156B Week 7
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Fidelity model 2 completed
Electronics almost fully set up (code [waiting for build day to test and fix] and purchases [done])
Fidelity model 3 CAD
base and locking mechanism changes
Testing date set up with sponsor
Accomplishments from Previous Week
Redesign for third fidelity model
primarily base and locking mechanism changes
Code for electronics almost completed
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Fidelity model 3
Testing success in person
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
In person testing on May 21, 2020.
Emailed the comments from Instructor meeting (May 8, 2020)
Same comments
Have been working on the base CAD and FEA. We are also going to send it for machining as it is reliable, and 3D printed parts are not cutting it.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
May 7, 2020 (Zoom)
Base needs some redesign for manufacturability
Redesign in process
Possibly change linear guide for clamp
Rotation clamp may need some change
Consider break shoe
Redesign to reduce cost for machining
Ensure that the locking mechanism would work
Build day 3 this weekend
Possibly use fusion 360 to give an idea of how to machine parts
Will download the software
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
N/A
Risks and Areas of Concern
Locking mechanism
Planning to do either one of the two:
Locking controlled by one foot pedal and unlocking controlled by another
Foot pedals will control unlocking/locking of different joints
Base
Simplified base
Electronics
Currently coding and will wire this weekend for build day 3
Resources or Information Required but not Available
Machining store, most likely ProtoLabs given our remaining budget
Schedule
Build day 3 (May 16-17)
Meeting with instructor (May 14)
Meeting with sponsor in person (May 21)
CAD, testing, analysis all before May 21
Budget (list amount spent and amount remaining)
Amount spent: $302.61
Amount remaining: $697.39
Progress on Report and Webpage
Working on week 8 draft 2
Webpage updated weekly