Question A beginner dreams of 2DOF

Our scripts might be different. It you bridge pin 8 to ground it should change the baud rate without editing code.

Tell me where to find another version of SimTools? All my searches have led only here

Thanks a lot for the tip! I tried to install SimTools v2.5. The axles are aligned. Even Output Testing stopped shaking motors. They move smoothly to the end.

The next step is to build the body of the simulator.
I took the design from this Brazilian friend as a basis, only with the introduction of my own small changes.
The motors will be located under the seat back.

I am planning on using a converted computer seat. Later I will make a homemade racing seat out of plywood. There are drawings.

Hello! I'm not lost, it's just that at this stage the process went slower.

What was done: bought an old office chair. Disassembled, thoroughly cleaned and sewed new upholstery. I like it.

Prepared shaped tubes and marked welding points.

But welding turned out to be more difficult. Such work is expensive for welders. Therefore, I decided to add money and buy myself a new welding machine. I have long dreamed of such a device. Just a great excuse.

Body parts welded

I'm going to the final line. It remains to tidy up the wiring and place the boards in the box.

Friends, advice is needed. What cable to connect to a PC? On my Arduino Uno there is a micro USB connector. This connection looks unreliable and not solid. Maybe use some kind of adapter? How did you do it?

Done! Please welcome!

I just use nano (using ch340), everything is normal, no problem.

The next step is to add vibrodynamics to the device. Without the sensation of vibrations from a running motor, it's somehow boring. I've done it before in my regular seat. This should add more experience.

Added a little vibration to the device. This is not a bass shaker, but it does provide a certain experience.

To connect, I built in a 12 V jack for connecting a homemade amplifier with a low-pass filter.

The amplifier itself was attached with ordinary clamps to the underside of the seat

And the vibro speaker fits perfectly between the plywood sheets. Right under the buttocks.
The result is a spy stealth installation.
It would be nice to install the same in the back. But so far I have only one speaker.

Hi, I need help with the Axis Assignments settings.
I figured out the settings for the Pitch, Roll, Surge axes. This works correctly. But I have problems with Sway.

When turning left, the sim tilts to the right (left motor up), but when turning right, the sim again tilts to the right (right motor down). This is with these settings:

If you move the orange button to Axis1a, the motors change direction, but the sim's behavior remains the same.

If you turn on the orange buttons on Axis1a and Axis2a together, then when turning left, the motors move one up, the other down (seat moves to the right). And when you turn right, there is no movement at all. Disable all orange buttons, movement is mirrored.


Could this be because in my sim design one of the wiper motors is upside down?
If the motors were the same, then the first setting would work correctly.

In SMC3Utils in Manual mode, when you move the slider up, one motor raises the lever up and the other lowers it down.
Is it possible to turn the engine over programmatically, so as not to violate the design of the sim?
I have seen that many people position their wiper motors this way, but no one has mentioned such a problem. Maybe I'm doing something wrong?

Thanks for the tip. This gave the concept of the DIR function for Sway and Roll. But the Sway tests were run with Roll disabled and everything else. Only one Sway.

Hi all! I'm still with you and work with the car simulator continues. However, due to the war in our Ukraine with Russian occupiers, all processes have been suspended. But life goes on!

What has been done this year:
Once the left motor burned out and was replaced. For some reason, the left one heats up more than the right one.
The engines received passive cooling. A radiator was machined from an aluminum blank.

The radiator is fixed only with thermal paste.
I plan to add coolers for active cooling.

Installed a massive homemade bass shaker. Power at 50-60 watts. Shakes great!

For him, an amplifier was made on the XH-M544 TPA3116 board mono 1 x 150 W. And one more amplifier on TPA3118 PBTL 1X60 W for a small Subwoofer


XH-M544 TPA3116 mono 1 x 150 W

TPA3118 PBTL mono 1 x 60 W

Subwoofer filter with +12V power (Auto) on TL072 (TL082).

For the best performance of the Bass Shaker, the chair is mounted on rubber stands. Now the vibrations do not go to the floor.


To be continued