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<li><a href="week7_ccm.html"><b>Mar 10:</b> computer controlled machining</a></li>
<li><a href="week8_emb_programming.html"><b>Mar 17:</b> embedded programming</a></li>
<li><a href="week9_mechanical_design.html"><b>Mar 24:</b> mechanical design</a></li>
<li><a href="week10_Input_devices.html"><b>Apr 07:</b> Input Devices</a></li>
<li><a href="week11_Molding.html"><b>Apr 14:</b> Molding and Casting</a></li>
<li><a href="week12_output_devices.html"><b>Apr 21:</b> Output Devices</a></li>
</ul>
</div>
......
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<!-- Page Header -->
<!-- Set your background image for this header on the line below. -->
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<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<div class="post-heading">
<h1>Input devices</h1>
<h2 class="subheading">
Week 10</h2>
</div>
</div>
</div>
</div>
</header>
<!-- Post Content -->
<article>
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<header>
<h2>Input devices</h2>
<blockquote>
<p><b>Group assignment</b></p>
<ul>
<li>Probe an input device's analog levels and digital signals</li>
</ul>
</blockquote>
</header>
<hr />
<h3>End Stops Limit Switches</h3>
<P>End-stops can also be used as limit switches which prevent the machine from attempting to move beyond the physical limits of the
axis (by pausing/stopping movement when triggered), see the Endstops page for details about configuring Smoothie to use End Stops as limit switches.
</p> <br>
<span class="image"><img src="img/w9/41C+hBnFSwL.jpg" alt="" height="200"/></span></p><br>
The cnc shield offers us the necessary pins to connect our end switches but if we need to install more we could make a parallel connection
<span class="image"><img src="img/w9/end_Switches.jpg" alt="" height="400"/></span></p><br>
Connections for Arduino Mega</p><br>
<span class="image"><img src="img/w9/Grbl_Pines_arduino 2560.jpg" alt="" height="400"/></span></p>
<span class="image"><img src="img/w9/Grbl_Pines.jpg" alt="" height="600"/></span></p>
In this link you can download the GRLB cnc controller code<a href=" https://github.com/grbl/grbl" target="_Blank"> Download</a></p>
we can find the pins in each case in the GRBL file gcode_h</p>
<span class="image"><img src="img/w9/pines_grbl.jpg" alt="" height="600"/></span></p><br>
<h3>Component printing</h3>
<h4>Dremel stand</h4>
<span class="image"><img src="img/w9/imp1.jpg" alt="" height="210"/></span>
<span class="image"><img src="img/w9/imp2.jpg" alt="" height="210"/></span></p>
<h3>Improving the design</h3>
<span class="image"><img src="img/w9/imp4.jpeg" alt="" height="210"/></span>
<span class="image"><img src="img/w9/imp3.jpg" alt="" height="210"/></span></p>
<br>
</p>
</div>
<hr>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<header>
<h2>Machine Design</h2>
<blockquote>
<p><b>Group assignment</b></p>
<ul>
<li> actuate and automate your machine</li>
<li> document the group project and your individual contribution</li>
</ul>
</blockquote>
</header>
<hr />
<h3>Using Raspberry Pi</h3>
<P>Raspberry Pi, is a "it's a credit card size computer that connects to your TV and a keyboard." It is a board that
supports various components necessary in a common computer. ... These ports allow you to connect the minicomputer
to other devices, keyboards, mice, and displays <br>
</p>
<span class="image"><img src="img/w9/Raspberry-Pi.jpg" alt="" height="500"/></span>
<h3>installing operating system</h3></p>
<p style=text-align:justify;>To install the operating system on our Raspberry we will use Raspberry Pi Imager that we can download from the following link
<a href="https://www.raspberrypi.org/software/" target="_Blank"> Raspberry Pi Imager</a> Once we download and install it, we can choose the operating
system that we want to install. this will be installed in a micro usb memory
</p>
For this assignment we will install the 32-bit Raspberry Pi Os which is a linux-based operating system</p>
<br>
<span class="image"><img src="img/w9/imager.jpg" alt="" height="400"/></span>
</p>
<br>
<span class="image"><img src="img/w9/rasp_desk.jpg" /></span></p>
<br>
<p>
Once the installation is finished, it is necessary that our Raspberry has an internet connection, this can be by cable or through WiFi
</p>
To control the cnc we will use an arduino in conjunction with a cnc shield, the problem with this is that we cannot send large files, so
