IronCAD vs Fusion 360 Lesson 13
3D Modeling Techniques Defined
Streamlined Sketching/Feature Based Modeling

These articles started out as product comparisons, but quickly turned into a study in 3D modeling techniques.

When I introduce IronCAD's very flexible design paradigm I have a hard time to get the Pro/e clone users, like Solidworks and other programs to understand the drag and drop design paradigm.

I saw the following video challenges on linkedin and thought I would give it a try on IronCAD. This will give you an idea how different and flexible IronCAD is compared to the conventional Pro/e clone and to the not so conventional Fusion 360.

Fusion 360 Challenge of the Month: SEPTEMBER 2017

Here is the drawing.

IronCAD vs Fusion 360

I truly cannot believe that a part this simple can be as complex as the Fusion 360 presenter makes it. You can see it takes at least 10 times as long as I take with what I have coined "Streamlined Sketching". If you model this way I could not hire you. I can only imagine how long a complex part would take with this heavy sketching and constraining. Constraining is not necessary in any case, what every you gain in modifying by editing the sketch is defeated by the time it takes to set it up.
Watch how simple this part can be with "Streamlined Sketching".

Here is IronCAD. My default is inches, I will change it to Millimeters.

I will drag and drop a block into the scene and size it.

Note: Why does IronCAD call it a scene instead of a workspace? IronCAD was first released as a graphic design program called Trispectives. It still has much of the graphic design functionality. It truly is a wonderful mixture of professional 3D CAD and graphic design, which puts it in a much more flexible category as compared to the Pro/e (Creo) clones.

We turn off the catalog. It has an auto-hide option. We now will create one of the lines to establish our plane. We have two ways to sketch the extrude wizard which directly creates the extrusion and the standalone sketching plane that allows free sketching for complex or reference sketches. We will use the latter.

Now the other reference line.

We will now use the extrude wizard to create the remove extrusion by selecting the top face of the block.

We will now move the origin of the sketch to the corner utilizing the Triball

You will see a new way of modeling utilizing the triball. The triball can manipulate any plane, feature, part or assembly. It is incredibly powerful for moving, copying and linking items. This feature alone moves 3D modeling into a new realm of productivity.

We will now use the inside handles to point the the ends of the reference lines to establish our plane.

Now we size a rectangle that assures we will cut the complete face.

Now just click okay and we have the correct shape.

Now to create a standalone sketch plane for sketch for the rectangular boss. I have never seen anything detailed this way.

We use the standalone sketching feature and select the face.

I just project the two relevant edges and create the offset lines. Go back to the video and watch how the Fusion 360 fellow creates these lines. I wonder if Fusion 360 even has a line offset. He arbitrarily creates a line and then constrains it parallel then locates it. He does it 4 separate times!

We just trim the lines.

We now use the extrude wizard to create a sketch plane on the bottom of the block and set the function to add material.

We will now project the existing lines on to this sketch plane.

We will select okay and pull the extrusion to the relative corner of the top sketch. No need to size the boss like they do in the Fusion 350 exercise. This is the basis of Feature based design, we use existing feature when ever possible. I am not sure if Fusion 360 has the capability or the presenter just doesn't know it is available.

We will now add the 15 millimeters to the extrusion.

Now we are done with this part of the shape.

Now for the bottom cut we just drag and drop a hole block and size it.

We just suppress our reference construction and we are done with the part. You can see with the mixture of Streamline Sketching and Feature Based Modeling the creation of the part becomes much simpler and more productive. Yes, IronCAD is a much more productive modeling system also.

Here is the drawing. When creating a part from any drawing you should do a completely detailed AID (Associated Information Document) to make sure it is correct.

It is nice to be able to just define the auxiliary view without having to do the related projections.

It is very important that you look into how you or your engineers are creating the parts. Streamline Sketching and Feature Based Modeling is easy to learn and implement. It, alone, will increase productivity 10X. Now, IronCAD with its unique integrated history/direct edit functionality can increase your productivity another 5X or more with changes! Again, time is money in engineering.

More on Streamline Sketching and Feature Based Modeling.

3D CAD Modeling Techniques

To experience this increased level of productivity, please download IronCAD for a 30 day evaluation. Legacy data is no problem, IronCAD can read the native files of all of the popular programs. IronCAD is a great replacement for the subscription only Autodesk and PTC products.

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Give me a call if you have any questions. I can set up a skype or gotomeeting to show this part or answer any of your questions on the operation of IronCAD. It truly is the very best conceptual 3D CAD system.

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