Dimensioning to center mark rather than hole

Hello all,
When I want to dimension a hole's distance from an edge in a
drawing, it seems that I automatically pick the center mark rather than
the hole edge when I click on it - resulting in a 90° mark every time.
I have to zoom in on each hole and select the edge precisely to get
its distance from the edge.

I guess I could delete all the center marks, dimension all the
holes and then add them, but is there a better way to dimension to the
hole?
Thanks
Chris

 

Hold your Shift key as you select the edge of the circle that you want.
Keep holding it until after you click to place the dimension.

WT

Hello all,
When I want to dimension a hole's distance from an edge in a
drawing, it seems that I automatically pick the center mark rather than
the hole edge when I click on it - resulting in a 90° mark every time.
I have to zoom in on each hole and select the edge precisely to get
its distance from the edge.

I guess I could delete all the center marks, dimension all the
holes and then add them, but is there a better way to dimension to the
hole?
Thanks
Chris

 

Oops - I should be more clear. I think you're describing how to
dimension from the edge of a hole (i.e. the maximum or minimum distance
from the hole edge)

What I meant was I am trying to dimension the hole position, from the
center of the hole, but when I click on the hole, I usually end up
picking one of the line elements of the centermark. This results in an
angular dimension from the centermark.
Chris

 

Or zoom in really close to the hole so you can distinquish its edge
from the center mark, or put in center marks after dimensioning the
part.

 

The 2 'axis' of the centermark work like an x and y axis. In other
words, if you click on a horizontal model edge and then click on the
horizontal component of the centermark you will get a linear dimension.
However if you click on a horizontal model edge and then click on the
vertical component on the centermark you will get an angular dimension
(90 degrees).

Zander

 

Great stuff. Thanks, folks. I appreciate the informative responses as
much as I appreciate finding out I'm not crazy and this happens to
other people as well.
Chris

 

Chris,
I've found centre-marks to be extremely unreliable.
After making a few changes to model, even just moving hole a significant
distance usually results in centre-mark dropping it's connection to the
hole.
Do your dimensioning to holes then add centre-marks later to those holes you
feel are necessary

Cheers

--
Neville Williams
Z-Axis Design - NZ
"remove the KNOT to reply"

Hello all,
When I want to dimension a hole's distance from an edge in a
drawing, it seems that I automatically pick the center mark rather than
the hole edge when I click on it - resulting in a 90° mark every time.
I have to zoom in on each hole and select the edge precisely to get
its distance from the edge.

I guess I could delete all the center marks, dimension all the
holes and then add them, but is there a better way to dimension to the
hole?
Thanks
Chris

 

Chris,
I whole-heartedly agree with Neville, dimensioning to center marks
should be avoided. Center marks are draft/drawing items and create
nothing but problems. We have several rules of thumb and overall
methodologies that help avoid this:

HTH,
Eddie