we will use the Raspberry, for this we will install the Bcnc software, doing the following steps, remember we are in linux</p>
<br>
<h3>Installation (using pip = recommended!)</h3>
This is short overview of installation proces, for more see the bCNC installation wiki page.</p>
This is how you install (or upgrade) bCNC along with all required packages. You can use any of these commands (you need only one):</p>
</p>
<span class="image"><img src="img/w9/inst1.jpg" /></span></p>
This is how you launch bCNC:
<span class="image"><img src="img/w9/inst3.jpg" /></span></p>
<span class="image"><img src="img/w9/1.jpg" /></span></p>
</p>
</div>
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</div>
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<title>Week 9</title>
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Menu <i class="fa fa-bars"></i>
</button>
<a class="navbar-brand" href="index.html">HOME</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
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<ul class="nav navbar-nav navbar-right">
<li>
<a href="index.html">Home</a>
</li>
<li>
<a href="about.html">About Us</a>
</li>
<li>
<a href="assignments.html">Assignments</a>
</li>
<li>
<a href="machine.html">Machine</a>
</li>
</ul>
</div>
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</div>
<!-- /.container -->
</nav>
<!-- Page Header -->
<!-- Set your background image for this header on the line below. -->
<header class="intro-header" style="background-image: url('img/post10.jpg')">
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<div class="post-heading">
<h1>Molding and Casting</h1>
<h2 class="subheading">
Week 11</h2>
</div>
</div>
</div>
</div>
</header>
<!-- Post Content -->
<article>
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<header>
<h2>Molding and Casting</h2>
<blockquote>
<p><b>Group assignment</b></p>
<ul>
<li> review the safety data sheets for each of your molding and casting materials,
then make and compare test casts with each of them</li>
</ul>
</blockquote>
</header>
<hr />
<h3>End Stops Limit Switches</h3>
<P>End-stops can also be used as limit switches which prevent the machine from attempting to move beyond the physical limits of the
axis (by pausing/stopping movement when triggered), see the Endstops page for details about configuring Smoothie to use End Stops as limit switches.
</p> <br>
<span class="image"><img src="img/w9/41C+hBnFSwL.jpg" alt="" height="200"/></span></p><br>
The cnc shield offers us the necessary pins to connect our end switches but if we need to install more we could make a parallel connection
<span class="image"><img src="img/w9/end_Switches.jpg" alt="" height="400"/></span></p><br>
Connections for Arduino Mega</p><br>
<span class="image"><img src="img/w9/Grbl_Pines_arduino 2560.jpg" alt="" height="400"/></span></p>
<span class="image"><img src="img/w9/Grbl_Pines.jpg" alt="" height="600"/></span></p>
In this link you can download the GRLB cnc controller code<a href=" https://github.com/grbl/grbl" target="_Blank"> Download</a></p>
we can find the pins in each case in the GRBL file gcode_h</p>
<span class="image"><img src="img/w9/pines_grbl.jpg" alt="" height="600"/></span></p><br>
<h3>Component printing</h3>
<h4>Dremel stand</h4>
<span class="image"><img src="img/w9/imp1.jpg" alt="" height="210"/></span>
<span class="image"><img src="img/w9/imp2.jpg" alt="" height="210"/></span></p>
<h3>Improving the design</h3>
<span class="image"><img src="img/w9/imp4.jpeg" alt="" height="210"/></span>
<span class="image"><img src="img/w9/imp3.jpg" alt="" height="210"/></span></p>
<br>
</p>
</div>
<hr>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<header>
<h2>Machine Design</h2>
<blockquote>
<p><b>Group assignment</b></p>
<ul>
<li> actuate and automate your machine</li>
<li> document the group project and your individual contribution</li>
</ul>
</blockquote>
</header>
<hr />
<h3>Using Raspberry Pi</h3>
<P>Raspberry Pi, is a "it's a credit card size computer that connects to your TV and a keyboard." It is a board that
supports various components necessary in a common computer. ... These ports allow you to connect the minicomputer
to other devices, keyboards, mice, and displays <br>
</p>
<span class="image"><img src="img/w9/Raspberry-Pi.jpg" alt="" height="500"/></span>
<h3>installing operating system</h3></p>
<p style=text-align:justify;>To install the operating system on our Raspberry we will use Raspberry Pi Imager that we can download from the following link
