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Up Topic Welding Industry / Welding Fundamentals / Mectric system , converting , blueprints ????
- - By leighann hanson (*) Date 11-18-2010 21:16
Any helpful websites or books i can get for dummies like me. I am not good at math or blueprints but need to learn in the next 12 - 14 weeks to keep my job and get on the production line.
Parent - By Mikeqc1 (****) Date 11-19-2010 01:56
http://www.etinews.com/gdt_glossary.html
Parent - - By DaveBoyer (*****) Date 11-19-2010 02:07
A calculator with metric conversion makes it easy, otherwise You need to remember 1.000" = 25.4mm and do the math every time.
Parent - - By grizzzly (**) Date 11-19-2010 03:22
If you are in a metric shop buy metric stuff even the best fitters screw up converting

easy way 10+15=25

stupid way 10 x.03937= .3937= 2/5
than 15 x.03937= .590551 = 3/5
so 2/5 + 3/5 = 1"
and 1 " = 25.4 mm (the wrong ****ing answer)

BTW
http://www.metric-conversions.org/
Parent - - By RonG (****) Date 11-19-2010 17:09
Take grizzly's advice and tool up. To much produtctive time lost with removeing and replaceing your shoes :-).
Parent - - By Tommyjoking (****) Date 11-19-2010 19:10
I worked in a machine shop where everything was metric.  Most of the time anything under a foot will be in MM.  Converting from inches is simple    EX    lets say you have part 2' 2.5"   so  26.5" X 25.4 = 673.1 MM    or 67.31 CM or 6.731 DM or .6731 M      To convert from MM to inches simply divide by 25.4      There are other simple formulas to convert from say meters to to feet etc.  But I always found it easier to remember one formula and break everything down to inches and mm.
Parent - By DaveBoyer (*****) Date 11-20-2010 01:16
When I worked in the auto frame plant in the  '80s, the frame prints started comming in metric. Everything was in milimeters, even dimensions over 20' in length. We just converted everything to inches and decimal inches, as that is how We worked.

I did have an inch/metric tape measure for the crude stuff, and as a quick check to be sure a major math error hadn't happened.
Parent - By rsneha Date 11-28-2018 12:16 Edited 03-24-2020 10:38
I usually use this site : https://www.easyunitconverter.com/
Parent - By Jarhead1 (**) Date 05-06-2019 19:52
https://clippard.com/cms/length-calculator
- - By PipeIt (**) Date 02-04-2011 11:45
Take Dave's advice on the calculator, you can buy a construction calculator at a Lowe's or Menards for less then $30.

I can't live without them.
Parent - By Superflux (****) Date 02-05-2011 20:18
Combination tape.
For those not proficient in Metrics, and your shop will be using both systems, then I recommend the tape measures that have both English and Metric on the blade. This helps give a visual reference to learn conversion. Not that it is necessary, I think it just helps folks to develop that "visual feel". Soon, you will automatically know that 3 meters is about 10 feet.
- - By Paladin (***) Date 12-01-2018 02:46
Well yea. You can buy a metric tape measure.

But, Print says 100mm tube. You've got 4inch tube.
ALL the other measurements off that 4inches are off.
So about every dimension has to be adjusted and converted.
I had to build something once from a metric print and what a pain that was.

Floyd
Parent - By Paladin (***) Date 12-01-2018 02:52
Ha Ha, should have looked.
Replying to a thread with all but one post 7 or 8 years old.
Up Topic Welding Industry / Welding Fundamentals / Mectric system , converting , blueprints ????

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