Question Questions from newbie building his first 3dof sim

Hello,

I recently discovered this forum and diy motion Sims.

I've been playing ac on occulus quest 2 and t300rs clipped onto a desk and I want something better. However don't want to fork out the money for a dof p3.

So after discovering this forum and watch the videos on you tube on diy rigs I decided to dive in head first. I bought everything I needed and found some recycled metal and parts.

3x 120rpm 50:1 motors
3x ibt-2
3x 10ohm potentiometers
1x arduino r3
12v 50a pwr supply
1x universal joint

I do have a few questions that confuse me though and hope someone here can clear them up.

Following the wiring diagram from smc3 the arduino to the 3x ibt-2s which motor is for left,right,slip from the point of view of sitting in the seat. Motor 1 is left? Motor 2 right? Motor 3 slip?

I see some builds with the left and right motors in the front, some builds have them behind the seat. Is there a difference?

Some builds have the Motor arms connecting to the highest points of the rig, by the steering or top of the seat back, some just by the pedals or bottom of the seat back. It's there a difference?

This is what I have so far.

Hello, regarding your first question, you assign their movements to the motors in Simtools, I have the motors on the back of the seat, anchored at the bottom to the structure, they are windshield wiper motors and they work perfectly, the I have cooling with 120mm PC fans and I can spend hours and hours, I hope I have helped you, greetings from Spain

Can you link me a photo?

I hope they resolve your doubts, these are the photos of when I started, where the engines are well appreciated, if you need anything else, do not hesitate to ask me, greetings

Interesting. I didn't know you can use a cv joint instead of a u joint.

I have since changed the location of the motors to behind the seat attaching to the top of the seat. Ive also replaced the motors with something stronger but with this new motor shape/design I'm having issues trying to figure our the best way to mount the potentiometer.

Could you post a photo of your motors where the shaft can be seen? Tomorrow I will upload a photo that looks like I have them.

Finally got around to mocking up something to mount the pot.

Hello again, I saw that you are going to put it with gears, I have it put directly with a 180° one, my motor has a thread inside the shaft, by the way is the motor 300 rpm?

This motor is 350rpm. Previously tried mounting pots with a tube but it was very unreliable. Ended up mounting with gt2 belts. I felt that there alot of play so decided to try the gear approach this time. 3dprinter and fusion360 really comes in handy.