Inventor Fusion: Sketch

The foundation of 3D modeling is the ability to envision and sketch what you want to create. It takes some time to see 3d objects in dimensions to sketch, see items as basic geometric shapes, see profiles of objects so revolve etc... but with some practice you will be surprised what you can create.

This cool video outlines the Sketching Skills and Techniques you will learn in this unit.

You will watch a series of short video tutorials on Sketching. Be sure you have a Fusion document OPEN and are trying the skills, not just watching the video passively - this is ACTIVE Video Learning :)

For some of the Videos, you will be required to turn in evidence that you have mastered the skill!!

SKETCH VIDEO SERIES

Sketch philosophy and considerations

Watch this video and try the skills demonstrated. You will need to create and turn in a Threaded Bicycle tire, like the one shown in the video. Here is mine below. It requires the use of the "revolve" feature.

YOU WILL BE TURNING IN YOUR BIKE WHEEL

CLICK HERE FOR THE VIDEO TUTORIAL

Creating A Dutch Windmill

Next, just watch the Videos leading up to the Rectangle video. Once you get to the Rectangle Video, create the following:

1. The sketch of the Windmill Blade

(snag a picture to turn in to Google Classroom)

CLICK HERE FOR THE VIDEO FOR THE WINDMILL BLADE

2. Complete the sketch and Extrude the windmill sketch to a complete component. Export this to a .SAT file for Assembly.

3. Using the skills you have now, sketch and create a body for the windmill blade, export that to a .SAT file for Assembly. (tip, the top and body of the windmill might need to be different parts)

4. Create a new file to Assemble the Windmill Blade and the Body into a complete "Dutch Windmill" (see image below)..

Tip: Be sure to use a "revolute" joint when attaching the blade to the body so it will move when animated, you may need to extrude an Axel for this

Turn this into Google Classroom

Using the Pattern Command - Cool & Efficient

To create the air flow holes in your windmill blade, use the pattern feature.

Super cool and saves time. Here is the process to follow:

1. Create a sketch for two Rectangle "extrudes" on the blade, use the 3-point rectangle.

2. "Extrude" the holes with the "cut" feature of extrude.

3. Now use the "Pattern feature: It will want to know the "object" to pattern or repeat, this will be your "extrude" - then chose a line for the "direction".

4. Next you can just pull the pattern arrow in the direction you need and voila..

Now Try The "Circle" pattern and see if you can recreate

all the cuts in one shot........

Tips: Attaching the Blade To The Base

When designing the base of the windmill, consider how you will realistically attach the rotary blade. If you have a curved or cylinder base, it is a good idea to extrude a flat "base" to allow the windmill axle to attach.

To do this you need to use a tangent "work plane" that will enable a flat working surface on a curved surface. (see images below).

Once you add the work plane, then choose "Create Sketch" and create a sketch on the work plane, the proceed as normal.

On the new sketch, create a shape to "extrude" and attach your windmill blade. See sample below with a rectangle and a circular base to then later "join" the blade.

Creating A Movie: QuickTime

Use QuickTime to create a "Screen Recording" of your windmill in action with the blade moving..

Enhancing the Movie: iMovie

Move your video into iMovie so you can add:

1. Some cool background music

2. Intro Title

3. Credits.

You can go to my "sound effect" page to find some background music:

SoundDogs: look for "production music"

MurphSoundEffectsPage

You will turn this short movie clip into Google Classroom

The Sweep Tool

First watch the short tutorials and practice a few of the "sweep" examples so you understand how the tool works before you attempt the coffee mug.

Tips To Understanding

1. The sweep will require sketches on TWO DIFFERENT WORK PLANES

2. The sweep requires a "profile" or shape sketch AND a "path" to follow

Watch this video and practice the examples provided

Here is the Scottish Sweep video as well..

The Coffee Mug

Now use your new skills to create personalized coffee mug... this picture shows how TWO different work planes are required to create the handle.

Think about the direction of the handle, the "profile" is on one plane, but the "handle" is on the other.

To create the center work plane for the handle, it must inteect the center of the MUG

..try this:

1. First, create a Tangent Work Plane on the outside, going 90 degrees intersect with the work plane you created for the "profile" (the circle sketch for the "profile" of the handle)

2. Now create another "work plane" choosing the "off-set" option, this will allow you to move this "work plane" to the center of the MUG, intersecting with the plane you used for the profile and allow you to sketch the "Handle", that will be the "path" of your sweep.

TIP: Use a steph curry style "3-point arc" for the handle... you might have to try it few times to get it right, just like anything else.

Initialize Your Mug

Use a work plane to personalize your Mug with your

Initial. For example, I would use "M" for Murphy