Tuesday, April 10, 2012
This year, the EV Challenge officials have required that each cell in a battery pack must be covered. A single cover over all batteries/cells will not suffice any longer....thus the need for cell terminal covers. A couple of students took it upon themselves to surprise me one day with their creation of a DIY vacuum forming machine. Crude but effective, they are in the process of forming the needed 48 covers for our lithium cells. We are using .62 thick thermoplastic from Professional Plastics, a vacuum form box made from 2x4's and a shop vac. Works like a champ!
Up to eight team members showed up each day bright and early to help change out batteries, create new terminals, wire the BMS and remove a strut among other activities. We had an epiphany of sorts when we looked at the calendar before srping break and relized that we only had 18 class periods before competition! The students made a decision to dedicate a part of their vacation time to help work on the car and truck to insure that we are ready for competition. Dedication and preparation breeds success.