{"id":65,"date":"2018-04-30T04:36:00","date_gmt":"2018-04-30T04:36:00","guid":{"rendered":"https:\/\/blogs.etsii.urjc.es\/dseytr\/?p=65"},"modified":"2019-05-04T17:53:47","modified_gmt":"2019-05-04T17:53:47","slug":"grupo-19-impresora-3d","status":"publish","type":"post","link":"https:\/\/blogs.etsii.urjc.es\/dseytr\/grupo-19-impresora-3d\/","title":{"rendered":"Impresora 3D"},"content":{"rendered":"<p><\/p>\n<div style=\"text-align: left;\">\nGrupo 19<\/div>\n<div style=\"text-align: left;\">\nDavid Martinez<\/div>\n<h2 style=\"text-align: left;\">\n1- Introducci\u00f3n<\/h2>\n<div>\nEste proyecto consiste en la implementaci\u00f3n de una impresora 3D con materiales reciclados.&nbsp;<\/div>\n<div>\n<\/div>\n<h2>\n2- Materiales<\/h2>\n<h3>\n2.1 Materiales<\/h3>\n<div>\n<table>\n<thead>\n<tr>\n<th>Nombre<\/th>\n<th>Cantidad<\/th>\n<th>Precio Unidad \u20ac<\/th>\n<th>Precio Total \u20ac<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Arduino Uno<\/td>\n<td>1<\/td>\n<td>8<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>Lector CD\/DVD Usado<\/td>\n<td>3<\/td>\n<td>4<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>Controlador Motor Paso a paso A3967<\/td>\n<td>3<\/td>\n<td>2<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>Lapiz 3D<\/td>\n<td>1<\/td>\n<td>14<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>Fuente Alimentaci\u00f3n PC<\/td>\n<td>1<\/td>\n<td>14<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>Cables<\/td>\n<td>40<\/td>\n<td>0,05<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>Transistor NPN 2N2221A<\/td>\n<td>1<\/td>\n<td>0,06<\/td>\n<td>0,06<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>\n2.2 Herramientas<\/h3>\n<div>\n<ul>\n<li>Taladro.<\/li>\n<li>Soldador<\/li>\n<li>Sierra<\/li>\n<li>Multimetro<\/li>\n<\/ul>\n<\/div>\n<h2>\n3- Desarrollo<\/h2>\n<h3>\n3.1 Desmontar lector CD \/ DVD<\/h3>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<p>Primero desmontamos los 3 lectores de CD \/ DVD para acceder a los motores paso a paso.<\/p>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/IMG-20180415-WA0000-1024x768.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"1200\" data-original-width=\"1600\" height=\"480\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/IMG-20180415-WA0000-1024x768.jpg\" width=\"640\" \/><\/a><\/div>\n<div>\n<\/div>\n<h3>\n3.2 Localizar los pares de cada bobina<\/h3>\n<div>\nLos motores que se utilizan en los lectores son bipolares, est\u00e1n compuestos de dos bobinas, cada una de ellas salen dos cables, el positivo y negativo, lo primero que debemos hacer es reconocer cada pareja de cables, para ello utilizamos un multimetro en modo diodo.<\/div>\n<div>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<h3>\n3.3 Soldar cables del lector<\/h3>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\nEn mi caso, utilizare los colores blanco y negro para un par y rojo y amarillo para el otro.<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/LectorSoldado.png\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"466\" data-original-width=\"345\" height=\"320\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/LectorSoldado.png\" width=\"236\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\n<\/div>\n<h3>\n3.4 Probar los motores y lo driver.