diff --git a/src/widgets/CMakeLists.txt b/src/widgets/CMakeLists.txt
index 7a1857c..d5a0925 100644
--- a/src/widgets/CMakeLists.txt
+++ b/src/widgets/CMakeLists.txt
@@ -1,28 +1,30 @@
+include_directories(../dialogs)
+
 set(widgets_SRCS
     gcodeeditorwidget.cpp
     axiscontrol.cpp
     bedextruderwidget.cpp
     plotwidget.cpp
     pushgcodewidget.cpp
     ratescontrolwidget.cpp
     printprogresswidget.cpp
     logwidget.cpp
     videomonitorwidget.cpp
     atcoreinstancewidget.cpp
     )
 
 add_library(AtelierWidgets STATIC ${widgets_SRCS})
 
 target_link_libraries(AtelierWidgets 
     Qt5::Core 
     Qt5::Widgets 
     Qt5::SerialPort
     KF5::Solid 
     KF5::I18n 
     KF5::TextEditor 
     Qt5::Charts
     Qt5::Multimedia
     Qt5::MultimediaWidgets
     AtCore::AtCore)
 
 add_subdirectory(3dview)
diff --git a/src/widgets/atcoreinstancewidget.cpp b/src/widgets/atcoreinstancewidget.cpp
index 5df8a1c..1b01490 100644
--- a/src/widgets/atcoreinstancewidget.cpp
+++ b/src/widgets/atcoreinstancewidget.cpp
@@ -1,290 +1,316 @@
 /* Atelier KDE Printer Host for 3D Printing
     Copyright (C) <2017>
     Author: Lays Rodrigues - laysrodriguessilva@gmail.com
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "atcoreinstancewidget.h"
 #include "ui_atcoreinstancewidget.h"
 #include <QToolBar>
 #include <AtCore/SerialLayer>
 #include <AtCore/GCodeCommands>
 #include <KLocalizedString>
+#include "choosefiledialog.h"
 
 AtCoreInstanceWidget::AtCoreInstanceWidget(QWidget *parent):
     QWidget(parent)
 {
     ui = new Ui::AtCoreInstanceWidget;
     ui->setupUi(this);
     ui->printPB->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
     ui->pausePB->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
     ui->stopPB->setIcon(style()->standardIcon(QStyle::SP_MediaStop));
     ui->disableMotorsPB->setIcon(style()->standardIcon(QStyle::SP_DockWidgetCloseButton));
     ui->printProgressWidget->setVisible(false);
 
     setupConnections();
     enableControls(false);
 }
 
 void AtCoreInstanceWidget::setupConnections(){
     connect(ui->pausePB, &QPushButton::clicked, this, &AtCoreInstanceWidget::pausePrint);
     connect(ui->stopPB, &QPushButton::clicked, this, &AtCoreInstanceWidget::stopPrint);
     connect(ui->disableMotorsPB, &QPushButton::clicked, this, &AtCoreInstanceWidget::disableMotors);
 
     buildToolbar();
     connect(ui->disconnectPB, &QPushButton::clicked, [ & ]{
         m_core.setState(AtCore::DISCONNECTED);
     });
+    connect(ui->printPB, &QPushButton::clicked, this, &AtCoreInstanceWidget::print);
+
+    enableControls(false);
 }
 
 AtCoreInstanceWidget::~AtCoreInstanceWidget()
 {
     delete ui;
 }
 
 void AtCoreInstanceWidget::buildToolbar()
 {
     toolBar = new QToolBar();
 
     auto axis = new QAction("Axis");
     axis->setCheckable(true);
     axis->setChecked(true);
     connect(axis, &QAction::toggled, ui->axisViewWidget, &AxisControl::setVisible);
 
     auto controls = new QAction("Controls");
     controls->setCheckable(true);
     controls->setChecked(true);
     connect(controls, &QAction::toggled, ui->bedExtWidget, &BedExtruderWidget::setVisible);
 
     auto plot = new QAction("Temperature Plot");
     plot->setCheckable(true);
     plot->setChecked(true);
     connect(plot, &QAction::toggled, ui->plotWidget, &PlotWidget::setVisible);
 
