I was with----
Eeh Bah Gum Phil lad, must admit I've never seen many pistons or bearings on Flog It.
Usual objects sextants, telescopes, compasses etc, so seems everyone thinks their forebear must have been a Cap'n, where-as could have been an engineer with an unusual hobby.
Then again, not many engineers on sailing ships (==D)
----one skipper who was a brilliant 'knitter'!
He knitted the most intricate jumpers which would have, I'm sure, won many a 1st. Prize at any Women's Institute competition.
My own 'time-passer' was making cannons which I made 'fireable' by drilling the barrels with a brand-new 3/8" drill.
I drilled the touch-hole with a 1/16" drill.
The 'charge' I made from crushed-up match-heads and 'fired' the charge with a heated sewing needle.
They would 'fire' the ball-bearing but not with much 'energy' as the match-heads weren't much of a propellant.
I got the chippy to make the 'woodwork' the barrel was mounted on and, though I say it myself, they were quite good.
Stupidly I gave every one I made away! Phil.
Swing that lamp-----we're off!!