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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Arrrggghhh! - Metric Stuff Up!
Bloody metric measurements - great system, couldn't and wouldn't argue
against it. But..... Consider this scenario, good people. Ducted heating furnace in the roof was having a good go at coming through the ceiling (being a skilled metalworker, and a RCM lurker, I knew straightaway something was wrong..) Turned out to be crappy install job, vis 1.Vent pipe not sealed properly (so it leaked) 2.Was sitting on a sheet of particle board crap stuff so it rotted through 3.No drip tray set up for stuff ups. So. Decided to get a drip tray made, its a metric world, so did it all in Metric so as to give the order for the tray to the local plumbing supply place. Measured L by B, added 10mm each side for the folded lip, and put the order in. Picked it up, thought "Mmmm..." Seems I had stuffed up the decimal point in my metric calculations - was 200mm wider than required (length was stuffed too, but that was OK - was room up in the roof cavity) so, couldnt get the ******* up through the access hatch into the roof. So, had to cut it down - heaps of work... The Moral - I cant think in Metric, cant visualise in Metric, cant look at metric measurements and think "nah, no way - too wide/long/ narrow thick etc etc" How you guys cope - bloody sick of doing this... Andrew VK3BFA. |
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