Home T.O.C. Next step


This page presents the first and second ideas for my final project.

First idea

Second idea

Goals

Create a modular fixed wing drone from scratch that is easily


Achievable in a Fab lab

(by a non specialist member)


Modifiable


Transportable


Reparable


Reproducible

(to create a fleet of drones)




The figure 1 shows a hand sketch for a modular drone.
For more information on this design and other modular designs check the Hand sketches page.

Aims

Help including local communities in the process of environmental conservation efforts.
Design and construction of drones for big conservation projects are currently done by either


Universities


Companies


International NGO


and seldom by local communities. The drones, made or bought, are usually transported to the place where the conservation mission take place.

Example: the Air Shepherd project

In the Air Shepered project, drones are used by trained pilots to spot poachers by night in National Parks protected areas.
The drones carries infrared camera, allowing operators to detect humans in the dark.
The operators then transmit the information to rangers that deploy in the area and prevent the poaching.
This approach is efficient as the sole presence of a drone in the sky act as a deterrent for poachers (which might get killed in combat with rangers).
The drone are produced and operated by trained pilots of UDS, which “work with locals to identify threats to elephants and rhinos”.
What are this threats? According to Air Shepered website poaching generate an estimated 70 billion dollars benefice a year on black market. One pound of Rhino horn, which is associated to medical myths, is estimated to be worth 30 000 dollar on Asian black market.

Why?

I believe that the implantation of a Fab lab could create an ecosystem which benefit both the conservation effort and the local communities.

Example: the Air Shepherd project

In Fab lab, members could create simple to build, yet functional, fixed wing drones. Add training for local pilots, and the community could make a fleet of remotely controlled drones to fight again poachers at night.
This surveillance drones could also be used by day for FPV (First Person View) tourism. The advantages are the following:
This could create an alternative to poaching for local communities to earn money.

How?

First idea

With a website teaching Fab lab members “How to build a modular drone for a conservation mission from scratch”.

Specification for the website

  1. Goals and constraint
    1. Airworthiness
    2. Likely Failure Modes
      1. Aerodynamics and stability Failure
      2. Structural Failure
      3. Motor Failure
      4. Control system Failure
    3. Systems Engineering
      1. Work-breakdown Structure
      2. Interface Definition
      3. Allocation of responsibility
      4. Requirements Flowdown
      5. Compliance testing
      6. Cost and weight Managment
      7. Design “Checklist”

Second idea

Design a parametric drone using opensource softwares and document its conception, construction and then operation.

Specification for the drone airframe



Modularity
This is the core principle of my project and it should allow:


Ease to build for the whole drone by assembling simple modules


Fast building by allowing parallel builds of modules


Ease to transport by stacking the modules in boxes

Isn't this project (way) too ambitious for fab Academy time frame?

Rational answer

Less rational answer

Modified citations

Shoot for the moon. Even if you miss, you'll land among the stars [in dark cold outer space]”.
Which is OK because “In space, no one can hear you [cry]”

Original citations

Covid 19 lockdown



It is where the switch happen between first and second idea for the final project.

The Digiscope Fab Lab was closed for 3 months due to Covid lockdown here in France.

I was planning to make several drones versions and test them at the club location.

But the club was also close during lockdown.

So I ended with 2 days, instead of a full week, for each assignment from week 7 to 18 and then keep one week for the final project.

Note: the design I made during Covid lockdown needed adjustements that can only be checked after the part is produced with the machine of the Fab Lab.

List of possible and probable failures

The final fixed wings drone is:


Too heavy


Too fragile


Too unstable


A pain in the assembly ^^

Fallback

My B plans if some of the failure above happen and seem impossible to fix:


No fly tests, focus on the concepts and the build

References

1Keane, Andrew J and Sóbester, András and Scanlan, James P, Small Unmanned Fixed-wing Aircraft Design: A Practical Approach (John Wiley & Sons, 2017).