2020-08-18 Meeting Minutes - General

Andrew T.

• Worked on ->

• Finalize PCB shapes w/ Tony
• Wheel Hub Design stuff

Andrew Z.

• Talked to Azum about requirements

• Make some part modifications
• Start arm 2D sketch
  • Meeting for PCB shape can also be about how the arm works and where the joints are

Alaina

• Installed Ansys
• Welding document 
• Working on: Hub attachment 

• Science camera mount
• Tony: Angle on 4-wheel design only thing holding up drivetrain CAD card on Trello -> but we don’t need this right? 

Asha

• Drivetrain weight calculations

• Science CAD fixes (elevator height etc)
  • Design review - Try to 3-d print as much as possible, figure out some tolerances if needed
• Machining thread on a lathe

Caleb

• Small gimbal changes, finalized design to print

• Claw Key 
  • Look into making a mini torque wrench-like device
• Torsion spring
• Ratchet
• Arm CAD fixes

Tony

• Created MOD-1 version of Wheel Assembly CAD based on motor testing findings
• Gimbal final review

Drivetrain work

• Design Analysis of Wheel Assembly MOD-1
• Define manufacturing workflow for drivetrain
• Create a BOM for wheel assembly for cost analysis
• Define drivetrain constraints and requirements in system doc
• Finish reading unidirectional composite material properties, estimate structural member sizes
• Tire energy methods FBD

Gimbal

• Print Gimbal parts

Odrive

• See Odrive can run motor on back EMF
• OR (not preferred, I’m broke) Buy a “normal” BLDC with hall feedback, scope and test with odrive

Documentation / Support work

• Editing TQ meeting document so it’s readable for everyone
• Start new ordering sheet; add good slip-ring to ordering sheet

Misc work

• Set-up Solidworks PDM / SQL 2014
• Make a typical manufacturing tolerances table

Cole

• Figured out smart infill 

• Finalize e-box connector panel  
• Meet w/ david → ??? → haven’t heard from him in a while
• Research what’s needed to use PC filaments with PRUSA I3

Emily

• Update rocker hub for new joint connection design & finalized drivetrain angle

David 

• Redesigned bottom plate for science to have mount for PiCam
• Experimented with topological optimization and generative design for PiCam bracket mount
• Researched alternative materials for e-box

• Have meeting with Cole about e-box connectors
• Finalize layout for e-box components
• Re-design bottom plate for science to have mount for science
• Looking for more work (drivetrain/looking for something more technical) - hopefully something I can finish by September