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2022-04-05 Mechanical Meeting Minutes

2022-04-05 Mechanical Meeting Minutes

Meeting Participants

Meeting Participants

@Emily Adam (Deactivated)

@Austin Tailon Huang (Deactivated)

@Max Apitz-Grossman (Deactivated)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


General Announcements

  • Last full meeting of the term, good luck with exams!

    • Feel free to ping either of us or the Discord with questions if you’re continuing project work throughout the remainder of the month

  • If you are going into the bay, please sign the sign in sheet!!

Drivetrain - Updates

Drivetrain Integration

Champions

  • @Emily Adam (Deactivated)

Updates

  • Assembled all motors onto the chassis!

  • basically only the tires need to go on now

Blockers

  •  

Weekly Retrospect

Finish WHOLE drivetrain assembly! Apr 3, 2022

Weekly Targets

Finish WHOLE drivetrain assembly! Apr 10, 2022

 

Wheel Connection

Champions

  • @Asha Mills Emmett (Deactivated)

Updates

  • Got all of A0030 assemblies onto the rover

Blockers

  •  

Weekly Retrospect

Print new test encoder housing @Emily Adam (Deactivated)Apr 1, 2022
Assemble remaining encoders to motors @Emily Adam (Deactivated)Apr 1, 2022
Finish assembly!! Apr 3, 2022
Army print remaining wheel hubs in PETG @Asha Mills Emmett (Deactivated)Apr 3, 2022
Replace fasteners mounting gearboxes to P0106 with flathead screws @Emily Adam (Deactivated)Apr 1, 2022
Cut wheel hub keys to length @Chanpakorn ChaiklahanApr 3, 2022

Weekly Targets

Assemble new encoder mounts on to rover @Emily Adam (Deactivated)Apr 8, 2022
Assemble tires onto rover @Emily Adam (Deactivated)Apr 10, 2022

Chassis

Champions

  • @Andrew Tersigni (Deactivated) @Chanpakorn Chaiklahan

Updates

  •  

Blockers

  • N/A

Weekly Retrospect

(link previous weeks updates here)

Cut comms stand plate with Olabisi’s battery mount plate @Emily Adam (Deactivated)

Weekly Targets

Differential Bar

Champions

  • @Emily Adam (Deactivated)

Updates

  • Added jam nuts on one side!

  • Destroyed the bolt on the other side

Blockers

  •  

Weekly Retrospect

Add jam nuts on either side of the turnbuckles @Emily Adam (Deactivated)Apr 1, 2022

Weekly Targets

Reprint spacers and metal sleeve in PLA @Emily Adam (Deactivated)Apr 10, 2022
Add jam nuts on either side of the turnbuckles @Emily Adam (Deactivated)Apr 10, 2022

Suspension

Champions

  • @Max Apitz-Grossman (Deactivated)

Updates

  • Added missing fasteners to secure the plates

Blockers

  •  

Weekly Retrospect

Create tracking page for build notes/observations (investigate why one side is more rigid than the other) Mar 12, 2022@Max Apitz-Grossman (Deactivated)
Add missing fasteners onto plates @Emily Adam (Deactivated)Apr 1, 2022

Weekly Targets

Drivetrain - High Level Goals

Active Goals

Assemble full drivetrain
Finish printing all wheel connection parts
Finish machining all chassis parts
Finish machining all differential parts
Finish qty 6 wheel connection assy.
Finish differential bar assembly
Finish chassis assembly
Finish suspension assembly

Drivetrain - Known Issues

Arm - Updates

Arm Integration

Champions

  • @Austin Tailon Huang (Deactivated)

Updates

  • Sorted out some updates with Axis owners

  • Strain wave gearbox in process of assembly

  • Tracking master page: https://uwaterloo.atlassian.net/l/c/bvgM5cHA

  • Fit class on crossed roller bearings was improperly spec’d for A1, A3, A4

    • Slight interference was included in upper lower bounds - (potential interference of 9μm)

