week 11

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-									<a href="generic.html">
+									<a href="week 11.html">
 										<h2>Machine Design</h2>
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 											<p>Sed nisl arcu euismod sit amet nisi lorem etiam dolor veroeros et feugiat.</p>

week 11.html

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 							<p>GOALS FOR THE WEEK</p>
 						<ul>
 							<P>GROUP</P>
-								<li>Measure the power consumption of an output device.</li>
-								<li>Document your work to the group work page and reflect on your individual page what you learned</li>
+								<li>Design a machine that includes mechanism + actuation + automation
+									
+									</li>
+								<li>Build the mechanical parts and operate it manually.</li>
+								<li>Document the group project</li>
 								<BR>
                             <P>INDIVIDUAL</P>
-                               <li>Add an output device to a microcontroller board you've designed and program it to do something.</li>
+                               <li>Document your individual contribution.</li>
 							  
 							   
 							</ul>
 
-							<h2>CONCEPT</h2>
-							<P>I decided to use a servo motor as my output device as I might use it later in my final project.</P>
-
-							
-
-							<P><B>SERVO MOTORS</B></P>
-							<p>A servomotor is a rotary actuator or motor that allows precise control in terms of angular position, acceleration and speed,
-								 capabilities that a normal motor does not have. In short, it uses a normal motor and combines it with a sensor for position feedback.</p>
+							<h2>THE CONCEPT</h2>
+							<P>The group consists of 
+								<a href ="https://fabacademy.org/2022/labs/barcelona/students/eduard-almasque/">Eduard,</a>
+									<a href ="https://fabacademy.org/2022/labs/barcelona/students/marcoantonio-sardo/">Marco and</a>
+										<a href ="https://fabacademy.org/2022/labs/barcelona/students/angel-erazo/">Angel</a>
 								
-								 <img src="images/WEEK 10/servo.jpg" width="350" height="280"><BR>
-								 <P><B>MOSFETS</B></P>
-							<P>A MOSFET is a transistor , an electrical component that is responsible for regulating the voltage output from a given input voltage. I decided to use a P channel mosfet.</P>
-							<B>N CHANNEL vs P CHANNEL MOSFETS</B><br><br>
-								<img src="images/WEEK 10/p vs n.jpg" width="600" height="420">
-
-							
+								
+								and we made a <b>Tic-Tac-Toe drawing machine</b> that you can play with. I was responsible for the Machine buiding and assembly.</P>
+								<video width="1000" height="550" controls>
+									<source src="images/week 10/autoroute.mp4" type="video/mp4" ></video><br><br><br>
 
-							<h3>SCHEMATIC</h3>
-							<img src="images/WEEK 10/SCHE.jpg" width="1200" height="600"><br><br><br>
+									<p><b>Link to the<a href ="https://fabacademy.org/2022/labs/barcelona/students/barcelona-group-assignment/assignments/week11-machines/tic-tac-toe-machine/"> group Documentation</a></b> </p>
 
-							<h3>PCB</h3>
 
-							<img src="images/WEEK 10/pcb.jpg" width="500" height="450"><br><br><br>
+								<h3>PROCESS</h3>
+								<P>The machine that we have built has various mechanisms to operate and perform 
+									action in all 3 spacial dimensions:<BR><UL>
 
-							<h3>AUTOROUTING EXPERIMENT</h3>
-							<p>Taking the advice of a classmate Eduard almasque, I decided to experiment with autorouting using <b>Layout editor</b>.
-							<ol>
-								<li>The layout editor can be downloaded from <a href ="https://layouteditor.com/download">here.</a></li>
-								<li>After installation, you have to extract the <b>freerouting.jar</b> file from layout editor > Bin > freerouting.jar.</li>
-								<li>The application requires a .dsn file, so I exported my PCB Layout from Kicad. </li>
-								<li>Open the .dsn in freerouting.exe and check and edit parameters for autorouting.</li>
-								<li>Check if the parameters such as netclasses have been carried over from Kicad.</li>
-								<li>Click on autoroute. You can pause the process when needed and move things around to help the routing.</li>
-							</ol>
-							
-							<video width="700" height="350" controls>
-								<source src="images/WEEK 10/autoroute.mp4" type="video/mp4" >
-							</video><br><BR><BR>
-							</p>
 
-							
-							<h3>MILLING AND STUFFING THE BOARD</h3>
-							<img src="images/WEEK 10/milling.jpg" width="400" height="380"><br><br><br>
+									<LI>1 mechanism to operate on the X axis (1 degree of freedom) using dual stepper motors</LI>
+									<LI>1 mechanism to operate on the Y axis (1 degree of freedom) using a single stepper motor</LI>
+									<LI>1 mechanism to operate on the Z axis (1 degree of freedom) using a single servo motor</LI></P></UL>
 
