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gcodepreview.py
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#!/usr/bin/env python
#icon "C:\Program Files\PythonSCAD\bin\openscad.exe" --trust-python
#Currently tested with https://www.pythonscad.org/downloads/PythonSCAD-2024.12.29-x86-64-Installer.exe and Python 3.11
#gcodepreview 0.8, for use with PythonSCAD,
#if using from PythonSCAD using OpenSCAD code, see gcodepreview.scad
import sys
# add math functions (using radians by default, convert to degrees where necessary)
import math
# getting openscad functions into namespace
#https://github.com/gsohler/openscad/issues/39
try:
from openscad import *
except ModuleNotFoundError as e:
print("OpenSCAD module not loaded.")
def pygcpversion():
thegcpversion = 0.8
return thegcpversion
class gcodepreview:
def __init__(self, #basefilename = "export",
generatepaths = False,
generategcode = False,
generatedxf = False,
# stockXwidth = 25,
# stockYheight = 25,
# stockZthickness = 1,
# zeroheight = "Top",
# stockzero = "Lower-left",
# retractheight = 6,
# currenttoolnum = 102,
# toolradius = 3.175,
# plunge = 100,
# feed = 400,
# speed = 10000
):
"""
Initialize gcodepreview object.
Parameters
----------
generatepaths : boolean
Determines if toolpaths will be stored internally or returned directly
generategcode : boolean
Enables writing out G-code.
generatedxf : boolean
Enables writing out DXF file(s).
Returns
-------
object
The initialized gcodepreview object.
"""
# self.basefilename = basefilename
if (generatepaths == 1):
self.generatepaths = True
if (generatepaths == 0):
self.generatepaths = False
else:
self.generatepaths = generatepaths
if (generategcode == 1):
self.generategcode = True
if (generategcode == 0):
self.generategcode = False
else:
self.generategcode = generategcode
if (generatedxf == 1):
self.generatedxf = True
if (generatedxf == 0):
self.generatedxf = False
else:
self.generatedxf = generatedxf
# self.stockXwidth = stockXwidth
# self.stockYheight = stockYheight
# self.stockZthickness = stockZthickness
# self.zeroheight = zeroheight
# self.stockzero = stockzero
# self.retractheight = retractheight
# self.currenttoolnum = currenttoolnum
# self.toolradius = toolradius
# self.plunge = plunge
# self.feed = feed
# self.speed = speed
# global toolpaths
# if (openscadloaded == True):
# self.toolpaths = cylinder(0.1, 0.1)
self.generatedxfs = False
def checkgeneratepaths():
return self.generatepaths
# def myfunc(self, var):
# self.vv = var * var
# return self.vv
#
# def getvv(self):
# return self.vv
#
# def checkint(self):
# return self.mc
#
# def makecube(self, xdim, ydim, zdim):
# self.c=cube([xdim, ydim, zdim])
#
# def placecube(self):
# output(self.c)
#
# def instantiatecube(self):
# return self.c
def xpos(self):
# global mpx
return self.mpx
def ypos(self):
# global mpy
return self.mpy
def zpos(self):
# global mpz
return self.mpz
# def tpzinc(self):
# global tpzinc
# return self.tpzinc
def setxpos(self, newxpos):
# global mpx
self.mpx = newxpos
def setypos(self, newypos):
# global mpy
self.mpy = newypos
def setzpos(self, newzpos):
# global mpz
self.mpz = newzpos
# def settpzinc(self, newtpzinc):
# global tpzinc
# self.tpzinc = newtpzinc
def initializemachinestate(self):
# global mpx
self.mpx = float(0)
# global mpy
self.mpy = float(0)
# global mpz
self.mpz = float(0)
# global tpz
# self.tpzinc = float(0)
# global currenttoolnum
self.currenttoolnum = 102
# global currenttoolshape
self.currenttoolshape = cylinder(12.7, 1.5875)
self.rapids = self.currenttoolshape
self.retractheight = 53.0
def setupstock(self, stockXwidth,
stockYheight,
stockZthickness,
zeroheight,
stockzero,
retractheight):
"""
Set up blank/stock for material and position/zero.
Parameters
----------
stockXwidth : float
X extent/dimension
stockYheight : float
Y extent/dimension
stockZthickness : boolean
Z extent/dimension
zeroheight : string
Top or Bottom, determines if Z extent will be positive or negative
stockzero : string
Lower-Left, Center-Left, Top-Left, Center, determines XY position of stock
retractheight : float
Distance which tool retracts above surface of stock.
