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					              SolidWorks Lesson Template for Teachers to Contribute

Cover Sheet for Exemplary Lessons/Units Project

Faculty Member Name:_______Dan Benfield_______ Date: __8-15-06_______

School District: _Greenville Technical College___________________________

Teacher’s School email address:

Title of Lesson/Unit: __Problem Solving With Feature Step and Repeat Patterns__

Science, Technology, Engineering and Math) STEM Concepts Addressed:
_____Applying engineering design to solve a real-world manufacturing problem______

Length of instruction period: ___30 minute lecture and 30 minute lab
How many periods needed to implement lesson unit: ____one___

Grade Level(s) for use:
1. Understanding linear patterns (spacing and direction) __________

2. Understanding circular patterns (angles and axis)______________

3. Using above concepts solve real-world problems______________

Materials: _SolidWorks Software_____________________________

Involve students in lecture and demonstration.

Lecture (Part One— engineering background information):
   1. Discussion of materials used in the manufacturing industry.
   2. Since sheet metal is used in the lab exercise, discussion of manufactured
       thicknesses and sizes.
   3. Discussion of cutting as it pertains to optimizing material usage. Drops (left over
       material in inventory) are utilized on future projects.
   4. Discussion of patterns.
Lecture (Part Two—SolidWorks background information):
   1. Discuss feature based geometry versus sketch based geometry.
   2. Emphasize that feature based construction is very much like the actual
       manufacturing process (using stock material and applying cutting techniques).
Lecture (Part Three—Demonstrate linear step and repeat):
   1. Extrude a 6” by 6” plate ½” in depth.
   2. Extrude cut a ½“by ½” square in the upper left hand corner of the plate.
   3. Choose the feature based linear step and repeat command.
   4. Explain the specifications that must be given to create a 2 by 2 pattern using the
       square hole that exists on the plate. Demonstrate how to obtain direction one
       and direction two.
   5. Execute the command to complete the demonstration
Lecture (Part Four—Demonstrate circular step and repeat):
   1. Extrude a 6” diameter disc ½” in depth.
   2. Pick the front plane of the disc and add a vertical center line. Also, place a
      circular center line at a 4” diameter.
   3. Extrude cut a ½” diameter circle at the intersection of the vertical center line and
      the circular center line.
   4. Insert “temporary axis” from the main menu view command
   5. Using the feature based circular step and repeat command add four holes
      equally spaced around the center of the disc by choosing the circle and the
      temporary axis of the disc.

Lab Exercise One (Feature Based Linear Step and Repeat):

You just went to work in a job shop and your first assignment is as follows:
A customer wants 150 pieces of ¼” stainless steel plate cut to a size of 1” x 2”. To cut
this material, you plan to use the laser cutter, which requires that parts be separated by
¼” on all sides and that there is a minimum border of ¼” from the edge of the parts to
the edges of the plate. You find a scrap piece of the correct thickness and decide to see
if you can save some money for the shop by making the parts out of this scrap piece
(called a “drop”) rather than cutting up a new sheet of 4’ x 8’ material. The drop is 24” x
24” in size.

   1. Make a recommendation to your shop supervisor as to if you can use the drop to
      make the required 150 pieces or not.
   2. How many pieces could you make from the sheet if the customer wanted more
      parts for a lower price? (What is the maximum number of parts you can cut from
      the drop?)
   3. Design the pattern of the drop and create a drawing.

Lab Exercise Two (Feature Based Circular Step and Repeat):

Your next job is to design an end plate (cap) to cap off a pipe that has a flange on the
end. The flange is 12” in diameter and has a bolt hole pattern of 8 holes equally spaced
on a 10” DIA. Bolt hole circle. The holes are 1” diameter and both edges are chamfered
.125” x 45 degrees. The end plate should be 1” thick. The edges of the plate should be
chamfered to the same dimensions.

   1. Design the end plate and create a drawing.

Lab Exercise One:
   1. Check the solution to see if the maximum number of holes are left in the drop
Lab Exercise Two:
   1. Check end plate drawing for correct design.

Resources Used:

SolidWorks Software

Copyrighted Materials:

Inside SolidWorks, by David Murray 3rd edition

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