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package org.reprap.machines;
import javax.media.j3d.*;
import java.io.IOException;
import org.reprap.Attributes;
import org.reprap.CartesianPrinter;
import org.reprap.Preferences;
import org.reprap.ReprapException;
import org.reprap.gui.Previewer;
import org.reprap.devices.NullExtruder;
import org.reprap.Extruder;
import org.reprap.utilities.Debug;
public abstract class GenericCartesianPrinter implements CartesianPrinter
{
/**
* This is our previewer window
*/
protected Previewer previewer = null;
/**
* How far have we moved, in mm.
*/
protected double totalDistanceMoved = 0.0;
/**
* What distnace did we extrude, in mm.
*/
protected double totalDistanceExtruded = 0.0;
/**
* Scale for each axis in steps/mm.
*/
protected double scaleX, scaleY, scaleZ;
/**
* Current X, Y and Z position of the extruder
*/
protected double currentX, currentY, currentZ;
/**
* Maximum feedrate for X, Y, and Z axes
*/
protected double maxFeedrateX, maxFeedrateY, maxFeedrateZ;
/**
* Current feedrate for the machine.
*/
protected double currentFeedrate;
/**
* Feedrate for fast XY moves on the machine.
*/
protected double fastFeedrateXY;
/**
* Number of extruders on the 3D printer
*/
protected int extruderCount;
/**
* Array containing the extruders on the 3D printer
*/
protected Extruder extruders[];
/**
* Current extruder?
*/
protected int extruder;
/**
* When did we start printing?
*/
protected long startTime;
/**
* Do we idle the z axis?
*/
protected boolean idleZ;
/**
*
*/
private double overRun;
/**
*
*/
private long delay;
public GenericCartesianPrinter(Preferences config) throws Exception
{
startTime = System.currentTimeMillis();
//load axis prefs
int axes = config.loadInt("AxisCount");
if (axes != 3)
throw new Exception("A Cartesian Bot must contain 3 axes");
//load extruder prefs
extruderCount = config.loadInt("NumberOfExtruders");
if (extruderCount < 1)
throw new Exception("A Reprap printer must contain at least one extruder");
//load our actual extruders.
extruders = new NullExtruder[extruderCount];
loadExtruders(config);
// TODO This should be from calibration
scaleX = config.loadDouble("XAxisScale(steps/mm)");
scaleY = config.loadDouble("YAxisScale(steps/mm)");
scaleZ = config.loadDouble("ZAxisScale(steps/mm)");
// Load our maximum feedrate variables
maxFeedrateX = config.loadDouble("MaximumFeedrateX(mm/minute)");
maxFeedrateY = config.loadDouble("MaximumFeedrateY(mm/minute)");
maxFeedrateZ = config.loadDouble("MaximumFeedrateZ(mm/minute)");
//set our fastest feedrate.
fastFeedrateXY = Math.min(maxFeedrateX, maxFeedrateY);
//init our stuff.
currentX = 0;
currentY = 0;
currentZ = 0;
}
/* (non-Javadoc)
* @see org.reprap.Printer#initialise()
*/
public void initialise() throws Exception
{
if (previewer != null)
previewer.reset();
Debug.d("Selecting material 0");
selectExtruder(0);
Debug.d("Homing machine");
home();
Debug.d("Setting temperature");
getExtruder().heatOn();
}
/* (non-Javadoc)
* @see org.reprap.Printer#calibrate()
*/
public void calibrate() {
}
/* (non-Javadoc)
* @see org.reprap.Printer#calibrate()
*/
public void dispose() {
}
/* (non-Javadoc)
* @see org.reprap.Printer#terminate()
*/
public void terminate() throws Exception {
}
/* (non-Javadoc)
* @see org.reprap.Printer#isCancelled()
*/
public boolean isCancelled() {
if (previewer != null)
return previewer.isCancelled();
return false;
}
public void loadExtruders(Preferences config)
{
for(int i = 0; i < extruderCount; i++)
extruders[i] = extruderFactory(config, i);
extruder = 0;
}
public Extruder extruderFactory(Preferences prefs, int count)
{
return new NullExtruder(prefs, count);
}
/* (non-Javadoc)
* @see org.reprap.Printer#selectMaterial(int)
*/
public void selectExtruder(int materialIndex)
{
if (isCancelled())
return;
if(materialIndex < 0 || materialIndex >= extruderCount)
System.err.println("Selected material (" + materialIndex + ") is out of range.");
else
extruder = materialIndex;
//todo: move back to cartesian snap
//layerPrinter.changeExtruder(extruders[extruder]);
// if (previewer != null)
// previewer.setExtruder(extruders[extruder]);
if (isCancelled())
return;
// TODO Select new material
// TODO Load new x/y/z offsets for the new extruder
}
/* (non-Javadoc)
* @see org.reprap.Printer#selectMaterial(int)
*/
public void selectExtruder(Attributes att) {
for(int i = 0; i < extruderCount; i++)
{
if(att.getMaterial().equals(extruders[i].toString()))
{
selectExtruder(i);
return;
}
}
System.err.println("selectExtruder() - extruder not found for: " + att.getMaterial());
}
/**
* FIXME: Why don't these use round()? - AB.
