Showroom 2dof simulator project

Hello everyone,
After lots reading and watching everithing about simulator i start the project 2dof arduino+moto monster shield.

All parts for project:










i start with electronical conennction with this wiring








test was good soo made box for everything




electronic is ready soo build seat

Awesome start so far, looks really good! Excited to see the end result.

I have problem with motors now i dont knows what could by wrong i change lots of potenciometers and read forum and nobody have this problem maybe somebody can help or any idea?

I have problem with motors i have video end of my post https://www.xsimulator.net/community/threads/2dof-simulator-project.12180/#post-158836
any help?

the motor doing this all the time if i driving straight ahead left side and right side its like on the video for arduino i use code from RacingMat https://www.xsimulator.net/community/threads/2dof-arduino-simulator-with-rear-wipers.4897/

yes everything works good only this is problem engine doit this a make picture now and put here and thank you for answer

here is picture but engine doit this without simtools too if i just connect and seat on the sim that engine doit this maybe i am to heavy for that

i trying doit without balance but is nothing change maybe i have somewhere mistake ....

i change this in the code becouse motor is diferent way

and after reading forum i try this but without any change

and power supply should by strong enough 12v 50A

Thank you for answer, balance is ok if is nobody on the sim if i seat down on the sim moving litle by left,right,forward,backward and motor doit sound like on the video if i disconnect levers everhing is ok only problem is if i seat down, motor dont holding balance and dont holding position in the middle

And i put springs there and is better but if i seat down motor dont keep the balance like on the video

without me sim working perfect

i will try something thank you for help