Midterm Practice

For the next two classes, I want you to finish up anything you have not turned in yet (come up and check the grade book).  Once you are all finished, try out some of the following as a review for the midterm.

Midterm:
For the midterm, you will have to draw a 3D object in cad, create the othogonal views (base view) on a layout with your titleblock (bring in a copy of your titleblock), and dimension it.  There will be no step-by-step instructions, just the dimensions to help you draw it. 


Practice #1
Create the 3D object from the below views.  Use Viewbase to show the three below views, with a 3D view in the upper right hand corner.  Dimension all of your work, and use your title block.

Practice #2
Create the 3D object from the below views.  Use Viewbase to show the three below views, with a 3D view in the upper right hand corner.  Dimension all of your work, and use your title block.

Practice #3:
The following is a little harder than what I will have you do, it's a good exercise to remind you of some of the drawing commands though. 


Draw a guitar:

Start by drawing circles and ellipses along a center line as shown.  Use the trim command to create the final shape. 




Add two horizontal lines to the ends:




MOVE the guitar to be centered on the y axis, then use the MIRROR command.



Move everything down to 0,0
Draw "17" center line, then center "1.5" line, then eyeball sides of the neck.  Make copies of the shown components, and move them to the side.




Extrude body 3 tall.
Use "SHELL" to make body hollow
PRESSPULL out the sound hole.





For the bridge and saddle,
Saddle: 4.5 by 1.5 by .8 tall,
Bridge: 4.5 by .5 by 1.2 tall.
Fillet edge .2
lower into guitar .3




Create a one inch tall block from the bottom of the neck:





Extrude 3, and .7, attach and center to guitar.

Extrude .3, add to top:



Extrude a .4 by .7 triangle

Extend top (Presspull)

Presspull out .4

Create 1.3 by 3.3 rectangles, orient with end.

Presspull


Fillet r = .2




Move UCS to FACE of guitar head, at the corner.
draw 6 circles for the tuning pegs, r=.15, draw 3, use the mirror command



Extrude .4

Make the frets, 2 lines, offset .2.

Trim, extrude .15, move.

Add strings, play around with the colors, done!