How inputs per second impact the smoothness

Hallo

I am about to pull the trigger on two possible motion rigs. One with 150 mm actuators with 250 inputs per second or one with 100 mm actuators with 150 inputs per second. As I am more humanist than engineer by trade I would like to understand what is the difference between 150 and 250 inputs per second from the perspective of iRacing avid user.

It seems to me that the difference in inputs may impact the smoothness but will it be noticeable? If so in what way?

Tom

have a look here mate
100mm-or-150mm-scn5-t2387.html

I understand the difference as far as the travel - 100 mm vs 150. What I mean is the difference in inputs - 150 vs 250 per second.

travel in time it takes may impact the motion, but that is where a clever profile can make a big difference.
Granted most of my experience is with wipers and faster big worm gear motors, but apart from hardware restrictions in actually reacting to the , a good written profile can still fool you.
And yes, a faster motor will provide faster motion, but if the profile is right, you are on your way.
You can have a controller doing 1000 calculations per second, or even 150-250 per second but if the hardware doesnt meet that, its difficult to actually answer this unless you build a sim and go profile writing.

As I am going to buy ready made 2DOF with 150 i/sec or 3DOF with 250 i/sec I am not sure how I can change the software provided. So I will have to stick to what I got.

But correct me if I am wrong.

Tom

You could have a controller of 500i/sec, but if your game send at 30i/sec... what else?

With X-Sim, you could insert a smoothness filter in the math section.



If you want a 2DOF or 3DOF visit our website.

Patrick

Hi Tom
rFactor outputs the telemetry data in sync with the video frames. It has a target frame refresh rate of 90/sec.
So I guess 150/sec or 250/sec doesn't really matter.

Thank you for your help! Now I understand more which makes somethings easier!

Tom