1. Lesson 4/4 Lesson Objective: To manufacture a product of quality. Be able to test and prove a product has been made to the right tolerance. Write a detailed evaluation about your product to identify improvements. Brought to you by the 3D Systems education team

2. LESSON 04

3. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd Lesson objectives >> To manufacture a product of quality. >> Be able to test and prove a product has been made to the right tolerance. >> Write a detailed evaluation about your product to identify improvements.

4. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd What makes 3D printing such a “game changing” manufacturing process?

5. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd To manufacture a product of quality. It is now time to employ some CAM (computer aided manufacture). You are going to rapid prototype, 3D print, your product idea. You are going to slice the product into layers using Cube software, then using a USB pen, put the file onto the printer and print it out. Reminder: you must apply some CubeStick to the glass plate so that your part will stick.

6. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd Be able to test and prove a product has been made to the right tolerance. Tolerance is the term relating to the level of accuracy a product is made to. Often measuring in millimetre amounts, they are described in percentages. E.g. if a product has a tolerance of 10% (which is a relatively low tolerance), and the measured product was meant to be 100mm, it could be as much at 110mm or as little as 90mm in length, and still meet tolerance requirements. Task: How has your product been made out of tolerance? Consider the fit into your pocket as a general outer size check. Consider the fit of the 3mm jack into a hole as your more specific tolerance check. Conduct checks on both, and try to work out how much your product is out, and try to apply a percentage amount to it. Above printed +10%, Bottom printed to scale

7. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd Write a detailed evaluation about your product to identify improvements. With your finished product in your hand, your final task is to evaluate the product. Task 1: Does it work? Carry out a test in use by wrapping your headphones around it, putting it in your pocket, unravelling the cable, using any features you designed into it, and see if it truly meets your needs? Task 2: Do others think it works? Ask others to conduct matching assessment strategies on your product. Observe and record these yourself. Testing: Top Left: the headphones around the product as in use. Top Right: The 3mm jack holder. Bottom Left: The ear buds in place. Bottom Right: The cable wrapped around the middle. Could all of these have been better? How?

8. © 2012 Autodesk Copyright @2014 3D Systems Ltd & Teach Design Ltd How well have you met the lesson objectives? Plenary To manufacture a product of quality. Be able to test and prove a product has been made to the right tolerance. Write a detailed evaluation about your product to identify improvements. What are the qualities and features of 3D printed parts? What tests were most useful? Which provide quantative data and which provide qualitative? What were the improvements you identified?

9. © 2012 Autodesk