Returns
-------
none
"""
self.initializemachinestate()
self.stockXwidth = stockXwidth
self.stockYheight = stockYheight
self.stockZthickness = stockZthickness
self.zeroheight = zeroheight
self.stockzero = stockzero
self.retractheight = retractheight
# global stock
self.stock = cube([stockXwidth, stockYheight, stockZthickness])
#%WRITEGC if self.generategcode == True:
#%WRITEGC self.writegc("(Design File: " + self.basefilename + ")")
self.toolpaths = cylinder(0.1, 0.1)
if self.zeroheight == "Top":
if self.stockzero == "Lower-Left":
self.stock = self.stock.translate([0, 0, -self.stockZthickness])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, 0.00mm, -", str(self.stockZthickness), "mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, ", str(stockYheight), "mm, 0.00mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, 0.00, ", str(self.stockZthickness), ")")
if self.stockzero == "Center-Left":
self.stock = self.stock.translate([0, -stockYheight / 2, -stockZthickness])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, -", str(self.stockYheight/2), "mm, -", str(self.stockZthickness), "mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, ", str(self.stockYheight/2), "mm, 0.00mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, ", str(self.stockYheight/2), ", ", str(self.stockZthickness), ")");
if self.stockzero == "Top-Left":
self.stock = self.stock.translate([0, -self.stockYheight, -self.stockZthickness])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, -", str(self.stockYheight), "mm, -", str(self.stockZthickness), "mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, 0.00mm, 0.00mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, ", str(self.stockYheight), ", ", str(self.stockZthickness), ")")
if self.stockzero == "Center":
self.stock = self.stock.translate([-self.stockXwidth / 2, -self.stockYheight / 2, -self.stockZthickness])
if self.generategcode == True:
self.writegc("(stockMin: -", str(self.stockXwidth/2), ", -", str(self.stockYheight/2), "mm, -", str(self.stockZthickness), "mm)")
self.writegc("(stockMax:", str(self.stockXwidth/2), "mm, ", str(self.stockYheight/2), "mm, 0.00mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", ", str(self.stockXwidth/2), ", ", str(self.stockYheight/2), ", ", str(self.stockZthickness), ")")
if self.zeroheight == "Bottom":
if self.stockzero == "Lower-Left":
self.stock = self.stock.translate([0, 0, 0])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, 0.00mm, 0.00mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, ", str(self.stockYheight), "mm, ", str(self.stockZthickness), "mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, 0.00, 0.00)")
if self.stockzero == "Center-Left":
self.stock = self.stock.translate([0, -self.stockYheight / 2, 0])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, -", str(self.stockYheight/2), "mm, 0.00mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, ", str(self.stockYheight/2), "mm, -", str(self.stockZthickness), "mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, ", str(self.stockYheight/2), ", 0.00mm)");
if self.stockzero == "Top-Left":
self.stock = self.stock.translate([0, -self.stockYheight, 0])
if self.generategcode == True:
self.writegc("(stockMin:0.00mm, -", str(self.stockYheight), "mm, 0.00mm)")
self.writegc("(stockMax:", str(self.stockXwidth), "mm, 0.00mm, ", str(self.stockZthickness), "mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", 0.00, ", str(self.stockYheight), ", 0.00)")
if self.stockzero == "Center":
self.stock = self.stock.translate([-self.stockXwidth / 2, -self.stockYheight / 2, 0])
if self.generategcode == True:
self.writegc("(stockMin: -", str(self.stockXwidth/2), ", -", str(self.stockYheight/2), "mm, 0.00mm)")
self.writegc("(stockMax:", str(self.stockXwidth/2), "mm, ", str(self.stockYheight/2), "mm, ", str(self.stockZthickness), "mm)")
self.writegc("(STOCK/BLOCK, ", str(self.stockXwidth), ", ", str(self.stockYheight), ", ", str(self.stockZthickness), ", ", str(self.stockXwidth/2), ", ", str(self.stockYheight/2), ", 0.00)")
if self.generategcode == True:
self.writegc("G90");
self.writegc("G21");
def setupcuttingarea(self, sizeX, sizeY, sizeZ, extentleft, extentfb, extentd):
self.initializemachinestate()
c=cube([sizeX,sizeY,sizeZ])
c = c.translate([extentleft,extentfb,extentd])
self.stock = c
self.toolpaths = cylinder(0.1, 0.1)
return c
def shiftstock(self, shiftX, shiftY, shiftZ):
self.stock = self.stock.translate([shiftX, shiftY, shiftZ])
def addtostock(self, stockXwidth, stockYheight, stockZthickness,
shiftX = 0,
shiftY = 0,
shiftZ = 0):
addedpart = cube([stockXwidth, stockYheight, stockZthickness])
addedpart = addedpart.translate([shiftX, shiftY, shiftZ])
self.stock = self.stock.union(addedpart)
def settool(self, tn):
# global currenttoolnum
self.currenttoolnum = tn
def currenttoolnumber(self):
# global currenttoolnum
return self.currenttoolnum
# def currentroundovertoolnumber(self):
# global Roundover_tool_num
# return self.Roundover_tool_num
def endmill_square(self, es_diameter, es_flute_length):
