How to test repeatability and absolute accuracy during robot acceptance?
• Test repeatability with a laser tracker over 30 round trips to one target, take max deviation.
• Measure absolute accuracy by comparing commanded and actual poses via ballbar or laser tracker.
• Accept per ISO 9283; repeatability must be ≤ the datasheet value.
• Log each axis homing offset; re-calibrate encoders on site if out of tolerance.
• Measure absolute accuracy by comparing commanded and actual poses via ballbar or laser tracker.
• Accept per ISO 9283; repeatability must be ≤ the datasheet value.
• Log each axis homing offset; re-calibrate encoders on site if out of tolerance.