* @param n
* @return
*/
protected int convertToStepX(double n) {
return (int)((n + extruders[extruder].getOffsetX()) * scaleX);
}
/**
* @param n
* @return
*/
protected int convertToStepY(double n) {
return (int)((n + extruders[extruder].getOffsetY()) * scaleY);
}
/**
* @param n
* @return
*/
protected int convertToStepZ(double n) {
return (int)((n + extruders[extruder].getOffsetZ()) * scaleZ);
}
/**
* @param n
* @return
*/
protected double convertToPositionX(int n) {
return n / scaleX - extruders[extruder].getOffsetX();
}
/**
* @param n
* @return
*/
protected double convertToPositionY(int n) {
return n / scaleY - extruders[extruder].getOffsetY();
}
/**
* @param n
* @return
*/
protected double convertToPositionZ(int n) {
return n / scaleZ - extruders[extruder].getOffsetZ();
}
/* (non-Javadoc)
* @see org.reprap.Printer#getX()
*/
public double getX() {
return currentX;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getY()
*/
public double getY() {
return currentY;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getZ()
*/
public double getZ() {
return currentZ;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getTotalDistanceMoved()
*/
public double getTotalDistanceMoved() {
return totalDistanceMoved;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getTotalDistanceExtruded()
*/
public double getTotalDistanceExtruded() {
return totalDistanceExtruded;
}
/**
* @param x
* @param y
* @return segment length in millimeters
*/
public double segmentLength(double x, double y) {
return Math.sqrt(x*x + y*y);
}
/* (non-Javadoc)
* @see org.reprap.Printer#getTotalElapsedTime()
*/
public double getTotalElapsedTime() {
long now = System.currentTimeMillis();
return (now - startTime) / 1000.0;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getExtruder(String)
*/
public Extruder getExtruder(String name)
{
for(int i = 0; i < extruderCount; i++)
if(name.equals(extruders[i].toString()))
return extruders[i];
return null;
}
/* (non-Javadoc)
* @see org.reprap.Printer#getExtruder()
*/
public Extruder getExtruder()
{
return extruders[extruder];
}
/* (non-Javadoc)
* @see org.reprap.Printer#getExtruder()
*/
public Extruder[] getExtruders()
{
return extruders;
}
/**
* Extrude for the given time in milliseconds, so that polymer is flowing
* before we try to move the extruder.
*/
public void printStartDelay(long msDelay) {
try
{
extruders[extruder].setExtrusion(extruders[extruder].getExtruderSpeed());
Thread.sleep(msDelay);
// extruders[extruder].setExtrusion(0); // What's this for? - AB
} catch(Exception e)
{
// If anything goes wrong, we'll let someone else catch it.
