According to Ma Lin, there is no good way to improve the precision of equipment nowadays, except by relying on one's own manual skills.
One must act like a painter, who can draw straight lines and circles by hand, and depict very complex mechanical devices in a perspective manner.
He needs to achieve something similar.
He should be able to grind steel plates to be flat, straight, round, and standard with his hands, then use this skill to assemble a few devices, using the devices to help process metal parts, but the accuracy of the devices is about the same as by hand.
For instance, making a gun chamber requires quite high precision.
He works tirelessly in the workshop every day for such tasks.
He knows that during the Industrial Revolution on Bluestar, various devices were invented for precise mechanical processing.
He is unsure whether he needs to invent them himself.
He has no idea about their principles.
His cognitive ability seems somewhat lacking.