Blockers

  • Waiting on joints to finish assembly before full arm integration

Weekly Retrospect

Get status update from Axis owners @Austin Tailon Huang (Deactivated)Mar 24, 2022
Create tracking pages on confluence to store build notes, progress pics, photos and observations @Austin Tailon Huang (Deactivated)Mar 24, 2022
Develop joint level testing plans @Austin Tailon Huang (Deactivated)Mar 28, 2022

Weekly Targets

Get status update from Axis owners @Austin Tailon Huang (Deactivated)Mar 31, 2022
Document fit class mis-spec in 2022 Arm - Build Notes@Austin Tailon Huang (Deactivated)Mar 31, 2022
Develop joint level testing plans @Austin Tailon Huang (Deactivated)Apr 4, 2022

Axis 1

Champions

  • @Ryan Mark

Updates

  • Began assembling axis

  • Messed up epoxy order for part - worm gear was flipped when bonded to shaft

Blockers

  • Epoxy issue

Weekly Retrospect

(link previous weeks updates here)

Machined part MR22-A1-P0040, MR22-A1-P0037/38, and some others and completed ESMS Training
Talk to Austin to see if two parts can be machined @Austin Tailon Huang (Deactivated)@Ryan MarkMar 8, 2022
Touch base with Austin to figure out what fasteners were replaced @Austin Tailon Huang (Deactivated)@Ryan MarkMar 4, 2022
Discuss assembly of Axis 1 and order of operations
Check the fit class for aluminum shaft and bearing to make sure it is proper @Austin Tailon Huang (Deactivated)Mar 23, 2022

Weekly Targets

Manufacture worm gear shaft
Rework worm gear / shaft assembly Apr 8, 2022@Ryan Mark
Order replacement worm gear Mar 29, 2022@Austin Tailon Huang (Deactivated)

Axis 2

Champions

  • @Ryan Chan

Updates

  • Talked with austin about getting the parts needed

  • Trouble finding stuff

  • Going to work on arm and find parts this weekend

  • Cant make the meeting -Ryan

Blockers

  • Midterms prevented work on the past week

Weekly Retrospect

Figure out who is bringing the strainwave gearbox to Waterloo @Austin Tailon Huang (Deactivated)Mar 8, 2022

Weekly Targets

Allocate machining tasks @Ryan Chan@Elizabeth Jung (Deactivated)Mar 12, 2022
Sync-up on part tracker to create full list of outstanding tasks and parts @Ryan Chan@Elizabeth Jung (Deactivated)Mar 10, 2022
Host short meeting to touch base on assembly and next steps @Ryan Chan@Elizabeth Jung (Deactivated)Mar 10, 2022
Machine waterjet parts, large L bracket, find all OTS items

Axis 3

Champions

  • @Kenneth Francis

  • @Conall Kingshott

Updates

  • Assembly ongoing

Blockers

  • Free time

Weekly Retrospect

Machine part P0061 @Zia Formuly (Deactivated)Mar 12, 2022
Machine part P0240 @Conall KingshottMar 12, 2022
Touch base on assembly plan @Austin Tailon Huang (Deactivated)@Kenneth Francis@Conall KingshottMar 10, 2022
Start assembly! @Kenneth Francis@Conall KingshottMar 13, 2022
Check bolts for folded part @Austin Tailon Huang (Deactivated)Mar 23, 2022 - ordering a box

Weekly Targets

Continue working on assembly @Conall Kingshott

 

Axis 4

Champions

  • @Gavin Mesz @Arlo Symons

Updates

  • Roomate got covid (Gavin) so I wasn’t able to get into bay

Blockers

  • Final Exam Study fun

  • Transmission hub’s (P0247) dimensions off a little bit, very hard to press fit into the face mounted bearing (needs small amount of sanding and a chamfer on the edge)

Weekly Retrospect

Weekly Targets

Finish assembly 12 and start assembly 48 (48 is top of below and 12 is bottom) Apr 8, 2022
Hoping to get into the bay sometime right after Calc exam on Apr 8, 2022 with Arlo and get a bunch done
Current state of the assembly (could possibly need pointers from a mechanical team member on assembly drawings. Seen them being done in drafting)

Axis 5/6

Champions

  • @Medina Colabrese (Deactivated) @Charmaine Chun (Deactivated) @Olivia Zheng

Updates

  • All parts made, assembly started!

