Mirror tool accuracy

[LeedsLad8t6]

Hello all, Does anybody else have slight inaccuracy's with the mirror tool every now and again? I find sometimes when trying to mirror features that they do not measure exactly on each side, the difference is tiny! but it's still there when you inspect the length... When I have encountered this in the past I have been mirroring from planes center to the part, I can't fathom it out or repeat the issue on demand. It just seems to crop up every now and again 😕 Kind regards Daniel

[chad38]

Are you certain it's not related to rounding of the digits? For instance 7/16 rounded to 3 digits can be displayed as .437 or .438.

[LeedsLad8t6]

Thank's for your reply, hadn't thought of that although this issue involved straight edges only. I have re attempted and solved the issue, what I did wrong to begin with I'm not quite sure 😕 Thanks. Daniel

[MikahB]

Daniel - did you notice if you click "More >>" at the bottom of the mirror dialog there are a couple options on how the mirror is performed? I think it defaults to "Identical" but maybe yours is on "Optimized" or "Adjust."

[LeedsLad8t6]

I did not know that no, I will have a look at this in more detial. Thanks Daniel

[blair]

Since IV runs to something like 13 decimal places, as in the previous post, check your rounding. In the Document settings, you might have the sketch options set to only 2 decimal places. I set this to 4 places as I want my fractions to stay as fractions. 3/16" will stay at 0.1875" and not round up to 0.188 or 0.19