If other people working the same craft have managed to achieve precision, it’s very unlikely to be a biological limit, right? The resolution of human fine motor skills is really high.
You didn’t mention what the craft was or the nature of the sloppiness, but have you considered using simple tools to augment technical skills? Perhaps a magnifying glass, rulers. pieces of string/clay or other suitably shaped objects to guide the hand, etc?
If other people working the same craft have managed to achieve precision, it’s very unlikely to be a biological limit, right? The resolution of human fine motor skills is really high.
You didn’t mention what the craft was or the nature of the sloppiness, but have you considered using simple tools to augment technical skills? Perhaps a magnifying glass, rulers. pieces of string/clay or other suitably shaped objects to guide the hand, etc?