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part family precision error

part family precision error

part family precision error

(OP)
I made a family of a simple oring and have a few hundred sizes. when choosing the component I get the cross section diameter to be .69999999999999, .700000001 and .70. All of my rows in the family excel file all have .70. I am wondering what is causing this error? Also when I choose .70 the other two options are still valid.

RE: part family precision error

Is this a driving dimension or a calculated dimension?

www.nxjournaling.com

RE: part family precision error

(OP)
The dimension is used to define a circle in a sketch. CROSS_SECT_DIA = .070 . I usually have something like p20 = CROSS_SECT_DIA . could that be the issue?

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