     toolBar->addAction(axis);
     toolBar->addAction(controls);
     toolBar->addAction(plot);
     ui->toolBarLayout->addWidget(new QLabel(i18n("Show/Hide: ")));
     ui->toolBarLayout->addWidget(toolBar);
     ui->toolBarLayout->addStretch();
 }
 void AtCoreInstanceWidget::startConnection(const QString& serialPort, const QMap<QString, QVariant>& profile){
     m_core.initSerial(serialPort, profile["bps"].toInt());
     profileData = profile;
     initConnectsToAtCore();
 }
 
 void AtCoreInstanceWidget::initConnectsToAtCore()
 {
     // Handle AtCore status change
     connect(&m_core, &AtCore::stateChanged, this, &AtCoreInstanceWidget::handlePrinterStatusChanged);
 
     // If the number of extruders from the printer change, we need to update the radiobuttons on the widget
     connect(this, &AtCoreInstanceWidget::extruderCountChanged, ui->bedExtWidget, &BedExtruderWidget::setExtruderCount);
 
     // Bed and Extruder temperatures management
     connect(ui->bedExtWidget, &BedExtruderWidget::bedTemperatureChanged, &m_core, &AtCore::setBedTemp);
     connect(ui->bedExtWidget, &BedExtruderWidget::extTemperatureChanged, &m_core, &AtCore::setExtruderTemp);
 
     // Connect AtCore temperatures changes on Atelier Plot
     connect(&m_core.temperature(), &Temperature::bedTemperatureChanged, [ & ](const float& temp) {
         checkTemperature(0x00, 0, temp);
         ui->plotWidget->appendPoint(i18n("Actual Bed"), temp);
         ui->plotWidget->update();
         ui->bedExtWidget->updateBedTemp(temp);
     });
     connect(&m_core.temperature(), &Temperature::bedTargetTemperatureChanged, [ & ](const float& temp) {
         checkTemperature(0x01, 0, temp);
         ui->plotWidget->appendPoint(i18n("Target Bed"), temp);
         ui->plotWidget->update();
         ui->bedExtWidget->updateBedTargetTemp(temp);
     });
     connect(&m_core.temperature(), &Temperature::extruderTemperatureChanged, [ & ](const float& temp) {
         checkTemperature(0x02, 0, temp);
         ui->plotWidget->appendPoint(i18n("Actual Ext.1"), temp);
         ui->plotWidget->update();
         ui->bedExtWidget->updateExtTemp(temp);
     });
     connect(&m_core.temperature(), &Temperature::extruderTargetTemperatureChanged, [ & ](const float& temp) {
         checkTemperature(0x03, 0, temp);
         ui->plotWidget->appendPoint(i18n("Target Ext.1"), temp);
         ui->plotWidget->update();
         ui->bedExtWidget->updateExtTargetTemp(temp);
     });
 
     connect(ui->pushGCodeWidget, &PushGCodeWidget::push, [ & ](QString command) {
         ui->logWidget->addLog("Push " + command);
         m_core.pushCommand(command);
     });
 
     // Fan, Flow and Speed management
     connect(ui->ratesControlWidget, &RatesControlWidget::fanSpeedChanged, &m_core, &AtCore::setFanSpeed);
     connect(ui->ratesControlWidget, &RatesControlWidget::flowRateChanged, &m_core, &AtCore::setFlowRate);
     connect(ui->ratesControlWidget, &RatesControlWidget::printSpeedChanged, &m_core, &AtCore::setPrinterSpeed);
     connect(ui->axisViewWidget, &AxisControl::clicked, this, &AtCoreInstanceWidget::axisControlClicked);
 }
 
 void AtCoreInstanceWidget::printFile(const QUrl& fileName)
 {
     if (!fileName.isEmpty() && (m_core.state() == AtCore::IDLE)) {
         m_core.print(fileName.toLocalFile());
     }
 }
 
