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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Week 6 — Customization & Export for 3D Printing</title>
<style>
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margin-bottom: 6px;
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font-weight: 600;
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/* Tip box */
.tip {
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font-style: italic;
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.video-wrap {
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content: "☐ ";
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align-items: center;
gap: 15px;
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border-top: 3px solid #8A6E57;
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header h1 { font-size: 1.5em; }
section, .teacher-instructions { padding: 22px; }
.activity { padding: 16px; }
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.next-btn, .back-btn {
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</style>
</head>
<body>
<div class="container">
<!-- Header -->
<header>
<div class="week-label">Week 6</div>
<h1>Customization & Export for 3D Printing</h1>
<div class="subtitle">Making it your own and preparing for the printer</div>
</header>
<!-- Welcome -->
<section>
<h2>Welcome Back!</h2>
<div class="welcome">
<p>Your pirate ship is built! Now it's time to make it <strong>yours</strong> — and get it ready for the 3D printer.</p>
<p>This week, you'll add colors and materials to bring your ship to life. You'll explore the <strong>3D Warehouse</strong> to add trees, flags, and other details. Then you'll learn how to <strong>export your model as an STL file</strong> — the file format that 3D printers understand.</p>
<p>By the end of this lesson, you'll have a customized, print-ready pirate ship.</p>
</div>
</section>
<!-- What You'll Learn -->
<section>
<h2>What You'll Learn This Week</h2>
<div class="goal">
<ul>
<li>Apply <strong>materials and colors</strong> creatively</li>
<li>Use the <strong>3D Warehouse</strong> to add models</li>
<li>Export your work as an <strong>STL file</strong> for 3D printing</li>
<li>Understand the <strong>3D printing workflow</strong></li>
</ul>
</div>
</section>
<!-- Activities -->
<section>
<h2>Let's Begin</h2>
<!-- Activity 1 -->
<div class="activity">
<span class="time">10 minutes</span>
<h3>1. Warm-Up: Recap Your Pirate Ship</h3>
<p>Open your Week 5 pirate ship model. Before we customize it, let's make sure everything is ready.</p>
<p><strong>Quick review:</strong></p>
<ol>
<li>Orbit around your ship and check all parts are connected</li>
<li>Verify the hull, deck, cabin, portholes, and plank are all present</li>
<li>Check that the model is a <strong>Solid Group</strong> (right-click → Entity Info)</li>
<li>Fix any remaining gaps or stray lines with the Eraser tool</li>
</ol>
<div class="tip">
A clean model is easier to customize and print. Take a minute to tidy up.
</div>
<div class="warning">
<strong>Reminder:</strong> Save your file with the format <code>week#-studentid-firstname-lastname</code>.
</div>
</div>
<!-- Activity 2 -->
<div class="activity">
<span class="time">20 minutes</span>
<h3>2. Materials & Colors: Customize the Ship</h3>
<p>Materials are what make your model look real. A pirate ship can be wood, metal, and cloth — all made from simple color choices.</p>
<p><strong>Step 1: Open the Materials panel</strong></p>
<div class="step">
<ul>
<li>Look for the <strong>Materials</strong> panel on the right side of the screen</li>
<li>Click the dropdown to see categories: Colors, Groundcover, Landscaping, Wood, Metal, etc.</li>
</ul>
</div>
<p><strong>Step 2: Paint the hull (wood)</strong></p>
<div class="step">
<ul>
<li>Choose a <strong>Wood</strong> material — dark brown looks classic</li>
<li>Click the outer hull surfaces to apply it</li>
<li>Try a lighter wood for the inner hull to add contrast</li>
</ul>
</div>
<p><strong>Step 3: Paint the deck</strong></p>
<div class="step">
<ul>
<li>Choose a light wood color for the deck</li>
<li>Click the deck surface to apply it</li>
<li>This makes the deck stand out from the hull</li>
</ul>
</div>
<p><strong>Step 4: Paint the cabin</strong></p>
<div class="step">
<ul>
<li>Pick a contrasting wood color for the cabin</li>
<li>Try a red or dark brown roof</li>
<li>Add a metal door handle or window frame if you like</li>
</ul>
</div>
<p><strong>Step 5: Paint the plank and details</strong></p>
<div class="step">
<ul>
<li>Use a lighter wood for the plank</li>
<li>Add a metal look to any ship parts like cannons or wheels</li>
</ul>
</div>
<div class="tip">
<strong>Make it your own.</strong> Try a black hull for a "Black Pearl" look, or a bright blue for a fantasy ship. There are no wrong colors on a pirate ship!
