Transcript
The Perfect Coffee Maker
Advisor: Dr. Mishah U. SalmanPartial Sponsor: Air Products
Section: 940Group: 13
Group Members: Danielle Beynon (CAEE)Gabriel Brieva (ECE)Benjamin Scheinberg (MEM) Dianna Vogel (CAEE)
Presentation Outline
Problem Statement - Dianna Coffee System Objective – Dianna Assembly Layout - Gabe Coffee System Overview – Gabe Roaster - Gabe Grinder/ Water Heater – Danielle French Press - Danielle Circuits/Arduino Microcontroller - Ben Summary & Conclusions - Ben Next Steps– Ben Applied Techniques / Skills - Ben 1 of 16
Problem Statement
Problem: Stale beans due to the long period of
time between roasting and brewing Separate coffee making components
further increases length of overall process and consumer inconvenience
Proposed Solution: Create system to shorten time from fresh
beans to coffee 2 of 16
Coffee System Objective
Objective: To integrate and modify off-the-shelf
components through use of hardware programming
Deliverable: Create a 3-in-1 coffee system controlled
by Arduino microcontroller
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Assembly Layout
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Coffee System Overview
1. Beans are roasted for 4 minutes, then poured into grinder after sitting for 24 hours2a. Roasted beans are then ground for 10 seconds; ground beans are then shot into French press2b. The water heater heats the water, dispenses it into the French press3. The water and ground beans sit in French press for four minutes before grounds are separated from newly brewed coffee4. Coffee is poured out of French press through the spigot, and into a cup 5 of 16
Roaster
Input: Fresh green coffee beans
Process: The roaster is mechanized using a pulley system powered by a motor that: Output: Uses a spool to pull down
the top of the roaster until the beans are poured in to the grinder
Goes in reverse to unwind the spool, and return the roaster to its original state
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Grinder and Water Heater
Input: Roasted beans Process: Grinds beans
coarsely Output: Grounds shoot
into French press through pipe
Input: water Process: Heats water
with use of bubble valve
Output: Pours water into French press through tube
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French Press
Inputs: water and coffee grounds
Process: Coffee grounds and water
sit together for 4 minutes Plunger pulley system
activated by DC motor and separates grounds from water
Spigot opened by servo motor and fresh coffee poured into cup
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Electric Circuits and Arduino Microcontroller
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Summary & Conclusions
Mechanically integrated and modified an off-the-shelf popcorn popper, grinder, coffee maker and French press Hardware programming was not
successful Limit switches were not utilized due to
technical difficulty in implementing them in the circuit and design layout
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Next Steps
Study circuits using limit switches Utilize a printed circuit board instead
of a bread board Fix the Arduino microcontroller code
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Applied techniques/skills
Microcontroller programming Electric circuit design/wiring 3-D modeling (AutoCAD, Creo
Parametric) Soldering Gantt charts/project management Mechanical fabrication
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Pictures
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References
[1] Brown, Alton. (2012, May 11). Good Eats S02E08 [Online]. Available: http://www.youtube.com/watch?v=K6XA7lh7P_Y
[2] Hammack, Bill. (2012, Nov. 22). Coffee Maker: Pumping water with no moving parts [Online]. Available :http://www.youtube.com/watch?v=4j4Q_YBRJEI
[3] (2011, Jan. 30). Tutorial 05 for Arduino: Motors and Transistors [Online]. Available:
http://www.youtube.com/watch?v=5bHPKU4ybHY
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Additional support for this project was provided by the Drexel University Freshman Engineering Program and Air Products
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Questions??
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