/
primetower.js
346 lines (284 loc) · 11.5 KB
/
primetower.js
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var PrimeTower = function (overrides) {
if(!overrides) overrides = {};
var DEBUGMODE = DEBUGMODE ? overrides.DEBUGMODE : false;
filamentDiameter = 1.75,
nozzleDiameter = overrides.nozzleDiameter > 0 ? nozzleDiameter : 0.4;
linewidth = nozzleDiameter * 1.2,
flowMultipler = 1.2,
extrusionMultipler = 1,
baseLayerExtrusionMultipler = 1.2,
currentlayerheight = overrides.firstLayerHeight > 0 ? overrides.firstLayerHeight : 0.2,
zOffset = overrides.zOffset ? overrides.zOffset : 0,
towerwidth = 5.6, //minimum tower width, if the total extrusion length cannot be fulfilled, program will increase the width to accommodate
towerlength = 90, //always fulfill the tower length
bridges = 4,
bridgehead = 1.92, //the minimum width of a bridgehead is 2x linewidth
minimumPurgeVolume = 150,
defaultSpeed = overrides.defaultSpeed ? overrides.defaultSpeed : 3000,
firslayerspeed = 900,
slowLayer = 1, //layer before 1mm will be slowed
currentlayerspeed = 900,
centeriszero = true,
bedXsize = 180,
bedYsize = 180,
originX = 0,
originY = 0,
centerX = 0,
centerY = 0,
retraction = overrides.retraction ? overrides.retraction : 3,
retractionSpeed = overrides.retractionSpeed > 0 ? overrides.retractionSpeed : 1800,
prime = overrides.prime ? overrides.prime : 0,
wipe = 2,
wipeSpeed = 4800,
buffer = "";
var filamentpermm = Math.pow(linewidth/2, 2) * Math.PI * 0.1 * flowMultipler;// (0.01662945).toFixed(5), //constant, based on .1 layer height
var minimumPurgeLength = Math.floor(minimumPurgeVolume / (Math.PI * Math.pow(filamentDiameter/2, 2))); //based on e3d v6 clone 1.75mm
if(typeof wipe != 'number' || wipe < 0){
wipe = 1;
}
var totalBridgeHeads = bridges + 1,
bridgeLength = (towerlength - (bridgehead * totalBridgeHeads)) / bridges;
//end of vars
if(centeriszero){
if(DEBUGMODE) console.log("Center is zero");
originX = (-towerwidth / 2);
originY = (-towerlength / 2);
} else {
centerX = bedXsize / 2;
centerY = bedYsize / 2;
originX = towerwidth / 2;
originY = towerlength / 2;
if(DEBUGMODE) console.log("Center is not zero");
if(DEBUGMODE) console.log("x: " + (bedXsize/2));
if(DEBUGMODE) console.log("y: " + (bedYsize/2));
originX = bedXsize/2 - originX;
originY = bedYsize/2 - originY;
}
this.render = function(renderOverrides){
var isBaseLayer = renderOverrides.isBaseLayer,
currentZ = renderOverrides.currentZ,
offsetX = renderOverrides.offsetX,
offsetY = renderOverrides.offsetY,
rotation = renderOverrides.rotation,
infillableFilamentLength = renderOverrides.infillableFilamentLength,
forceSaving = renderOverrides.forceSaving,
layerThickness = renderOverrides.layerThickness,
forceExtraPrime = renderOverrides.forceExtraPrime,
extraPrime = renderOverrides.extraPrime,
xyTravelSpeed = renderOverrides.xyTravelSpeed ? renderOverrides.xyTravelSpeed : 4800;
buffer = ";Prime tower begins\n; prime pillar\n";
if(isBaseLayer){
currentlayerspeed = firslayerspeed;
layerThickness = layerThickness * baseLayerExtrusionMultipler;
} else {
currentlayerspeed = defaultSpeed;
if(currentZ < slowLayer){
currentlayerspeed = Math.floor(defaultSpeed * currentZ / slowLayer);
layerThickness = layerThickness * baseLayerExtrusionMultipler;
}
}
currentlayerheight = ((currentZ + zOffset) * 1).toFixed(2);
var filamentToBePurged = forceSaving ? 0 : minimumPurgeLength - infillableFilamentLength,
x = 0,
y = 0,
z = currentlayerheight,
e = 0,
eLength = 0,
savingMode = false,
flowRate = 1;
if(DEBUGMODE) console.log("minimum filament to be purged: " + filamentToBePurged);
if(forceSaving || infillableFilamentLength > 0){
savingMode = true;
}
if(isBaseLayer || currentZ < slowLayer){
filamentToBePurged = minimumPurgeLength;
savingMode = true;
}
var totalPrime = prime;
if(forceExtraPrime){
totalPrime += extraPrime;
}
buffer += "G92 E0\n"; // zeroing e length.
