156B Week 8
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Brushing subassembly designed and assembled.
80/20 framing connected by angle brackets. -- May still use thread locker in the final deliverable
Bearings, shafts, and pulleys mounted to the framing in a hexagonal pattern. -- Still need to implement tensioning
Bristles mounted to belt via 3D printed brush holder. -- Need to attach 6 and test with that.
Motor mounted to frame and connected to shaft. -- Need to create casing for the electronics
Arm support subassembly designed and fabricated.
Possible redesign if there is remaining time.
Virtual analysis and simulations complete.
Need to test brushing subassembly for force and speed constraints.
Accomplishments from Previous Week
Determined flaws with previous brush holder
Began testing the pulley and belt using the motor for noise and vibrations.
Brush holder redesigned, printed, and attached to belt.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Create casing for the brushing subassembly.
Buy plywood from Home Depot.
Mount plywood to the 80/20 framing.
Work on getting motor and electronics running.
Get motor encoder readout and convert to readable form.
Test motor at 30 cm/s and with 6 brush holders attached.
Mount electronics to brushing subassembly.
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
N/A
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Presentation looked good, need to extract key slides to prepare for the final presentation.
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
Electronics need testing
Motors might still cause too much noise/vibration
Motor needs to get belt to operate at 30 cm/s
Resources or Information Required but not Available
N/A
Schedule
Finish brush holder
Start work on electronics
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
Amount Spent: $748.42
Amount Remaining: $851.58
Progress on Report and Webpage
Preliminary Design Review uploaded to site
Week 8 updated
Updated website to include current draft of the final report