Martin Eastburn wrote:

Drafting tables are naturals.
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Spent a lot of hours slinging lead on a table built with a 2"
thin wall pipe frame, some angle iron and a 5' x 10' sheet
of plywood.

Typical layout drawing was about 20-30 ft long so you had the leading
and trailing edges often rolled up when working the middle of the
drawing.

This was for 1/4 size layout drawings for foundry automation systems
with an occasional sheet steel pickling line thrown in to keep busy.

My guess is that none of those customers are even in business
any more.

This was basic rust-belt business.

Lew