<\/h3>\n<div>\nUna vez tengamos listos los motores y los driver, probamos cada uno por separado.<\/div>\n<div>\nEste sencillo c\u00f3digo sirve para mover el motor que conectemos de un lado a otro. En este caso los motores recibir\u00e1n 5V de la fuente (las fuentes de alimentaci\u00f3n tiene salidas de 3.3 , 5 y 12 voltios)<\/p>\n<p>\nvoid setup() {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <br \/>\n&nbsp; pinMode(8, OUTPUT);&nbsp; &nbsp; <br \/>\n&nbsp; pinMode(9, OUTPUT);<br \/>\n&nbsp; digitalWrite(8, LOW);<br \/>\n&nbsp; digitalWrite(9, LOW);<br \/>\n}<\/p>\n<p>void loop() {<br \/>\n&nbsp; for (int c=0;c&lt;1600;c++){<br \/>\n&nbsp; &nbsp; &nbsp; digitalWrite(9, HIGH);<br \/>\n&nbsp; &nbsp; &nbsp; delayMicroseconds(250);&nbsp; &nbsp; &nbsp; &nbsp; <br \/>\n&nbsp; &nbsp; &nbsp; digitalWrite(9, LOW);<br \/>\n&nbsp; &nbsp; &nbsp; delayMicroseconds(250);&nbsp; <br \/>\n&nbsp; &nbsp; <br \/>\n&nbsp; }<br \/>\n&nbsp; &nbsp; if (digitalRead(8) == LOW)<br \/>\n&nbsp; &nbsp; {<br \/>\n&nbsp; &nbsp; &nbsp; digitalWrite(8, HIGH);<br \/>\n&nbsp; &nbsp; }<br \/>\n&nbsp; &nbsp; else<br \/>\n&nbsp; &nbsp; {<br \/>\n&nbsp; &nbsp; &nbsp; digitalWrite(8, LOW);<br \/>\n&nbsp; &nbsp; }<br \/>\n&nbsp; &nbsp; <br \/>\n}<\/p>\n<\/div>\n<div>\n<pre><\/pre>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<div>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: left;\">\n<\/div>\n<div>\n<\/div>\n<div>\n<\/div>\n<h3>\n<\/h3>\n<h3>\n<\/h3>\n<h3>\n3.5 Modificar el l\u00e1piz 3D<\/h3>\n<div>\nDesmontamos el l\u00e1piz 3D, y buscamos el bot\u00f3n que activa el extrusor para que tire del cable al calentador. Con el multimetro, localizamos los dos puntos del boton que permiten encender el extrusor.<\/div>\n<div>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/20180426_152446-1024x576.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"900\" data-original-width=\"1600\" height=\"180\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/20180426_152446-1024x576.jpg\" width=\"320\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<div>\n<\/div>\n<div>\nUna vez localizados los dos puntos, los soldamos con mucho cuidado, ya que, si al soldar juntamos partes del bot\u00f3n o del circuito en si, dejar\u00e1 de funcionar el l\u00e1piz.<\/div>\n<h3>\n3.6 Montar la estructura de la impresora.<\/h3>\n<div>\nEn esta parte simplemente dise\u00f1amos la estructura en la que van a ir apoyados los tres ejes, en este caso se utilizar\u00e1 partes de las piezas que hemos desmontado.<\/div>\n<div>\n<\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/IMG-20180415-WA0003-768x1024.jpg\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"1600\" data-original-width=\"1200\" height=\"320\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/IMG-20180415-WA0003-768x1024.jpg\" width=\"240\" \/><\/a><\/div>\n<div>\n<\/div>\n<div>\n<h3>\n3.7 Automatizar el l\u00e1piz 3D con arduino.<\/h3>\n<\/div>\n<div>\nDespu\u00e9s de montar la estructura y de colocar el l\u00e1piz 3D, debemos descubrir como encender el extrusor mediante arduino.<br \/>\nEn mi caso, el extrusor se encend\u00eda al recibir voltaje y al cabo de medio segundo cortarlo. En siguiente c\u00f3digo es el que utilic\u00e9 para encender el l\u00e1p\u00ecz.