newbie - going back and editing a sketch

newbie question:

I am working through a part, then going back to edit a sketch -- when I go
into the edit sketch mode, for some reason, SW doesn't seem to want to
allow me to actually adjust the sketch. I can only seem to select the
actual object that was derived from the sketch previously.

I have tried to roll back & supress the tree, but to no avail.

thanks

 

Well, I don't mean to sound like a snob, but first I think you need to
explain a little better if you want us to bother.

BUT since you're a newbie I'll give it a try. I SUSPECT from some of
what you've said that PERHAPS the sketch you're dealing with is EITHER
truly a "derived sketch" by the true definition (see the Help) OR you've
Converted (look up Convert in Help) sketch elements from another sketch
to create parts of the sketch that you can't seem to modify.

If the former is correct then, yes, the 2nd sketch is dependent on the
first. Change the first, you can change the 2nd, but NOT the other way
around. BUT you can break the relationship if you Exit the sketch,
right click on it in the Feature Tree and choose Underive.

If the latter is correct, then hit the Display/Delete Relations icon (or
go to Tools > Relations > Display/Delete) and you'll see that the
relations that exist are "On Edge". You'll have to delete those
relations in order to be able to change the sketch entities.

Hope that helps.

'Sporky'

 

It did thank you, and I'll try to explain myself better in the future!