buffer += 'G1 Z' + currentlayerheight + " F1500\n"; // first layer z height
buffer += "G1 E" + totalPrime + " F1500\n"; // prime a little
buffer += "G92 E0\n"; // zeroing e length.
if(currentZ < slowLayer){
buffer += "M106 S0\n";
}
drawUntil((originX + towerwidth).toFixed(3), originY, extrusion = 0, xyTravelSpeed, "init point");
var drawX = 0,
drawY = 0,
drawE = 0;
//with saving mode we will generate bridgeheads
if(savingMode){
if(DEBUGMODE) console.log("savingMode detected");
for(var i = 0; i < totalBridgeHeads; i++){
for(var b = 0, c = 0; b <= bridgehead; b += linewidth, c++){
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
drawX = ((originX + towerwidth - linewidth * 2).toFixed(3)),
drawY = ((c * linewidth + bridgeLength * i + i * bridgehead + originY - linewidth).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "b=" + b + ", i=" + i + ", c=" + c);
e += getExtrusionLength(towerwidth, layerThickness);
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
drawX = ((originX).toFixed(3)),
drawY = ((c * linewidth + bridgeLength * i + i * bridgehead + originY - linewidth).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "b=" + b + ", i=" + i + ", c=" + c);
if( !(i == totalBridgeHeads - 1 && b == bridgehead - linewidth)){
e += getExtrusionLength(towerwidth, layerThickness);
}
if(b == bridgehead){
if(DEBUGMODE) console.log("bridgehead length: " + bridgehead);
}
}
}
}
for(var oddity = 0; x <= towerwidth || e < filamentToBePurged; x += linewidth, oddity++){
if(e > filamentToBePurged){
if(DEBUGMODE) console.log("Purging length accomplished!");
break;
}
if(x==0 && !savingMode){
// console.log("here11");
// fs.appendFileSync(fd, ";here11\n");
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
drawX = ((x + originX + towerwidth - linewidth).toFixed(3)),
drawY = ((y + originY).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "set starting point");
e += getExtrusionLength(towerwidth, layerThickness);
}
if(x==linewidth && !savingMode){
// console.log("here");
// fs.appendFileSync(fd, ";Here\n");
e += getExtrusionLength(towerwidth, layerThickness);
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
drawX = ((x + originX + towerwidth).toFixed(3)),
drawY = ((y + originY + towerlength - linewidth).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX - linewidth *2, drawY, drawE, currentlayerspeed, "draw second outline");
drawUntil(drawX-towerwidth, drawY, drawE, currentlayerspeed);
e += getExtrusionLength(towerlength, layerThickness);
}
if(!savingMode){
var gotoX = ((x + originX).toFixed(3)),
gotoY = ((y + originY).toFixed(3)),
gotoE = (e).toFixed(5);
drawUntil(gotoX, gotoY, gotoE, currentlayerspeed);
e += getExtrusionLength(towerlength, layerThickness);
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
drawX = ((x + originX).toFixed(3)),
drawY = ((y + originY + towerlength - linewidth).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed);
} else{
if(oddity % 2 == 0){
for(var i = totalBridgeHeads -1; i > 0; i--){
drawX = ((x + originX).toFixed(3)),
drawY = ((bridgeLength * i + bridgehead * i + originY - linewidth/2).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "reversing start");
e += getExtrusionLength(bridgeLength + linewidth, layerThickness);
drawX = ((x + originX).toFixed(3)),
