HOW DOES THIS WORK IN SEwST ?

[beachcomber]

I'm trying to get to grips with ST, but I find it really frustrating.
I've created a rotated block on the top plane and put 3 holes in it.
I've dimensioned the holes and now I want to change the position of one hole using the dimensions.
On the attached image If I change the 30 dim to say 28 it cuts off the block and holes as shown on image 2.
Can anyone give an explanation as to why this should be ?

http://files.engineering.com/getfil...3-0863-424f-a8c7-b2e491cf9885&file=image1.jpg

http://files.engineering.com/getfil...d-4597-4b61-9518-19f3adc2796e&file=image2.jpg

bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.

 

[donyoung]

BC,

could you upload that sample? I quick testcase made did
not show that behaviour and please specify which Liverules
are set active (checkmarked)

dy

 

[beachcomber]

I didn't save the last one but I've re-created it here -

http://files.engineering.com/getfile.aspx?folder=9a2d2b61-148b-4a48-b91d-311ff109706d&file=Part6.par

Default live rules (tangent, parallel & perpendicular UNCHECKED)or live rules suspended it still does it.
Try changing the 24.9 to 25.
Maybe it's something to do with the dimension axis?

bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.

 

[donyoung]

BC,

You guessed it: it's the dimension axis as defined to be the
block's upper left edge. I think it's a bug.
To circumvent:
1) make the small plane at the left grounded
select the face
QuickBar --> Relate
choose Ground
accept by the green checkmark
- or -
2) delete the dimension and recreate it
select either SmartDimension or Distance between
within the command bar --> press 'Lock dimension plane'
select the upper face of the block
set the dimension
after the dimension is created unlock the dimension
plane --> F3 (otherwise it will persist)
ESC to terminate the dimension function

All created dimensions will be created as variable (driven in
non ST-Mode terms). To make them fixed select the dim value and
press the padlock symbol. When changing a dimension pay attention
to the black arrow which indicates the direction of the change.


HTH

dy

 

[donyoung]

/Edit

method 2) does not require a dimension axis

 

[beachcomber]

Where is 'Ground'

bc.
2.4GHz Core2 Quad, 4GB RAM,
Quadro FX4600.

 

[donyoung]

when you've select the plane an selected Relate on the
QuickBar LMB on the rightmost icon and on the 'Flyout'
choose the last icon.

dy