decimal places required with basic angles
 

decimal places required with basic angles
how is it determined as to the number of decimal places when using basic angles and decimal parts of degree?
(are trailing zeroes necessary?)
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use as many places as necessary. (rarely more than 2)
do not use trailing zeros.
if you have 7 features equally spaced you can just show the quotient in the box [360°/7] to specify the basic angle.
paul

i always match the basic dim decimal places to its tolerance decimal places, regardless of trailing zeros.
chris
solidworks/pdmworks 08 3.1
autocad 06/08
ringman,
i would rather the trailing zeros were not displayed, but solidworks does not have a setting for that. usually, i set it to one decimal place, just in case the decimal is something other than zero.
jhg
i would use only as many decimal places as necessary. while y14.5 specifies that basic inch dimensions contain the same number as the fcb, it does not address basic angle dimensions.
believe it if you need it or leave it if you dare.fff"> - robert hunter

sw does have a setting to remove trailing zeroes.
since basic dimesnsions have no tolerance, one only needs as many decimal places as necessary to get the precision one needs. trailing zeroes have no effect on tolerances in feature control frames.
on most drawings it does not matter because the angle tol is driven by the title block, i normily keep it set to one place. the only time that i might see it mattering if there is a ± to the angle. if it does matter i would use a slop of some other way of dim the part.
chris
"in this house, we obey the laws of thermodynamics." homer simpson
motorvib, the op is talking about 'basic' dimensions so the title block tol isn't relevant, it's also not +-.
kenat, probably the least qualified checker you'll ever meet...
thetick,
on sw2007, i can remove trailing zeros from metric dimensions, which allows me to conform to asme y14.5m-1994. it does not seem to allow the removal of trailing zeros from angles.
jhg
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