return cylinder(r1=(es_diameter / 2), r2=(es_diameter / 2), h=es_flute_length, center = False)
def ballnose(self, es_diameter, es_flute_length):
b = sphere(r=(es_diameter / 2))
s = cylinder(r1=(es_diameter / 2), r2=(es_diameter / 2), h=es_flute_length, center=False)
p = union(b, s)
return p.translate([0, 0, (es_diameter / 2)])
def endmill_v(self, es_v_angle, es_diameter):
es_v_angle = math.radians(es_v_angle)
v = cylinder(r1=0, r2=(es_diameter / 2), h=((es_diameter / 2) / math.tan((es_v_angle / 2))), center=False)
s = cylinder(r1=(es_diameter / 2), r2=(es_diameter / 2), h=((es_diameter * 8) ), center=False)
sh = s.translate([0, 0, ((es_diameter / 2) / math.tan((es_v_angle / 2)))])
return union(v, sh)
def bowl_tool(self, radius, diameter, height):
bts = cylinder(height - radius, diameter / 2, diameter / 2, center=False)
bts = bts.translate([0, 0, radius])
bts = bts.union(cylinder(height, diameter / 2 - radius, diameter / 2 - radius, center=False))
for i in range(90):
# print(math.sin(math.radians(i)))
slice = cylinder((radius / 90), ((diameter / 2 - radius) + radius * math.sin(math.radians(i))), ((diameter / 2 - radius) + radius * math.sin(math.radians(i + 1))), center=False)
bts = hull(bts, slice.translate([0, 0, (radius - radius * math.cos(math.radians(i)))]))
return bts
def tapered_ball(self, es_tip, es_diameter, es_flute_length, es_angle):
b = sphere(r=(es_tip / 2))
s = cylinder(r1=(es_tip / 2), r2=(es_diameter / 2), h=es_flute_length, center=False)
p = union(b, s)
return p.translate([0, 0, (es_tip / 2)])
def flat_V(self, es_tip, es_diameter, es_flute_length, es_angle):
c = cylinder(r1=(es_tip / 2), r2=(es_diameter / 2), h=es_flute_length, center=False)
return c
def keyhole(self, es_diameter, es_flute_length):
return cylinder(r1=(es_diameter / 2), r2=(es_diameter / 2), h=es_flute_length, center=False)
def keyhole_shaft(self, es_diameter, es_flute_length):
return cylinder(r1=(es_diameter / 2), r2=(es_diameter / 2), h=es_flute_length, center=False)
def threadmill(self, minor_diameter, major_diameter, cut_height):
btm = cylinder(r1=(minor_diameter / 2), r2=(major_diameter / 2), h=cut_height, center = False)
top = cylinder(r1=(major_diameter / 2), r2=(minor_diameter / 2), h=cut_height, center = False)
top = top.translate([0, 0, cut_height/2])
tm = btm.union(top)
return tm
def threadmill_shaft(self, diameter, cut_height, height):
shaft = cylinder(r1=(diameter / 2), r2=(diameter / 2), h=height, center = False)
shaft = shaft.translate([0, 0, cut_height/2])
return shaft
def dovetail(self, dt_bottomdiameter, dt_topdiameter, dt_height, dt_angle):
return cylinder(r1=(dt_bottomdiameter / 2), r2=(dt_topdiameter / 2), h= dt_height, center=False)
def currenttool(self):
# global currenttoolshape
return self.currenttoolshape
def toolchange(self, tool_number, speed = 10000):
# global currenttoolshape
self.currenttoolshape = self.endmill_square(0.001, 0.001)
self.settool(tool_number)
if (self.generategcode == True):
self.writegc("(Toolpath)")
self.writegc("M05")
if (tool_number == 201):
self.writegc("(TOOL/MILL, 6.35, 0.00, 0.00, 0.00)")
self.currenttoolshape = self.endmill_square(6.35, 19.05)
elif (tool_number == 102):
self.writegc("(TOOL/MILL, 3.175, 0.00, 0.00, 0.00)")
self.currenttoolshape = self.endmill_square(3.175, 12.7)
elif (tool_number == 112):
self.writegc("(TOOL/MILL, 1.5875, 0.00, 0.00, 0.00)")
self.currenttoolshape = self.endmill_square(1.5875, 6.35)
elif (tool_number == 122):
self.writegc("(TOOL/MILL, 0.79375, 0.00, 0.00, 0.00)")
self.currenttoolshape = self.endmill_square(0.79375, 1.5875)
elif (tool_number == 202):
self.writegc("(TOOL/MILL, 6.35, 3.175, 0.00, 0.00)")
self.currenttoolshape = self.ballnose(6.35, 19.05)
elif (tool_number == 101):
self.writegc("(TOOL/MILL, 3.175, 1.5875, 0.00, 0.00)")
self.currenttoolshape = self.ballnose(3.175, 12.7)
elif (tool_number == 111):
self.writegc("(TOOL/MILL, 1.5875, 0.79375, 0.00, 0.00)")
self.currenttoolshape = self.ballnose(1.5875, 6.35)
elif (tool_number == 121):
self.writegc("(TOOL/MILL, 3.175, 0.79375, 0.00, 0.00)")
self.currenttoolshape = self.ballnose(0.79375, 1.5875)
elif (tool_number == 327):
self.writegc("(TOOL/MILL, 0.03, 0.00, 13.4874, 30.00)")
self.currenttoolshape = self.endmill_v(60, 26.9748)
elif (tool_number == 301):
self.writegc("(TOOL/MILL, 0.03, 0.00, 6.35, 45.00)")
self.currenttoolshape = self.endmill_v(90, 12.7)
elif (tool_number == 302):
self.writegc("(TOOL/MILL, 0.03, 0.00, 10.998, 30.00)")
self.currenttoolshape = self.endmill_v(60, 12.7)
elif (tool_number == 390):
self.writegc("(TOOL/MILL, 0.03, 0.00, 1.5875, 45.00)")
self.currenttoolshape = self.endmill_v(90, 3.175)
elif (tool_number == 374):
self.writegc("(TOOL/MILL, 9.53, 0.00, 3.17, 0.00)")
elif (tool_number == 375):
self.writegc("(TOOL/MILL, 9.53, 0.00, 3.17, 0.00)")
elif (tool_number == 376):
self.writegc("(TOOL/MILL, 12.7, 0.00, 4.77, 0.00)")
elif (tool_number == 378):
self.writegc("(TOOL/MILL, 12.7, 0.00, 4.77, 0.00)")