drawY = ((bridgeLength * (i-1) + bridgehead * (i) + originY - linewidth/2).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "i =" + i);
if(DEBUGMODE) console.log("Reverse E length: " + eLength + ", Absolute E: " + e.toFixed(5));
}
} else {
for(var i = 0; i < totalBridgeHeads - 1; i++){
drawX = ((x + originX).toFixed(3)),
drawY = ((bridgeLength * i + bridgehead * (i+1) + originY - linewidth/2).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed);
e += getExtrusionLength(bridgeLength + linewidth, layerThickness);
drawX = ((x + originX).toFixed(3)),
drawY = ((bridgeLength * (i+1) + bridgehead * (i+1) + originY + linewidth/2).toFixed(3)),
drawE = (e).toFixed(5);
drawUntil(drawX, drawY, drawE, currentlayerspeed, "i =" + i);
if(DEBUGMODE) console.log("E length: " + eLength + ", Absolute E: " + e.toFixed(5));
}
}
}
if(DEBUGMODE) console.log("e > filamentToBePurged: " + (e > filamentToBePurged));
if(DEBUGMODE) console.log("x > (towerwidth - linewidth): " + (x > (towerwidth - linewidth)));
if(DEBUGMODE) console.log("x: " + x * 1);
if(DEBUGMODE) console.log("(towerwidth - linewidth): " + (towerwidth - linewidth) *1);
if(e > filamentToBePurged && x *1 >= (towerwidth - linewidth) * 1){
if(DEBUGMODE) console.log("end");
if(isBaseLayer){
towerwidth = x.toFixed(2) * 1 + linewidth;
if(DEBUGMODE) console.log("towerwidth: " + towerwidth);
}
}
}
var wipeY1 = originY, wipeY2;
if( Math.abs(originY - drawY) > Math.abs(towerlength + originY - drawY) ){
if(DEBUGMODE) console.log("closer to -Y");
wipeY1 = originY + towerlength - linewidth;
wipeY2 = originY + linewidth;
} else {
wipeY1 = originY + linewidth;
wipeY2 = originY + towerlength - linewidth;
if(DEBUGMODE) console.log("closer to +Y");
}
if(wipe > 0){
var smallRetraction = (retraction / wipe) * -1;
for(var w=0; w < wipe; w++){
if(DEBUGMODE) console.log('wipe #' + w);
buffer += "G92 E0\n"; // zeroing e length.
drawUntil( originX, wipeY1, 0, wipeSpeed);
drawUntil( originX + towerwidth - linewidth, wipeY2, smallRetraction, wipeSpeed);
}
}
buffer += "G92 E0\n";
buffer += ";Prime tower ends\n";
return {gcode: buffer, originXY: applyTransfromations(originX, originY)};
function drawUntil(x, y, e, speed, comment){
if(DEBUGMODE && comment && comment.length > 0){
comment = ';' + comment;
} else {
comment = '';
}
var xy = applyTransfromations(x,y);
x = (xy[coordX = 0]);
y = (xy[coordY = 1]);
if(e == 0){
buffer += 'G1 X' + x + ' Y' + y + " F"+ speed + comment + "\n";
} else {
buffer += 'G1 X' + x + ' Y' + y + ' E' + e + " F"+ speed + comment + "\n";
}
}
function getExtrusionLength(distance, layerThickness){
eLength = ((filamentpermm * layerThickness / 0.1 * Math.abs(distance) * extrusionMultipler).toFixed(5)) * 1;
return eLength;
}
function fadeOffset(zOffset){
var fade = 0.02
if(zOffset - fade < 0){
return 0;
}
return zOffset - fade;
}
function rotate(cx, cy, x, y, angle) {
var radians = (Math.PI / 180) * angle,
cos = Math.cos(radians),
sin = Math.sin(radians),
nx = (cos * (x - cx)) + (sin * (y - cy)) + cx,
ny = (cos * (y - cy)) - (sin * (x - cx)) + cy;
return [nx, ny];
}
function applyTransfromations(x,y){
x = x * 1 + offsetX;
y = y * 1 + offsetY;
if(rotation != 0){
var rotated = rotate(centerX, centerY, x*1,y*1, rotation);
x = rotated[0].toFixed(3);
y = rotated[1].toFixed(3);
}
return [x, y];
}
}
};
module.exports = PrimeTower;