Last time:
Electric: practiced soldering, disassembled head light system, went online to practice circuit building, used program by Falstad (circuit simulator applet)
Wheels: started disassembling front wheel, took out spindle and bearings, took apart the break assembly, cleaned grease off parts, used locking adjustable wrench to get various bolts out, got the tire and inner tube off!
Frame: prepared pieces for sandblaster—it blasts sand, works similarly to carburetor, uses compressed air with tube going into fine grain sand, as air goes over tube comes up tube, and the sand is sprayed at high velocity, cleans surface of whatever it hits (paint, for example). Caution! It can damage anything with a threading, so tape those over.
Fasteners: measured the coordinates of engine covers to be able to make gasket
Clutch: used three jaw chuck with socket wrench (with extension)
Bottom end: worked with Clutch crew, when they got to bottom end saw quadrant plate, learned how it switches the gears, took apart engine!
Fork: used special spanner wrench to fit perfectly around prong of fork, stuck needles into hole so it would come undone
Top end: cleaned parts
Quartermaster: identified missing pieces to order
Readings/Discussion:
ZAMM
Chapter 5:
Motorcycle References:
- Changing oil, lubricating roller chain (so that it moves more smoothly)
- “Shim those out”—shim is a piece of material, in this case it would keep the handlebars from moving too much, piece of metal you wrap around to make diameter longer so that when you clamp it’ll hold more firmly
- Aluminum—doesn’t oxidize in wet weather, always has a thin layer of oxide that prevents further oxidation
- Valve clatter: noise of the valve opening and closing, if valves are sloppy/have a lot of play, it gets very noisy
Storyline:
- Narrator has a dream about Phaedrus calling Chris, and it’s after Chris’ fit so he’s afraid that Chris is turning into Phaedrus because of his mental illness, and the narrator was Phaedrus before his shock therapy
- Kindness—doesn’t want Chris to keep seeing a counselor, acknowledges idea that everyone now is supposed to be kind (which is just a fake attitude) but what can people know about kindness if they’re not kin?
Chapter 6:
Motorcycle References:
- “Thread’s stripped in the chain adjustment”—tried to adjust it, forgot to loosen up nuts beforehand, that stripped the chain adjustment
- Set of groupings:
- Introduces idea of knife—different ways of breaking down an object into pieces. So he lays out all the parts of a motorcycle, and discusses how you can group them.
- Classical vs Romantic understanding
- Classic—creative, many ways to divide up understanding of world/motorcycle, looking at underlying form itself
- Romantic—sees primarily in terms of immediate appearance
- Different ways of seeing things as beautiful—aesthetically beautiful, or functionally beautiful
Combustion
- NOx, different oxides of Nitrogen that show up, making point that there is a problem with emissions because in addition to oxygen in chamber there is also nitrogen, explosion then gives byproducts such as carbon monoxide, NO, unburned hydrocarbons
- By looking at oxygen in exhaust, you can see how effective your engine is, goal is to be at gray line on page 6 of combustions sheet
- Need the proper air-fuel ratio!
Demonstration
- Power is force x velocity
- Horse power is how much power a horse has available
- 1 horse power is 746 watts
Homework
Read chapter 3 of SCAS