Showroom 3DOF (Traction Loss) 50:1 motors

Hi Nick, your design is interesting. That fourth motor raises the rear of the seat platform, but I can't see the hinge you added. Did you add a second ball joint? What kind of configuration did you use, or what kind of feel does it give you?

hey @X.STTONER sorry for the late reply. I will take a few up close photos for you to see, but basiclly under my feet i have 3 door hinges (so it only moves up and down) and then the big 600W motor under my seat. Having this configuration means that the motor has a LOT of work to do becuase its got my full weight pluse the weight of the seat and all that metal frame. So I have a really powerful motor controller, plus I agumented the motor with gas struts to make the upward motion less painful for it. I think combined the gas struts are about 150 lbs of force, so the motor only has to worry about the frame weight plus maybe 15 lbs (Im 165 lbs). If I were a bigger dude I would just have purchased gas struts that support higher load.

And for your question about the feel, honestly, its incredible.
I originally built this rig as a 3DOF, with pitch/roll and traction loss, but after adding this, I would say this one axis of motion is the most sastifying. I feel every undulation of the road, rally driving has never been more fun. You get a real sense of g-forces if you come in fast to a hill and the motor drops you so it mimics that feeling of being pressed into your seat as you climb. On the nordschleife or other tracks with quick elevation changes you can really enjoy it. Plus it translates really well for flight sims too.

I know my rig looks like something out of mad max haha, it ain't pretty but it's a hell of a lot of fun

@X.STTONER you can get a better idea of that motors movement here:


https://www.youtube.com/shorts/lDD3rf_7STs

and

https://www.youtube.com/shorts/gTW3DZCyodE

Hi Nick, thanks for the information and images. You cleared up my doubts. I've seen your video and it's exactly what I'm looking for, and it's inspired me to create a design similar to yours. I'm designing to adapt it to the 2DOF I have.

One question: is the rear motor a 24V? And is the motor controller a BTS7960?

Lastly, the type of shock absorber I was thinking of using was a car tailgate shock. I don't know if that would work. What type of shock absorber did you use?

Thanks for the reply, brother. Aesthetics are the least important thing; the important thing is that it puts a smile on your face like a kid with a new toy, haha.

That's awesome @X.STTONER! I look forward to seeing what you come up with!
To answer your questions:

1. that 600w motor is 12v. I stuck with all 12v on my rig. From what I read on here, it sounded like 24v was more complicated to work with

2. The motor controller I bought from AliExpress, but I found out about it from this great thread: https://www.xsimulator.net/community/threads/reasonably-priced-100a-motor-controllers.17638/
I ended up buying 3 of them abnd I replaced ALL the IBT-2 motor controllers on my rig, so now I am rocking LOTS of power haha.

3. And for the gas struts, yeash exactly, they are car tailgate struts just like you mentioned. In Canada we have a store called Princess Auto where you can get that kind of stuff really cheap. You can also get them on Amazon.

Let me know how things go and don't be afreid to reach out!
Hasta luego hermano!