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<h2>7. Computer-Controlled Machining</h2>
</header>
<section>
<h3>Hero shot</h3>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
</section>
<hr>
<section>
<h3>Group assignment</h3>
<p>It's time to get to know the CNC. We have a <a href="https://www.mekanika.io/" target="_blank">Mekanika</a> model.</p>
<span class="image object">
<img src="../images/mekanika-CNC.jpg" alt="..." />
</span>
<p>In order to do that, we've created a simple square part using the machine's various cutting and engraving options:</p>
<ul>
<li>a round hole</li>
<li>a rectangular pocket</li>
<li>a notch with dogbones for nesting</li>
<li>bridges to prevent the part from jumping off the table</li>
</ul>
<h4>Part design</h4>
<p>We used Freecad to create a parametric square part using spreadsheets.</p>
<p>The parameterized parts are :</p>
<ul>
<li>the side of the square</li>
<li>the part thickness</li>
<li>the radius of the fillets</li>
<li>the round hole diameter</li>
<li>the X position of the round hole</li>
<li>the Y position of the round hole</li>
<li>the kerf</li>
<li>the notch length</li>
<li>the notch width </li>
<li>the rectangular pocket length</li>
<li>the rectangular pocket width</li>
<li>the rectangular pocket thickness </li>
<li>the X position of the rectangular pocket</li>
<li>the Y position of the rectangular pocket</li>
</ul>
<h5>Easy part construction</h5>
<p>To avoid drawing the different parts by manually entering each measurement, we've used the symmetry (horizontal, vertical) and constraint (horizontal, vertical, radius, diameter) options.</p>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
<p>The symmetry and constraint steps must be performed one by one to avoid errors.</p>
<p>Once all the parts have been constrained, they are linked to the parametric table.</p>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
<p>An error may occur from time to time. The solution is to remove redundant constraints displayed in the sidebar.</p>
<span class="image object">
<img src="../images/selectioncontrainte.jpg" alt="..." />
</span>
<p>When the part design is ready, all lines and points are green and the message "fully constrained" appears in the sidebar.</p>
<span class="image object">
<img src="../images/objetentierementcontraint.jpg" alt="..." />
</span>
<h5>Preparing the file</h5>
<p>Once the object has been created, we need to prepare the file so that we can start working on the CNC.</p>
<p>To do this, we must first register the various mills and their parameters.</p>
<span class="image object">
<img src="../images/cnc-mills.jpg" alt="..." />
</span>
<h4>Safety</h4>
<h5>...</h5>
<p>
<ul>
<li></li>
</ul>
</p>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
<h5>...</h5>
<p></p>
<h5>Object cut with the CNC</h5>
<p></p>
<span class="object">
<video width="600" height="300" controls>
<source src="../images/cutting-in-progress.mp4" type="video/mp4">
</video>
</span>
<h6>Parameters</h6>
<p></p>
<p>Link to our <a href="https://fabacademy.org/2024/labs/fabc/group-assignment/week007/" target="_blank">Group page</a></p>
</section>
<hr>
<section>
<h3>Individual assignment</h3>
<h4>CNC Project</h4>
<p></p>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
<h5>Design</h5>
<p></p>
<h5>Mill</h5>
<p></p>
<h5>Assemble</h5>
<p></p>
</section>
<hr>
<section>
<h3>My journey</h3>
<p></p>
<span class="image object">
<img src="../images/...jpg" alt="..." />
</span>
</section>
<hr>
<section>
<h3>Files and resources</h3>
<p><strong>My files</strong></p>
<ul>
<li><a href="../files/..." target="_blank">...</a></li>
</ul>
<p><strong>Resources</strong></p>
<ul>
<li><a href="..." target="_blank">...</a></li>
<li><a href="https://fabacademy.org/2024/labs/fabc/" target="_blank">Our group page</a></li>
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<li><a href="../assignments.html">Assignments</a></li>
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<span class="opener">Week per week</span>
<ul>
<li><a href="../assignments/week01.html">1. Project Management</a></li>
<li><a href="../assignments/week02.html">2. Computer Aided Design</a></li>
<li><a href="../assignments/week03.html">3. Computer Controlled Cutting</a></li>
<li><a href="../assignments/week04.html">4. Electronics Production</a></li>
<li><a href="../assignments/week05.html">5. 3D Scanning And Printing</a></li>
<li><a href="../assignments/week06.html">6. Embedded Programming</a></li>
<li><a href="../assignments/week07.html">7. Computer Controlled Machining</a></li>
<li><a href="../assignments/week08.html">8. Electronics Design</a></li>
<li><a href="../assignments/week09.html">9. Molding And Casting</a></li>
<li><a href="../assignments/week10.html">10. Output Devices</a></li>
<li><a href="../assignments/week11.html">11. Mechanical Design And Machine Design</a></li>
<li><a href="../assignments/week12.html">12. Input Devices</a></li>
<li><a href="../assignments/week13.html">13. Networking And Communications</a></li>
<li><a href="../assignments/week14.html">14. Interface And Application Programming</a></li>
<li><a href="../assignments/week15.html">15. Wildcard Week</a></li>
<li><a href="../assignments/week16.html">16. Applications And Implications</a></li>
<li><a href="../assignments/week17.html">17. Invention, Intellectual Property And Income</a></li>
<li><a href="../assignments/week18.html">18. Project Development</a></li>
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