Engineering Design project 2

1. Engineering Design project 2 Min En Zheng, Jonathan Baer, Dan Hartig, Joe Spinelli, Alex Konczylo EDSGN 100: Introduction to Engineering Design Instructor: Xinli Wu

2. Xerox – iGen4 Press • New generation printer that prints 110 pages per minute • Picture resolution at 600 x 4800 dpi • Consistent, high definition color image qualities • Printing books, posters and high quality photos

3. Paper Velocity • Nominal Velocity • Accurate for simple control but variables affects nominal velocity • Nominal velocity ≠ actual velocity • Variables • Thickness, glossy cover, different drive roll speed and diameter • Actual velocity • More precise control on paper path • Print photos at micron tolerance

4. MA 520 *Crank is for demonstration purposes only; the final product should be running on electricity.

5. Calculating Velocity • Velocity is a vector that describes the speed in a given direction • v(t) = velocity at time t v(t) = dx/dt x(t) = position at time t v = ∆x/∆t ∆= change in • No acceleration • Constant velocity • Distance paper has traveled = ∆x • Time elapsed = ∆t

6. Our method…… • Components needed to calculate velocity (distance and time) • Sensors would be inserted to start and stop time as the paper passes through the censors • Sensors would have a set distance apart for constant distance.

7. Drive Rolls The drive rolls would allow the paper to pass with a certain velocity (approximate drive roll velocity)

8. Guide path (Baffle) The paper then travels on the guided path (baffle) to ensure that the paper passes through the other set of drive rolls.

9. Laser Sensor The laser sensor times the moment when the paper reaches the sensor and stops the timing as the paper hits the second laser sensor.

10. Prototype

11. Demonstration

12. What’s the difference? • Drive roll speed vs. actual speed (MA 520) • Control paper path with micron tolerance • Variables could be avoided • Better overall photo quality

13. Sponsor

14. THANK YOU