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Drawing Projections

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KWIL06/11/2016 10:44:34
3083 forum posts
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I note with interest the Pi Tape is 1/2" wide and 0.25mm thick.

JasonB06/11/2016 13:05:38
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Posted by Ajohnw on 05/11/2016 23:17:48:

The answer to about 666mm problem is to always follow it with a tolerance. About 67cm isn't much better.About 6 1/2 of the units I can't remember is probably the best one. I chose 666 as it's the number of the devil. It's also about 2ft.



I hope you are not basing your kitchen on 666mm being "about 2ft" you may get away with thinking 600mm is 2ft but 666mm is just over 26"

Bandersnatch06/11/2016 18:57:13
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Posted by Chris Evans 6 on 06/11/2016 08:32:41:

We had a draughtsman who regularly used both on the same drawing and could not see his errors.

Then he wasn't a draughtsman (though he may have been masquerading as one). No more than a toolroom person who uses his micrometer as a c-clamp can be called a toolmaker (yes, I've seen it and yes it was lightly clamped and quite temporary, but nonetheless ....).

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