elif (tool_number == 814):
self.writegc("(TOOL/MILL, 12.7, 6.367, 12.7, 0.00)")
#dt_bottomdiameter, dt_topdiameter, dt_height, dt_angle)
#https://www.leevalley.com/en-us/shop/tools/power-tool-accessories/router-bits/30172-dovetail-bits?item=18J1607
self.currenttoolshape = self.dovetail(12.7, 6.367, 12.7, 14)
#45828
elif (tool_number == 808079):
self.writegc("(TOOL/MILL, 12.7, 6.816, 20.95, 0.00)")
#http://www.amanatool.com/45828-carbide-tipped-dovetail-8-deg-x-1-2-dia-x-825-x-1-4-inch-shank.html
self.currenttoolshape = self.dovetail(12.7, 6.816, 20.95, 8)
elif (tool_number == 56125):#0.508/2, 1.531
self.writegc("(TOOL/CRMILL, 0.508, 6.35, 3.175, 7.9375, 3.175)")
elif (tool_number == 56142):#0.508/2, 2.921
self.writegc("(TOOL/CRMILL, 0.508, 3.571875, 1.5875, 5.55625, 1.5875)")
# elif (tool_number == 312):#1.524/2, 3.175
# self.writegc("(TOOL/CRMILL, Diameter1, Diameter2, Radius, Height, Length)")
elif (tool_number == 1570):#0.507/2, 4.509
self.writegc("(TOOL/CRMILL, 0.17018, 9.525, 4.7625, 12.7, 4.7625)")
#https://www.amanatool.com/45982-carbide-tipped-bowl-tray-1-4-radius-x-3-4-dia-x-5-8-x-1-4-inch-shank.html
elif (tool_number == 45982):#0.507/2, 4.509
self.writegc("(TOOL/MILL, 15.875, 6.35, 19.05, 0.00)")
self.currenttoolshape = self.bowl_tool(6.35, 19.05, 15.875)
elif (tool_number == 204):#
self.writegc("()")
self.currenttoolshape = self.tapered_ball(1.5875, 6.35, 38.1, 3.6)
elif (tool_number == 304):#
self.writegc("()")
self.currenttoolshape = self.tapered_ball(3.175, 6.35, 38.1, 2.4)
elif (tool_number == 501):#
self.writegc("()")
self.currenttoolshape = self.tapered_ball(0.127, 3.175, 2.688, 60)
elif (tool_number == 502):#
self.writegc("()")
self.currenttoolshape = self.tapered_ball(0.127, 3.175, 4.25, 40)
elif (tool_number == 13921):#
self.writegc("()")
self.currenttoolshape = self.flat_V(6.35, 31.75, 12.7, 45)
self.writegc("M6T", str(tool_number))
self.writegc("M03S", str(speed))
def tool_diameter(self, ptd_tool, ptd_depth):
# Square 122, 112, 102, 201
if ptd_tool == 122:
return 0.79375
if ptd_tool == 112:
return 1.5875
if ptd_tool == 102:
return 3.175
if ptd_tool == 201:
return 6.35
# Ball 121, 111, 101, 202
if ptd_tool == 122:
if ptd_depth > 0.396875:
return 0.79375
else:
return ptd_tool
if ptd_tool == 112:
if ptd_depth > 0.79375:
return 1.5875
else:
return ptd_tool
if ptd_tool == 101:
if ptd_depth > 1.5875:
return 3.175
else:
return ptd_tool
if ptd_tool == 202:
if ptd_depth > 3.175:
return 6.35
else:
return ptd_tool
# V 301, 302, 390
if ptd_tool == 301:
return ptd_tool
if ptd_tool == 302:
return ptd_tool
if ptd_tool == 390:
return ptd_tool
# Keyhole
if ptd_tool == 374:
if ptd_depth < 3.175:
return 9.525
else:
return 6.35
if ptd_tool == 375:
if ptd_depth < 3.175:
return 9.525
else:
return 8
if ptd_tool == 376:
if ptd_depth < 4.7625:
return 12.7
else:
return 6.35
if ptd_tool == 378:
if ptd_depth < 4.7625:
return 12.7
else:
return 8
# Dovetail
if ptd_tool == 814:
if ptd_depth > 12.7:
return 6.35
else:
return ptd_tool
if ptd_tool == 808079:
if ptd_depth > 20.95:
return 6.816
else:
return ptd_tool
# Bowl Bit
#https://www.amanatool.com/45982-carbide-tipped-bowl-tray-1-4-radius-x-3-4-dia-x-5-8-x-1-4-inch-shank.html
if ptd_tool == 45982:
if ptd_depth > 6.35:
return 15.875
else:
return ptd_tool
# Tapered Ball Nose
if ptd_tool == 204:
if ptd_depth > 6.35:
return ptd_tool
if ptd_tool == 304:
if ptd_depth > 6.35:
return ptd_tool
else:
return ptd_tool
def tool_radius(self, ptd_tool, ptd_depth):
tr = self.tool_diameter(ptd_tool, ptd_depth)/2
return tr
def rcs(self, ex, ey, ez, shape):
start = shape
end = shape
toolpath = hull(start.translate([self.xpos(), self.ypos(), self.zpos()]),
end.translate([ex, ey, ez]))
return toolpath
def rapid(self, ex, ey, ez):
cts = self.currenttoolshape
toolpath = self.rcs(ex, ey, ez, cts)
self.setxpos(ex)
self.setypos(ey)
self.setzpos(ez)
if self.generatepaths == True:
self.rapids = self.rapids.union(toolpath)
# return cylinder(0.01, 0, 0.01, center = False, fn = 3)
return cube([0.001, 0.001, 0.001])
else:
return toolpath
def cutshape(self, ex, ey, ez):
cts = self.currenttoolshape
toolpath = self.rcs(ex, ey, ez, cts)
if self.generatepaths == True:
self.toolpaths = self.toolpaths.union(toolpath)
return cube([0.001, 0.001, 0.001])
else:
return toolpath
def movetosafeZ(self):
rapid = self.rapid(self.xpos(), self.ypos(), self.retractheight)
# if self.generatepaths == True:
# rapid = self.rapid(self.xpos(), self.ypos(), self.retractheight)
# self.rapids = self.rapids.union(rapid)
# else:
# if (generategcode == true) {
# // writecomment("PREPOSITION FOR RAPID PLUNGE");Z25.650
# //G1Z24.663F381.0, "F", str(plunge)
if self.generatepaths == False:
return rapid
else:
return cube([0.001, 0.001, 0.001])
def rapidXYZ(self, ex, ey, ez):
rapid = self.rapid(ex, ey, ez)
if self.generatepaths == False:
return rapid
def rapidXY(self, ex, ey):
rapid = self.rapid(ex, ey, self.zpos())
# if self.generatepaths == True:
# self.rapids = self.rapids.union(rapid)
# else:
if self.generatepaths == False:
