When we use a different gear ratio than 1:1 (like 1:2 or 1:3) how reliable is the driving or turning when it comes to accuracy?
Does a command like Move forward by 43 inches or Turn right by 45 degrees actually work accurately?
If you know the gear ratio you can specify it in the drivetrain creation.
The most important thing is you get the size of the wheel right and the gear ratio or the distance will be off.
Other stuff is more for turning.
Ignore the red box it’s from a drivetrain creation tutorial.
We use omniwheels. arent they the regular 200mm wheel size?
Also in your screenshot what is that about Gear Cartridge? we dont see that when we configure our drivetrain
Could you send a picture of what you see when you try to create a drivetrain?
In my experience the drivetrain control blocks are generally accurate as long as you have the right values for wheel circumference and gear ratio, but can require tuning. Things that my teams have found to be factors:
- Drive & Turn Velocity. The higher the velocity you set, the less accurate things will be. We tend to see pretty consistent results with 60-70% drive and 50% turn.
- Wheels used. A robot with 4 omni-wheels is going to be more susceptible to sliding in ways that can introduce large errors to a program. Using 2 traction wheels and 2 omni wheels seems to find a pretty good balance, but you definitely want to test different configurations.
Yes, the OmniWheels are 200mm for travel. The screenshot @Mavric posted is from V5 VEXcode, not IQ VEXcode, and those motors are very different. Your IQ config screen will look more like this:
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Sorry, I forgot IQ would be a little different without the gearbox.