Learn 3D Modeling and Design – Part 3

Watch the videos divided into 4 parts to learn more about 3D modeling in ARES Commander.

Working with the Frame of 3D Model

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In this video we will create the frame and the fork of the wooden bicycle.

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To create this part of the structure we just need a closed polyline describing the outline of this shape.

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And then these circles to create the holes
in it.

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The method we will use here is
to redraw the outline of this figure.

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So, let’s select the polyline function.

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We can start here.

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In this case we need an arc in this section.

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For that we chose the option ARC with the
“A” key

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and simply indicate the endpoint.

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Don’t worry, if the arc shapes don’t match
at the moment.

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We will adapt them manually.

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We continue to add arcs.

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The last one over here.

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Press ENTER two times to exit the command.

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The closed polyline is created.
What is missing is the correct shape.

Fixing the Shape of the 3D Solid

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We select the polyline and use grips of the 3 arcs to drag and match the base figure.

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Now, let’s extrude the main polyline
along these three circles.

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We specify the extrusion height as 1 unit.

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We now perform a Boolean operation
to subtract the inner cylinders

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from the main solid to create circular holes.

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We confirm, and now our shape is hollowed out.

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Here is the fork.

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It will be a single piece, together with the handle.

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Extrude the inner circle by 12 units

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and the outside circle by 5 units.

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For the fork, we will extrude by 4.5 units.

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We choose the top view.

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If our three-dimensional object was a box, we would see the upper surface.

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The view that we have of the object would coincide with the front view.

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This is simply because the “design basis” was created in the original XY plane.

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Usually we work in 2D.

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We should rotate this bike to match the view
with ARES Commander’s default view.

Let’s view the model

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To correct this, we move to the “RIGHT” view.

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Now, from this view we can rotate the whole figure with reference to the absolute zero …

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… and turn it by 90 degrees.

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We return to the top view,

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now we are seeing the bicycle from above.

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Next, let’s choose an isometric view for the
drawing.

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We need to change the position of this structural
element.

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We will do that from the top view.

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From this point let’s turn it by 2 degrees.

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Now let’s perform a symmetry.

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Note that there is a part above the axis,
but in that case it doesn’t affect us.

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Perform a symmetry of this piece and the two cylinders.

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From an isometric view, we can have a broader view.

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Now we will work with the fork.

Positioning the UCS

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We therefore position the UCS on this side.

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We define the origin and the position of
the X, Y and Z axis.

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Now let’s draw a rectangle from this end.

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Measuring 2.5 on X axis and 10.5 on the Y axis.

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We move the rectangle to match the end of this side.

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Now, let’s make a circle.

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The center will be located in the top right corner of the rectangle with the same width as for the rectangle.

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Next, we extrude the rectangle
with a negative value of 20 to obtain these 2 pieces.

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We also perform a subtraction between the fork and the 2 solids.

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We can see: After removing there is a part
missing.

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So, we go back.

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The problem is this rectangle should be longer

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How much more?

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It’s enough that it is longer than the figure which we will cut.

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We could even copy the rectangle to get another one located below.

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We extrude the circle and the 2 rectangles
by a value of -10.

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Now we perform a subtraction
between the fork and the solids that we have created.

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We perform the symmetry from a top view of the fork.

Uniting all parts to make one single solid

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We unite all parts of the fork and handles
into a single solid

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We can also join the two parts of the structure together.

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Now, let’s add the wheels

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For that purpose using “external references”.

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We go to the front view.

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From the insert menu, let’s select ATTACH DRAWING.

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Select the file and click OPEN.

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We specify the insertion point to be 0 in
the 3 axes.

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Because it matches the absolute zero of this drawing is the same as the one where we designed the wheel.

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The scale will be 1 for the 3 axises to maintain the same scale factor.

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As a result, there are no other changes required. Press OK.

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Now, we copy this wheel
and make the necessary adjustments.

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Especially in the structure to make sure it will not touch the rear wheel

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We turn off the layers containing the “saddle” and the supporting structure.

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We found that the structure must have a greater angle in order to not touch the rear wheel.

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Solution?

Use SLICE command fix angles

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Let’s separate the union we have between the two components of the structure.

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For that, we use the SLICE command.

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Select the entity and determine an axis that cuts through 2 points.

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Then with a click we choose the side you want to remove.

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We will further rotate this part.

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For example like this, to make sure that the wheel does not touch anymore.

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Now, we perform a symmetry of the structure

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and we join both sides together.

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We activate the layers that were deactivated before.

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From an isometric view, the model appears nearly
finished.

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To improve the wheel, we will further see
how to add spokes and the axis.

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Have a look at our next videos to learn more.

⇐ WATCH THE PREVIOUS VIDEO: CREATE A TOY – WITH 3D SOLIDS_PART 2

⇒ WATCH THE NEXT VIDEO: CREATE A TOY – WITH 3D SOLIDS_PART 4

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