+void AtCoreInstanceWidget::print(){
+    switch (m_files.size()){
+        case 0:
+            QMessageBox::warning(this, i18n("Error"),
+                                 i18n("There's no GCode File open. \n Please select a file and try again."),
+                                 QMessageBox::Ok);
+            break;
+        case 1:
+            printFile(m_files.at(0));
+            break;
+        default:
+            auto dialog = new ChooseFileDialog(this, m_files);
+            if(dialog->exec() == QDialog::Accepted){
+                    printFile(dialog->choosenFile());
+            }
+    }
+}
 void AtCoreInstanceWidget::pausePrint()
 {
     if(m_core.state() == AtCore::BUSY) {
         m_core.pause(profileData["postPause"].toString());
     } else if (m_core.state() == AtCore::PAUSE) {
         m_core.resume();
     }
 }
 
 void AtCoreInstanceWidget::stopPrint()
 {
     m_core.stop();
 }
 
 void AtCoreInstanceWidget::disableMotors()
 {
     m_core.setIdleHold(0);
 }
 
 void AtCoreInstanceWidget::handlePrinterStatusChanged(AtCore::STATES newState)
 {
     static QString stateString;
     switch (newState) {
         case AtCore::CONNECTING: {
             stateString = i18n("Connecting...");
             connect(&m_core, &AtCore::receivedMessage, this, &AtCoreInstanceWidget::checkReceivedCommand);
             connect(m_core.serial(), &SerialLayer::pushedCommand, this, &AtCoreInstanceWidget::checkPushedCommands);
         } break;
         case AtCore::IDLE: {
             stateString = i18n("Connected to ") + m_core.serial()->portName();
             emit extruderCountChanged(m_core.extruderCount());
             ui->logWidget->addLog(i18n("Serial connected"));
             ui->disconnectPB->setEnabled(true);
             enableControls(true);
         } break;
         case AtCore::DISCONNECTED: {
             stateString = i18n("Not Connected");
             disconnect(&m_core, &AtCore::receivedMessage, this, &AtCoreInstanceWidget::checkReceivedCommand);
             disconnect(m_core.serial(), &SerialLayer::pushedCommand, this, &AtCoreInstanceWidget::checkPushedCommands);
             ui->logWidget->addLog(i18n("Serial disconnected"));
             enableControls(false);
         } break;
         case AtCore::STARTPRINT: {
             stateString = i18n("Starting Print");
             ui->printProgressWidget->setVisible(true);
             connect(&m_core, &AtCore::printProgressChanged, ui->printProgressWidget, &PrintProgressWidget::updateProgressBar);
         } break;
         case AtCore::FINISHEDPRINT: {
             stateString = i18n("Finished Print");
             ui->printProgressWidget->setVisible(false);
             disconnect(&m_core, &AtCore::printProgressChanged, ui->printProgressWidget, &PrintProgressWidget::updateProgressBar);
         } break;
         case AtCore::BUSY: {
             stateString = i18n("Printing");
             ui->disconnectPB->setDisabled(true);
         } break;
         case AtCore::PAUSE: {
             stateString = i18n("Paused");
         } break;
         case AtCore::STOP: {
             stateString = i18n("Stoping Print");
         } break;
         case AtCore::ERRORSTATE: {
             stateString = i18n("Error");
         } break;
         default:
           qWarning("AtCore State not Recognized.");
           break;
     }
      ui->lblState->setText(stateString);
 }
 
 void AtCoreInstanceWidget::checkTemperature(uint sensorType, uint number, uint temp)
 {
     static QString msg;
     switch (sensorType) {
     case 0x00: // bed
         msg = QString::fromLatin1("Bed Temperature ");
         break;
 
     case 0x01: // bed target
         msg = QString::fromLatin1("Bed Target Temperature ");
         break;
 
     case 0x02: // extruder
         msg = QString::fromLatin1("Extruder Temperature ");
         break;
 
     case 0x03: // extruder target
         msg = QString::fromLatin1("Extruder Target Temperature ");
         break;
 
     case 0x04: // enclosure
         msg = QString::fromLatin1("Enclosure Temperature ");
         break;
 
