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Mirroring a part results in unnecessary lines
peter_morris
Member Posts: 43 ✭✭
Hi, I'm modelling a fairly simple tool-post that is symmetrical about the diagonal. I have modelled one half and then mirrored it to create the final version, but in doing so I get a vertical lines where the two half's meet, strangely I don't see an equivalent horizontal lines. The model is in my 'Smart & Brown Model M Mk1' folder and entitled 'Tool Post'.
Any ideas to resolve will be gratefully received.
Regareds
Peter
Any ideas to resolve will be gratefully received.
Regareds
Peter
Tagged:
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Best Answers
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Your sketch is unconstrained and the two faces remain two faces because they aren't parallel. See screenshot. I would suggest constraining the sketch or the mirror plane to ensure the sketch lines are exactly perpendicular to the plane.
Paul Chastell
TVP, Onshape Labs7 -
Oh, didn't even look at the sketch, good catch.
Even the holes are slightly off center of the mirror plane.
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Answers
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Select "Add" not "New" in Mirroring function and select your first half part as Merge scope.
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Hi MB - this is the URL for the model: https://cad.onshape.com/documents/afcae641e428cad745413fca/w/fd85d0d9190e07fbb3d88655/e/0edef1eefcbe8d81d146b68e
I'm not sure whether that is what you want though? Can you explain what I need to do if it isn't.
Hi Krz, sadly that is what I had done already. If I create a New part then I have lines on both the horizontal and vertical surfaces. When using 'Add' its just the vertical surfaces.
I'm confused.
Thanks for helping.
Regards
Peter0 -
Not sure, may be a bug.
In the mean time, you can use "Replace face" to knit those edges
https://cad.onshape.com/documents/a834a28e27aa94463c852522/w/04f2cb23a9dd0a9579e1073b/e/680877d326df44fd0c162731
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Your sketch is unconstrained and the two faces remain two faces because they aren't parallel. See screenshot. I would suggest constraining the sketch or the mirror plane to ensure the sketch lines are exactly perpendicular to the plane. Paul Chastell
TVP, Onshape Labs7 -
Oh, didn't even look at the sketch, good catch.
Even the holes are slightly off center of the mirror plane.
5 -
Thanks to you both for investigating and identifying the flaws in my drawing. I'm returning to drawing an old lathe after a 2 year break so having to relearn OS.
The help is very much appreciated.2
