I am looking for matterial or sugestions where and how could I use 3D sketching.
I am not using it, but maybe it could be a nice tool to use, any sugestions?

Sweep and Frame Generator are frequent uses of 3D sketch
http://home.pct.edu/~jmather/content/DS ... al%207.pdf

Loft rails
http://home.pct.edu/~jmather/content/DS ... l%2014.pdf

Curve driven (misnamed Rectangular) patterns
http://home.pct.edu/~jmather/SkillsUSA%20University.pdf

Wrapping/projecting to face and many more uses.

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http://home.pct.edu/~jmather/content/CAD238/AutoCAD_2007_Tutorials.htm

Skeletal Modeling. I use it a lot combined with 2D sketches and work planes. Think of it as "Connect the Dots" in 3D. Consider the image below of a sprint space frame, the Orange is the vertical 2D that places all the tube points on the mid plane. The blue are a single 3D sketch. Each segment is connected by midpoint to a point on the orange sketch and the lengths establish where each of the tubes needs to be welded or bent. Simply connect the endpoints of the blue lines to make the sweep paths for the frame's tubing runs.

3D Sketches are very useful creating helical curves, creating threads. You can watch the videos on following link--

http://nisheeth-inventortalks.blogspot. ... odesk.html
http://nisheeth-inventortalks.blogspot. ... entor.html

Interesting videos. Seems like someone is doing a lot of extra work and doesn't know about switching to the Ergonomic Icon set.

Yes, the work done in these videos, can be done in less time by using advance methods of Autodesk Inventor. But I do not know these advance techniques. But the videos , still can be beneficial for beginners and people can get an idea how work is done in Inventor program.

Anyone know how to do it in a better and smarter way can upload a better video, that will be useful for me as well as for the other users of Autodesk Inventor program.

Could I get more information about Ergonomic icon set?

Options / Colors / Amber Icon Color Theme
This is based on the original icons that shipped with Inventor. They were constructed based on research in ergonomics and productivity. Later, someone made a management decision to change them to mono-tonal blue to "look" like other Autodesk products. Regrettably, they did not understand the utility in purpose designed iconography when the created the counter productive blue ones.

Would it be possible to find some data about these ergonomic icons? I would be really interested to read about it.

One of the biggest problems I have had with 2D sketches is that the only way to reference origin geometry is to PROJECT it into the sketch. But with 3D sketches, you can directly constrain and dimension to the origin geometry (and other work features, for that matter). No projection is required. I wonder if it would be worthwhile to use 3D sketches for everything, even 2-dimensional profiles, just so you can take advantage of this strength. What do you all think?

-cwhetten

Post an example where creating and especially editing a 3D sketch using your technique is easier.
Isn't your origin automatically projected to each sketch for you?
http://home.pct.edu/~jmather/skillsusa%20university.pdf

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http://home.pct.edu/~jmather/content/CAD238/AutoCAD_2007_Tutorials.htm

"My technique" is actually to use 2D sketches except where I specifically need a third dimension (sweeps, usually).

As you are aware, 2D sketches reference the origin geometry through a projection, or a sketch element (line or point) that is linked to the origin geometry. So, when you constrain your sketch elements relative to the origin, you are not constraining directly to the origin geometry, but rather to the sketch element that is linked to the geometry. A small distinction, I know, but I work with a few designers with Pro/E and SolidWorks backgrounds that find this fact atrocious. I don't know if I understand why this is such a big deal to them, but they are not shy about sharing their opinions.

The only problem I have experienced with this is when I need to redefine a 2D sketch onto another plane/face. Whenever I do this, the projected geometry loses its link to the origin, and it becomes just another sketch element. In order to re-constrain the sketch to the origin, I have to re-project the origin, then re-apply constraints. It can be a bit of a pain, but I have to do this so seldom that I don't see it as a glaring flaw with Inventor. As far as using a 3D sketch instead, I don't think it would be much help in this situation. It would probably be a lot more work to redefine the orientation of the sketch in the 3D environment than it is to repair the constraints to the origin in a 2D sketch.

I brought this up because I thought it might be an interesting topic to discuss. Does anyone else have issues with the fact that Inventor requires you to project the origin geometry instead of just constraining directly to it?

Can you post an example file of this exception case.

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AutoCAD 2013 Certified Professional
Autodesk Inventor 2013 Certified Professional
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http://home.pct.edu/~jmather/content/CAD238/AutoCAD_2007_Tutorials.htm

Ah yes, the Pro/E sketcher is so much easier to use. (I haven't used the new CREO Parametric, not to be confused with the renamed Wildfire 5.)

SolidWorks? Creating a Coils is great. Create a circle sketch to define diameter. Create a 3D helix curve.... How about a sweep surface around a closed curve...

Each program has it good points and bad. The fun part is sitting down and trashing the competition (whatever it is) on the weak points.

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AutoCAD 2013 Certified Professional
Autodesk Inventor 2013 Certified Professional
Certified SolidWorks Professional
http://home.pct.edu/~jmather/content/CAD238/AutoCAD_2007_Tutorials.htm

No, sketch planes are fundamental to 3D modelling techniques, I don't see the point in referencing something that isn't represented on the plane.

2D sketch has many more features than the 3D sketch that makes them easier to use. Equals constraint, orthogonal dimensions, nodes at the end of an arc, projected geometry that updates, dimensions that don't flip when making large changes to models and many more. A 2D sketch would always be my preference, when I use 3D it is usually driven off 2D sketches.

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"Oompa Loompas of science" - Sheldon Cooper
I thought I was wrong once but I was mistaken