Drivetrain questions for VEXcode IQ Blocks

VEX IQ General Discussion IQ Technical Discussion
1

Hi, the students that I am mentoring are using VEXcode IQ Blocks and have set up a Drivetrain for their robot. This is our first year with Vex IQ and have not used any other programming tools like robotc. I have a couple questions:

  1. I see the “set drive velocity” and “set turn velocity” blocks that take a percentage value or an rpm. What are the default values if these blocks are not used?

  2. In general, is there documentation that explains what all of the block commands do? For example, I can kind of guess what “set drive timeout” should do, but it would be great if there was more specific information.

Thanks!

2

Someone told me the default was 50%, not sure if that’s true. However, for my son’s team they just put in 40% at first and they dialed it down as they went along. I believe their drive velocity is at 20something and their turn velocity is below 20.

I saw that there was a help button, the question mark (?), on the right side, and you just click on a block and tells you more information.

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3

Hi @SP_BigBang Here is a tutorial video on using the Help

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4

default is 50 rpm, which on IQ is the same as 50%.

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5

Thanks everyone for the help! I can’t believe that I missed that help button…

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6

Why wouldn’t 50% be 60rpm given that max free speed is 120rpm?

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7

yea, you are correct.
default for setVelocity is 50 rpm.
50% would be ~ 60rpm.
I use V5 a lot more than IQ, always have in my head these are 100rpm motors when they actually go higher than that.

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