X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=guide%2Fchallenge-bot.scm;h=53c0cc91356b8cabe6ba38ab786f7dae3080a92b;hb=15ba87a45b4458ddfe1bfa8c489228517530716a;hp=bff1726e45e581f89322f5f9ba5f9e8c5fae3425;hpb=0912845718973ae094826a1686feabbe48b205c3;p=challenge-bot diff --git a/guide/challenge-bot.scm b/guide/challenge-bot.scm index bff1726..53c0cc9 100644 --- a/guide/challenge-bot.scm +++ b/guide/challenge-bot.scm @@ -326,34 +326,133 @@ :title [battery packs] (subsection :title [leads] - (p ["leads" are the wires coming out of the battery pack. - prepare the leads of the batteries by stripping them and placing - heat shrink on them. - your battery packs are not attached to your deck yet, - but that will be the next step.]) - (figure :legend "batteries / prepare leads / video" - (video - :file "2-batteries/0-prepare-leads/0-prepare-leads.ogv")) - (enumerate - (item (bold [do not pick up batteries by their leads!])) - (item [strip the leads a tiny bit at a time. - keep stripping until a total of an inch is stripped. - the leads are made of tons of tiny wires that will - tear apart if too much insulation is stripped at - once. - wire made of a bunch of tiny wires - is "stranded wire".]) - (item [strip both leads of both batteries.]) - (item [then place heat shrink on every lead. - make sure the heat shrink is either clear or matches - the color of the lead.])) - (p [check]) - (itemize - (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 wires?]))) + (subsubsection + :title [strip] + (p ["leads" are the wires coming out of the battery pack. + prepare the leads of the batteries by stripping them and + placing heat shrink on them. + your battery packs are not attached to your deck yet, + but that will be the next step.]) + (figure :legend "batteries / prepare leads / stripping" + (video + :file "2-batteries/0-prepare-leads/0-strip.ogv")) + (enumerate + (item (bold [do not pick up batteries by their leads!])) + (item [strip the leads a tiny bit at a time. + keep stripping until a total of an inch is stripped. + the leads are made of tons of tiny wires that will + tear apart if too much insulation is stripped at + once. + wire made of a bunch of tiny wires + is "stranded wire".]) + (item [strip both leads of both batteries.]) + (item [then place heat shrink on every lead. + make sure the heat shrink is either clear or matches + the color of the lead.])) + (p [check]) + (itemize + (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 + wires?]))) + (subsubsection + :title [wrap] + (p [do the next 2 sections with just one lead at a time. + wrap, then solder one battery lead before moving on to the + next. + wrap the stranded wire around a solid core wire, as shown + in this video.]) + (figure :legend "batteries / prepare leads / wrap" + (video + :file "2-batteries/0-prepare-leads/1-wrap.ogv")) + (p [the solid core wire is the stiff short wire. + it is much easier to poke into the breadboard.]) + (p [check]) + (itemize + (item [why are we using a solid core wire?]))) + (subsubsection + :title [solder] + (p [do this next section and the previous with just one lead at a + time. + solder the stranded wire and solid core wire, as shown + in this video.]) + (figure :legend "batteries / prepare leads / solder" + (video + :file "2-batteries/0-prepare-leads/2-solder.ogv")) + (p [soldering is the process of joining 2 metal things with + solder.]) + (enumerate + (item [use the helping hands to grab the wires and hold them in + place.]) + (item [clean off the tip of the soldering iron if it has been + sitting still for a while. + this cleans off corroded metal.]) + (item [apply some solder directly to the tip of the soldering + iron. + this creates a pool of solder on the tip. + we will use this to transfer heat to the wires.]) + (item [put the soldering iron up to the wires. + we want the wires to be hot enough to melt the + solder. + at the same time, poke the solder into the wire. + the solder will start melting and quickly spread to + hot parts of the wire. + there will be smoke.]) + (item [move the solder away, then move the iron away.])) + (p [check]) + (itemize + (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?])))) (subsection - :title [deck attachment])) + :title [deck attachment] + (subsubsection + :title [motor battery pack attachment] + (p [attach the motor battery pack to the robot deck.]) + (figure + :legend "batteries / placement / motor pack" + (video + :file "2-batteries/1-placement/0-motor-battery-pack.ogv")) + (p [we will use glue dots to attach the motor battery pack to the + deck. + the pack could be placed anywhere, but we will place it + in the lower left side of the robot. + this battery pack has 4 AA batteries in it. + each battery has 1.5 volts difference between the positive + and negative side. + the batteries are connected in series. + the total voltage difference for the whole battery pack is + the sum of the individual voltages, which is 6 volts.]) + (enumerate + (item [make sure you are placing dots on the side of the battery + pack without the on/off switch.]) + (item [peel off a glue dot for each of the corners of the + battery pack.]) + (item [when placing the battery pack, make sure the screw hole + aligns with a hole on the deck.])) + (p [check]) + (enumerate + (item [why place the glue dots on the side of the battery pack + 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