<\/div>\n<div>\n<\/div>\n<div>\n<div>\nvoid setup() {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<\/div>\n<div>\n&nbsp; pinMode(8, OUTPUT);&nbsp;<\/div>\n<div>\n&nbsp; Serial.begin(9600);&nbsp; &nbsp;<\/div>\n<div>\n<\/div>\n<div>\n}<\/div>\n<div>\n<\/div>\n<div>\nvoid loop() {<\/div>\n<div>\n&nbsp; Serial.println(\u00abVoy\u00bb);<\/div>\n<div>\n&nbsp; encenderApagar();<\/div>\n<div>\n&nbsp;&nbsp;<\/div>\n<div>\n&nbsp; delay(5000);<\/div>\n<div>\n&nbsp; digitalWrite(8, LOW);&nbsp;<\/div>\n<div>\n<\/div>\n<div>\n<\/div>\n<div>\n}<\/div>\n<div>\n<\/div>\n<div>\nvoid encenderApagar(){<\/div>\n<div>\n&nbsp; &nbsp;<\/div>\n<div>\n&nbsp; digitalWrite(8, HIGH);<\/div>\n<div>\n&nbsp; delay(500);<\/div>\n<div>\n&nbsp; digitalWrite(8, LOW);&nbsp;&nbsp;<\/div>\n<div>\n}<\/p>\n<h3>\n3.8 Conectando a la fuente de alimentaci\u00f3n \/ laboratorio.<\/h3>\n<p><\/p>\n<ul>\n<li>Cuando conectemos los 3 motores, deberemos utilzar una salida de 12V para alimentarlos, si conectamos en paralelo los 3 motores con la salida de 5V, no se mover\u00e1n.<\/li>\n<li>El lapiz requiere de 12V para funcionar, podemos utilizar la propia fuente, o emplear el transformador que viene con el l\u00e1piz.<\/li>\n<\/ul>\n<p><\/p>\n<h3>\n3.9 Instalar software GRBL en arduino<\/h3>\n<\/div>\n<\/div>\n<div>\nPara facilitar el control de los motores utilizaremos el software libre&nbsp;<a href=\"https:\/\/github.com\/grbl\/grbl\">GRBL<\/a>, en mi caso utilizo la versi\u00f3n (0.9i).&nbsp;<\/div>\n<div>\n<\/div>\n<h3>\n3.10 Universal Gcode Sender<\/h3>\n<div>\nCon GRBL instalado, podemos cominicarnos con nuestro arduino utilizando G-CODE, hay programas que nos facilitan la vida a la hora de mandar las ordenes a nuestra impresora, en nuestro caso utilizaremos <a href=\"https:\/\/github.com\/winder\/Universal-G-Code-Sender\">Universal Gcode Sender<\/a><\/div>\n<div>\n<\/div>\n<h3>\n3.11 Calibrando los motores la impresora<\/h3>\n<div>\nDado a que GRBL esta dise\u00f1ado para funcionar con todo tipo de motores paso a paso, es necesarios indicarle cuantos pulsos debe enviar a cada motor para que este se mueva una distancia determinada (se mide en pulsos por mil\u00edmetro). Utilizando una simple regla medimos cuanta distancia recorre cuando le indicamos que se mueva un mil\u00edmetro, si se pasar\u00e1 o no llegase, modificamos los par\u00e1metros $100 (X), $101 (Y), $102 (Z). Mi configuraci\u00f3n es la siguiente:<\/div>\n<div>\n<div style=\"font-family: Calibri; font-size: 11.0pt; margin: 0in;\">\n<\/div>\n<ul>\n<li>Eje X esta $100=63<\/li>\n<li>Eje Y esta $101=63<\/li>\n<li>Eje Z esta $102=63<\/li>\n<\/ul>\n<p><\/div>\n<div>\n<h3>\n3.12 Activando y desactivando el extrusor desde GRBL<\/h3>\n<div>\nEn GCode, se utiliza el comando M03 y M05 para encender y apagar el extrusor respectivamente. En mi caso, es necesario mandar una serie de mandatos para encender\/apagar el extrusor:<\/div>\n<div>\n<\/div>\n<div style=\"border-style: solid;\">\n<div style=\"font-family: Calibri; font-size: 11.0pt; margin: 0in;\">\nS1000<\/div>\n<div style=\"font-family: Calibri; font-size: 11.0pt; margin: 0in;\">\nM03<\/div>\n<div style=\"font-family: Calibri; font-size: 11.0pt; margin: 0in;\">\nG4 P0.5<\/div>\n<div style=\"font-family: Calibri; font-size: 11.0pt; margin: 0in;\">\nM05<\/div>\n<\/div>\n<p><\/div>\n<h2>\n4 Esquema