2024-07-24 Mechanical Meeting Minutes

Date

Jul 24, 2024

Attendance

@Ben Lovegrove

@Calum Chisholm

@Collin Tan

@Evan Janakievski

@Justin Liu

@Nathaniel Li

@Pranav Bommireddipalli

@Smile Khatri

@Sohee Yoon

@Thushanth Parameswaran

Team Announcements

Item

Presenter

Notes

Item

Presenter

Notes

Last flight test

 

  • Light flight test, no crashes, auto-tuning issues

Upcoming Team Events

 

  • Houston flight test this Saturday!

  • Going to run auto-tuning, if it’s successful then more testing with autonomy stuff

  • WARG firepit social this Friday at 8pm! Everyone is welcome

Other Announcements

 

CONOPS Preview

 

https://discord.com/channels/776618956638388305/776618957138034690/1262579540773830760

Updates

Item

Presenter

Notes

Item

Presenter

Notes

3D printing

 

Weatherproofing

 

  • CAD has been reviewed

Electronic Cases

 

  • Need to get cases finalized soon! EE is working hard to finish wiring, it will be ready soon for sensors.

Antenna Tracker

Justin

  • Identified screw holes misalignment in the upper base plate (the plate mounts the antennas and gemini), working on modifying design to a larger plate that so the gemini doesn’t overhang.

  • The spacer rod is about 9 mm too long causing tensile stress in one of the aluminium bend mounts (I’ll need to cut that and re-tap it)

  • The 3D printed antenna holders are loose due to friction wear, may consider designing a metal one or just 3D print another one (easiest way).

Tasks

 

  • Pixhawk (flight controller) needs to be mounted on Pegasus 2.0. Is anyone interested in this assembly task? (may involve 3D printing?)

    • The mounting CF plate has already been water-jet and is in the bay

    • @Calum Chisholm to do this

Fixed wing empennage

 

  • choosing airfoils for vertical and horizontal stabalizers

    • where’s our center of gravity gonna be?

    • start with slightly camber for now?

    • more input required for horizontal

    • need to do research on control surfaces

  • 2 servos

Fixed Wing Calculator

 

Fixed Wing Calculator.xlsx

Frame

 

  • moving pixhawk above the wing spar?

    • difficulty mounting the tail

  • Mounting servos

    • in the wing

  • Motor mounting to the frame

    • Evan to write up a task for this sometime later

  • Join Evan and Alison in discussing the frame tomorrow at 9pm EST

Wings

 

  • Balsa ribs, monokote wrap

PDM

 

  • Throw CAD into Design-thread and @Smile Khatri will move it into PDM using warg desktop

  • Control surface for roll axis to be worked on by @Nathaniel Li and @Sohee Yoon

New task

 

Next Meeting

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