LIGHTWEIGHT WRENCH

A class project for UMass MIE313, Design of Mechanical Components. The goal of the project was to design and manufacture a wrench with an extra functionality for an “Extra-Ultralight Biking LLC”, a company that makes ultralight biking gear for long distance bikers. The wrench must be made from 1.5” x 10” x 3/8” aluminum bar stock (AL 6061-T6) and fit specific requirements. The following requirements for the handle include: having a length of at least 6”, having a stable flat surface, allowing the user to have stable grip and easy usage, withstand loads of reasonable usage, and have no sharp edges. The following requirements for the jaws is to have the ability to loosen a 5/16-18 bolt of a 150 in-lb torque load. Overall, the wrench shall weigh no more than 1.25 oz.