Anyone see this happen?
Make a part and use the hole wizard to create a tapped hole.
Detail the hole in a drawing
Add a centre line - then Dimension to the line.
For some reason the hole now must become a clearance hole.
Back to hole wizard (piece of cake to change)
Return to the drawing and the centre lines havelost their assosiativity and
hence too the dimension.
The original point vertex by which the hole is located on the part is
untouched so why do we loose the associativity??
" firstname.lastname@example.org" wrote in
It's a simple problem
I explained it in my original post.
I will try to be more clear.
Make a simple part. Umm, say a cube.
put a hole in it using the wizard.
(I pre-select a face first as I preffer to edit the sketch after the hole
is created and do so frequently)
make a drawing and add center lines then add dimensions. (I always
dimension to the center line because dimensioning to the hole overlaps the
center line thus obscuring the customary 1/16 gap)
go back to the part and change the type of hole. Counter Bore type is the
(So, start with a tapped hole - make the drawing - change the hole to a C-
now change the position of the hole on the part (not necessary since the
center line and extension line changes colour indicating a breach in
associativity but provides dramatic clarity)
I can provide a part and drawing if you need.
Shall I post them to this news group?
Or do you have a preffered address?
Centerline is created from the edges of the hole, thus chaniging the
hole from threaded to clearance changes the actual geometry and the
centerline does not "know" its place anymore. Associating a sketched
centerline to the point on the holepattern would be the answer but very
Kvick wrote in
Very Interesting. Are you sure?
Like you said, It really makes more sense to attach to the center point.
I can't see why it would be more time consuming. After all, the sketch
circle in the drawing representing the hole in the first place, already
has that informtion.
It would seem to me that changing the hole type might force the drawing
to destroy and recreate the the sketch circle. In a warped way that kinda
makes sense. But why do that. I suppose in the case of changing from a
through hole to a blind hole or where a hole partially breaks torough a
skewed face (or curved face) then hidden or partially hidden lines are
required, which would necessitate two arcs, one of which is solid line
type and the other hidden line type. But who cares. the original center
point remains the same and the drawing hase that information or must
retrieve it. either way it's location is always available before the
center line is placed.
The hole type and center as well as the face on which the hole point
rests are readily available to the drawing.
I don't see where the extra work comes from.
An interesting discussion and it prompted me to conduct a little
I created a tapped hole and then centerlined it in a drawing.
I changed the tapped hole to a clearance hole - the center lines remained
I changed the clearance hole to a countersinked hole - center lines
Changed from c-sink to c-bore and the centerlines lost associativity.
Changed back to tapped hole and voila! the center lines reaquired their
Now that's interesting.
Anyone else notice this?