+									<P>We used a partly assembled machine that was already at the lab. It consisted of 12 aluminium frames. We modified the existing frame in Rhino.
+										We had to laser cut 5mm acrylic sheet for,
+										<ul><li>Two holders on either side of the frame acting as X axis</li>
+											<li>Frame in the center that holds on to the aluminium frame acting as the Y axis.</li>
+											<li>Extension attached to the Y axis that also has a servo and pen holder.</li>
+						
+										</ul>
+									</P>
 
-							<H3>FLASHING THE BOOTLOADER</H3>
-							<P><ol>
-								<li>Connect the board to the Programmer and plug it into the computer.</li>
-								<li>Download the sam_ba_Generic_D11C14A bootloader. You need to have the <a href ="https://github.com/ataradov/edbg">EDBG</a> downloaded.
-								 The bootloader has to be inside the EDBG folder.</li>
-									<li>Open GitBah Terminal in the same folder and run, <u>edbg-windows-r24.exe -ebpv -t samd11 -f sam_ba_SAMD11C14A.bin</u></li><br>
-									<img src="images/WEEK 8/bootloader.jpg" width="700" height="400"><br>
-									<li>Disconnect the programmer and connect the new board.</li>
-									<li>Open the Arduino program.</li>
-						            </ol>
+									<img src="images/week 11/plate1.jpg" width="540" height="520">
+									<img src="images/week 11/sides.jpeg" width="650" height="520"><br>
+									<img src="images/week 11/extendion.jpg" width="900" height="450"><br>
 
 
-							
+									<p>We either needed to make an extension for the Z axis or move the base up.
+										We chose design an extension with a servo holder cutout that is fixed to the Z axis stepper holder. </p>
+									<img src="images/week 11/penholder.jpg" width="350" height="520">
+									<img src="images/week 11/pen holder.jpeg" width="690" height="520">
+									<img src="images/week 11/spacers.jpg" width="900" height="400"><br>
+									<p>We also made Z axis holder with an extended arm that can be used in further iterations of the machine.</p>
+									<img src="images/week 11/zaxis.jpg" width="450" height="520">
+									<img src="images/week 11/z axis.jpeg" width="750" height="520"><br><br>
+									<p>We also had to make a thread in the aluminium frame to attach to the holder with screws.</p>
 
-							<H3>PROGRAMMING USING ARDUINO</H3>
-							<P>1. First you need to install <a href ="https://www.arduino.cc/en/software">ARDUINO IDE</a><br>
-							2. Configure the settings, <br>
-							Board to <b>Generic D11C14A </b><BR>
-								Serial Config to <b>TWO_UART</b><BR>
-									Programmer to <b>Atmel EDBG</b><BR><BR>
+									<img src="images/week 11/screw.jpeg" width="750" height="520"><BR><BR>
 
+									<h3>EVOLUTION</h3>
+									<p>The first iteration of the assembly had the Y axis above the base frame and we were planning to make an extension arm as the Z axis.
+										Eventually, we realised that flipped it upside down would make the Z axis shorter and makes the machine more stable.
+									</p>
+									<img src="images/week 11/iteration 1.jpeg" width="600" height="400">
+									<img src="images/week 11/iteration2.jpeg" width="600" height="400"><br>
+									<p> Design files download<br>
+										<a href="images/week 11/acrylic plate.zip" download>Rhino file</a>
+									</p>
 
-							<img src="images/WEEK 8/gen.jpg" width="400" height="300">
-							<img src="images/WEEK 8/two.jpg" width="400" height="300">
-							<img src="images/WEEK 8/edbg.jpg"  width="400" height="300">
-						</P>
-						<H3>LOADING THE CODE</H3>
-						<OL>
-							<li>Making the LED Blink</li><br>
-							<img src="images/WEEK 8/LED BLINKING.jpg" width="720" height="450"><br>
 
-							<video width="700" height="350" controls>
-								<source src="images/WEEK 8/led.mp4" type="video/mp4" >
-							</video><br><br>
+									
 
-							<LI>Using the button to make the LED blink</LI><br>
-							<img src="images/WEEK 8/button blink.jpg" width="1250" height="900"><br><br>
+								
 
-							<video width="700" height="350" controls>
-								<source src="images/WEEK 8/button.mp4" type="video/mp4" >
-							</video>
 
-						</OL>
 
 
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week 5.html

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 									<p>I used blender to clean up the scan a little bit.</p>
 									<img src="images/week 4/SRM.jpg" width="400" height="400"><br>
 
+									<p> Design files download<br>
+										<a href="images/week 5/vase.gh" download>Vase rhino file</a><br>
+										<a href="images/week 5/test 1 dhanu.ply" download>Scan test 1</a><br>
+										<a href="images/week 5/test2.ply" download>Scan test 2</a><br>
+									</p>
+