- 2. why did we use a drill bit that was wider than the body of the
- bolt used to hold the arduino?
- 3. why do people use drill bits that are smaller or the same size as
- existing holes in circuit boards, like the holes in the blue
- arduino?
- 4. why did we drill through the arduino, rather than marking holes
- and using the drill to make holes where the marks were?
- 5. how does the drill hold onto the drill bit?
- 6. what would happen if the drill bit teeth were not flat on the
- drill bit?
- 7. name some reasons for the arduinos placement on the deck.
- 1. could it have been placed diagonally? why or why not?
- 2. could it have been placed in any other location? why or why not?
- 3. could it be upside-down? why or why not?
- 8. should we drill at full speed?
- why or why not?
- 9. how can you break the drill bit when drilling?
- 10. 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?
- 11. if you see a bolt described as =4-40x1.25=" how long is it?
- 12. on a =4-40= bolt, how many times does the thread wrap around
+ 2. why did we use a drill bit that was wider than the body of the
+ bolt used to hold the arduino?
+ 3. why do people use drill bits that are smaller or the same size as
+ existing holes in circuit boards, like the holes in the blue
+ arduino?
+ 4. why did we drill through the arduino, rather than marking holes
+ and using the drill to make holes where the marks were?
+ 5. how does the drill hold onto the drill bit?
+ 6. what would happen if the drill bit teeth were not flat on the
+ drill bit?
+ 7. how can you break the drill bit when drilling?
+ 8. should we drill at full speed?
+ why or why not?
+**** 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?
+ 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