mirrored surface isn't symmetric wtf?
mirrored surface isn't symmetric wtf?
(OP)
Howdy all,
I'm working with some boundary surfaces and after running into some weird filleting errors, ran a symmetry check. noting something was asymmetric, rolled back to the point where i mirrored a couple of bodies. Immediately after i mirror the bodies, when i run a symmetry check (i double checked that it's mirrored and symmetric about the same surface!) it isn't symmetric!! WTF????
Is there some hidden resolution setting I can change somewhere?
Any suggestions?
Jason
CSWP, adv mold, adv surf, adv weld, etc.
I'm working with some boundary surfaces and after running into some weird filleting errors, ran a symmetry check. noting something was asymmetric, rolled back to the point where i mirrored a couple of bodies. Immediately after i mirror the bodies, when i run a symmetry check (i double checked that it's mirrored and symmetric about the same surface!) it isn't symmetric!! WTF????
Is there some hidden resolution setting I can change somewhere?
Any suggestions?
Jason
CSWP, adv mold, adv surf, adv weld, etc.






RE: mirrored surface isn't symmetric wtf?
RE: mirrored surface isn't symmetric wtf?
At the last WMSWUG meeting a guy had an optics package which he used to compare surfaces from SW with the optically perfect surfaces the addin created. Pretty eye-opening.
TOP
CSWP, BSSE
www.engtran.com www.niswug.org
"Node news is good news."
RE: mirrored surface isn't symmetric wtf?
RE: mirrored surface isn't symmetric wtf?
A few years ago I experienced this once, but not since.
My guess it's small? How asymmetric is it?
Chris
SolidWorks 09 SP5.0
ctopher's home
SolidWorks Legion
RE: mirrored surface isn't symmetric wtf?
RE: mirrored surface isn't symmetric wtf?
https://forum.solidworks.com/message/158307#158307
This is a link to the presentation (again, if interested):
h
The presentation does not go into much detail on surfacing or the models. For more info on surface accuracy you might surf for the SWW2010 presentation from Mark Biasotti "Advanced Modeling 301".
Harold
SW2010 SP3.0 OPW2010 SP1.0 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600
www.lumenflow.com
RE: mirrored surface isn't symmetric wtf?
In sheetmetal sometimes you were forced to use faces instead of planes for Mirror command which I think has changed since 2010. From parts I've modeled on multiple CAD systems Planes work better for Mirrors than Faces even supposedly flat surfaces.
Michael
RE: mirrored surface isn't symmetric wtf?
RE: mirrored surface isn't symmetric wtf?
CSWP-Surf
RE: mirrored surface isn't symmetric wtf?
Harold
SW2010 SP3.0 OPW2010 SP1.0 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600
www.lumenflow.com
RE: mirrored surface isn't symmetric wtf?
Often I'll cap the open surfaces on half the part with a planar surface first, knit to form a solid body, and then mirror the solid bodies. Join often fails because of zero thickness geometry (or whatever)--this is essentially the loose tolerance problem creating microscopic voids of some sort even though ALL the work is done across the main (Right, Top, Front) planes throughout the feature tree! So how could there be any gaps anywhere? Zero should at least represent zero, but often does not.
Jeff Mowry
www.industrialdesignhaus.com
A people governed by fear cannot value freedom.
RE: mirrored surface isn't symmetric wtf?
Anyway, this is interesting and I'll keep an eye on it. I thought my surfacing work was demanding, but yours is a few notches above mine in terms of requiring precision.
Good luck.
Jeff Mowry
www.industrialdesignhaus.com
A people governed by fear cannot value freedom.
RE: mirrored surface isn't symmetric wtf?
When it comes to real swoopy designs I prefer to let the IE people handle that. I am a form follows function person at the tube.
Harold
SW2010 SP3.0 OPW2010 SP1.0 Win XP Pro 2002 SP3
Dell 690, Xeon 5160 @3.00GHz, 3.25GB RAM
nVidia Quadro FX4600
www.lumenflow.com
RE: mirrored surface isn't symmetric wtf?
Jeff Mowry
www.industrialdesignhaus.com
A people governed by fear cannot value freedom.