Autodesk Inventor Professional 2017 Basics
Hampton Christian Academy

The videos below are for instructional purposes and are not to be distributed to others. I have saved most of the videos onto your computer. If you look on the C drive and in the folder HCHS, you will find higher quality videos that what you download from this webpage.

Assignments

Sixthteen Week Overview, December 12-16

Assignments due from previous weeks!!!

1. Gears, (Due Wednesday, December 7)



Assignments due this weeks!!!

1. Planetary Gear System (Due Tuesday, December 13)
2. Descriptive Geometry Test (Due Wednesday, December 14)

This is not a difficult test and you should easily complete this in one day.


Planetary Gear System Assignment (Due Tuesday, December 13)

12 and 18T Gears
48T Ring Gear
PGS Carrier
Planetary Gear System
Planetary Gear iAssembly
The Planetary Gear System is a very unique and robust gear system that is used in Automatic Transmissions of cars, small portable tools like 18 Volt Drill and many other applications. We will use a different diametrical pitch for this, so the first video explains how to make this minor change to the gear you have already created. The second gear is a ring gear, which means the teeth are on the inside instead of the outside. So we will use a simplified method to make this gear. The third video will make a carrier or base in which the gears will be assembled. The fourth video will put all the gears together and begin to make the proper animations. The last video will create an iAssembly. Similarly to an iPart, it will use the spreadsheet to create different scenarios.



Descriptive Geometry Test, (Due Wednesday, December 14)

Descriptive Geometry Files
This test is similar to the practice test you took earlier. You are free to review the videos from the practice test and to use the word document help file, but you must work by yourself. When you download and extract the zipped file, you will find 3 files. A spreadsheet that contains the questions and a place to enter the answers. You will also find a drawing file (.idw) where you will create the views you need to get the answers. You will also have a part file that has four sides labeled A, B, C, and D. A top view labeled T and a bottom view with no letter. Please turn in the Spreadsheet and the Drawing file only.

The first three questions ask for the angle between A and B and two lengths related to surface A. The first sheet will be used to answer these questions. So you will have to create a front view, than an auxiliary view perpendicular to line AB. Then you will need to create a second auxiliary view parallel to line AB in the first auxiliary view. There you will find the true angle. Then you will have to create a 3rd auxiliary view form the edge A in the 2nd auxiliary view. This will give you the true shape of surface A. The lengths for questions 2 and 3 can be determined from this view.

You will repeat this for each of the sheets. The last 5 questions have a sheet of their own.


Exam Review
Sample Exam Problem

Due Friday, December 16 - I have provided a sample exam. You will need to design the part and to create the drawings to match the picture. I will also provide you some checks to make sure you are doing it right. This will not be so on the exam. When you look at the picture, you will find requirements for the exam as well.

1. All sketches are dimensionally correct.
2. All sketches are black (fully constrained)
3. That you make extensive use of the symmetry and tangent constraints.
4. When I go to the home view, it looks exactly like the isometric view in the picture.
5. You must apply a material. The choice is yours.


1. You will need to make 2 extrusions to get the body of the model built. All holes must use a hole feature. After you have created the first extrusion, Go to the home view and make sure it is in the same orientation as the picture. Check the volume. Right click on the name in the browser and go to iproperties and to the Physical tab. The volume should be 4.527 in^3. Sketch 1 should have only 3 dimensions. If you have more than that, you are not making good use of the symmetry and tangent constraints.

2. For the second extrusion, you should not need any dimensions in the sketch to fully constrain it. When you check the volume you should find that it is 11.891 in^3

3. The large hole in the center should be a counterbore hole. Since it is concentric, you do not need a sketch. The volume at this point should be 8.013 in^3

4. You will have to create a sketch to make the next two counterbore holes. Yes, they could be done individually, but that would require two holes features. Since they are the same size, it is better to use a sketch and make it only one feature. The volume at this point should be 7.848 in^3

5. You can now create the fillets. All the elements can be selected at one time, so you only need one feature. The volume at this point should be 7.837 in^3

6. The last feature is the hole in the side of the cylinder. If you look at the right view in the picture, you will see clearly that the hole does not go all the way through. You could create a plane or sketch from the middle. The volume at this point should be 7.780 in^3. This should finish the model

7. The last part of the exam is to create the drawing file. It should look exactly as the picture. The base view in this situation is the top view. Then you would need to create a section view to the left. If you do not remember how to do this, then you can go back to the video for the oil pump, when you made a section view for the cross beam. Another base view using the current view (providing you have the model in the home view) will create the isometric view.

8. On the annotation tab, you can place all the center lines and the dimensions. Again, if you do not remember how to change the color of the text, you can go back to the videos from the oil pump drawing files




1. Exam (due at the end of your exam time)

I have provided two pictures or two options. You can choose either one, whichever you prefer.

Exam Option 1
Exam Option 2
Due due at the end of your exam time - The requirements for each model is stated on the picture. You are to work individually. When you finish, you must turn in the part file and the drawing file.

1. All sketches are dimensionally correct.
2. All sketches are black (fully constrained)
3. That you make use of the symmetry constraint.
4. When I go to the home view, it looks exactly like the isometric view in the picture.
5. You must apply a material. The choice is yours.
6. The drawing file (.idw) file must look exactly like the picture provided.
7. Turn in BOTH files, the part (.ipt) and the drawing (.idw)



If you finish the assignments for this week, please take the extra time to work on your Lego Project. This is important to take some time each week to develop the project. If you have problems with a particular part or assembly, you can ask for help. If you wait until the last few weeks, you will not be able to get a lot of assistance, simply because time is short.

 
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