduino to deck / #6-32 screw"
(image :file "0-arduino-to-deck/6-32-screw.png"))
(p [check])
- (itemize
+ (enumerate
(item
[in the motor assembly, there are #4-40x1.25\" screws.
are those fatter, thinner, or the same thickness as the
(p [the head is the flat part where some tool, like the alan
wrench, can exert force to spin the screw.])
(p [check])
- (itemize
+ (enumerate
(item [how many times will the thread wrap around one inch of
the screw body?])
(item [what about 2 inches?
(p [the arduino should still be flat against the deck still, just
as it was before tightening the screw.])
(p [check])
- (itemize
+ (enumerate
(item [why do we insert the first screw partially before
holding up the arduino?])
(item [which side of the deck is the top side?])))
blue line is up against the arduino.])
(item [press firmly in each of the corners.]))
(p [check])
- (itemize
+ (enumerate
(item [should the black chip be on the right or the left?])
(item [how many glue dots should be on the breadboard?])))
(section
make sure the heat shrink is either clear or matches
the color of the lead.]))
(p [check])
- (itemize
+ (enumerate
(item [should you pick up a battery by its leads?])
(item [should you strip the leads a large amount at a time?])
(item [what's the name of wires made of a bunch of tiny
(p [the solid core wire is the stiff short wire.
it is much easier to poke into the breadboard.])
(p [check])
- (itemize
+ (enumerate
(item [why are we using a solid core wire?])))
(subsubsection
:title [solder]
there will be smoke.])
(item [move the solder away, then move the iron away.]))
(p [check])
- (itemize
+ (enumerate
(item [should the wires melt the solder?])
(item [why should we clean off the tip of the soldering iron?])
(item [why do we put more solder back on the tip of the iron?]))))
(p [check])
(enumerate
(item [why place the glue dots on the side of the battery pack
- without the on/off switch?])))))
+ without the on/off switch?])))
+ (subsubsection
+ :title [arduino battery pack attachment]
+ (p [attach the arduino battery pack to the robot deck.])
+ (figure
+ :legend "batteries / placement / arduino pack"
+ (video
+ :file "2-batteries/1-placement/1-arduino-battery-pack.ogv"))
+ (p [next, we will attach the arduino battery pack to the deck.
+ again, the pack could be placed anywhere, but we will
+ place it in the lower right side of the robot.])
+ (enumerate
+ (item [make sure you are placing dots on the side of the battery
+ pack without the on/off switch, just as before.])
+ (item [peel off a glue dot for each end of the pack.])
+ (item [when placing the battery pack, make sure the screw hole
+ aligns with a hole on the deck.]))
+ (p [check])
+ (enumerate
+ (item [why align the screw with a hole on the deck?])))))
(section
:title [motors]
(subsection
- :title [leads])
- (subsection
- :title [mount])
+ :title [leads]
+ (p [attach leads to the motors to supply the motor with power.])
+ (figure
+ :legend "motors / leads"
+ (video
+ :file "3-motor-assemblies/0-leads.ogv"))
+ (enumerate
+ (item [strip both the green and yellow wire on both ends.
+ strip one side only 1/8 inch.
+ strip the other side about 1/4 inch.])
+ (item [use the end of the wire stripper to bend a hook in the wire.
+ make this hook on the side of the wire with a smaller
+ exposed section.])
+ (item [do not bend the wire so that the exposed wire runs alongside
+ the sheath.])
+ (item [put the hooks through the tabs on the motor.
+ make sure to place the green and yellow wire on the
+ correct side of the motor.
+ match the side of the motor that already has wires
+ attached.
+ wrap the rest of the wire around the motor in order to
+ keep the wire from falling off.])
+ (item [once the wire is in place, wrap solder around the motor tab
+ and wire.
+ heat up the solder, motor tab and wire with the
+ soldering iron.])
+ (item [test the solder joint with the 9v battery.
+ touch the battery leads to the motor leads.
+ make sure the 9v battery is on.
+ if the motor moves, the solder joint is good!])
+ (item [get section of electrical tape, roughly 100mm
+ (about 4 inches).
+ slide the middle of the tape under the wires.
+ this tape will keep the solder joints away from the
+ metal band around the motor.])
+ (item [the zip tie will hold the wires to the motor.
+ wrap the zip tie on the round part of the motor where
+ it meets the square portion of the motor.
+ this will provide mechanical support for the solder
+ joints.
+ once the zip tie is wrapped, use wire strippers to cut
+ off the excess zip tie.])
+ (item [cover the solder joint with hot glue.
+ this will further keep the solder joints from corroding
+ in the air's moisture.
+ it will also keep the joint safe from anything poking
+ in.]))
+ (p [check])
+ (enumerate
+ (item [should the electrical tape go between the wires and the
+ metal band?])
+ (item [are the motor tabs strong?])
+ (item [what are we doing to reinforce the motor tabs mechanically?])
+ (item [does hot glue make an electrical connection?])))
(subsection
:title [deck attachment]))
(section
projects / challenge-bot / blobdiff