ZW3D vs Fusion 360 Lesson 15
3D Modeling Techniques Defined
Streamlined Sketching/Feature Based Modeling

This part that is so simple it strains credulity to watch this fellow struggle with it. He takes the drawing and starts creating features that just don't make sense. He doesn't evaluate the features that make up the part. I can tell you being in a "Constrain Sketching Only" box is an incredibly limited and time consuming process.

First watch the Video.

Fusion 360 Monthly Challenge June 2018

Here is the drawing.

Lets take a look at this part. First we want to see the basic feature. Not all parts are this simple. We can see a block. With a little arithmetic we can see it is 4.00x1.50x1.50. That will be the first feature we make and continue from there. We can see that the cutout is 2.35x.50. Those are the only created features the others are four .75 blends and two holes.

Let get started.

We make sure we are in inches.

We create a new file by selecting Part/Assembly. ZW3D offers a multi-object design space, so top down design is part of the design process.

We are ready to go.

We insert a primitive block at X0Y0ZO and size it.

Now we add the fillets since they are both the same we do them all in one step. For the life of me I cannot understand why the "constrain sketching only" crowd insists on sketching fillets.

Now for the cut. I did the fillets before the cut to eliminate a step. I insert another primitive block and set to subtract. ZW3D automatically recognizes mid-points so it is nothing more then selecting the mid-point of the vertical line and size the block

Now for the two holes. We will insert a primitive cylinder and set to subtract. Using the center of the fillets in both cases.

There you go. No sketching, just feature based modeling design with shapes.

I know, I know, not all of you have primitive shapes to design, in fact probably none of you. So let's do it with sketches to show you Streamlined Sketching using the same idea of looking at the part and seeing the basic shapes.

We open a new part.

Now for our first sketch. We select our front plane and select the up vector.

We enter the sketching mode. We create a rectangle with a center point and corner. We start at XOY0 and set the size. Nope, I am not putting in one constrained dimension. You don't have to in any system.

We save the sketch and continue in the modeling mode.

We extrude the sketch to create the block.

Now we add the fillets to eliminate a step.

Now for the cut. We select the XY sketch plane and select the up vector.

I create a horizontal reference line from the left edge of the part 2.35 long. The create a rectangle with corners. ZW3D recognizes end locations of other entities and I just create an arbitrary rectangle that will create the cut. No, I will not use any constrained dimensions. I will tell you again, you don't have to in any system.

We delete the reference line and exit the sketch and create and subtract extrusion and size it.

Now I would probably use the hole tool to put in the holes. But we will stay with sketching only. After I thought about it I could have used this face for the cut. Probably saving the steps of setting up the plane.

ZW3D automatically recognizes the center of the fillet and creates the circle. I set the size and I am done.

We subtract extrude.

We do the same for the top hole.

Add the circle and set the size.

Extrude subtract and we are done.

Yes, primitive shape design is much faster, but streamlined sketching is much less complicated and faster than constrained sketching.

Now to detail the part. If you are actively converting drawings to models you have to detail them again. I was consulted on a complex part and after a short review of the drawing and part I saw that the fellow had made some blatant errors. Detailing is a very quick way of checking the part. Yes, time consuming, but not as time consuming as finding the part doesn't fit.

All You Wanted to Know About Drawing to 3D Conversions

I am not a believer in the isometric representations shown in the drawing. If you can not read a conventional AID (drawing), you should not be in engineering.

ZW3D has integrated AIDs. All you do is select 2D sheet. It is a bit redundant what other kind of sheets are there?

It is very important that you look into how you or your engineers are creating parts. Streamline Sketching and Feature Based Modeling is easy to learn and implement. It, alone, can increase productivity 10X. Now, ZW3D with its unique history and robust 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 Modeling Techniques Defined

To experience this increased level of productivity, please download ZW3D for a 30 day evaluation. Legacy data is no problem, ZW3D can read the native files of all of the popular programs including the PMI data of NX, Solidworks, Catia and Creo. ZW3D is a great replacement for the subscription only Autodesk and PTC products.

For more information or to download ZW3D

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