}
}
/**
* @param startX
* @param startY
* @param startZ
* @param endX
* @param endY
* @param endZ
* @throws ReprapException
* @throws IOException
*/
public void printSegment(double startX, double startY, double startZ,
double endX, double endY, double endZ, boolean turnOff) throws ReprapException, IOException {
moveTo(startX, startY, startZ, true, true);
printTo(endX, endY, endZ, turnOff);
}
/* (non-Javadoc)
* @see org.reprap.Printer#moveTo(double, double, double, boolean, boolean)
*/
public void moveTo(double x, double y, double z, boolean startUp, boolean endUp) throws ReprapException, IOException
{
if (isCancelled()) return;
totalDistanceMoved += segmentLength(x - currentX, y - currentY);
//TODO - next bit needs to take account of startUp and endUp
if (z != currentZ)
totalDistanceMoved += Math.abs(currentZ - z);
currentX = x;
currentY = y;
currentZ = z;
}
/* (non-Javadoc)
* @see org.reprap.Printer#printTo(double, double, double)
*/
public void printTo(double x, double y, double z, boolean turnOff) throws ReprapException, IOException
{
if (previewer != null)
previewer.addSegment(currentX, currentY, currentZ, x, y, z);
if (isCancelled())
return;
double distance = segmentLength(x - currentX, y - currentY);
if (z != currentZ)
distance += Math.abs(currentZ - z);
totalDistanceExtruded += distance;
totalDistanceMoved += distance;
currentX = x;
currentY = y;
currentZ = z;
}
/**
* @param enable
* @throws IOException
*/
public void setCooling(boolean enable) throws IOException {
extruders[extruder].setCooler(enable);
}
/* (non-Javadoc)
* @see org.reprap.Printer#setLowerShell(javax.media.j3d.Shape3D)
*/
public void setLowerShell(BranchGroup ls)
{
previewer.setLowerShell(ls);
}
/* (non-Javadoc)
* @see org.reprap.Printer#setPreviewer(org.reprap.gui.Previewer)
*/
public void setPreviewer(Previewer previewer) {
this.previewer = previewer;
}
/**
* Moves nozzle back and forth over wiper
*/
public void wipeNozzle() throws ReprapException, IOException {
if (getExtruder().getNozzleWipeEnabled() == false)
return;
else
{
Debug.d("Wiping nozzle");
int freq = getExtruder().getNozzleWipeFreq();
int datumX = getExtruder().getNozzleWipeDatumX();
int datumY = getExtruder().getNozzleWipeDatumY();
int stroke = getExtruder().getNozzleWipeStroke();
setFeedrate(getFastFeedrateXY());
// Moves nozzle over wiper
for (int w=0; w < freq; w++)
{
moveTo(50, datumY-(stroke/2), currentZ, false, false);
moveTo(datumX, datumY-(stroke/2), currentZ, false, false);
moveTo(datumX, datumY+(stroke/2), currentZ, false, false);
moveTo(50, datumY+(stroke/2), currentZ, false, false);
}
}
}
public void setFeedrate(double feedrate)
{
currentFeedrate = feedrate;
}
public double getFeedrate()
{
return currentFeedrate;
}
public double getFastFeedrateXY()
{
return fastFeedrateXY;
}
/* (non-Javadoc)
* @see org.reprap.Printer#setZManual()
*/
public void setZManual() throws Exception {
setZManual(0.0);
}
/* (non-Javadoc)
* @see org.reprap.Printer#setZManual(double)
*/
public void setZManual(double zeroPoint) throws Exception {
}
// public double getExtrusionSize() {
// return extrusionSize;
// }
// public double getExtrusionHeight() {
// return extrusionHeight;
// }
// public double getInfillWidth() {
// return infillWidth;
// }
/**
* Get the length before the end of a track to turn the extruder off
* to allow for the delay in the stream stopping.
*/
// public double getOverRun() { return overRun; }
/**
* Get the number of milliseconds to wait between turning an
* extruder on and starting to move it.
*/
// public long getDelay() { return delay; }
/* (non-Javadoc)
* @see org.reprap.Printer#homeToZeroX()
*/
public void homeToZeroX() throws ReprapException, IOException {
currentX = 0.0;
}
/* (non-Javadoc)
* @see org.reprap.Printer#homeToZeroY()
*/
public void homeToZeroY() throws ReprapException, IOException {
currentY = 0.0;
}
public void homeToZeroZ() throws ReprapException, IOException {
currentZ = 0.0;
}
public void home(){
currentX = currentY = currentZ = 0.0;
}
public double getMaxFeedrateX()
{
return maxFeedrateX;
}
public double getMaxFeedrateY()
{
return maxFeedrateY;
}
public double getMaxFeedrateZ()
{
return maxFeedrateZ;
}
}
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