     case 0x05: // enclosure target
         msg = QString::fromLatin1("Enclosure Target Temperature ");
         break;
     }
 
     msg.append(QString::fromLatin1("[%1] : %2"));
     msg = msg.arg(QString::number(number))
           .arg(QString::number(temp));
 
     ui->logWidget->addRLog(msg);
 }
 
 void AtCoreInstanceWidget::checkReceivedCommand(const QByteArray &message)
 {
     ui->logWidget->addRLog(QString::fromUtf8(message));
 }
 
 void AtCoreInstanceWidget::checkPushedCommands(const QByteArray &bmsg)
 {
     QString msg = QString::fromUtf8(bmsg);
     QRegExp _newLine(QChar::fromLatin1('\n'));
     QRegExp _return(QChar::fromLatin1('\r'));
     msg.replace(_newLine, QStringLiteral("\\n"));
     msg.replace(_return, QStringLiteral("\\r"));
     ui->logWidget->addSLog(msg);
 }
 
 void AtCoreInstanceWidget::axisControlClicked(QChar axis, int value)
 {
   m_core.setRelativePosition();
   m_core.pushCommand(GCode::toCommand(GCode::G1, QStringLiteral("%1%2").arg(axis, QString::number(value))));
   m_core.setAbsolutePosition();
 }
 
 void AtCoreInstanceWidget::enableControls(bool b)
 {
     ui->mainTab->setEnabled(b);
     ui->printPB->setEnabled(b);
     ui->pausePB->setEnabled(b);
     ui->stopPB->setEnabled(b);
     ui->disconnectPB->setEnabled(b);
     ui->disableMotorsPB->setEnabled(b);
     toolBar->setEnabled(b);
 }
 
 bool AtCoreInstanceWidget::connected()
 {
     return (m_core.state() != AtCore::DISCONNECTED);
 }
+
+void AtCoreInstanceWidget::setOpenFiles(const QList<QUrl>& files)
+{
+    m_files = files;
+}
diff --git a/src/widgets/atcoreinstancewidget.h b/src/widgets/atcoreinstancewidget.h
index afd84a9..789a48c 100644
--- a/src/widgets/atcoreinstancewidget.h
+++ b/src/widgets/atcoreinstancewidget.h
@@ -1,71 +1,75 @@
 /* Atelier KDE Printer Host for 3D Printing
     Copyright (C) <2017>
     Author: Lays Rodrigues - laysrodriguessilva@gmail.com
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #pragma once
 #include <QWidget>
 #include <QUrl>
 #include <QToolBar>
 #include <AtCore/AtCore>
+#include <QList>
 
 namespace Ui
 {
 class AtCoreInstanceWidget;
 }
 
 /**
  * @todo write docs
  */
 class AtCoreInstanceWidget : public QWidget
 {
     Q_OBJECT
 
 public:
     /**
      * Default constructor
      */
     AtCoreInstanceWidget(QWidget* parent = nullptr);
 
     /**
      * Destructor
      */
     ~AtCoreInstanceWidget();
     void startConnection(const QString& serialPort, const QMap<QString, QVariant>& profile);
     bool connected();
+    void setOpenFiles(const QList<QUrl>& files);
 
 private:
     Ui::AtCoreInstanceWidget* ui;
     AtCore m_core;
     QToolBar *toolBar;
     QMap<QString, QVariant> profileData;
+    QList<QUrl> m_files;
     void initConnectsToAtCore();
     void printFile(const QUrl& fileName);
     void pausePrint();
     void stopPrint();
     void disableMotors();
     void checkReceivedCommand(const QByteArray &message);
     void checkPushedCommands(const QByteArray &bmsg);
     void handlePrinterStatusChanged(AtCore::STATES newState);
     void checkTemperature(uint sensorType, uint number, uint temp);
     void axisControlClicked(QChar axis, int value);
     void enableControls(bool b);
     void buildToolbar();
     void setupConnections();
+    void print();
 
 signals:
     void extruderCountChanged(int count);
 };