Who is using model items for their drawings?
I am comparing between model items and manually dimensioning on a drawing.
List down the PRO and CON which ever method you think is best!!!
Welcome to the forum.
I manually insert mine. I have used model items a few times, but it seems to take so long to get them moved around so they look good that I don't believe it saves much time. Also, many of my drawing views are of assemblies and I believe they have to be dimensioned manually anyway.
I've never found model items to be worth the trouble, I just toss dimensions wherever when designing the part and until the entire part is complete I can't predict where they'll be best and it's easier to put them on the drawing manually.
Also, a lot of times holes aren't all dependent on the same feature, but calling them all out as ordinates simplifies things for the machinist so they are easier to do manually.
I typically add my own dimensions. Most of the drawings I work with are assemblies, so I never seem to have the model dimensions I need. Every so often I will use model dimensions if I'm working on a fairly simple part drawing just to see if it has gotten any better. Usually I go back to adding my own dims though.
I usually use a combination of both inserted model items & manual.
Pro's for Insert > Model Items;
The model can be tweaked via the inserted dimension (Can save time if the implications of a change are fully understood)
Tolerances applied to dimensions in the model's sketch will be shown in the drawing view
Tolerances applied to dimensions in a drawing view will be reflected & saved in the model's sketch
Con's for Insert > Model Items;
The model can be tweaked via the inserted dimension (Can wreak havoc if the implications of a change are not fully understood)
Can sometimes be a PITA to move dim's around to tidy up a drawing
Dimensioning scheme in model sketches will not always reflect the scheme needed in a manufacturing drawing
Tolerances applied to dimensions in a drawing view will not be reflected in the model's sketch
We use what we call a Master Sketch. It has all the dimensions in model the way we require them to look in the Drawing. We change the Master sketches to manipulate the part.Once the part goes to the Drawing Insert Model items and tada all the dimensions we needed. No more down time adding each dimension.
There is more that goes into our parts than you think and all of our parts are unique, but nearly the same. We design Plastic Consumer Packaging Goods.
Our User Group is getting ready to have a meeting this month and this method is actually going to be discussed. I think its going to be a big hit.
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