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cnc.py

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+import serial
+import time
+from tkinter import *
+import serial.tools.list_ports
+from tkinter import filedialog as fd
+
+grbl = 0
+i = 10
+GCODE = 0
+AXIS = 'X'
+
+def grblConnect2():
+    global grbl
+
+    #Serial Connection
+    locations=['/dev/ttyACM0','/dev/ttyUSB0','/dev/ttyUSB1','/dev/ttyACM1','/dev/ttyACM2','/dev/ttyACM3',
+        '/dev/ttyS0','/dev/ttyS1','/dev/ttyS2','/dev/ttyS3']
+    
+    for device in locations:
+            try:
+                #print([comport.device for comport in serial.tools.list_ports.comports()])
+                print ("Trying...",device)
+                grbl = serial.Serial(port= device, baudrate= 115200, timeout =.1)
+                #grbl.open()
+                #print(grbl.readline())
+                grbl.write(str.encode("\r\n\r\n"))
+                time.sleep(2)   # Wait for grbl to initialize
+                grbl.flushInput()  # Flush startup text in serial input
+                connect_ser.config(bg='green')
+                #print("connected")
+
+                break
+            except:
+                #print ("Failed to connect on",device)
+                grbl = 0
+
+    # Stream g-code to grbl
+    #Stream GCODE from -https://onehossshay.wordpress.com/2011/08/26/grbl-a-simple-python-interface/-
+
+def grblConnectDebug():
+    global grbl
+    
+    grbl = serial.Serial(port= '/dev/ttyACM0', baudrate= 115200, timeout =.1)
+    #grbl.close()
+    #print(grbl.readline())
+    grbl.write(str.encode("\r\n\r\n"))
+    time.sleep(2)   # Wait for grbl to initialize
+    grbl.flushInput()  # Flush startup text in serial input
+    #print("connected")
+    connect_ser.config(bg='green')
+    #print(grbl.read())
+    infoScreen(grbl.read())
+    return grbl
+
+def jogWrite(grbl,AXIS, CMD, scale):   
+    DECIMAL = [0.1,1,10,100]
+    scale = increments.get()
+    MOVE = int(CMD) * DECIMAL[scale -1]       
+    grbl_command = ('G91'+'G0' +' ' + AXIS + str(MOVE) + ' '+ 'F100')    
+    #print(grbl_command)
+    grbl.write(str.encode(grbl_command + '\n'))
+    grbl_out = grbl.readline() # Wait for grbl response with carriage return
+    #print(grbl_out.strip())
+    infoScreen(grbl_command)
+    infoScreen(grbl_out)
+
+def terminalWrite(grbl):
+    grbl_command = terminal.get()
+    #print(grbl_command)
+    grbl.write(str.encode(grbl_command + '\n'))
+    grbl_out = grbl.readline() # Wait for grbl response with carriage return
+    #print(grbl_out.strip())
+    infoScreen(grbl_out)
+
+def infoScreen(data):
+    global i
+    terminalFrame = Frame(terminal_recv, bg = 'white')
+    terminal_recv.create_window(10,i, window = terminalFrame, anchor = 'nw')
+    Label(terminalFrame, text = data, font = ('Calibri',10), bg ='white', fg ='black').pack()
+    i += 22
+    if i >=400:
+        i=10
+        terminal_recv.delete("all")
+
+def openGCODE():
+    global GCODE
+
+    filetypes = (('GCODE', '*.nc'),('All files', '*.*'))
+    GCODE = fd.askopenfile(title='Open a file', initialdir='/home/thomash/Environments/cnc/', filetypes=filetypes)
+    
+    if GCODE != 0:
+        fopen.config(bg='green')
+    else:
+        fopen.config(bg = 'grey')
+      
+    build_xy = findEnvelope()
+    mill_table.create_rectangle(build_xy[0],build_xy[1], fill = 'blue', stipple = 'gray75')     
+    
+def findEnvelope(): #get the max used Buildspace and position of the job
+    x_coords = []
+    y_coords = []    
+    coord_max = [0,1]
+    coord_min = [0,1]   
+
+    for line in GCODE:        
+       
+        l = line.strip(line) # Strip all EOL characters for streaming         
+        l = line.replace('X', '')