return rapid
def rapidXZ(self, ex, ez):
rapid = self.rapid(ex, self.ypos(), ez)
if self.generatepaths == False:
return rapid
def rapidYZ(self, ey, ez):
rapid = self.rapid(self.xpos(), ey, ez)
if self.generatepaths == False:
return rapid
def rapidX(self, ex):
rapid = self.rapid(ex, self.ypos(), self.zpos())
if self.generatepaths == False:
return rapid
def rapidY(self, ey):
rapid = self.rapid(self.xpos(), ey, self.zpos())
if self.generatepaths == False:
return rapid
def rapidZ(self, ez):
rapid = self.rapid(self.xpos(), self.ypos(), ez)
# if self.generatepaths == True:
# self.rapids = self.rapids.union(rapid)
# else:
if self.generatepaths == False:
return rapid
def cutline(self, ex, ey, ez):\
#below will need to be integrated into if/then structure not yet copied
# cts = self.currenttoolshape
if (self.currenttoolnumber() == 374):
# self.writegc("(TOOL/MILL, 9.53, 0.00, 3.17, 0.00)")
self.currenttoolshape = self.keyhole(9.53/2, 3.175)
toolpath = self.cutshape(ex, ey, ez)
self.currenttoolshape = self.keyhole_shaft(6.35/2, 12.7)
toolpath = toolpath.union(self.cutshape(ex, ey, ez))
# elif (self.currenttoolnumber() == 375):
# self.writegc("(TOOL/MILL, 9.53, 0.00, 3.17, 0.00)")
# elif (self.currenttoolnumber() == 376):
# self.writegc("(TOOL/MILL, 12.7, 0.00, 4.77, 0.00)")
# elif (self.currenttoolnumber() == 378):
# self.writegc("(TOOL/MILL, 12.7, 0.00, 4.77, 0.00)")
# elif (self.currenttoolnumber() == 56125):#0.508/2, 1.531
# self.writegc("(TOOL/CRMILL, 0.508, 6.35, 3.175, 7.9375, 3.175)")
elif (self.currenttoolnumber() == 56142):#0.508/2, 2.921
# self.writegc("(TOOL/CRMILL, 0.508, 3.571875, 1.5875, 5.55625, 1.5875)")
toolpath = self.cutroundovertool(self.xpos(), self.ypos(), self.zpos(), ex, ey, ez, 0.508/2, 1.531)
# elif (self.currenttoolnumber() == 1570):#0.507/2, 4.509
# self.writegc("(TOOL/CRMILL, 0.17018, 9.525, 4.7625, 12.7, 4.7625)")
else:
toolpath = self.cutshape(ex, ey, ez)
self.setxpos(ex)
self.setypos(ey)
self.setzpos(ez)
# if self.generatepaths == True:
# self.toolpaths = union([self.toolpaths, toolpath])
# else:
if self.generatepaths == False:
return toolpath
else:
return cube([0.001, 0.001, 0.001])
def cutlinedxfgc(self, ex, ey, ez):
self.dxfline(self.currenttoolnumber(), self.xpos(), self.ypos(), ex, ey)
self.writegc("G01 X", str(ex), " Y", str(ey), " Z", str(ez))
# if self.generatepaths == False:
return self.cutline(ex, ey, ez)
def cutroundovertool(self, bx, by, bz, ex, ey, ez, tool_radius_tip, tool_radius_width, stepsizeroundover = 1):
# n = 90 + fn*3
# print("Tool dimensions", tool_radius_tip, tool_radius_width, "begin ", bx, by, bz, "end ", ex, ey, ez)
step = 4 #360/n
shaft = cylinder(step, tool_radius_tip, tool_radius_tip)
toolpath = hull(shaft.translate([bx, by, bz]), shaft.translate([ex, ey, ez]))
shaft = cylinder(tool_radius_width*2, tool_radius_tip+tool_radius_width, tool_radius_tip+tool_radius_width)
toolpath = toolpath.union(hull(shaft.translate([bx, by, bz+tool_radius_width]), shaft.translate([ex, ey, ez+tool_radius_width])))
for i in range(1, 90, stepsizeroundover):
angle = i
dx = tool_radius_width*math.cos(math.radians(angle))
dxx = tool_radius_width*math.cos(math.radians(angle+1))
dzz = tool_radius_width*math.sin(math.radians(angle))
dz = tool_radius_width*math.sin(math.radians(angle+1))
dh = abs(dzz-dz)+0.0001
slice = cylinder(dh, tool_radius_tip+tool_radius_width-dx, tool_radius_tip+tool_radius_width-dxx)
toolpath = toolpath.union(hull(slice.translate([bx, by, bz+dz]), slice.translate([ex, ey, ez+dz])))
if self.generatepaths == True:
self.toolpaths = self.toolpaths.union(toolpath)
else:
return toolpath
def cutlineXYZwithfeed(self, ex, ey, ez, feed):
return self.cutline(ex, ey, ez)
def cutlineXYZ(self, ex, ey, ez):
return self.cutline(ex, ey, ez)
def cutlineXYwithfeed(self, ex, ey, feed):
return self.cutline(ex, ey, self.zpos())
def cutlineXY(self, ex, ey):
return self.cutline(ex, ey, self.zpos())
def cutlineXZwithfeed(self, ex, ez, feed):
return self.cutline(ex, self.ypos(), ez)
def cutlineXZ(self, ex, ez):
return self.cutline(ex, self.ypos(), ez)
def cutlineXwithfeed(self, ex, feed):
return self.cutline(ex, self.ypos(), self.zpos())
def cutlineX(self, ex):
return self.cutline(ex, self.ypos(), self.zpos())
def cutlineYZ(self, ey, ez):
return self.cutline(self.xpos(), ey, ez)
def cutlineYwithfeed(self, ey, feed):
return self.cutline(self.xpos(), ey, self.zpos())
def cutlineY(self, ey):
return self.cutline(self.xpos(), ey, self.zpos())
def cutlineZgcfeed(self, ez, feed):
self.writegc("G01 Z", str(ez), "F", str(feed))
# if self.generatepaths == False:
return self.cutline(self.xpos(), self.ypos(), ez)
def cutlineZwithfeed(self, ez, feed):
return self.cutline(self.xpos(), self.ypos(), ez)
def cutlineZ(self, ez):
return self.cutline(self.xpos(), self.ypos(), ez)
def cutarcCC(self, barc, earc, xcenter, ycenter, radius, tpzreldim, stepsizearc=1):
# tpzinc = ez - self.zpos() / (earc - barc)
tpzinc = tpzreldim / (earc - barc)
cts = self.currenttoolshape
toolpath = cts
