Subtract Problem
Subtract Problem
(OP)
Hi
having a problem with the subtracting. trying to cut the green mother block by using the white cylinder. somehow it couldn't be cut until the diametre was reduced to 16 or less. but i do need 20mm diametre
attached is the file
thsnks
having a problem with the subtracting. trying to cut the green mother block by using the white cylinder. somehow it couldn't be cut until the diametre was reduced to 16 or less. but i do need 20mm diametre
attached is the file
thsnks





RE: Subtract Problem
RE: Subtract Problem
can you upload the updated part?
thanks
RE: Subtract Problem
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Subtract Problem
I made that diametre to 19. but failed at 19.5. And it became OK when I increased that diametre to 27.
Thanks
RE: Subtract Problem
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Subtract Problem
Same problem "Unable to perform Boolean"
RE: Subtract Problem
RE: Subtract Problem
it is a problem with the contour faces do a examine geometrie with 0.01 tolerance you wil find face problems on the contour face in the area you want to do the boolean
RE: Subtract Problem
Anyway is it possible to fix it in NX6? - this is the ultimate question.
RE: Subtract Problem
RE: Subtract Problem
RE: Subtract Problem
RE: Subtract Problem
RE: Subtract Problem
RE: Subtract Problem
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Subtract Problem
Before NX6 this problem happened. But it's really easy to fix.
RE: Subtract Problem
I ran an...
Analysis -> Examine Geometry...
...and noticed that there is a 'Consistency' problem with a face which is near where this subtraction is taking place. If the circle is set to around 19mm everything is fine, but as you get to around 19.2mm it starts to creap onto the face with the inconsistent topology and thus the Boolean failure occurs. So I ran your part through the 'Heal Geometry' utility and it fixed the model removing the inconsistency. I then recreated the tool body extruded from from 20mm dia arc and now it subtracts just fine.
Unfortunately I can't upload the new model until Wednesday as I'm currently out of the office and don't have access to a highspeed network.
However you can try this yourself. What you need to do is delete Extrude(15) but leave the 20mm arc in place. Now go to...
File -> Export -> Heal Geometry...
...and select the 'Select from Displayed Part' option and accept the default name (the system will create a new part file with the suffix '_hg' added to the current name). Once complete, open the new part file and using the existing 20mm arc create a new extrude feature and subtract it. It should now work fine.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.
RE: Subtract Problem
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
http://www.plmworld.org/museum/
To an Engineer, the glass is twice as big as it needs to be.