yang686526

kelvin mount positional tolerance
i’m currently checking the drawing of part of a kelvin mount, a type of kinematic mount (see figure 3 of this doc to get some idea what i’m talking about
kenat,
i would use "profile of a surface" considering that it appears that you are not really dimensioning features of size. i would suggest using basic dimensions to define your true profile and using "profile of a surface" to apply the tolerance. see if this link helps
thanks powerhound, i started to think about profile of a surface, especially depending how critical it was for function etc. the link is of some use.
however, having spoken to the designer, it's not as critical as i thought and so i've proposed changing the dimensioning scheme to be more like a regular slot and hole and it seems the designer is ok with this.
apparantly this is a temporary stop gap and isn't worth spending too much time on, there is to be a better mount in the near future which i will spend more time on and will probably look to apply profile of a surface if applicable.
thanks again.
kenat, probably the least qualified checker you'll ever meet...
powerhound,
now that is a good web site. a star for you.
bradley
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