Projet de simulateur de vol dynamique- Arduino-motomonster

Hello everyone,

First, excuse me for this english issue from Google.
Thank you to all those who have come here to share their projects, they were valuable sources of inspiration and mining information.
We recently patented PPL and piloting of DR400 and dr500.
We wanted to create a dynamic simulator, to prolong the pleasure mania here.

The frame is welded, made by honey.
We chose an angle of 10 ° for pitch and roll. Yaw set.

We use the following material:

1/2 transmission shaft (pitch and roll)) and a front hub (yaw) Land Rover.
4 wiper motors 12V 48W (recovery). cams 4 cm. alpha 10 °. Maximum weight 130 kg
Engine torque estimated at 9.16 NM
A big thank you to Richard for his presentations and computational assistance by email
The forces to be calculated: 130 x sin10 ° = 130x 0174 = 22.6 KGF
Lever arm: 4 / tang10 ° = 4 / 0.176 = 22.70 cm
Distance 4.53 cm
Spring force: 196 Nm-20 Nm
Maximum diameter spring for insertion into tubes available: 18.5 mm
4 springs retained C 183 220 1016 Vanel has ordered from springs (stiffness 0.391 / mm x 45.3) = 177.1 Nm
16 Rod ends type steel UNIBAL ordered from ECMU-CSR (8 of 8 and 8 of 6)
A car seat bacquet
Imagination, scrap metal, a sewing machine (welder

We will order the two engines for the "Roll" together, as opposed
We will order the two engines for the "Pitch" together, as opposed
We will order the engine for Yaw alone.
For the electronic part,
the choice fell on
- Arduino Nano
- 3 x motomonster
- 5 x 360° potentiometers.
- Simtools for communication.

We started with Arduino test the card with motomonster, two engines and with the code "sketch_nov24a" for 2 DOF proposed by RacingMat. Thanks to him.
We changed because we had bugs when the order reached -87% position: the second engine was stopped when the first went beyond the position -87%. This bug has disappeared. There remains a small anomaly, the second motor does not move beyond the position of -87%. It should not bother us, but if someone helps us find the bug, that would be great.

I put the code in ZIP format: his name simu_vol_2DOF-1 , is a zip, attached with the présentation. Then we mounted four engines on a temporary wooden support, to make our tests more easily in the living room:
We used the same code base, to make a 2DOF 4 engines.
Area 1 controls the motors 1 and 2 to the "Roll" together, as opposed (second reverse)
The axis 2 controls the motors 3 and 4 for the "Pitch" together, as opposed (the fourth conversely)
The code is called simu_vol_2DOF_roll_pitch_4mot_1sur2inv is a zip (attached with the présentation )
We also tested the operation via SimConnect and flight simulator.
Now we have some work to transfer all this on the final base, adding the 5th motor for yaw. Following the next issue.

Here in join file little video of the first testing in empty and without spring on mechanical support, and arduino code for 3 DOF 5 motors.

Thank you !

DIY suspension - nice .

We are back .

This project is definitely very time !! Well, the springs are mounted , settings and effects about right , we can now have fun on flight simulator !
We tested this morning the handle connection and rudder , made possible by hacking a ew3170 mdr.gif joystick ( photo ))
Sir told me I 'm the only girl he knew who accepts the mess caused by all this love.gif
It will then be the screen door dedicated to the dashboard , boxes for gas , brake , mixture , no variable, you name it. I need to order an additional joystick ew3170 .

Then , it will put it all to own.

We'll come back soon,

Happy New Year holidays to all,

Bénédicte

Here
The adjustable screen support