Description: The Finch’s movements are not repeatable – a timed turn that moved 90 degrees might move 110 degrees the next time.
Cause: The Finch’s tether makes repeatable movements difficult – turns cause the tether to twist, causing a spring force that tends to resist continued turning in the same direction. The tether may also drag on the Finch, causing it to turn slightly when it should move straight. You can minimize the effect of the tether by:
Driving Finch on smooth flooring – carpeting will tend to slow down the Finch.
- Turn at slow speeds.
- Use sensors to help the Finch move more accurately by using cues in its environment. For example, the Finch can follow a light source or a wall.