<a href="https://www.raspberrypi.org/software/" target="_Blank"> Raspberry Pi Imager</a> Once we download and install it, we can choose the operating
system that we want to install. this will be installed in a micro usb memory
</p>
For this assignment we will install the 32-bit Raspberry Pi Os which is a linux-based operating system</p>
<br>
<span class="image"><img src="img/w9/imager.jpg" alt="" height="400"/></span>
</p>
<br>
<span class="image"><img src="img/w9/rasp_desk.jpg" /></span></p>
<br>
<p>
Once the installation is finished, it is necessary that our Raspberry has an internet connection, this can be by cable or through WiFi
</p>
To control the cnc we will use an arduino in conjunction with a cnc shield, the problem with this is that we cannot send large files, so
we will use the Raspberry, for this we will install the Bcnc software, doing the following steps, remember we are in linux</p>
<br>
<h3>Installation (using pip = recommended!)</h3>
This is short overview of installation proces, for more see the bCNC installation wiki page.</p>
This is how you install (or upgrade) bCNC along with all required packages. You can use any of these commands (you need only one):</p>
</p>
<span class="image"><img src="img/w9/inst1.jpg" /></span></p>
This is how you launch bCNC:
<span class="image"><img src="img/w9/inst3.jpg" /></span></p>
<span class="image"><img src="img/w9/1.jpg" /></span></p>
</p>
</div>
<hr>
</div>
</div>
</article>
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<!DOCTYPE html>
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<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title>Week 9</title>
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<!-- Custom Fonts -->
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<![endif]-->
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<nav class="navbar navbar-default navbar-custom navbar-fixed-top">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header page-scroll">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
Menu <i class="fa fa-bars"></i>
</button>
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</div>
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<ul class="nav navbar-nav navbar-right">
<li>
<a href="index.html">Home</a>
</li>
<li>
<a href="about.html">About Us</a>
</li>
<li>
<a href="assignments.html">Assignments</a>
</li>
<li>
<a href="machine.html">Machine</a>
</li>
</ul>
</div>
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</div>
<!-- /.container -->
</nav>
<!-- Page Header -->
<!-- Set your background image for this header on the line below. -->
<header class="intro-header" style="background-image: url('img/post12.jpg')">
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<div class="post-heading">
<h1>Output Devices</h1>
<h2 class="subheading">
Week 12</h2>
</div>
</div>
</div>
</div>
</header>
<!-- Post Content -->
<article>
<div class="container">
<div class="row">
<div class="col-lg-8 col-lg-offset-2 col-md-10 col-md-offset-1">
<header>
<h2>Output Devices</h2>
<blockquote>
<p><b>Group assignment</b></p>
<ul>
<li>Measure the power consumption of an output device</li>
</ul>
</blockquote>
</header>
<hr />
<h3>End Stops Limit Switches</h3>
<P>End-stops can also be used as limit switches which prevent the machine from attempting to move beyond the physical limits of the
axis (by pausing/stopping movement when triggered), see the Endstops page for details about configuring Smoothie to use End Stops as limit switches.
</p> <br>
<span class="image"><img src="img/w9/41C+hBnFSwL.jpg" alt="" height="200"/></span></p><br>
The cnc shield offers us the necessary pins to connect our end switches but if we need to install more we could make a parallel connection
<span class="image"><img src="img/w9/end_Switches.jpg" alt="" height="400"/></span></p><br>
Connections for Arduino Mega</p><br>
<span class="image"><img src="img/w9/Grbl_Pines_arduino 2560.jpg" alt="" height="400"/></span></p>
<span class="image"><img src="img/w9/Grbl_Pines.jpg" alt="" height="600"/></span></p>
In this link you can download the GRLB cnc controller code<a href=" https://github.com/grbl/grbl" target="_Blank"> Download</a></p>
we can find the pins in each case in the GRBL file gcode_h</p>
<span class="image"><img src="img/w9/pines_grbl.jpg" alt="" height="600"/></span></p><br>
<h3>Component printing</h3>
<h4>Dremel stand</h4>