Circuito<\/h2>\n<div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<a href=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/Arduino_3D-986x1024.png\" imageanchor=\"1\" style=\"margin-left: 1em; margin-right: 1em;\"><img loading=\"lazy\" decoding=\"async\" border=\"0\" data-original-height=\"1600\" data-original-width=\"1541\" height=\"640\" src=\"https:\/\/blogs.etsii.urjc.es\/wp-content\/uploads\/sites\/8\/2018\/04\/Arduino_3D-986x1024.png\" width=\"616\" \/><\/a><\/div>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<h2>\n5 V\u00eddeo impresora funcionando.<\/h2>\n<div class=\"separator\" style=\"clear: both; text-align: center;\">\n<\/div>\n<div>\n<\/div>\n<h2>\n6 Problemas encontrados<\/h2>\n<div>\n<ul>\n<li>Al soldar los puntos del l\u00e1piz 3D, se hizo contacto con un punto que no deber\u00eda, lo que provocaba que el l\u00e1piz no funcionase, fue necesario quitar las soldaduras y volver a soldar.<\/li>\n<li>Al conectar los 3 motores a la salida de 5V de la fuente,estos no funcionaban, al probar con la fuente de laboratorio se encendieron al pasarle 12V.<\/li>\n<li>Al mandar la se\u00f1al de encendido desde GRBL al lapiz, este no encendia el extrusor, fue cuando se decidi\u00f3 crear un proyecto a parte para intentar averiguar como encenderlo.<br \/>Despu\u00e9s de numerosas pruebas, se descubri\u00f3 que este l\u00e1piz requer\u00eda recibir corriente y a continuaci\u00f3n dejar de recibirla para encenderse y apagarse (a diferencia de otros l\u00e1pices 3D que se encienden al recibir corriente y se apagan cuando dejan de recibirlo).<br \/>Luego hubo que deducir que mandatos GCode podr\u00edan encender y apagar el l\u00e1piz.<\/li>\n<li>El extrusor empujada m\u00e1s filamento del que el cabezal era capaz de sacar, lo que provocaba que el pl\u00e1stico terminase desconectando el cabezal. Para solucionarlo se tuve que reforzar la uni\u00f3n de la cabeza con el cuerpo utilizando una abrazadera.<\/li>\n<\/ul>\n<h2>\n7 Propuestas de mejora.<\/h2>\n<div>\n<ul>\n<li>Conectar el lapiz a la fuente de alimentaci\u00f3n para no tener que requerir de dos enchufes.<\/li>\n<li>Utilizar los pines 0 y 1 para comunicar nuestro arduino con otro arduino, de este modo podr\u00eda a\u00f1adirse una pantalla t\u00e1ctil, adem\u00e1s de todo tipo de conexiones (Bluetooth, wifi, sd card).<\/li>\n<\/ul>\n<div>\n<\/div>\n<\/div>\n<div>\n<a href=\"https:\/\/drive.google.com\/drive\/folders\/10AwGyqmDYwTEX40vsF4HlPHF98ZU2vTV?usp=sharing\" target=\"_blank\" rel=\"noopener noreferrer\">Memoria en PDF y presentacion<\/a><\/div>\n<div>\n<\/div>\n<\/div>\n<p><span id=\"goog_1918742180\"><\/span><span id=\"goog_1918742181\"><\/span>\n<\/div>\n<h3>\n<\/h3>\n<div style=\"text-align: center;\">\n<\/div>\n<div style=\"text-align: center;\">\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Grupo 19 David Martinez 1- Introducci\u00f3n Este proyecto consiste en la implementaci\u00f3n de una impresora 3D con materiales reciclados.&nbsp; 2- Materiales 2.1 Materiales Nombre Cantidad Precio Unidad \u20ac Precio Total \u20ac Arduino Uno 1&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":1489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-proyectos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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