Showroom My 2DOF motion add-on for Playseat Evolution

Hi all, this is my first thread in this forum. I have been here since 2016 but most of the time just reading other people's posts & answering 1 or 2 questions. Today I want to show you my newly built 2DOF motion add-on that I fit into my Playseat Evolution.

These are the motors that I am using from AliExpress. Model number GW70105. They are rated 50w power output at the most efficient load. 50RPM. Electrical input power is 24v x 6.5A = 156W at rated power. 8Nm rated torque & can go more than 20Nm peak torque. At the back of the motors you can see a 3D printed pot casing that I print.


This is the control box attached together to the power supply box as a single unit. Wires to the motors are not of same length. This is to prevent incorrect connection during assembly.

These are all the frames, motor mounting, motor arm & u-joint holder that I made. Pardon my welding skill.



The pot casing. The pot itself will be held by a flexible spiral structure(top left in the picture) so it can move sideways because of the misalignment between motor & pot. The coupler(not in the picture) is just a 14mm hexagon nut(motor side) to 6mm round hole(pot side) 3D printed plastic.



Inside the control box.


Assembled..




Testing with Project Cars 2.


I like the movement of the seat. It is strong enough to move me around(sometime can be quite violent) but at the same time doesn't feel too mechanical. In Dirt Rally 2 I have to add smoothing to the roll & pitch axis because I worry the motors will get damaged.

At first the motors like to make some noise when they are stationary. I checked with SMC3 utility and found out that the pot signal was noisy. Then I add filtering code to the SMC3 to smooth out the input signal. Now they are very quite when not moving.

Thanks for you time reading this post. I'm not sure if you can see the pictures. I just copy the url from my google photos.

Nice project, it’s a pity that there is a limit on the height of the steering wheel, so not everyone will be comfortable using such a mover.

You can slightly move the U-joint, this will achieve a more comfortable fit.

Thanks noorbeast. The reason I use playseat is because of its compact design. I like that it can be splitted into 2 parts and easy for me to carry around my house. I play mostly in my bedroom where I set up my vr. But sometime I will play it in the living room with my kids.

I'm sorry but dont understand what do you mean by moving the u joint. Do you mean to lower the seat or moving it backward?

I agree with the steering wheel height. To increase the height I have to push away the pedals. Now its at the max distance that my feet can still reach the pedals. My plans are to either extend the vertical column upward by some steel tubing or just use some padding under the steering wheel. Any other ideas are welcomed.

Radioproffi, I can see now in your picture that the u joint is lowered. But I think it will also lower the seat and will limit the rotation angle.

playseat was comfy when i was trying one at the microcenter store... good luck on your build!

Compact design, the effect is great! This design is a very good upgrade for your seat! Praise you!

Very cool job! You can't even say that it is handmade. I would like to see the principle of attaching the cardan to the base, it is a pity that it is difficult to see in the photo.