Preparing the published article.
Repeatability vs Accuracy
The two words are often used interchangeably and mean different things.
The difference
| Term | Meaning |
|---|---|
| Repeatability | How closely the robot returns to the same point |
| Accuracy | How close the achieved position is to the commanded position |
Why it matters
- High repeatability suits teaching a path and replaying it.
- High accuracy matters for offline programming and coordinate conversion.
- The two can differ a great deal, so choose the figure the task actually needs.
Test conditions such as speed, load and temperature change the result. Compare like with like.