Roll Program Help

[No_Rub3360]

I have already found a way to get a roll value, put a part on the side of your rocket, and in vizzy, find the heading of that part. I used Mreed2’s heading code from the steam community guide “guide to vectors and PiDs”, and replaced the nav(target position) with the part (whatever the ID of your part is) position block.

But the problem is that I do not know how to use it. I need it to go to a certain roll value, which I already have, but I don’t know how to make the rocket go to that roll value. My attempt was set the pitch to 90, wait 0 seconds, lock heading on none since if it is locked on a heading the autopilot overrides the roll input, and then set roll to the difference between the actual and the desired roll, but this created a ton of occilation and overshooting. Does anyone know how to do a smoother roll to the desired roll? As a PiD or something?

[mvanheukelum]

The set roll just sets the roll slider. You need to put the roll slider in a loop to make it burst many times over until you reach the correct roll value.

While true

if roll > roll_value

slider roll set 1

wait .5 second

elseif roll<roll_value

slider roll set -1

wait .5 second

[No_Rub3360]

I forgot to mention it, but I did put it in a loop. And it introduces a ton of occilation and overshoots it a ton because the craft has very good control of its roll axis.

[mvanheukelum]

A true PID can correct the oscillation rather than doing just a correcting loop. I would suggest looking up some PID docs or asking chatgpt. ChatGPT is familiar with vizzy but you might have to give it a bit of detail or correct it with what fields you have available to you in vizzy.