Hi, it's been some time,
I was busy building but now I am happy to announce that the project is operational and I am very
satisfied with it.
The front motors attachment and the stabilizer bar (20 in/lb) that ease the work of the motors.
Rear motors in the low positions
A view of the way they are positionned and the Softpot Rotary Potentiometer that I find very convenient. Also note the self made polyurethane bushings.
The steering tilt to ease boarding and is held up with gas struts. A micro-switch reports the status to the microcontroler and the seat is automatically set to a boarding position with nose partially down.
Simply lift the front of the pedals and slide it on the track to adjust in a snap. This way my grandchildren can race easily when they come home.
When not racing the monitors can be rotated and lowered easily since their support is an old air cylinder. I do not need 6 monitors in that room.
Everything has been hand made except the pedals track and most have been done twice or more.
It was a very exciting learning experience and it is not completely over yet. A 4.3" touch screen will take place as a console for the system and communicate with the Arduino Mega which runs without a PID but a much simpler formula that was very easy to create and quickly calculated. The compiled sketch is less than 12K and the delay from the Profiler is 8ms. I use Sabertooth motor drivers.
Some might ask about motor temperature when racing and my answer would be that after 2 hours the highest reading was 41.2°C
The micro-controler also monitor the air pressure of the supporting system and adjust even while racing. All I notice is a click from the solenoid valve.
A video is being edited and will be posted to YouTube asap. The link will be shown here.