toolpath = toolpath.translate([self.xpos(), self.ypos(), self.zpos()])
i = barc
while i < earc:
toolpath = toolpath.union(self.cutline(xcenter + radius * math.cos(math.radians(i)), ycenter + radius * math.sin(math.radians(i)), self.zpos()+tpzinc))
i += stepsizearc
self.setxpos(xcenter + radius * math.cos(math.radians(earc)))
self.setypos(ycenter + radius * math.sin(math.radians(earc)))
if self.generatepaths == False:
return toolpath
else:
return cube([0.01, 0.01, 0.01])
def cutarcCW(self, barc, earc, xcenter, ycenter, radius, tpzreldim, stepsizearc=1):
# print(str(self.zpos()))
# print(str(ez))
# print(str(barc - earc))
# tpzinc = ez - self.zpos() / (barc - earc)
# print(str(tzinc))
# global toolpath
# print("Entering n toolpath")
tpzinc = tpzreldim / (barc - earc)
cts = self.currenttoolshape
toolpath = cts
toolpath = toolpath.translate([self.xpos(), self.ypos(), self.zpos()])
i = barc
while i > earc:
toolpath = toolpath.union(self.cutline(xcenter + radius * math.cos(math.radians(i)), ycenter + radius * math.sin(math.radians(i)), self.zpos()+tpzinc))
# self.setxpos(xcenter + radius * math.cos(math.radians(i)))
# self.setypos(ycenter + radius * math.sin(math.radians(i)))
# print(str(self.xpos()), str(self.ypos(), str(self.zpos())))
# self.setzpos(self.zpos()+tpzinc)
i += abs(stepsizearc) * -1
# self.dxfarc(self.currenttoolnumber(), xcenter, ycenter, radius, barc, earc)
# if self.generatepaths == True:
# print("Unioning n toolpath")
# self.toolpaths = self.toolpaths.union(toolpath)
# else:
self.setxpos(xcenter + radius * math.cos(math.radians(earc)))
self.setypos(ycenter + radius * math.sin(math.radians(earc)))
if self.generatepaths == False:
return toolpath
else:
return cube([0.01, 0.01, 0.01])
def cutarcCWdxf(self, barc, earc, xcenter, ycenter, radius, tpzreldim, stepsizearc=1):
toolpath = self.cutarcCW(barc, earc, xcenter, ycenter, radius, tpzreldim, stepsizearc=1)
self.dxfarc(self.currenttoolnumber(), xcenter, ycenter, radius, earc, barc)
if self.generatepaths == False:
return toolpath
else:
return cube([0.01, 0.01, 0.01])
def dxfcircle(self, tool_num, xcenter, ycenter, radius):
self.dxfarc(tool_num, xcenter, ycenter, radius, 0, 90)
self.dxfarc(tool_num, xcenter, ycenter, radius, 90, 180)
self.dxfarc(tool_num, xcenter, ycenter, radius, 180, 270)
self.dxfarc(tool_num, xcenter, ycenter, radius, 270, 360)
def dxfrectangle(self, tool_num, xorigin, yorigin, xwidth, yheight, corners = "Square", radius = 6):
if corners == "Square":
self.dxfline(tool_num, xorigin, yorigin, xorigin + xwidth, yorigin)
self.dxfline(tool_num, xorigin + xwidth, yorigin, xorigin + xwidth, yorigin + yheight)
self.dxfline(tool_num, xorigin + xwidth, yorigin + yheight, xorigin, yorigin + yheight)
self.dxfline(tool_num, xorigin, yorigin + yheight, xorigin, yorigin)
elif corners == "Fillet":
self.dxfrectangleround(tool_num, xorigin, yorigin, xwidth, yheight, radius)
elif corners == "Chamfer":
self.dxfrectanglechamfer(tool_num, xorigin, yorigin, xwidth, yheight, radius)
elif corners == "Flipped Fillet":
self.dxfrectangleflippedfillet(tool_num, xorigin, yorigin, xwidth, yheight, radius)
def dxfrectangleround(self, tool_num, xorigin, yorigin, xwidth, yheight, radius):
self.dxfarc(tool_num, xorigin + xwidth - radius, yorigin + yheight - radius, radius, 0, 90)
self.dxfarc(tool_num, xorigin + radius, yorigin + yheight - radius, radius, 90, 180)
self.dxfarc(tool_num, xorigin + radius, yorigin + radius, radius, 180, 270)
self.dxfarc(tool_num, xorigin + xwidth - radius, yorigin + radius, radius, 270, 360)
self.dxfline(tool_num, xorigin + radius, yorigin, xorigin + xwidth - radius, yorigin)
self.dxfline(tool_num, xorigin + xwidth, yorigin + radius, xorigin + xwidth, yorigin + yheight - radius)
self.dxfline(tool_num, xorigin + xwidth - radius, yorigin + yheight, xorigin + radius, yorigin + yheight)
self.dxfline(tool_num, xorigin, yorigin + yheight - radius, xorigin, yorigin + radius)
def dxfrectanglechamfer(self, tool_num, xorigin, yorigin, xwidth, yheight, radius):
self.dxfline(tool_num, xorigin + radius, yorigin, xorigin, yorigin + radius)
self.dxfline(tool_num, xorigin, yorigin + yheight - radius, xorigin + radius, yorigin + yheight)
self.dxfline(tool_num, xorigin + xwidth - radius, yorigin + yheight, xorigin + xwidth, yorigin + yheight - radius)
self.dxfline(tool_num, xorigin + xwidth - radius, yorigin, xorigin + xwidth, yorigin + radius)
self.dxfline(tool_num, xorigin + radius, yorigin, xorigin + xwidth - radius, yorigin)
self.dxfline(tool_num, xorigin + xwidth, yorigin + radius, xorigin + xwidth, yorigin + yheight - radius)
self.dxfline(tool_num, xorigin + xwidth - radius, yorigin + yheight, xorigin + radius, yorigin + yheight)
self.dxfline(tool_num, xorigin, yorigin + yheight - radius, xorigin, yorigin + radius)
def dxfrectangleflippedfillet(self, tool_num, xorigin, yorigin, xwidth, yheight, radius):
self.dxfarc(tool_num, xorigin, yorigin, radius, 0, 90)
self.dxfarc(tool_num, xorigin + xwidth, yorigin, radius, 90, 180)
