It all depends how the model was made.. It's hard to know w/out actually looking at the model. One thing which you should probably do is fully define the model.. It's going to have an effect on how it rebuilds during the changes.. Also, error fixing isn't as hard as you'd think.. Start by making a copy of the model.. this way if you 'implode it' you still have a copy.. then fully define every sketch in the model.. then go back and make your change.. use the roll back feature to step through the model and update the sketch's.. 90% of the time its something pretty simple to fix.. it's usually faster than re-drawing the model..Depending how complex it is.. etc..
JerryFlyGuy
The more I know... the more I realize I don't
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)