1. Weekly Advisor Meeting November 13, 2013

2.  Basic LED visual indicator circuit designed ◦ Red (>1.65V) ◦ Yellow (>2.25V, >2.35V) ◦ Green (>2.45V, >2.55V)  Cap overvoltage protection parts chosen  1.8V and 3.3V boost power supply designed ◦ Both operational when cap voltage > 1.2V  All parts ordered, arriving Thurs  Will be built this weekend  Possible 5V supply for next semester November 13, 20132

3.  Steel hand crank fixture made  Gear analysis ◦ Stress factors ◦ Material strength ◦ Intermediate ratios ◦ Fewer gears, better efficiency  Gears are expensive ◦ Current best option: Amazon (~$180) ◦ 3D printing ($5/in^3)  Gears, shafts, pillow block mounted bearings to be ordered ASAP November 13, 20133

4.  Wooden frame built for mounting gears onto  Approx 36”x20”x18”  Not concerned with turnstile shape yet  Cross supports will be added once gears have been chosen November 13, 20134

5.  Test system needed to determine efficiency  Energy in:  Energy out: W= (CV^2)/2  Efficiency is the ratio between them November 13, 20135 Turnstile arms Pulley Hanging mass

6.  Figure out what we need to test system  Assemble circuits (Est. 3+ hours)  Select gears  Purchase gears  Mount gears/shafts onto frame  Measure efficiency  Assignments... November 13, 20136

7.  Individual build summary paper (11/14)  Two weeks exactly until final report (11/27)  Thanksgiving break – no weekend meeting  Final presentations begin (12/3)  Final poster (12/4)  Poster competition (12/5)  Establish website presence  Next Semester – switch to ECE requirements ◦ No more weekly papers November 13, 20137

8.  Time to ship, build, and test before final report  Funds quickly decreasing  Prof. Sup: choosing optimal motor speed  Prof. Sup: design not complex enough  No time to recover if parts don’t fit together November 13, 20138