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Min Qian Lu

Aidan Lehal

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Team member

Aidan Lehal

Abdelrahman Hassouneh (Unlicensed)

Mohamed Goha

Salman Rasheed

Min Qian Lu (Deactivated)

Task as of March 22 30 '21

Base design

Ribs design

Ribs design

Base design

Lead

Updates, April 3

  • Created jig for rib-tube and tube-tube welding

  • Created Confluence page highlighting jig design process

Next steps

  • run jig idea by kimberly, see what she thinks

  • tube to tube jigs

  • tub brace to sit on ground

  • cad

  • material used for ribs

Base design

...

  • dip problem, classifying the dip, is it parabolic or linear etc

  • meeting with hubert

  • material used for ribs

  • dip problem, classifying the dip, is it parabolic or linear etc

  • meeting with hubert

  • run jig idea by kimberly, see what she thinks

  • tube to tube jigs

  • tub brace to sit on ground

  • cad

Base design

S-Tier requirements and constraints

  • Accuracy!

    • Light blue = ribs, green = base

    • Image Added

      If any of these are off, the accuracy of the panel will be greatly comprimised

    • Z-axis also needs to be accurate, as it will also impact the top surface of the mold

  • Stability

    • the ribs and the surface sheet metal don’t provide too much stability, thus the base needs to be sturdy to prevent distortion due to moving the surface sheet metal or sibs

A-Tier requirements and constraints

  • In house machinability

  • Avoiding welding

    • Loctite H8000 adhesive?

  • Cost

  • Weight, moving it around by hand with 2-4 ppl would be nice

Rib design

S-Tier requirements

  • Correct geometry

    • given the assumption of a stable base, the geometry of the top sheet must be accurate to the panel that we want

  • Strength

    • we will be laying carbon fiber on there and will naturally be applying weight to the mold. Being able to handle 100lbs + F.O.S would be benefitial

    • Attempting to fix this by thickening the ribs is not preffered. Solving by changing the geometry of slots etc. would be best

A-Tier requirements

  • Rib height

    • By increasing rib height, we greatly sacrifice the stability of the mold. If this is necessary for the design, so be it. But keeping it low would be nice

  • Flexibility

    • Allowing for different base concepts is nice. This will require communication between parties.

Archive of tasks and goals

Team member

Aidan Lehal

Abdelrahman Hassouneh (Unlicensed)

Mohamed Goha

Salman Rasheed

Min Qian Lu (Deactivated)

Task as of March 22 '21

Material, solar array and bonding solutions

Validating that the roof can be done in this manner

Creating process to create CAD

SI/speccing. Will work closely with Aiden. Currently finding aluminum

Lead

Status

Looks good

  • glue

  • Material, solar array, and bonding solutions

    • Find material that is suitable both for ribs and top sheet

      • ribs must be held to a high degree of dimensional tolerance

      • 3/4” MDF had a history of cracking at ETS. We can either increase number of ribs, change the slot geometry on the ribs, or somehow decrease load on each rib

      • also, consider build surface. At ETS, they used a jig of sorts

    • Solar array

      • want to include solar cut-outs on our mold

      • probably brainstorm ideas and run them by Brian from E5

    • Bonding

      • bond ribs and top sheet

      • would be nice to avoid welding but need a solution that is still sturdy

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