MEAM.Design - MEAM 101 - LOCOMOTE
Objective
After too many late nights working on DISSECT, you awaken in a parallel universe. First thought: I'm still really tired. Second thought: This is cool! At first everything seems normal. But when you leave your apartment you notice that there aren't any cars. Or bikes. Or wheeled vehicles of any kind. In fact, while nearly every piece of modern technology exists in this parallel universe, the wheel has yet to be invented ("But wait! That's impossible!" you say. To which I respond: "You bought the whole 'parallel universe' thing, but not the wheel part? Come along now..."). You get to MEAM101, and you've been assigned the following team project:
You resign yourself to the fact that DC motors exist in a universe without wheels, and begin to investigate what you've been given...
Given
| Pololu 15.5D 115:1 metal gearmotor |
| Pololu 15.5D bracket with M2 screws |
| (PHV-5R4V474-R) 0.470 Farad supercapacitor |
| (M2011SS1W01/UC) panel-mount SPST toggle switch |
| (PJ-005A) panel-mount barrel connector |
| 24AWG stranded wire (red, black, violet) |
| 1/8" polyolefin 3:1 heatshrink |
| 1/8" and 1/4" MDF and acrylic as needed (order here) |
| ANSI & Metric fasteners (visit the GM lab) |
| Random hardware (We have a few boxes of hardware in Towne 205, and there is a scrap area in the B11 lab from which you can pull random parts.) |
| Printed parts (Send the STL file in an email to medesign@seas.upenn.edu with the title 101-LOCOMOTE-PRINT-X, where X is your team letter. Specify color and desired layer thickness.) |
| Machined parts (If needed, you will be paired up with a student from the MEAM201 class who can help you machine a small number of metal parts.) |
| Ordered components (You can order from www.mcmaster.com by sending an email to medesign@seas.upenn.edu entitled 101-LOCOMOTE-ORDER-X, where X is your team number. Include the mcmaster part number, the cost per item, the quantity needed, and a justification for the purchase.) |
Constraints, Requirements, and Incentives
- No rolling contact between the locomotor and the ground will be permitted at any time
- The lomotor cannot alter the ground upon which it locomotes
- Awards will be given to the locomotor that travels the farthest on a full charge, the locomotor with the fastest time through a 50-centimeter speed trap, and the locomotor with the most creative locomotive system
Schedule
- Team Formation (11/21) - Now that you know what you'll be doing, the first step will be to select teams of three from within your lab section. Once you have found a group, place your names on the team page. Please note your team letter!
- Concept Review (11/26) - Tuesday is Thursday! Meet with your TA and be prepared to show/discuss locomotive strategies, construction techniques, material selection, your project schedule, and any other relevant topics.
- Competition (12/10) - It's time to locomote!
Motor Circuit & Charging Instructions
Awesome Slides With Circuit Component Info
Good luck!