Regarding screws, he thought of a way to carve threads onto bolts, though he wasn't sure if it was reliable.
Actually, he was inspired by Brother Fa.
Sometimes Brother Fa would provide him with some information.
Brother Fa was a legendary Level Nine extraordinar in the Interstellar Federation, so giving him some tips was very easy.
How to carve threads?
A knife with an angled blade. The knife is a thick steel plate, and this blade is angled on the surface and protruding.
Press the knife onto the bolt and chisel in; the blade moves completely parallel to the direction of the bolt, leaving slanted grooves.
Rotate the bolt.
The blade will be stressed, carving while moving forward. The speed of movement is determined by the width of the blade.
It can chisel out very uniform spiral lines on the bolt.
With screws, many operations can become very precise.
Some operations can become relatively precise.
