+#+OPTIONS: toc:nil
* challenge-bot questions
** mechanical questions
*** arduino to deck
to attach the motor to the deck, first we attached motor mounts.
the motor mounts are the square things with 6 holes of
various sizes.
- 1. the bolts used to attach the arduino are 6-32 bolts.
+ 1. the bolts used to attach the arduino are =6-32= bolts.
the bolts used to attach the motor to the motor mount are
- 4-40 bolts.
- Are the 4-40 bolts fatter or thinner than the 6-32?
+ =4-40= bolts.
+ Are the =4-40= bolts fatter or thinner than the =6-32=?
2. if you see a bolt described as =4-40x1.25=" how long is it?
3. on a =4-40= bolt, how many times does the thread wrap around
one inch of the body?
(roughly)?
2. should you pick up a battery by the wires coming out of it?
3. what are the wires coming out of the battery called?
+ 4. why do we put the glue dots on the side of the battery pack
+ without the on/off switch?
*** caster
the caster is the solid metal sphere.
it is held in a 3d printed plastic housing called the caster standoff.
1. where is the caster?
2. why is the caster in the middle of the back, instead of on the
left or right?
- 3. why do we put the glue dots on the side of the battery pack
- without the on/off switch?
- 4. what would happen if there were no caster on the back
+ 3. what would happen if there were no caster on the back
of the robot?
*** tools
1. do you have a ratcheting socket wrench?
what is a ratcheting socket wrench?
2. what is the socket wrench used on?
3. what are the pliers?
- 4. what do you use to take the colored part off the end of a wire?
+ 4. what do you use to remove the colored part from a wire?
*** misc
1. what is the robot tread made out of?
2. why is it difficult to push the sonar into the sonar holder?
projects / challenge-bot / blobdiff