Re:German car that was super-aerodynamic but impractical
by thetwentyone on Wednesday November 24, 2021 @12:03AM
(#29327070)
United Launch Alliance still makes some parts of their rocket by hand like this: https://youtu.be/o0fG_lnVhHw (at 25:15)
Sometimes they had wooden shape templates... roll the part between the wheels until it seems ok, put it on the template, see where it's not quite right, back on the rollers, back on the template, back on the rollers, until the part was accurate enough.