Evan Gatehouse wrote:

Steve Lusardi wrote:

No computer will ever replace this task,

even big ship yards still must bulletproof the table of offsets for
CNC cutting machines to be accurate.
Steve


Steve,

Maybe a decade ago this was true, but in the real world of today's
shipyard, the cut files are all done on computer, the plate is burned,
and erection starts the next week. The loftsman is a dying breed.

We (commercial naval architects) seldom provide tables of offsets any
more; just send 'em an IGES file of the 3D hull surface, or we produce
all the steel parts in house. No lofting required.

Evan Gatehouse


While the drawings look small, they are drawn in full scale.

Actually, sometimes much larger than full scale.
When zooming in to locate a point between a waterline and section
I may be as much as 100 x magnification.
Trying for .01 inch resolution.

Can't do that on the floor.

But that's the way it's done these days - and why the parts fit
so well (hopefully!).

Richard