Parker Wild
Plan on finishing the motorcycle on May 5th!
Last time in the lab:
– Electrical team: wired the back light; assembled points; sorted distributer parts and cleaned them; organized wiring harness
– Top end: reassembled top end
– Fasteners, Gaskets, and Carburetor: paired each part with its corresponding fasteners to ensure an easy assembly process
– Wheels: front wheel reassembled, spokes threaded, trued; tire and inner tube mounted (without pinching the tube)
– Forks: assembled forks; put Gaiters onto forks
– Bottom end: placed plug in the bottom of the engine case; waiting to assemble the oil system; gasket compound applied to the case
– Transmission, Clutch: made sure transmission functioned properly, shifted through all the gears, and then sealed the transmission side of the case; the timing chain is 64 links long, when it should be 62 for this model, so they will have to remove two links
– Frame: painted fender with Glen (paint should be applied in light coats so it dries evenly); searched for petcock
– Prof. Littman: Norton motorcycle show; Bill Becker’s ’65 Norton
Presentations:
– Power point presentation posted as a file on the web page for each corresponding group
– In addition, take some of the key images and text and create something that will be visible to visitors of the website (need to scale down those images for web-sized implant)
– Take a screen shot of the photo and then input it to the website
– Web page should be a description of some part of your activity
– What did you learn about? Theory? Practice? Description? Technical content should be included in the presentation, too.
– Example: for the wheels group, might want to calculate breaking tension (stress) for spokes, explaining why the number of spokes and their thickness matters; the transmission team might want to delve into the concept of mechanical advantage for the gears
– What did you find most interesting for your piece?
– Presentation should be around 10 panels, or three on each section of the bike that’s being examined
– There will be a 15 minute description of these power points to the class on the Thursday of reading period
– Personal touch is good!
– What are the most important things to be communicated?
Demonstration:
– Oscilloscope – voltage reader
– Magnet that spins between two coils of wire
– When only one coil of wire is connected to the oscilloscope: as the magnet moves by, it induces a current in the coil
– Faraday’s Law: as the field lines of a magnet cross a wire, they produce a voltage in the wire (basis of electromagnetism)
– When a horseshoe of iron is passed through the coil, the magnitude of the voltage is increased (because of the permeability of iron, which almost “guides” magnetic field lines)
– When two coils of wire are connected to the oscilloscope: the magnitude of the current doubles or cancels depending on how you hook up the coils
– Coils are the equivalent of the stator, and the magnet is the equivalent of the rotor
– A stator assembly can be used to measure engine RPMs (measure peak-to-peak)