2022-01-11 - Mechanical Meeting Minutes

Goals

Welcome (more) new members!)
Review status of the rover
Review work delegation

New Member Introduction!

Name	Program & Year	On-Campus?
Arlo	1B Mechanical	Campus (2-3 weeks)
Charmaine	3A Mechanical	Campus
David	3A Mechatronics	Remote
Kenneth	1B Mechanical	Brampton
Kyle	2A Mechatronics	Campus (co-op)
Olivia Y	1B Mechatronics	Campus

Demtool Feedback

Consider the number of set-ups required to make a piece
- Make blind holes through if possible
- Ex. MR22-DT-P0116 (suspension)
Give them the part, then they will account for machining modifications
- Ex. MR22-DT-P00027 is to be laser cut. We'll send them a step of the file with nominal holes, then they'll modify it to be cut undersized so that it can be reamed
- Want assembly drawings and assembly STEPs to understand the context of a piece!
Can give some sort of note or way to inform them of non-critical features, i.e. clearance holes, unimportant radii
- Put in a note or don't label it
- Think of them as gauging instructions (for outsourced stuff), i.e. the dimensions we actually want to measure
  - If being CNC'd

Update & Action Items

If you're free to machine, state your availability for this week!

Member	Update	Action Items
Emily Adam	Overall drivetrain updates... CF tube sourcing Comms stand relocation Battery relocation & mounting Bonding test status Bonding fixture discussion Coordinating machining Ordering... First round of EMS stock purchased for machining → more to be bought for tomorrow Putting together McMaster-Carr BOM Visited Demtool! Got feedback on how we can best prepare our parts to be machined by them	Tn → order EMS stock, assign machining Finish McMaster-Carr order Email Demtool with a priority list Agile manufacturing order Touch base with Austin about ordering CF tubes Check Demtool drawings for feedback Battery mount review
Austin Tailon Huang (Deactivated)	Overall arm updates Brian is open to CNC'ing P0060 Main arm design complete Reached out to SKF; waiting for response Maxon motors arriving this week	Continue COTS tracker for SKF, Misumi McMaster, DFROBOT, servo-city? Select drill and angle grinder for weef funds Order stock for P0060 and figure out stock sizes for remaining parts A4 sensor mount
Max Apitz-Grossman	Suspension bom done Drawings sent in drafting soon for approval/more feedback	Relocate dowels on bogie block Updates to rocker block Go through science and compile a list of stock to be sourced for the machining homies Get someone to handle gimbal
Ethan Cronier	Worked on part tracker review drawings	reimbursements approve gripper drawings assy drawings for science attempt 0116 - process drawing? 0116 needs changes
Andrew Tersigni (Deactivated)	relocated comms/gimbal stand to back of chassis	make drawings for new chassis comms stand parts update chassis BOM update parts/drawings for new CF bonding diameter update part machining tracker for chassis
Asha Mills Emmett (Deactivated)	Updated tracker CAD is good	Implement Demtool's feedback Drillpoint Material choice Availability: screwed either way
Elizabeth Jung	Implemented bonding fixture feedback	Availability: 1-3 afternoons Need to finish training
Olabisi Sanusi	Battery mount revisions	Review battery mount w Emily (and others)
Chanpakorn Chaiklahan		Availability: Saturday Iffy for weekdays
Medina Colabrese	Started updating drawings	Finish updating drawings BOM
Jasmine Milan	Some machining done! MR22-DT-P0200 MR22-DT-P0033 Printed parts for science camera mechanism	Order parts for science camera controller (BOM) Run science camera mechanism design by Max Available for 1 day of machining in the next week or so
Abdul Haseeb
Thomas Valer	Motor controller enclosures, final touches now	Finish up, talk to Austin
Steven Gong	Finish designing screwdriver mount for end effector Research parts for Mars Lander testing station	3D Print Screwdriver Mount for the end effector CAD + maybe Order parts for the testing station Availability: Saturday Iffy for weekdays
Conall	Assembly part of CAD WIP Machining! Bonding test fixture VP adapter in the works	Availability: ~4ish hours during the week Saturday
Ryan C.	Machine shop training complete Drawing part WIP End effector drawings	Routing clip Availability → message Ethan Wednesday, Thursday (fewish hours) Saturday
Simon	Science mount → done! 3D print tolerance experiment Double-check that it's the correct size of stock Drawing part WIP Machine shop training WIP
Alysha	Training WIP!
Ash
Chris	Training WIP!
Gavin	Training complete!
Joshua
Matthew	Training WIP Machining training done!
Olivia Z.	Machining training done! Drawings part WIP	Availability: Whenever (4-5 hours)
Ryan M.	Training!
Zia	Training!	E-box...once training is complete

New Tasks

Gimbal assembly maintenance → Simon
- Person to talk to: Max
Processing tensile test data (1B or higher) →
Bonding fixture for chassis → Thomas
Fix/tune the printer (first level calibration, benchy testing, figure out how to get good prints. ideal for someone with low level familiarity of how a 3D printer works), printer technician → Simon, Charmaine
- 1 week timeline
Drafting
- Assembly drawings!
  - Chassis
  - Suspension
  - Wheel cxn
Machining!
- Let Emily know your availability this week
  - Machine shop hours: 8:30am - 9pm M-F, 10am - 5pm Sat.
- Need to complete ESMS Safety training before we can get you started
  - Course found on LEARN called “ESMS Safety Orientation”
ARM TASKS
- A2/A3 Link CNC IN-PERSON → Conall
- Need someone to own machining + assembly for A1, A2, A3, A4 (ideally 4 different people)
  - A1 →
  - A2 → Ryan
  - A3 → Conall
  - A4 →
  - This is an IN-PERSON task
  - Familiarize yourself with assembly while stocks/boms are finished this week
- Camera Mounting Interface Design (Remote) → Matthew
- Drawings for Axis 4 Parts:
  - P0243
  - P0244
  - P0245
  - P0246
  - P0247
  - P0248
  - P0250
  - P0251
  - P0254
  - And any missing assembly drawings

Members who need edit Access for Confluence

Charmaine Chun: c3chun@uwaterloo.ca
Gavin Mesz: gmesz@uwaterloo.ca
Conall Kingshott: ckingsho@uwaterloo.ca
Simon Gorbet: sgorbet@uwaterloo.ca
Kenneth Francis: k23franc@uwaterloo.ca
Zia Formuly: azformul@uwaterloo.ca
Ryan: r2mark@uwaterloo.ca

General Notes

Old CF tube size: 32mm OD x 29mm ID
New CF tube size: 1.257" (31.9278mm) OD x 1.125" (28.575mm) ID
- ID tol: +/-0.006"
- OD tol: +/-0.012"
  - Need to update bonding pieces & template