</div>
</div>
<!-- Activity 3 -->
<div class="activity">
<span class="time">15 minutes</span>
<h3>3. 3D Warehouse: Add Details</h3>
<p>The 3D Warehouse is a library of free models you can drop into your project. You can add trees, flags, animals, or even pirates!</p>
<p><strong>Step 1: Open the 3D Warehouse</strong></p>
<div class="step">
<ul>
<li>Look for the <strong>3D Warehouse</strong> panel on the right side</li>
<li>Or go to <strong>File → 3D Warehouse → Get Models</strong></li>
</ul>
</div>
<p><strong>Step 2: Search for a model</strong></p>
<div class="step">
<ul>
<li>Type what you want in the search bar — like "pirate flag"</li>
<li>Browse the results</li>
<li>Click on a model to preview it</li>
</ul>
</div>
<p><strong>Step 3: Add it to your model</strong></p>
<div class="step">
<ul>
<li>Click <strong>Download</strong> or <strong>Insert</strong></li>
<li>The model appears in your SketchUp file</li>
<li>Use the <strong>Move</strong> tool to position it</li>
<li>Use the <strong>Scale</strong> tool (S) to make it the right size</li>
</ul>
</div>
<p><strong>Ideas for your pirate ship:</strong></p>
<ul>
<li>A pirate flag on top of the cabin</li>
<li>A ship's wheel on the deck</li>
<li>Barrels or crates on the deck</li>
<li>A treasure chest</li>
<li>A parrot or sea creature</li>
</ul>
<div class="warning">
<strong>Careful with size:</strong> Models from the 3D Warehouse come in all sizes. Use the Scale tool (S) to fit them to your ship. A flag should be small — not bigger than your cabin!
</div>
</div>
<!-- Activity 4 -->
<div class="activity">
<span class="time">20 minutes</span>
<h3>4. Export as STL File</h3>
<p>STL is the file format that 3D printers use. It stands for "Standard Triangle Language" — it breaks your model into triangles that the printer can read.</p>
<p><strong>Step 1: Select and group your model</strong></p>
<div class="step">
<ul>
<li>Use the <strong>Select</strong> tool to drag a box around everything</li>
<li>Right-click → <strong>Group</strong></li>
<li>Check that it's a Solid Group in Entity Info</li>
</ul>
</div>
<p><strong>Step 2: Export as STL</strong></p>
<div class="step">
<ul>
<li>Go to <strong>File → Export → 3D Model</strong></li>
<li>In the file type dropdown, select <strong>STL</strong></li>
<li>Name your file: <code>week6-studentid-firstname-lastname.stl</code></li>
<li>Click <strong>Export</strong></li>
<li>Save to your Google Drive or downloads folder</li>
</ul>
</div>
<p><strong>Step 3: Check the STL file</strong></p>
<div class="step">
<ul>
<li>Locate the file you just saved</li>
<li>Check that it ends with <code>.stl</code></li>
<li>Note the file size — usually a few MB</li>
</ul>
</div>
<div class="tip">
<strong>Export options:</strong> SketchUp lets you choose the STL format (ASCII or Binary). Binary is smaller and prints faster — use Binary if given the choice.
</div>
<div class="warning">
<strong>If it won't export:</strong> Make sure your model is a Solid Group. Non-solid models can't be exported as STL.
</div>
</div>
<!-- Activity 5 -->
<div class="activity">
<span class="time">20 minutes</span>
<h3>5. Open STL in a Slicer (Cura or PrusaSlicer)</h3>
<p>A <strong>slicer</strong> is software that prepares your model for the printer. It slices your 3D model into thin layers and creates the instructions the printer follows.</p>
<p><strong>Step 1: Open your slicer</strong></p>
<div class="step">
<ul>
<li>Open <strong>Cura</strong> or <strong>PrusaSlicer</strong> on your computer</li>
<li>If not installed, ask your teacher for the class computer</li>
</ul>
</div>
<p><strong>Step 2: Import your STL</strong></p>
<div class="step">
<ul>
<li>Click <strong>File → Open File</strong></li>
<li>Select your <code>.stl</code> file</li>
<li>Your pirate ship appears on the virtual print bed</li>
</ul>
</div>
<p><strong>Step 3: Explore the preview</strong></p>
<div class="step">
<ul>
<li>Click the <strong>Preview</strong> tab</li>
<li>Drag the layer slider on the right side</li>
<li>Watch as your ship is sliced into hundreds of thin layers</li>
<li>Each layer is one pass of the printer</li>
</ul>
</div>
<p><strong>Step 4: Check the estimated print time</strong></p>
<div class="step">
<ul>
<li>Look at the bottom of the screen</li>
<li>It shows print time and material usage</li>
<li>A small pirate ship might take 2–6 hours to print</li>
</ul>
</div>
<div class="tip">
<strong>Play with the slicer.</strong> Try rotating your model, scaling it up or down, and see how the print time changes.
