2020-07-28 Meeting Minutes - General

Andrew T.

• Working on ->

• New arm pcb integration design

  • Hand off to Emily for layout when done

• Connector hub for TQ motor configuration

Andrew Z.

• Started on very simplified version of current CAD model

• Finished simple version of drivetrain subassembly that’s attached to the wheels (not sure if there’s a name for it)

• Work on frame

• Work on arm

Alaina

• Hub attachment 

• Science camera mount

• 4-Wheel CAD

• Welding document 

Asha

• Drivetrain falling math

• Beam bending reading

• Science CAD fixes (elevator height etc)

• Drivetrain material properties etc

Caleb

• Gimbal - added metal bearings (made hole bigger & stuck needle bearings instead of printed ones)

• Gimbal - shortened it (more compact roll/pitch)

• Gimbal - Epoxy calcs (epoxy works)

• Science motors - confirmed eligible motors 

• Briefed on claw ideas for hex key 

• Met with Tony for ANSYS

• Possible designs / ideas for claw hex key

• Haven’t verified ansys license yet

  • Figure out after meeting

Tony

• Motor test bench design finished

• Firmware flashed

Drivetrain work

• Define drivetrain constraints and requirements in system doc

• Finish reading unidirectional composite material properties, estimate structural member sizes

• Design a 3-D printed motor housing

• Finish alternate design using ILM 115X25

• Source and purchase appropriate power resistor for Odrive

• Flash Odrive firmware st-link on disco board; also probably need to configure based on the encoder being used

• Tire energy methods FBD

Claw re-work

• Allen key attachment friction-torque calculation

• Finish flexure design

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

• E-box connector panel

• 3D-Printing research

• Figuring out topology optimization “smart infill”

• Finalize e-box connector panel  

  • Meet w/ david → Waiting on kyle from electrical? 

• 3D-Printing

  • Print & test some parts

Emily

• Laid out groundwork for stress/strain analysis for CF members

• Finalize science PCB plan & put into CAD

• Finalize stress/strain research once I receive values from Asha

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