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WEEK 3

Weekly goals:
- finalize shopping list
- test all GPS units and cameras in one test
- design initial layout for package


-  Possibly switching out lids of the petri dish once on the ground in a clean room; two control dishes, one similar to what goes up, the other in the same environment as when the switching occurs

Monday 6/4/18
Members of the team had an important meeting with Professor Griffo and Professor Benjamin discussing the possible mechanisms for the petri dishes. At first we were deciding between the standard petri dish or the screw top lid petri dish. The petri dish with the screw lid would secure the materials captured without contamination. However, Joshua created his idea for the mechanism for a standard petri dish on Fusion 360 program.



The item, 150 x 17mm Plastic Petri Dish - Polypropylene - Pack of 6, can be bought on Amazon: 
https://www.amazon.com/17mm-Plastic-Petri-Dish-Polypropylene/dp/B077MJK5GK/ref=sr_1_158?ie=UTF8&qid=1527777225&sr=8-158&keywords=petri+dishes#feature-bullets-btf

 The team is considering using a square or triangle petri dish. We are still researching and brainstorming ideas.

List of Motors:
Motor Name Price ($) Weight/Mass Torgue Rotation Speed Degrees of Rotation Operating Voltage Link If more power is needed, look up motor drivers
Vex Servo Kit 100 https://www.robotshop.com/en/vex-servo-kit.html
9g Micro Servo Motor (4.8V) $3.56 9g 0.12 sec (60 Deg) 4.8V https://www.robotshop.com/en/9g-micro-servo-motor-4-8v.html
Detrum 9g Metal Gear Micro Servo $7.49 0.52 oz (15g) 22.2 oz/in. (15kg/cm) 0.12 sec (60 Deg) 4.8V http://graysonhobby.com/detrum-9g-metal-gear-mico-servo.html?utm_source=google_shopping
FMS 9g Digital Metal Gear Servo $9.99 9g 33.6-34.76 oz/in. https://www.motionrc.com/products/fms-9g-digital-metal-gear-servo?utm_medium=cpc&utm_source=googlepla&variant=19058408646&gclid=EAIaIQobChMI6Pig_Zy62wIVg56fCh0wkgTtEAkYDiABEgL56PD_BwE
Adafruit Industries Llc 1143 $9.95 0.03 lb (13.61g) 30.5 oz/in. (215.38 mN/m) 180 5V https://www.digikey.com/product-detail/en/adafruit-industries-llc/1143/1528-1084-ND/5154659&?gclid=EAIaIQobChMI6Pig_Zy62wIVg56fCh0wkgTtEAkYEyABEgLkuPD_BwE

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