My first 2dof rig

I discovered the world of vr racing and motion simulation only 3-4 months ago after receiving a YouTube link with someone racing in vr the shutoko revival project. Wow mind blown

I build my rig from 18mm plywood.
Motors are Prius power steering units
Potentiometer are 2$ diy linear hall A49E and Neodymium magnets attached to shaft.
I upholstered the bomber seat with 2 memory foam shower mats and pool noodles

Next mods are tmc blower fan for wind and 3rd axis via Corolla power steering unit.

Great build Frantik,
I love how clean it is and also that its 99% wood
Have you already used it? Can you post a video showing the range of movement you are able to have?
Will you build any sort of monitor stand or is it built for VR?

Did you repurpose a piece of metal from something? Or you did you soldered this piece a metal from scratch?



What material are you using here (everything seems to be so perfectly align and centered, really professional):



Again, great build (love the seat detail, really nice).

Please continue posting,
L. Pinho

They're powerful, violent in crashes.
Although I’ve quickly discovered less is more in terms of motion, Im positive they could drive a much larger lever arm or much more mass. Toyota recommends 60amp fuse so i guess that puts them at 720watts peak each?

Worth mentioning is my diy pots aren’t perfect. They’re peaking out 1-4v and only paired accuracy with about 90deg sweep. So I’ve clipped them at that. Once I get a solution for 180deg I’ll need to further reduce settings.
Currently I have simtools at 12% pitch and roll and 25% surge and yaw in ac.
In CM shutoko revival it’s to violent and had to reduce 8% and 15% respectively
It works awesome so far in asserto corsa but I suspect utilizing full stroke will be advantageous in flightsim. I haven’t yet tried flightsim though.

I’m only intending to use with vr so won’t need to mount monitor.
Yes they’re repurposed UV joints, Depending on how the wrecker removed from car you’ll get 1-2 uv joints with motor assembly.
Here’s the un modified Corolla example that I’m going to use for 3rd axis


And after mod


The modified uv are perfect for lever because they’re spline fit on motor shaft. The other uv joint was used as seat pivot with flanges welded on.

The flange material is fibreglass. I’m a boat builder by trade. We had off cuts around. Otherwise I would have used aluminium flange I guess.

L. Pinho[/QUOTE]

Diy 2dof motion sim rig with Prius power steering motors. - YouTube

Diy 2dof motion sim rig with Prius power steering motors. - YouTube[/QUOTE]

Great, very smooth, and when the crash happens your body really looks like you went against something.

I have to search for those motors in Portugal or a site in Europe.

Is the front of the rig tilted up or is it's just the video angle?

Here you have a set of magnets to read the position of the motor axis with a hall sensor. Can I ask you why you didn't use a more traditional potentiometer? You saw a lot of advantages of using the hall sensor?



Men, I envy your skills
Is the rig "model" created by you?

Thanks for the inspiration.

Most of the parts I chose were based on cost and local availability. The motors were available from local wrecker and @ 1/3 grab pot motor price. And the diy hall pots were 1/50 the price of traditional 180deg hall pots. There’s no advantage on the diy hall pots apart from the price. I think the poles have magnetic interference directly contact with shaft. I should have attached them to plastic posts glued to shaft perhaps? But they still work ok with smaller angular range. In my defence there weren’t any traditional hall pots available in my country when I needed them. I did ordered some from aliexpress but delivery took so long they only arrived yesterday. I’ve since also discovered and ordered another sensor called AS5600 chip. This looks better. AS5600 Is degree programable contactless rotary encoder that can output analog 0-5v
At 2$ each I ordered a dozen and excited to try them.


Yes the rig I designed was based of a static one I built first out of mdf . The first one was rough and ready with the intention to adjust dimensions until it felt right.

I then built the current one based of first dimensions with minimalist approach on material so I could accomplish with just one sheet of ply.
I guess it looks like it’s tilted up because the angle of the two longitudinal bearers. But that’s flat in it’s original design position. Steering wheel platform is level for example at the position. And it feels very comfortable at the resting angle.

AS5600 seems great, 30 years ago, I did my 1st wheel and pedals because I could not afford to buy them, and I would have to use normal potentiometer for the wheel and after some weeks of usage they would die out and I would have to buy some again or keep some in storage, your way is a much cleaner way to do the same.

I looked up examples of usage for the AS5600 and it seems that the easiest way for your build would be to use diametrically magnetized magnet.

Instead of the standard magnets (the poles are at the top and bottom)



You will have this (poles are right and left):



Thanks for teaching new things.

Portugal is not a great place to buy 2nd hand stuff, they sell it cheaper but not cheap enough

The AS5600 I bought on aliexpress come complete with the diametrically neyodium magnets. I could just attach them to the centers/ends of the shaft and space the chip 2mm away.

I @Frantik, all my doubts were moved to another post
I was taking over your build, sorry.
If you are able to help me, please let me know at https://www.xsimulator.net/community/threads/trying-to-build-a-2-dof-rig.17601/.

Thanks and hope to see your rig grow

Nice, this gives me good idea for use of this motors. What type did you use? Maybe a part number of type of Prius?

Hi Jiggles.
I think you’re free to use any power steering that’s not brushless.
I think the ones I used were 2011 Prius part number ZVW30R. That’s from google search from the supplier I originally bought off, I noticed the price has doubled since unfortunately.

check out this website for suitable alternatives
https://www.therangerstation.com/tech/toyota-electric-power-steering-eps-conversion/?amp=1
this site is dedicated to suitable units for use as aftermarket power steering retrofit to old project cars. I think all recommended would work for our purpose too.

apparently brushed motor can work too but we’d need a different driver module which complicates things. I’ve got a brushed version power steering unit too that I’m considering to build ffb steering wheel with. Got all the parts but not the time