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sprint2.html
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<!DOCTYPE HTML>
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<html>
<head>
<title>Sprint 2</title>
<meta charset="utf-8" />
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<body class="left-sidebar">
<div id="page-wrapper">
<!-- Header -->
<header id="header">
<h1 id="logo"><a href="index.html">PoE Fall 2016 <span>Section 2</span></a></h1>
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<ul>
<li class="current"><a href="index.html">Home</a></li>
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About
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<li><a href="team.html">The Team</a></li>
<li><a href="project-story.html">The Story</a></li>
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<a href="implementation-landing.html">Implementation</a>
<ul>
<li><a href="sprint1.html">Sprint 1</a></li>
<li><a href="sprint2.html">Sprint 2</a></li>
<li><a href="sprint3.html">Sprint 3</a></li>
<li><a href="sprint4.html">Sprint 4</a></li>
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<a href="systems.html">Systems</a>
<ul>
<li><a href="electrical.html">Electrical</a></li>
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<h2>Sprint <strong>2</strong></h2>
<p>Validating our pressure system mathematically</p>
<p></p>
</header>
<!-- One -->
<section class="wrapper style4 container">
<div class="row 150%">
<div class="4u 12u(narrower)">
<!-- Sidebar -->
<div class="sidebar">
<section>
<header>
<h3>Sprint Goals</h3>
</header>
<p>
<ul type="circle">
<li>Have a firmer understanding of water math</li>
<li>Design and test nozzles</li>
<li>Create a laminar flow</li>
<li>Create a laminar flow</li>
<li>Have a more specific design for water collection and distribution</li>
<li>Initial website design</li>
<li>Figure out which options are best for controlling multiple valves</li>
</ul>
</p>
</section>
<section>
<a href="#" class="image featured"><img src="images/pic03.jpg" alt="" /></a>
<header>
<h3>Updated MVP</h3>
</header>
<p>Have an automated curtain of water that displays a variety of images and designs controlled using a microcontroller, and successfully collects and recycles water to be self-sustaining. More specifically, the scale of our MVP is 4 nozzles, printing simple designs, but functioning well!</p>
</section>
</div>
</div>
<div class="8u 12u(narrower) important(narrower)">
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<section>
<a href="#" class="image featured"><img src="images/pic02.jpg" alt="" /></a>
<header>
<h3>Prototype of water distribution system</h3>
</header>
<p>This sprint, we figured out the physics of water, such as how wide our pipes need to be given the size of our nozzles, how tall our water supply needs to be in order to obtain the amount of water pressure we need for water to flow through our nozzles at an aesthetically pleasing rate, and how much loss occurs across the long pipe. This helped us make a series of design decisions, such as what kind of pipe to purchase and how large our system needs to be. We were able to use this information to build a prototype of our water distribution system. </p>
<p>We also prototyped a water distribution system with one nozzle. This included a 3-D printed nozzle. We printed two nozzles- one printed on the Mark Forged printer, and the other on the Stratasys. This helped us decide how we would be printing our nozzles. We decided to primarily utilize the Stratasys because it can be printed much faster than the Mark Forged and is reasonably waterproof.</p>
<p>We also proved that we have control over our system but manually inputting patterns into our arduino, which can be seen in the videos below:</p>
<video width="320" height="240" controls>
<source src="images/Use1.mp4" type="video/mp4">
</video>
<video width="320" height="240" controls>
<source src="images/Use2.mp4" type="video/mp4">
</video>
<video width="320" height="240" controls>
<source src="images/Use3.mp4" type="video/mp4">
</video>
<p> </p>
<p>
We also were able to write a program where we modeled a stream of water and a series of nozzles in order to try to visualize the timing of our images and nozzles using python in order to visualize the water falling out of streams.
</p>
<header>
<h3>Lessons Learned</h3>
</header>
<p>Looking back on this sprint, we felt that we could've been more effective during sprint 3 if we had done more of the math and simulating during sprint 2 rather than during sprint 3. At the time, we didn't feel as though we could make as much progress during sprint 2 under the excuse that we didn't have the parts. In reality, we probably could've done much more that didn't involve those parts. We also learned how to recover from a broken prototype and have an overall fairly successful sprint review despite this.</p>
</section>
</div>
</div>
</div>
</section>
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<div class="4u 12u(narrower)">
<section>
<header>
<h3>Mechanical Progress</h3>
</header>
<p>We built a working prototype of our distribution system, even though it broke the night before the sprint review. This was very validating in terms of getting our final system working based off of this design.</p>
</section>
</div>
<div class="4u 12u(narrower)">
<section>
<header>
<h3>Electrical Progress</h3>
</header>
<p>There was not substantial electrical progress made this sprint.</p>
</section>
</div>
<div class="4u 12u(narrower)">
<section>
<header>
<h3>Software Progress</h3>
</header>
<p>This sprint we wrote a program that helped us visualize our stream of water. Ultimately this was helpful for figuring out the timing of multiple streams of water.</p>
</section>
</div>
</div>
</section>
</article>
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