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HOLE_VOID.png

Sometimes I need to create an hole over an already existing hole. Example: i have an hole DIA 5 mm and I need to create an other hole G 1/8 for the greaser, with the center in the same point of the center of the existing DIA 5 hole. Modeling refuses to create the second hole complaining that the selected center point does not belong to the selected surface. Is there a way to escape from this issue, other than to delete the first hole?

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I can just show it to you in V18 and in german.

There is no face where you clicked, because in the center of the hole is only air  

The existing feature can be "switched" (exchanged) into another feature.
You could choose the feature "hole with partly threat".

But if the first hole is not a feature you can only delete it before making the new one.
And I believe you can not put two features at the same place.

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Don't know what version you are using but if it's v17 you may use the machining feature 'Stepped Hole'.

http://it.ptc.com/appserver/wcms/relnotes/note.jsp?&im_dbkey=105233&icg_dbkey=826

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Grüße aus Sachsen
pw

Karl Marx ist tot, Einstein ist tot, und mir ist auch schon ganz schlecht!

[Diese Nachricht wurde von Patrick Weber am 06. Jan. 2012 editiert.]

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Thank you to both, in this way it is possible to solve the problem, if the hole is defined as "hole" and not as simple extrusion.

Best regards, have a nice week-end! 

Ale.

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