According to all of the charts I have looked at, F7 fit tolerance for a 3mm diameter hole is +0.016/+0.006. SolidWorks hole wizard puts the F7 fit tolerance for a 3mm diameter hole at +0.018/+0.008. Anybody have any idea why this might be?
No, but you can adjust them and then save them out as a favorite.
I'm a little rusty on my metric fits, but the tolerances differ depending on whether the fit is shaft dependent or hole dependent. The best reference book I have seen is METRIC STANDARDS for Worldwide Manufacturing. It is easy to use and has every combination of fits imaginable.
I would send this to your VAR. I just checked it on my system and the F7 fit tolerance for a 3mm diameter hole is coming back as +0.016/+0.006. We use the F7 fit tolerance all the time and would be interest in what your VAR says.
The only problem we have run into is sometimes solidworks would give an error saying it can’t find the tolerance or something close to that. Then it would just display zeros. We would then have to changed are drawings overall drafting standard under document properties from ANSI to ISO. It would then display the correct fit tolerance. I would then change it from ISO back to ANSI and solidworks would keep the fit tolerance.
It’s a long shot but you might try changing the document properties and see if it will give you the correct tolerance.
You might try loading a different toolbox I think that is where the fit tolerance is saved.
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