</div>
</div>
<!-- Activity 6 -->
<div class="activity">
<span class="time">15 minutes</span>
<h3>6. Discuss: Printability, Wall Thickness, Overhangs</h3>
<p>Not every model can be printed. Some designs have features that are too thin, too tall, or too complex. Let's talk about what makes a model printable.</p>
<p><strong>Wall thickness</strong></p>
<ul>
<li>Walls that are too thin (less than 1mm) may break or print poorly</li>
<li>Aim for walls at least <strong>1.2mm</strong> thick</li>
<li>Your portholes should have thick walls around them</li>
</ul>
<p><strong>Overhangs</strong></p>
<ul>
<li>An overhang is any part that sticks out into empty air</li>
<li>Small overhangs are okay — the printer can handle them</li>
<li>Big overhangs need <strong>supports</strong> (extra material printed underneath)</li>
<li>The slicer adds supports automatically if needed</li>
</ul>
<p><strong>Bridges</strong></p>
<ul>
<li>A bridge is a flat surface printed between two supports</li>
<li>Short bridges print fine — long bridges may sag</li>
</ul>
<p><strong>Scale</strong></p>
<ul>
<li>Your ship needs to fit on the printer's bed (usually 20cm × 20cm)</li>
<li>Use the slicer to scale down if needed</li>
</ul>
<p><strong>Class discussion questions:</strong></p>
<ol>
<li>Where are the overhangs on your pirate ship?</li>
<li>Which parts are the thinnest?</li>
<li>Will the printer need supports? Where?</li>
<li>Does your ship need to be scaled down?</li>
</ol>
<div class="tip">
<strong>Real engineers think about this too.</strong> Designing for 3D printing is a skill — every printable object went through the same thinking you're doing now.
</div>
<p><strong>Save your work:</strong></p>
<ol>
<li>Click the model name at the top</li>
<li>Rename it: <code>week6-studentid-firstname-lastname</code></li>
<li>Click <strong>Save</strong></li>
<li>Also save your STL file with the same name</li>
</ol>
</div>
</section>
<!-- Check Yourself -->
<section>
<h2>Check Yourself</h2>
<p>Before you finish, make sure you can do all of these:</p>
<div class="check">
<ul>
<li>I applied materials and colors to my pirate ship</li>
<li>I added at least one model from the 3D Warehouse</li>
<li>I exported my model as an STL file</li>
<li>I opened my STL in a slicer</li>
<li>I saw the layer-by-layer preview</li>
<li>I understand what overhangs and supports are</li>
<li>I saved both my SketchUp file and my STL file</li>
</ul>
</div>
</section>
<!-- Key Terms -->
<section>
<h2>Key Words to Remember</h2>
<table>
<tr>
<th>Term</th>
<th>What It Means</th>
</tr>
<tr><td>STL</td><td>The file format that 3D printers use — models are broken into triangles</td></tr>
<tr><td>Slicer</td><td>Software that turns a 3D model into printer instructions by cutting it into layers</td></tr>
<tr><td>Layer</td><td>One thin horizontal slice of a 3D model — the printer prints one layer at a time</td></tr>
<tr><td>Wall Thickness</td><td>How thick the walls of a model are — thin walls may break or print poorly</td></tr>
<tr><td>Overhang</td><td>Any part of a model that sticks out into empty air</td></tr>
<tr><td>Support</td><td>Extra material printed under an overhang to hold it up during printing</td></tr>
</table>
</section>
<!-- Quick Check -->
<section>
<h2>Quick Check</h2>
<p>Answer these in your head or on paper:</p>
<ol>
<li>What does STL stand for, and why does it matter?</li>
<li>What does a slicer do?</li>
<li>What's an overhang, and when do you need supports?</li>
<li>How thick should walls be for 3D printing?</li>
</ol>
</section>
<!-- Homework -->
<section>
<h2>Optional Homework</h2>
<ul>
<li>Take a photo or screenshot of your sliced model showing the layers</li>
<li>Write 2–3 sentences about what you'd change if you printed it again</li>
<li>Think about what you'd design for Week 7's real-life project</li>
</ul>
</section>
<!-- Next Week -->
<section>
<h2>Coming Next Week</h2>
<p><strong>Week 7: Design Your Own Real-Life Product</strong> — You'll apply everything you've learned to design and model your own product that solves a real problem.</p>
</section>
<!-- Teacher Instructions -->
<div class="teacher-instructions">
<h2>Teacher Instructions</h2>
<ol>
<li>Verify each student still has their Week 5 pirate ship saved in Google Drive.</li>
<li>Review solid groups and the Entity Info panel quickly.</li>
<li>Demonstrate how to open and use the Materials panel.</li>
<li>Show how to apply materials to different parts of the ship.</li>
<li>Demonstrate searching and downloading models from the 3D Warehouse.</li>
<li>Show how to use Move and Scale to position downloaded models.</li>
<li>Demonstrate File → Export → 3D Model → STL.</li>
<li>Ensure each student successfully exports an STL file.</li>
<li>Open Cura or PrusaSlicer and demonstrate importing an STL.</li>
<li>Show the layer preview and explain how slicing works.</li>
<li>Discuss print time, supports, and scaling.</li>
<li>Lead a short class discussion about printability.</li>
<li>Verify each student saves both the SketchUp file and the STL file.</li>
<li>Note which students need extra support in Week 7.</li>
</ol>
</div>
<!-- Navigation -->
<div class="nav-buttons">
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