<p>I have an EV3 Home edition. I have made a tribot. It has two main motors for the wheels and a caster in the back. To complete a full turn in place I need to set the rotations to 2.32 or 835 degrees.</p>

<p><a href="https://i.sstatic.net/RZUFk.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/RZUFk.png" alt="enter image description here"></a></p>

<p>Does this seem normal to you? I am using <em>The Art of Lego Mindstorms EV3 Programming.</em> The author gets his tribot to turn one full turn in place by setting the degrees to 425. I am just curious about why my setting is almost double. We are both using home editions.</p>

CC BY-SA 4.0
2019-01-04T02:36:16.897Z
Actually I have answered my own question.  425 is for a 180 degree turn.  Doh!
john5023
CC BY-SA 4.0
2019-01-04T03:27:10.120Z
Glad you figured it out yourself! But just for future reference, it's actually very easy to calculate how many wheel degrees you need for any robot rotation. See [this post here](https://bricks.stackexchange.com/a/10482/6720).
MindS1
CC BY-SA 4.0
2020-05-02T14:47:44.600Z
Also, the distance between the two driving wheels and the speed used can affect how many degrees are required for turning. For example, you may think that turning 90° will make your robot make a perfect turn to the right. That's wrong! It really depends on the design of the robot and the amount of speed used!
mindstormsboi
<ev3>
How many rotations or degrees do I need to turn my robot?
john5023
# How many rotations or degrees do I need to turn my robot?

(Asked by: username_0 on 2019-01-04)

I have an EV3 Home edition. I have made a tribot. It has two main motors for the wheels and a caster in the back. To complete a full turn in place I need to set the rotations to 2.32 or 835 degrees.

[![enter image description here](https://i.sstatic.net/RZUFk.png)](https://i.sstatic.net/RZUFk.png)

Does this seem normal to you? I am using *The Art of Lego Mindstorms EV3 Programming.* The author gets his tribot to turn one full turn in place by setting the degrees to 425. I am just curious about why my setting is almost double. We are both using home editions.

**Tags:** ev3

> **Comments:**
> **username_0**: Actually I have answered my own question.  425 is for a 180 degree turn.  Doh!  
> **username_1**: Glad you figured it out yourself! But just for future reference, it's actually very easy to calculate how many wheel degrees you need for any robot rotation. See [this post here](https://bricks.stackexchange.com/a/10482/6720).  
> **username_2**: Also, the distance between the two driving wheels and the speed used can affect how many degrees are required for turning. For example, you may think that turning 90° will make your robot make a perfect turn to the right. That's wrong! It really depends on the design of the robot and the amount of speed used!  

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## 0 answers

