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F1 Motion Simulator // 5th monitor

Discussion in 'DIY Motion Simulator Projects' started by foppaul, Sep 28, 2017.

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foppaul Member

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2DOF, DC motor, Arduino
Sneak preview of the last post:

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A few weeks ago I started to build a Simulator. It's just a trial so I dont want to spend to much. That is why is started a thread here so I could try the software for free. I will keep updating this thread. If anyone has any questions I will try to help, but my English isn't very well.

Paul
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Last edited: Mar 9, 2020

foppaul, Sep 28, 2017

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Limongi Member

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That's a very nice bit of aluminum fabrication, you must have a great combination of low weight and stiffness. Did you weigh the upper frame ?
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Limongi, Sep 28, 2017

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noorbeast VR Tassie Devil Staff Member Moderator Race Director

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Nice work, I will look forward to following your updates.

There is an eligibility criteria for a free license, which includes length of membership and progressing your build thread: https://www.xsimulator.net/community/faq/request-a-free-diy-simtools-2-0-license.262/

That looks to be a CV joint used for the pivot, if it allows lateral rotation then you will need to add a panhard style rod between the top and bottom frame to prevent torsional twist

With wiper motors you need to ensure they are ground isolated: https://www.xsimulator.net/community/faq/wiper-motor-mandatory-ground-isolation.25/
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noorbeast, Sep 29, 2017

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Paddy1970 New Member

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Some fantastic fabrication skills on display there, very nice work.
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Paddy1970, Sep 29, 2017

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foppaul Member

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@Limongi No sorry I didn't weigh the frame. But i need to take it appart before painting so I will weigh it then.

@noorbeast Homokinetic joint don't allow lateral rotations so I should be fine. Thanks for the advise!

Yesterday I mounted the pots and finished up the wiring. Should be ready to test the motion in a few days. Just hoping the motor's are strong enough. I used the point of mass for my cv joint, but when the seat turn forward the point of mass moves so the motors have to come up with a lot of force.

I will post some photo's later.

foppaul, Oct 2, 2017

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creazyrider Active Member

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The upper frame looks very nice ! Did you weld it with a TIG ?
Why did you double the bottom frame ? to limit torsion ?
Nice work.
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creazyrider, Oct 2, 2017

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mariano68 Active Member

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Your upper frame looks great! Superb craftmanship
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mariano68, Oct 3, 2017

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foppaul Member

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Thanks guys!

@creazyrider I've seen some simulators who lift their own feet while moving the seat from left te right. To prevent this I decided to make the frame stiff. Another plus side is that I can use the space between the square tubing frames to mount all the electronics.

foppaul, Oct 4, 2017

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foppaul Member

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Quick update, mounted the pots to test the system.

foppaul, Oct 4, 2017

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mariano68 Active Member

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I got the same connectors yesterday, for 7 contacts each.

mariano68, Oct 4, 2017

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foppaul Member

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mariano68 said: ↑

I got the same connectors yesterday, for 7 contacts each.
Click to expand...

I've also got some connectors with 8 pins (4 pins on the ones used in the picture). But I decided to use a different connector for each component. This makes is easier to changes some parts easily when necessary (update or a broken part).

foppaul, Oct 5, 2017

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foppaul Member

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Hi Guys,

Just a short update, i'm in the middle of my school exams so unfortunately I won't be making any progrogress soon. Just recieved the diy license, thanks a lot!! And started figuring it out. Also mounted everything on the simulator and started testing with just Arduino software and codelines to make the motors move to check the connections and polarity. Thinking about buys two more montiors when everything works haha. I'll post some pictures of the testing later.
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foppaul, Oct 17, 2017

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Limongi Member

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Looks so good, I'm excited to see the results in motion. Aluminum really takes it up a notch in aesthetics. I assume by position you're going for an open wheel feel?
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Limongi, Oct 17, 2017

#13
foppaul Member

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@Limongi Yes, that is correct!

Just 3D printed some parts. Those prints are for a RGB RPM bar. The larger bar is used to mount the 8-bit ledbars and the smaller box is used to protect an Arduino Nano. I need to brush the plexiglass to make it a bit more blurred as an experiment. If it doesn't look good I will cut a clear one.
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foppaul, Oct 24, 2017

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Muscled_Dog New Member

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Whoahh! Really cool! Congratz!
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Muscled_Dog, Oct 24, 2017

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SBDESIGN some knowledge

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looking good!
good job!
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SBDESIGN, Oct 24, 2017

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foppaul Member

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Connected the circuits, installed the software and this is the result:

I used Simhub to sent a signal to the Arduino Nano
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foppaul, Oct 27, 2017

#17
foppaul Member

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First some pictures:

Finished the build a few days ago and started testing the setup. But i've runned into some issues... when i connect the arduino to my notebook and send some lines of code by the arduino serial monitor the seat starts to move. So I was really happy. I've connected everything right haha. But, i can't figure out how to setup simtools. I've used all available guides and it just won't move.

When I start the simulation by starting to test outputs the motors turn to their home point (the middle). But when I move those bars with roll and pitch, nothing happens.

Can anyone help me with this problem? I'll provide every sreenshot needed, but I can't right now because i'm posting this from school haha.

Thanks a lot, Paul.
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foppaul, Nov 13, 2017

#18
noorbeast VR Tassie Devil Staff Member Moderator Race Director

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Hard to take anything but a stab in the dark, as you have not said what code you are running. If it is SMC3 then the Interface Settings for SimTools 2 should be like this:

[A<Axis1a>][B<Axis2a>]

Set for 10bit binary output

Baud rate 500000 , N , 8 , 1 (10ms delay)

noorbeast, Nov 13, 2017

#19
foppaul Member

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Sorry for the late reaction..

I am indeed running SMC3 tested the output with the untility tool and it works fine. I'll try your settings.

foppaul, Nov 19, 2017

#20

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