Blockers

Weekly Retrospect

Finish machining P0064, P0065, P0066, P0025, P0080A, and the new bushings (@Medina Colabrese (Deactivated)@Olivia Zheng @nick)
P0115A done! (big thanks to Jeff)

 

Weekly Targets

More assembly progress (maybe we can finish at the next session??)

O-Drive Enclosures

Champions

  • @Thomas Valer (Deactivated)

Updates

  • All changes are made

  • Meet this week to review?

Blockers

  • No blockers

Weekly Retrospect

Meet to review design and discuss next steps @Austin Tailon Huang (Deactivated)@Thomas Valer (Deactivated)Mar 3, 2022

Weekly Targets

Integrate feedback from design review @Thomas Valer (Deactivated)Mar 11, 2022
Final review once changes are made

Arm Control Fixture

Champions

  • @Abdul Haseeb (Deactivated)

Updates

  •  

Blockers

  •  

Weekly Retrospect

Weekly Targets

Arm - High Level Goals

Active Goals

Assemble full arm
Finish fabricating all parts for Axis 1
Finish fabricating all parts for Axis 2
Finish fabricating all parts for Axis 3
Finish fabricating all parts for Axis 4
Finish fabricating all parts for Axis 5/6
Assemble Axis 1
Assemble Axis 2
Assemble Axis 3
Assemble Axis 4
Assemble Axis 5/6
Finish O-Drive enclosure design
Fabricate O-Drive enclosures

  • Move completed goals here

Arm Known Issues

Science Updates

Science Integration

Champions

  • @Max Apitz-Grossman (Deactivated)

Updates

  • Assigning members to be various task champions

Blockers

  • Fastener ordering, including some the ems store doesn’t carry

  • Still need some champions

Weekly Retrospect

(link previous weeks updates here)

Weekly Targets

assembly drawings done by end of week Mar 15, 2022
all ems fasteners ordered, going to hold back on mcmaster/other sources for the niche bolts until we have more to order

Drill Bit Module

Champions

  • Zia Formuly

Updates

  • Created assembly drawings

  • Finding all the parts → looks like nothing is missing

Blockers

  • Finding parts

Weekly Retrospect

(link previous weeks updates here)

Weekly Targets

Create assembly drawings @Zia Formuly (Deactivated)
Find all parts and make sure they have been machined @Zia Formuly (Deactivated)
Assemble drill bit module @Zia Formuly (Deactivated)

Dirt Read Head Module

Champions

  • Ronald

Updates

  • Rearranging sensors positioning so they don’t interfere with anything. And making sure they can be held properly.

  • Gotta find the sensors

Blockers

  • Bit busy with school. Slow progress is all.

Weekly Retrospect

(link previous weeks updates here)

Weekly Targets

Insert progression target for the week, with owner.

Elevator Modules

Champions

  • @Chanpakorn Chaiklahan

Updates

  • Completed assembly drawings

  • A0034 fixed

  • Assembly partially done

Blockers

  • A0034 does not sit well on the frame

    • the extension part at the bottom is too wide

    • might have to file it down or lightly hammer it in

  • Sleeves and shafts for A0034 are nowhere to be found

Weekly Retrospect

(link previous weeks updates here)

Weekly Targets

Make changes in the assembly drawings for A0034 and A0035
Complete the assembly

Test Tube Module

Champions

  • Ryan Mark

Updates

  • Still need to fix dirt delivery nozzles based on new dimensions of test tubes (also need to find all of the test tubes in the bay) @Gavin Mesz

    • nozzles need 3D print prototypes to test fit new o-ring

  • Tried printing 3D part but some issues with print

  • Worked on assembly drawings and collected feedback

Blockers

  • One of parts did not fully print (98% of way in effect) <-

  • Need assembly drawings done

Weekly Retrospect

(link previous weeks updates here)

Printed tube rack, test tubes fit (but will need to sand the edges of part with larger diameter)

Weekly Targets

Print final part, not sure how much progress for assembly due to exams

Base Frame

Champions

  • Taim

Updates