self.dxfarc(tool_num, xorigin + xwidth, yorigin + yheight, radius, 180, 270)
self.dxfarc(tool_num, xorigin, yorigin + yheight, radius, 270, 360)
self.dxfline(tool_num, xorigin + radius, yorigin, xorigin + xwidth - radius, yorigin)
self.dxfline(tool_num, xorigin + xwidth, yorigin + radius, xorigin + xwidth, yorigin + yheight - radius)
self.dxfline(tool_num, xorigin + xwidth - radius, yorigin + yheight, xorigin + radius, yorigin + yheight)
self.dxfline(tool_num, xorigin, yorigin + yheight - radius, xorigin, yorigin + radius)
def cutkeyholegcdxf(self, kh_tool_num, kh_start_depth, kh_max_depth, kht_direction, kh_distance):
if (kht_direction == "N"):
toolpath = self.cutKHgcdxf(kh_tool_num, kh_start_depth, kh_max_depth, 90, kh_distance)
elif (kht_direction == "S"):
toolpath = self.cutKHgcdxf(kh_tool_num, kh_start_depth, kh_max_depth, 270, kh_distance)
elif (kht_direction == "E"):
toolpath = self.cutKHgcdxf(kh_tool_num, kh_start_depth, kh_max_depth, 0, kh_distance)
elif (kht_direction == "W"):
toolpath = self.cutKHgcdxf(kh_tool_num, kh_start_depth, kh_max_depth, 180, kh_distance)
if self.generatepaths == True:
self.toolpaths = union([self.toolpaths, toolpath])
return toolpath
else:
return cube([0.01, 0.01, 0.01])
def cutKHgcdxf(self, kh_tool_num, kh_start_depth, kh_max_depth, kh_angle, kh_distance):
oXpos = self.xpos()
oYpos = self.ypos()
self.dxfKH(kh_tool_num, self.xpos(), self.ypos(), kh_start_depth, kh_max_depth, kh_angle, kh_distance)
toolpath = self.cutline(self.xpos(), self.ypos(), -kh_max_depth)
self.setxpos(oXpos)
self.setypos(oYpos)
if self.generatepaths == False:
return toolpath
else:
return cube([0.001, 0.001, 0.001])
def dxfKH(self, kh_tool_num, oXpos, oYpos, kh_start_depth, kh_max_depth, kh_angle, kh_distance):
# oXpos = self.xpos()
# oYpos = self.ypos()
#Circle at entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 7), 0, 90)
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 7), 90, 180)
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 7), 180, 270)
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 7), 270, 360)
#pre-calculate needed values
r = self.tool_radius(kh_tool_num, 7)
# print(r)
rt = self.tool_radius(kh_tool_num, 1)
# print(rt)
ro = math.sqrt((self.tool_radius(kh_tool_num, 1))**2-(self.tool_radius(kh_tool_num, 7))**2)
# print(ro)
angle = math.degrees(math.acos(ro/rt))
#Outlines of entry hole and slot
if (kh_angle == 0):
#Lower left of entry hole
self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), self.tool_radius(kh_tool_num, 1), 180, 270)
#Upper left of entry hole
self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), self.tool_radius(kh_tool_num, 1), 90, 180)
#Upper right of entry hole
# self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), rt, 41.810, 90)
self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), rt, angle, 90)
#Lower right of entry hole
self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), rt, 270, 360-angle)
# self.dxfarc(kh_tool_num, self.xpos(), self.ypos(), self.tool_radius(kh_tool_num, 1), 270, 270+math.acos(math.radians(self.tool_diameter(kh_tool_num, 5)/self.tool_diameter(kh_tool_num, 1))))
#Actual line of cut
# self.dxfline(kh_tool_num, self.xpos(), self.ypos(), self.xpos()+kh_distance, self.ypos())
#upper right of end of slot (kh_max_depth+4.36))/2
self.dxfarc(kh_tool_num, self.xpos()+kh_distance, self.ypos(), self.tool_diameter(kh_tool_num, (kh_max_depth+4.36))/2, 0, 90)
#lower right of end of slot
self.dxfarc(kh_tool_num, self.xpos()+kh_distance, self.ypos(), self.tool_diameter(kh_tool_num, (kh_max_depth+4.36))/2, 270, 360)
#upper right slot
self.dxfline(kh_tool_num, self.xpos()+ro, self.ypos()-(self.tool_diameter(kh_tool_num, 7)/2), self.xpos()+kh_distance, self.ypos()-(self.tool_diameter(kh_tool_num, 7)/2))
# self.dxfline(kh_tool_num, self.xpos()+(sqrt((self.tool_diameter(kh_tool_num, 1)^2)-(self.tool_diameter(kh_tool_num, 5)^2))/2), self.ypos()+self.tool_diameter(kh_tool_num, (kh_max_depth))/2, ( (kh_max_depth-6.34))/2)^2-(self.tool_diameter(kh_tool_num, (kh_max_depth-6.34))/2)^2, self.xpos()+kh_distance, self.ypos()+self.tool_diameter(kh_tool_num, (kh_max_depth))/2, kh_tool_num)
#end position at top of slot
#lower right slot
self.dxfline(kh_tool_num, self.xpos()+ro, self.ypos()+(self.tool_diameter(kh_tool_num, 7)/2), self.xpos()+kh_distance, self.ypos()+(self.tool_diameter(kh_tool_num, 7)/2))
# dxfline(kh_tool_num, self.xpos()+(sqrt((self.tool_diameter(kh_tool_num, 1)^2)-(self.tool_diameter(kh_tool_num, 5)^2))/2), self.ypos()-self.tool_diameter(kh_tool_num, (kh_max_depth))/2, ( (kh_max_depth-6.34))/2)^2-(self.tool_diameter(kh_tool_num, (kh_max_depth-6.34))/2)^2, self.xpos()+kh_distance, self.ypos()-self.tool_diameter(kh_tool_num, (kh_max_depth))/2, KH_tool_num)
#end position at top of slot
