removing constraints in sketcher

[2ms1]

How do you remove a constraint that you've made in sketcher? I'm talking about ones like where you've made a curve tangent to a "centerline" and then don't want it tangent anymore but can't get rid of the little "T", or where you can't move a spline point because it seems to be glued to the intersection of two centerlines?


here's an example of the latter: I can drag around any of the spline points but the two furthest on the left below


View attachment 4185
Edited by: 2ms1

 

[mjcole_ptc]

For both of the following options it helps if you choose Costraints from the selection toolbar.

Tap Right button until you see it highlight, then select it and hit delete.

Right click near the constraint and choose pick from list and you can more easily pick out the constraint.

show_selected_item_id yes
This option will display line and constraint id numbers so instead of seeing End of Curve you see End of Curve ## so you can be more sure of what you are selecting.

Show_Item_Id example

Other sketcher config options new in WF3

sketcher_palette_path X:\Path\to\Sketcher_Palette_Folders
Allows you to add a folder containing named folders with .sec sketches. These folders become tabs in the Sketcher Palette tool.
sketcher_undo_reorient_view yes/no
Self explanatory
sketcher_auto_create_refs 2*,1,0
This option allows you to prevent Pro/E from picking Right Top or Front as the two section references.
2 Is the Pro/E default and I have always found it annoying.
1 Automatically adds the Orientation reference as the first ref and allows you to choose the second.
0 Lets you choose the references you want.

sketcher_dimension_autolock no*,yes
This option differs from sketcher_lock_modified_dims because it locks dimensions when you create them or make them strong without having to modify the value
<br style="color: rgb(0, 0, 255);">Did PTC use _skamps because they didn't want to write the descriptions?
sketcher_collinear_skamps Y/N No description
sketcher_collinear_constr Y/N Description of option included

What does SKAMP stand for anyway SKetcher Advanced Menu Preferences
What happens if you set one as Yes and the other as No?

Michael


Edited by: mjcole_ptc

 

[sip]

Hi 2ms1,


I sometimes just delete the reference - poof - the constraint is gone, and then you canconstrain or dimensionit however you want. Even if you put the refernce back in, it will not put the constraint back in.


Sip

 

[prohammy]

2ms1,


Another option that I use quite a lot is to create a dimension (it doesn't matter what it is to). This will pop-up the Resolve Sketch box and you can delete the offending constrait from there


Kev

 

[mjcole_ptc]

Kev's suggestion of creating a conflicting dimension is a good one.

However I have seen cases where the Conflicting Constraints box doesn't give you all the options for resolving constraints and sometimes leaves some out. This is usually the case with Strong Dimensions which you have to delete first because they don't pop up in the conflict box.

Michael

 

[Mindripper]

Itend to diagree with the concept of generating dims to fight other dims out through the Conflicting Constraints box: sounds like extra work that could prove painful, instead of using a (reasonably) well thought-out dimensioning scheme.


Locking your dims is quite useful too, as it 'calms down' the sketch updating algorithm by reducing the number of decisions it needs to make, and reduces the incidence of dimension spawning.


I wish the tutorials I had used to re-learn Pro/E (from PTCU) had discussed this new-ish feature some more: it would have saved me a lot of screwing around in Sketcher over the last six months.

 

[prohammy]

Kev's suggestion of creating a conflicting dimension is a good one.

However I have seen cases where the Conflicting Constraints box doesn't give you all the options for resolving constraints and sometimes leaves some out. This is usually the case with Strong Dimensions which you have to delete first because they don't pop up in the conflict box.

Michael

Sorry MJ,


I should have been a bit more specific, generally I try to delete the offending constraintfirst, and if that proves to be a pain in the butt, I then try to override it with a dimension


Kev
Edited by: prohammy

 

[prohammy]

2ms1,


Another more drastic approach to the problem (only reserved for do-or-die scenarios, and again Mindripper may not agree with this on ethical grounds

) is to delete the sketched reference (which will delete the constraint/drop it to a weak constraint), and then choose the sketched ref again should you need it.


Kev

 

[Jacoolo]

For both of the following options it helps if you choose Costraints from the selection toolbar.

Tap Right button until you see it highlight, then select it and hit delete.

Right click near the constraint and choose pick from list and you can more easily pick out the constraint.

Michael

this is always enough. Just have in mind - if feature which contains sketcher you want to modified is copied or mirrored, there is no way to remove reference. So this way to remove constrain is out for coppied feats.

 

[dr_gallup]

When all else fails, turn off the Intent Manager.