The most reliable and repeatable way to move from point to point is to use
mechanics wherever you can. Wall following is a great example. This year
wall following is difficult, but it is possible.

Also, try looking for things on the mission model itself that lends itself
to helping the robot. We like to make funnels for our attachments to help
align the robot to a mission model. See the high-resolution photograph I
have a attached :)

Remember, the most reliable solution will almost always be a mechanical
solution. Look for the very best possible mechanical solution and then
start programming.

On Sat, Nov 9, 2019 at 10:13 PM Leyla Nazhand-Ali <[log in to unmask]> wrote:

> Good evening,
>
> As a rookie coach, I have a general question for the community: what is
> the most reliable and repeatable way to go from point A to point B using
> Ev3 (FLL robot)?
>
> I know there is a method to use actual motor rotation counts. I also know
> we can use a gyro sensor. Any advantages or disadvantages for each of these
> methods?
>
> We have two related problems: 1) our navigation program doesn’t behave
> similarly a few days later or on a different table. 2) a backup robot we
> built doesn’t run the same programs in a similar way to our original robot
> even on the same table and almost the same time. In other words, our
> solutions are not robust.
>
> I know this is a very broad question that probably touches upon various
> topics. However, I appreciate if the other coaches point me to good
> resources or share their wisdom with me.
>
> Thanks,
> Leyla
>
> --
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