Using Inventor in 2014 Factory Design Suite Ultimate, I have run into an issue using offset in the 2D Sketch realm.
I have created geometry, a rectangle, and am beginning to add other items. I no longer require the dimensions for the rectangle so I delete them. However, once i have done that, the next item that I dimension after offsetting, causes the entire sketch to scale in accordance with the dimension I just set. I have to undo my way back to get my geometry right again and add the dims back and then I can proceed again. I have never had this problem before. Another odd thing, is that I can offset just one side of the rectangle, where normally the whole rectangle would offset. Is this new?
Solved! Go to Solution.
If possible to post the file and screen captures of the issue. Possible change in workflow to add additional sketch constraints prior to deleting the existing geometry may help. As with different releases, changes to the model kernel can affect how the algorithms interpret the geometry.
I have not installed 2014 yet so I can't reproduce your issue, but are you perhaps and AutoCAD user? I often see AutoCAD users deleteing their construction geometry/dimensions etc.
Inventor does not like uncontrained geometry, it can become unpredictable, as in your case. Unless you specifically want the goemetry unconstrained, rather leave the dimensions inplace.
After selecting the Offset command, RMB and select "Loop select" option.
I am an AutoCAD user but have been using Inventor since the 2010 release and this is the first time I have seen this happen. I have 2011 installed on another machine and cannot duplicate this problem nor can my users who still have 2013.
Will try to post files but have not had much luck doing so lately.
I'll check with them again to make sure. That is INSANE. Why would Autodesk let that go like that?? I cannot think of reason one why anyone would want that action.
This was an enhancement added to 2013 release and is great.
It ensures that your sketch remains proportional after adding first dimension (entities don't end up "crossed-over").
Before this enhancement you had to get your original geometry pretty close to actual size or it could lose shape when dimensioned. In fact, I used to recommend creating one line, arc or circle and dimension it immediately before doing anything else in a sketch to give a sense of scale. That is no longer needed because your sketch automatically scales for you.
Post back if you need to see an example why this new behavior is better.
As far as offsetting is concerned make sure right click Loop is active. This is one of the few commands that does not return to default.
Please explain. It is a 2D sketch. How could it not be proportional from the get go??? I drew in a 6x6 rectangle. I am going to modify some of the lines of that rectangle later so I erase the dims. I then try to offset a line .0625 from one side, the whole thing shrinks. That makes NO sense to me.
Please explain. It is a 2D sketch. How could it not be proportional from the get go???
JDmather is referring to the first dimension of the first sketch, I think you are having issues somewhere else down the line in the sketch environment.
Previously to 2013 , if you drew a "weird" shape in the sketch environment, and then proceeded to dimension, typically the initial shape you drew would end up crossed over itself. But now in Inventor, they scale this first sketch for you to avoid this.
I am not sure where you are having this scaling issues..
Could you attach the file to help clear up??
..... I then try to offset a line .0625 from one side, the whole thing shrinks. That makes NO sense to me.
Attach a file here that exhibits this behavior. I'm not sure what you are really saying as this doesn't sound like anything I recall ever seeing.
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