Houston Landing Gear V2

 

Big Project

Project

Project Manager

Big Project

Project

Project Manager

Houston

Landing Gear

@Conall Kingshott

Task Description

The objective of this task is to design a landing gear for the HOUSTON class aircraft.

Constraints

Constraints

Written By

Append Date

Constraints

Written By

Append Date

Must be able to mount:

  • L5 Nucleo

  • ZP3

  • Jetson (since Jetson won’t be used in Pegasus, Houston won’t run tests with jetson for comp 2023. This might change in the future )

  • Rpi 3 model B plus/4B

  • $200 CV camera

Also, ports on these components must be easily accessible.

@Smile Khatri

2023/09/30

Must have a flat surface for mounting devices on the top and bottom of the drone

@Smile Khatri

2023/09/30

Must accommodate 360 lidar

@Smile Khatri

2023/09/30

Must be light weight

@Smile Khatri

2023/09/30

Relevant Contacts

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Subteam

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Subteam collaborating with

@ of contact

what is the contact responsible for?

Assignees

Assignee

Asana Task

Date

Assignee

Asana Task

Date

@Merek Lohnes

Mechanical - Houston Landing Gear V2 - Asana

2023/05/18

Task Progression/Updates

Author: @Smile Khatri Date: 2023/09/30

Manufacturing Update

HOUSTON Version 2 landing gear

This is the second iteration of the Houston landing gear which was completed in Spring 2023. The landing gear was manufactured out of sheet metal Aluminum. An aluminum plate is attached in the middle to connect and stabilize all 4 legs, and act as a mounting point for Jetson and other components.

Underside set up

On each leg, there are two nuts and bolts that clamp the mounting plate and the leg together. The center plate also has holes which are used to attach other mounts and the Jetson (which is bolted directly to the plate).

 

As of present, Merek is finalizing his design for a new mounting plate which will have proper mounting holes to accommodate the Jetson. He is also designing 3D printed ‘boots’ which will attach on each of the 4 legs. I am able to bend the new mounting plate and print the boots or, it can also be assigned as a task to new members.

 

Design notes:

  • Add more clearance for the CV camera on the mounting plate. In the image below, the power input terminal of the CV camera is placed against the metal plate. This makes aligning the screw holes difficult.

  • Rpi 3 plus mechanical drawing can be found here Allegro (raspberrypi.com)

    • Just need to change up the mounting holes. I don’t think it’s necessary to design 3D printed mounts for the Rpi, we can directly bolt it to the plate (to make sure no electrical components are shorted if they come in contact with Aluminum. We can use extra nuts to act as ‘spacers’ between the Rpi and the plate.

  • Potentially need to redesign the legs as well to add more room and access to the ports on the Rpi and other components. With the current plate, it’s impossible to access the ethernet port (however, ethernet port is only used AFTER flight testing so Rpi can just be taken off when it needs to be used…)

    • If it’s too challenging to make the ethernet port accessible then we can ignore it. However, the two big USB ports and the HDMI (connects to desktop) and the power MUST be accessible.