Freshman Design Project: Cardboard Arm Introduction Teams are to design, construct and test an arm model built from standard carton/box cardboard available at local home improvement stores. Other materials that may be utilized are duct tape, three (3) six inch nails to be specified by your TA, and standard white wood glue. The final project must consist of 95% cardboard. A section competition will be held. The team with the lightest arm capable of lifting the load off of the ground for at least three (3) seconds will emerge victorious. Prizes will be awarded to the winning team members. Teams must provide their own materials. Winners of each section will compete in a final competition held during finals week. Grading Rubric This project will be graded in three parts: - Project Design and Performance 33% of Grade - Team Report 33% of Grade - Team Evaluations 33% of Grade Project Design and Performance - The arm must consist of two segments (i.e. an upper arm and a forearm) and pivot about the elbow joint. - The upper arm must be able to fit within a four (4) inch diameter tube/circle. - Both arm segments must be at least eighteen (18) inches long - Nails may be used for the pivot, points of attachment, or securing the arm to prevent a torque force from bending the arm to either side while the load is being lifted. - Points of attachment are where the winch hook (muscle) attaches to the arm, and where the load hook attaches to the arm. - Winch hook attachment must be at most six (6) inches from the elbow pivot. - Load attachment must be at most two (2) inches from the end of the forearm.Students should examine the testing apparatus carefully as teams will need to secure the upper arm to it to eliminate a torque (twisting) force which will prohibit lifting of the load. Teams may only use temporary means to secure the arm to the testing apparatus. Points are deducted for: - Failure to overcome the torque force. If the forearm touches either side guard, fifteen (15) percentage points will be deducted. - Each nail used will result in five (5) percentage points being deducted. (three (3) nails maximum) - Attaching the upper arm to the testing apparatus with duct tape will result in a deduction of ten (10) percentage points. Team Report Filename: Team??_BMEISE1110_0?_F14_Report The team report must contain the following: - A table listing materials used and their costs as well as the weight of the arm. The weight will be verified on the day of the competition. - A SolidWorks drawing of the arm - A Picture of the completed arm - A log of meetings showing o Dates o Which team members were in attendance o What transpired o Relevant pictures of the work in progress Team Evaluations Immediately after the competition all class members will electronically submit (via E-mail) a rating of their team mates and themselves from 0 to 10. A rating of 10 means the team member showed maximum participation in the project. A rating of zero means the team member showed no participation in the project. The average of the four scores will be the grade for this section. Any team member that does not submit an evaluation will receive a maximum score of 66% for the entire project. Be sure that all team members submit evaluations for all team mates and themselves. Failure to do so will hurt all team members. Each team member must submit an e-mail with the following subject line and filename. E-mail Subject Line: John Doe BME/ISE 1110 (0?) F14 Team ? Evaluation Filename: JDoe_BMEISE1110_0? _F14_T?_Eval In the body of the e-mail type the evaluation scores as in this example: John-10 Judy-7 Ali-9