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| German drawings question |
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| Chuck in E. TN:
I was looking for plans for my next build attempt and found a single cylinder vertical steam engine on the John-Tom siteI have used various websites to translate the text from German to English. http://www.john-tom.com/MyPlans/SteamPlans3/GermanSingleVertical/BP-Dampf.pdf I have a question on the dimension call outs. Several detentions are given as 2 numbers separated by a comma. For example, on the second page, the base plate(Grundplatte) has a hole in the lower right corner dimensioned 3,5. Is this the same as 3.5, or is it specifying something else? I understand that Europeans use the comma as we Americans use the decimal point in numbers. I just want to be sure I understand the call out. Chuck |
| awemawson:
The continentals have a habit of using a comma rather than a full stop to indicate their decimal point. Germans particularly. Heidenhain controls revert to that mode if they lose their parameters, as it's a selectable option which defaults to the German norm. |
| John Swift:
Being from the UK I don't think every idea that comes out of europe is good but it makes sense the Germans using a comma instead of a full stop it will be easier to tell the difference between a decimal point and stray spots on a copied diagram the same kind of logic is used on electronic circuits by placing the letter used as the multiplier in place of the decimal point eg 3300 ohms can be shown as 3k3 instead of 3.3K John |
| David Jupp:
Also note that German drawings are likely to use First Angle projection. |
| Will_D:
And they always have a plan! |
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