On Sun, 23 Mar 2014 21:13:56 -0000, "Andrew Mawson"
I use 'used' insulin syringes when mixing minute quantities of two-pack paint
for touching up mistakes. occasionally they get used for such things as
injecting thin oil into difficult to access areas and injecting nitric acid
into holes when dissolving unwanted sheared off steel from aluminium holes.
A (big??) problem with the modern disposable 0.3ml and 1ml disposable syringes
is that the 30SWG needles are too fine to pass anything much thicker than
water and the lubricant on the pistons is dissolved by many organic solvents,
to either the fluid won't pass or the pistons seize.
One solution for things like 2-pack paint and oil is to chop the needle off
with a wood chisel, leaving a somewhat larger hole.
I've still got one Rocket 1ml and one Everett 2ml glass syringe from the days
when we kept them in industrial spirit and boiled them up when we remembered,
but I don't want to spoil them!
As for disposing of the sharps, it's a ruddy nuisance. The doctors and
hospitals don't really want them and the council expects you to fill up a
sharps box once a week. I wait until I've got half a gallon, then melt them
down into a solid block in old paint, soup or bean tins. I reckon they're
probably fairly innocuous at that point.
Well, I've now 10 of them, and altho' only 2mL each, as a water pistol, they
shoot 20 feet, so I was musing at the possibility of a water-based Gatling
whereby water would be drawn in at the bottom and fired out at the top, as
the barrel rotated?
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