Develop Solution

1.) Use CAD Software to Design Your 3D-Printed Base

Create a new part file
Design a base that meets size requirements
- - 3" width x 3" depth maximum
  - 1.5" Height mandatory
  - Base walls should be .1" thick
  - Base does NOT need to be a square!
Make sure your base has a 1/8" slot for the acrylic in the top
- - Add .005" tolerance to the width of the acrylic slot for a friction fit
The base should have a .5" hole for the LED, with supports that friction fit holds the LED inside the base
Create drawing file
- - As shown to the left - dimension height, width & depth
  - Front (bottom), section view and isometric view

LED Image Save.webm

2.) Import and Dimension Image for Acrylic Design

Find a usable image from the internet
- - Use the snip tool to crop and save your image
    - Screenshot as close to the image as possible
  - Your image will be saved in Pictures < Screenshots
  - Copy and paste your image to your H:Drive < LED Sign Folder
Create a new part file
Start a 2D Sketch and import the image using the image tool from the ribbon
- - If you do not see the image in your H:Drive, make sure the image you saved was a JPEG
Dimension the longest side of your image to meet constraints
- - Acrylic maximum size is 4" x 4"
Finish Sketch

3.) Trace Outline of Acrylic

Create a new sketch
- - MAKE SURE YOU ARE NOT SKETCHING ON THE SAME SKETCH AS YOUR IMAGE
Use 2D sketch tools to draw the outline of your desired acrylic shape to be cut
- - This outline should just be the perimeter of your desired cut
  - Leave space between this outline and where your details will be
  - Be sure to include .25" of material to fit into the base
  - Include a hole/arc to fit your LED
Finish Sketch
You should still be able to see your image
- - If your sketch disappeared, you drew your outline on the same sketch as your image, they need to be two different sketches

4.) Trace Acrylic Details

Create a new sketch on the top side of your image
Use 2D sketch tools to trace detail lines from your image
- - These lines will be engraved into your acrylic (not cut)
Finish Sketch
Hide the visibility of your image by right-clicking on the sketch and deselecting visibility
Save this file as "Acrylic Design" in your H:Drive < LED Sign Folder

5.) Create Acrylic Laser Drawing Sheet

Create a new drawing sheet
- - Edit sheet size to B
  - Delete the title block and boarder so you are left with a blank sheet
Place your Acrylic Design file in the correct view
- - Scale should be 1:1
You need to change the color of the outline that you want cut to red
- - Select lines by clicking on them (hold ctrl to select multiple lines at once)
  - With the lines selected, right click, select properties
- Save the .dwg file to your LED Sign Folder
- Export a .PDF to your LED Sign Folder

FINISHED YODA.pdf

6.) Create LED Sign Sheet Set

Your LED Sign Sheet Set should include the following sheets:

LED Sign Base
LED Sign Acrylic
LED
Assembly

*Your LED Sign Base sheet should have been completed already. Open that file and add three more sheets to it.

Acrylic - Extrude your acrylic part file .125". Dimension your acrylic extrusion in a drawing sheet, include all needed dimensions.

Designing the LED - Use the drawing sheet information to make your LED to the best of your ability

Assembly - Create an assembly using the mate and flush constraints. Your assembly sheet should contain two different views of your assembly, balloons, and a parts list.

Export a PDF and upload to Google Classroom

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