# hull(){
# translate([xpos(), ypos(), zpos()]){
# keyhole_shaft(6.35, 9.525);
# }
# translate([xpos(), ypos(), zpos()-kh_max_depth]){
# keyhole_shaft(6.35, 9.525);
# }
# }
# hull(){
# translate([xpos(), ypos(), zpos()-kh_max_depth]){
# keyhole_shaft(6.35, 9.525);
# }
# translate([xpos()+kh_distance, ypos(), zpos()-kh_max_depth]){
# keyhole_shaft(6.35, 9.525);
# }
# }
# cutwithfeed(getxpos(), getypos(), -kh_max_depth, feed);
# cutwithfeed(getxpos()+kh_distance, getypos(), -kh_max_depth, feed);
# setxpos(getxpos()-kh_distance);
# } else if (kh_angle > 0 && kh_angle < 90) {
#//echo(kh_angle);
# dxfarc(getxpos(), getypos(), tool_diameter(KH_tool_num, (kh_max_depth))/2, 90+kh_angle, 180+kh_angle, KH_tool_num);
# dxfarc(getxpos(), getypos(), tool_diameter(KH_tool_num, (kh_max_depth))/2, 180+kh_angle, 270+kh_angle, KH_tool_num);
#dxfarc(getxpos(), getypos(), tool_diameter(KH_tool_num, (kh_max_depth))/2, kh_angle+asin((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)/(tool_diameter(KH_tool_num, (kh_max_depth))/2)), 90+kh_angle, KH_tool_num);
#dxfarc(getxpos(), getypos(), tool_diameter(KH_tool_num, (kh_max_depth))/2, 270+kh_angle, 360+kh_angle-asin((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)/(tool_diameter(KH_tool_num, (kh_max_depth))/2)), KH_tool_num);
#dxfarc(getxpos()+(kh_distance*cos(kh_angle)),
# getypos()+(kh_distance*sin(kh_angle)), tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2, 0+kh_angle, 90+kh_angle, KH_tool_num);
#dxfarc(getxpos()+(kh_distance*cos(kh_angle)), getypos()+(kh_distance*sin(kh_angle)), tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2, 270+kh_angle, 360+kh_angle, KH_tool_num);
#dxfline( getxpos()+tool_diameter(KH_tool_num, (kh_max_depth))/2*cos(kh_angle+asin((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)/(tool_diameter(KH_tool_num, (kh_max_depth))/2))),
# getypos()+tool_diameter(KH_tool_num, (kh_max_depth))/2*sin(kh_angle+asin((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)/(tool_diameter(KH_tool_num, (kh_max_depth))/2))),
# getxpos()+(kh_distance*cos(kh_angle))-((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)*sin(kh_angle)),
# getypos()+(kh_distance*sin(kh_angle))+((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)*cos(kh_angle)), KH_tool_num);
#//echo("a", tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2);
#//echo("c", tool_diameter(KH_tool_num, (kh_max_depth))/2);
#echo("Aangle", asin((tool_diameter(KH_tool_num, (kh_max_depth+4.36))/2)/(tool_diameter(KH_tool_num, (kh_max_depth))/2)));
#//echo(kh_angle);
# cutwithfeed(getxpos()+(kh_distance*cos(kh_angle)), getypos()+(kh_distance*sin(kh_angle)), -kh_max_depth, feed);
# toolpath = toolpath.union(self.cutline(self.xpos()+kh_distance, self.ypos(), -kh_max_depth))
elif (kh_angle == 90):
#Lower left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 180, 270)
#Lower right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 270, 360)
#left slot
self.dxfline(kh_tool_num, oXpos-r, oYpos+ro, oXpos-r, oYpos+kh_distance)
#right slot
self.dxfline(kh_tool_num, oXpos+r, oYpos+ro, oXpos+r, oYpos+kh_distance)
#upper left of end of slot
self.dxfarc(kh_tool_num, oXpos, oYpos+kh_distance, r, 90, 180)
#upper right of end of slot
self.dxfarc(kh_tool_num, oXpos, oYpos+kh_distance, r, 0, 90)
#Upper right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 0, 90-angle)
#Upper left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 90+angle, 180)
# toolpath = toolpath.union(self.cutline(oXpos, oYpos+kh_distance, -kh_max_depth))
elif (kh_angle == 180):
#Lower right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 270, 360)
#Upper right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 0, 90)
#Upper left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 90, 180-angle)
#Lower left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 180+angle, 270)
#upper slot
self.dxfline(kh_tool_num, oXpos-ro, oYpos-r, oXpos-kh_distance, oYpos-r)
#lower slot
self.dxfline(kh_tool_num, oXpos-ro, oYpos+r, oXpos-kh_distance, oYpos+r)
#upper left of end of slot
self.dxfarc(kh_tool_num, oXpos-kh_distance, oYpos, r, 90, 180)
#lower left of end of slot
self.dxfarc(kh_tool_num, oXpos-kh_distance, oYpos, r, 180, 270)
# toolpath = toolpath.union(self.cutline(oXpos-kh_distance, oYpos, -kh_max_depth))
elif (kh_angle == 270):
#Upper left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 90, 180)
#Upper right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, self.tool_radius(kh_tool_num, 1), 0, 90)
#left slot
self.dxfline(kh_tool_num, oXpos-r, oYpos-ro, oXpos-r, oYpos-kh_distance)
#right slot
self.dxfline(kh_tool_num, oXpos+r, oYpos-ro, oXpos+r, oYpos-kh_distance)
#lower left of end of slot
self.dxfarc(kh_tool_num, oXpos, oYpos-kh_distance, r, 180, 270)
#lower right of end of slot
self.dxfarc(kh_tool_num, oXpos, oYpos-kh_distance, r, 270, 360)
#lower right of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 180, 270-angle)
#lower left of entry hole
self.dxfarc(kh_tool_num, oXpos, oYpos, rt, 270+angle, 360)
# toolpath = toolpath.union(self.cutline(oXpos, oYpos-kh_distance, -kh_max_depth))
# print(self.zpos())
# self.setxpos(oXpos)
# self.setypos(oYpos)
# if self.generatepaths == False:
# return toolpath
# } else if (kh_angle == 90) {