+        l2 = l.replace('Y', '')        
+        l2 = l2.split()     
+        
+        if len(l2) == 3:
+            x = l2[1]
+            x_coords.append(float(x))
+            y = l2[2]
+            y_coords.append(float(y))        
+
+    x_coords.sort()
+    y_coords.sort()
+    coord_max[0] = max(x_coords) +50
+    coord_max[1] = 350 - max(y_coords) #invertierte Buildplattform mit 0 unten links statt oben links
+    coord_min[0] = min(x_coords) +50
+    coord_min[1] = 350 - min(y_coords)  
+
+    return coord_min, coord_max
+
+def grblWrite(grbl):   
+    #print("write1")
+    GCODE.seek(0)                
+    for line in GCODE:
+        #print("write")
+        l = line.strip(line) # Strip all EOL characters for streaming
+        l = line.split(";",0)      
+        grbl.write(str.encode(l[0]+ '\n')) # Send g-code block to grbl
+        grbl_out = grbl.readline() # Wait for grbl response with carriage return        
+        infoScreen(grbl_out.strip())
+
+def grblClose(grbl):
+    # Close file and serial port
+    #f.close()
+    try:
+        grbl.close()
+        print("closed")
+        connect_ser.config(bg='grey')
+    except:
+        print("Connection still open")
+
+#GUI Main
+buttonsize_x = 5
+buttonsize_y = 3
+increments = 0
+
+root = Tk()
+root.title('touchCNC')
+root.geometry('1024x600+0+0')
+
+increments = IntVar()
+
+left = Button(root, text="-X",  width = buttonsize_x, height = buttonsize_y, command = lambda:jogWrite(grbl, 'X', '-1', increments))
+right = Button(root, text="+X",width = buttonsize_x, height = buttonsize_y,command = lambda:jogWrite(grbl, 'X', '1', increments))
+up = Button(root, text="+Y", width = buttonsize_x, height = buttonsize_y,command = lambda:jogWrite(grbl, 'Y', '1', increments))
+down = Button(root, text="-Y",width = buttonsize_x, height = buttonsize_y,command = lambda:jogWrite(grbl, 'Y', '-1', increments))
+z_up = Button(root, text="+Z",width = buttonsize_x, height = buttonsize_y,command = lambda:jogWrite(grbl, 'Z', '1', increments) )
+z_down = Button(root, text="-Z",width = buttonsize_x, height = buttonsize_y,command = lambda:jogWrite(grbl, 'Z', '-1', increments))
+zero_x = Button(root, text="zero X",width = buttonsize_x, height = buttonsize_y)
+zero_y = Button(root, text="zero Y",width = buttonsize_x, height = buttonsize_y)
+zero_z = Button(root, text="zero Z",width = buttonsize_x, height = buttonsize_y)
+zero_all =Button(root, text="zero All",width = buttonsize_x, height = buttonsize_y)
+
+connect_ser = Button(root, text="Cnnct",width = buttonsize_x, height = buttonsize_y, command = grblConnect2, bg = 'grey')
+discon_ser = Button(root, text="Dsconct",width = buttonsize_x, height = buttonsize_y, command = lambda:grblClose(grbl))
+start = Button(root, text="START",width = buttonsize_x, height = buttonsize_y, bg = 'red', command = lambda: grblWrite(grbl))
+stop = Button(root, text="STOP",width = buttonsize_x, height = buttonsize_y, bd= 3)
+pause = Button(root, text="PAUSE",width = buttonsize_x, height = buttonsize_y, bg = '#007fff')
+fopen = Button(root, text="GCODE",width = buttonsize_x , height = buttonsize_y, bg = 'grey', command = openGCODE)
+
+spindle = Button(root, text="Spindle",width = buttonsize_x, height = buttonsize_y)
+coolant = Button(root, text="Coolant",width = buttonsize_x, height = buttonsize_y)
+tool = Button(root, text="Tool",width = buttonsize_x, height = buttonsize_y)
+macro = Button(root, text="Macro1",width = buttonsize_x, height = buttonsize_y)
+
+step_incr1 = Radiobutton(root, text= '0,1', value = 1 , variable = increments,width = buttonsize_x, height = buttonsize_y, indicatoron = 0 )
+step_incr2 = Radiobutton(root, text= '1', value = 2 , variable = increments,width = buttonsize_x, height = buttonsize_y, indicatoron = 0 )
