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2021-09-16 Meeting Minutes - Drivetrain

2021-09-16 Meeting Minutes - Drivetrain

Sept 20, 2021

10 Days until Prototyping Conclusion!

→ Wrap-up meeting, next Sunday 7pm ET (Sept. 26th)?

Goals

  • Review prototyping progress

  • Introduce new member?

  • Discuss & assign bonding prototyping

  • Discuss budget plan for Drivetrain

Current State of Progress & Action Items

Prototype

  • Mechanical assembly

    • Changes successfully made to make more robust

      • Upgraded bearing plates to have more mounting holes, added loctite to gearbox mounting screws, replaced wood screws with 1 1/4" long screws around the motor

      • Added horizontal support beams to stiffen pegboard

      • Deflated the tires slightly so that we could bring the hubs closer together, adding more clearance between the wheel and the frame

      • Mounted controls board

    • To do still:

      Bring Wheelez to an equal pressure → borrow Medina's bike pump!
      Assemble the legs back on the chassis
      Print battery and weight holders, add to bottom layer of chassis
      Cut and add wheel treads
      Create & fabricate attachments to keep differential bar in place

Update & Action Items

Member

Update

Action Items

Member

Update

Action Items

@Emily Adam (Deactivated) (Differential bar)

  • Mechanical fixes and wiring corrections to prototype

  • Made hard stops for the differential

  • Read over some rocker-bogie papers

  • Started looking into motors

  • Testing testing testing!

  • Going through current data, comparing to our calculations

  • Finish motor candidate list

  • Read more papers. Looking for guidance and learnings from designing rocker-bogies

  • Buy sample carbon fibre → work on mech budget

@Former user (Deleted) (Wheel connections)

  • Set up ANSYS for Karan but then Karan left... sadge

  • Did some research into connections (from SAR videos) and got some inspiration for my designs

  • Motors in wheels? 😳

  • Sketches and rough CAD

@Former user (Deleted) (Chassis)

  •  Figuring out antenna specifics with Farris

  •  Creating mounting plates for mechanisms

  • Edits to chassis, make stiffer, verify with quick FEA calcs

  • Stalled by antenna specifics and gimbal 😳

@Former user (Deleted) (Frame/structure)

  •  Mechanical reassembly

  • Printing holders & fixtures

  •  Random drivetrain stuff

  • CAD for frame

  • CAD CF connection piece