So I thought with the popularity of X-Drives this season. (And it being my favorite drive :wink:) I’d release this fairly simple Desmos graph that calculates the exact percentage to spin each wheel at in order to move in a certain direction. (Measured in radians) Each colored line shows which direc…

Hi! I’m glad somebody found this useful and decided to use it. I haven’t looked into the issue yet but I will. I just don’t check this forum that often anymore and I haven’t touched this project for a handful of months. I just thought you might like to know that I am looking into it. Edit: A few pr…

One thing I should add: This was mostly intended for autonomous purposes. I believe this along with odometry could make a killer autonomous. It’s pretty easy to make a joystick controlled drive without all the fancy trigonometry. [image] Jackson: just going to say thank you. You’re welcome. …

Update: I noticed a problem with the visuals. The center line was not calculating its length correctly. here’s the new link. (Desmos creates a new url every time you save your project.)

Ok, I absolutely promise that this might be the last update. I realized that the calculations for slight turns, while looking accurate, were completely wrong. here’s the new link again. Sorry for spamming my own thread. [image] X-drive direction control X-drive direction control …

This is pretty neat. I’m curious though, where were the calculations derived from? I would imagine you could also combine this with a turn PID because the chassis has two degrees of freedom. So, theoretically, you could also change the orientation of the chassis while it’s moving in a given directio…

[image] Joey_24K: Ok, I absolutely promise that this might be the last update. You could also just edit the original post

[image] mvas: So, theoretically, you could also change the orientation of the chassis while it’s moving in a given direction Yes. Teams have done this for autonomous before

The calculations were basically derived from the fact that the movement along one diagonal was completely dependent on the movement of two opposite wheels, and independent of the other two, and vice-versa for the other diagonal axis. Because of this, Finding the motor value for just moving with no t…

[image] Joey_24K: The calculations were basically derived from the fact that the movement along one diagonal was completely dependent on the movement of two opposite wheels, and independent of the other two, and vice-versa for the other diagonal axis. That makes a lot of sense with the visual…

Ok, here we go. BTW, never mind what I said about being done for tonight. I have a terrible sleep schedule. I’ll try to answer your questions in order. [image] mvas: I’d imagine this would be somewhat inefficient for longer distances because the total speed of the drive itself depends on the a…

X-Drive directional drive control code release (kind of)

VEX V5 General Discussion

mvas June 18, 2020, 1:34am 7

You could also just edit the original post

Joystick usage