+step_incr3 = Radiobutton(root, text= '10', value = 3 , variable = increments,width = buttonsize_x, height = buttonsize_y, indicatoron = 0 )
+step_incr4 = Radiobutton(root, text= '100', value = 4 , variable = increments,width = buttonsize_x, height = buttonsize_y, indicatoron = 0 )
+step_incr2.select()
+
+terminal = Entry(root, width =8, text="GCODE")
+terminal_send = Button(root, text="SEND",width = buttonsize_x, height = buttonsize_y, bd= 3, command = lambda: terminalWrite(grbl))
+terminal_recv = Canvas(root, width = 200, height =400, bg = 'white')
+
+show_ctrl_x_label = Label(root,text = "X - POSITION")
+show_ctrl_y_label = Label(root,text = "Y - POSITION")
+show_ctrl_z_label = Label(root,text = "Z - POSITION")
+show_ctrl_x =Entry(root, text = "X - POSITION", width = 5)
+show_ctrl_y =Entry(root, text = "Y - POSITION", width = 5)
+show_ctrl_z =Entry(root, text = "Z - POSITION", width = 5)
+
+feed_control = Scale(root, orient = HORIZONTAL, length = 400, label = "Feedrate",tickinterval = 20)
+
+#Milling Area and Gcode preview with grid generation
+
+mill_table= Canvas(root, width= 400, height = 400, bg = 'grey')
+try:
+    meister = PhotoImage(file='meister.png', width =400, height = 400)
+    mill_table.create_image(200,200,image = meister, anchor =NW)
+
+except:
+    infoScreen("Couldn't load background")
+
+mill_table.create_rectangle(50,50,350,350, fill ='white')
+mill_table.create_text(200,25,text = 'Fräsbereich 300mm x 300mm')
+
+for x in range(50,350,50):
+    mill_table.create_text(x,400- x, text = x-50)
+
+for x in range(0,400,50):
+    for y in range(0,400,50):
+        gitter_x = mill_table.create_line(x,0,x,400)
+        gitter_y = mill_table.create_line(0,y,400,y)
+
+left.grid(row=1, column=0, padx=3, pady=2)
+right.grid(row=1, column=2,padx=3, pady=2)
+up.grid(row=0, column=1, padx=3, pady=10)
+down.grid(row=1, column=1,padx=3, pady=2)
+z_up.grid(row=0, column=3,padx=10, pady=10)
+z_down.grid(row=1, column=3,padx=10, pady=2)
+
+step_incr2.select()
+
+step_incr1.grid(row=2, column=0,padx=3, pady=10)
+step_incr2.grid(row=2, column=1,padx=3, pady=10)
+step_incr3.grid(row=2, column=2,padx=3, pady=10)
+step_incr4.grid(row=2, column=3,padx=3, pady=10)
+
+show_ctrl_x_label.grid(row=3, column=0,padx=3, pady=10, columnspan =2)
+show_ctrl_y_label.grid(row=4, column=0,padx=3, pady=10, columnspan =2)
+show_ctrl_z_label.grid(row=5, column=0,padx=3, pady=10, columnspan =2)
+
+show_ctrl_x.grid(row=3, column=2,padx=3, pady=10, columnspan =1)
+show_ctrl_y.grid(row=4, column=2,padx=3, pady=10, columnspan =1)
+show_ctrl_z.grid(row=5, column=2,padx=3, pady=10, columnspan =1)
+
+zero_x.grid(row=6, column=0,padx=10, pady=10)
+zero_y.grid(row=6, column=1,padx=10, pady=10)
+zero_z.grid(row=6, column=2,padx=10, pady=10)
+zero_all.grid(row=6, column=3,padx=10, pady=10)
+connect_ser.grid(row=7, column=0,padx=10, pady=10)
+discon_ser.grid(row=7, column=1,padx=10, pady=10)
+start.grid(row=7, column=2,padx=10, pady=10)
+stop.grid(row=7, column=3,padx=10, pady=10)
+pause.grid(row=8, column=2,padx=10, pady=10, columnspan = 1)
+fopen.grid(row=8, column=0,padx=10, pady=10)
+
+spindle.grid(row=7, column=4,padx=1, pady=10)
+coolant.grid(row=7, column=5,padx=1, pady=10)
+tool.grid(row=7, column=6,padx=1, pady=10)
+macro.grid(row=7, column=7,padx=1, pady=10)
+
+terminal.grid(row = 7, column = 8, padx =2, pady =10)
+terminal_send.grid(row = 7, column = 9, padx =2, pady =10)
+terminal_recv.grid(row = 0, column = 8, padx =10, pady =10,rowspan = 7, columnspan =2)
+
+feed_control.grid(row = 8, column = 4, columnspan =4)
+
+mill_table.grid(row=0, column=4,padx=10, pady=10,columnspan = 4, rowspan = 7)
+
+root.mainloop()
+