Printer.py

   1 import serial, time
   2 from settings import frameSettings
   3 from utils import MatrixConversion, Geometry, Gcode, PrinterUtils
   4
   5 class Printer():
   6         def __init__(self, PrinterCOM, bedSize):
   7                 self.COM = PrinterCOM
   8                 self.max_X, self.max_Y = bedSize
   9                 self.position = (0,0)
  10                 self.sendSerial = False
  11                 self.settings = frameSettings.frameSettings()
  12                 self.coeffs = MatrixConversion.find_coeffs(self.settings.image_frame.corners, self.settings.laser_frame.corners)
  13                 try: self.printerSerial = serial.Serial(PrinterCOM, 115200, timeout = 25)
  14                 except: print("Connection Failure")
  15
  16
  17         def writePoint(self, xy):
  18                 x,y = xy
  19                 x = self.max_X - x
  20                 self.position = xy
  21                 command = 'G0 F5000 X%d Y%d\n'%(x, y) + 'G4 P1000\n' + 'G0 F5000 X0 Y0\n'
  22
  23                 if self.printerSerial is not None and Geometry.pointWithinBounds(xy, (self.max_X, self.max_Y)):
  24                         self.printerSerial.write(command.encode())
  25                         return 1
  26                 else:
  27                         return 0
  28
  29         def writePackage(self, package):
  30                 if self.printerSerial is not None:
  31                         self.printerSerial.write(package.encode())
  32
  33         def adjustXY(self, xy):
  34                 printer_points = [(self.max_X,self.max_Y), (0,self.max_Y), (0,0), (self.max_X,0)]
  35                 self.coeffs = MatrixConversion.find_coeffs(self.settings.laser_frame.corners, printer_points)
  36                 return MatrixConversion.warped_xy((xy), self.coeffs)
  37
  38         def write(self, xy):
  39                 self.writePoint(self.adjustXY(xy))
  40
  41         #Cannot send packages with over 3 locations at once,
  42         #it overflows the printer's serial buffer because it's a peice of dog shit
  43         def sendPackage(self, points):
  44                 package = Gcode.buildGcodePackage(list(map(self.adjustXY, points)), (self.max_X, self.max_Y))
  45                 self.writePackage(package)
  46
  47         def packageIsExecuting(self):
  48                 #Query the printer for position
  49                 #self.printerSerial.reset_input_buffer()
  50                 self.printerSerial.write('M114'.encode())
  51                 printerData = ''
  52                 while self.printerSerial.in_waiting > 0:
  53                         printerData += str(self.printerSerial.readline())
  54                 if 'Count' in printerData:
  55                         headPosition = PrinterUtils.parsePrinterXY(printerData)
  56                         return not PrinterUtils.isHomed(headPosition)
  57                 return True
  58
  59         def raiseZ(self):
  60                 self.printerSerial.write('G0 F5000 Z50\n'.encode())
  61
  62         def callibrate(self):
  63                 self.printerSerial.write('G28\n'.encode())
  64
  65         def home(self):
  66                 self.printerSerial.write('G0 F5000 X0 Y0\n'.encode())
  67
  68         def read(self):
  69                 print(self.printerSerial.readline())