def oval(x_center, y_center, x_width, y_height, tool_diameter, feed_rate, z_feed_rate, from_z, to_z, step_z, safety_z,
angle=0.0):
r"""Generate Gcode to cut an oval
Parameters
----------
...
angle : float
clockwise rotation angle
...
"""
point_center = Point(x_center, y_center)
gcode = list()
gcode.append(gcodes.g0_gcode(x=x_center, y=y_center, z=safety_z))
for h in _generate_heights(from_z, to_z, step_z):
for d in _generate_excentric(0.00, y_height/2.0, tool_diameter):
point_n = (Point(0.0, d) + point_center).rotate(point_center, angle)
point_ne = (Point((x_width - y_height) / 2.0, d) + point_center).rotate(point_center, angle)
point_e_arc_center = (Point((x_width-y_height)/2.0, 0.0) + point_center).rotate(point_center, angle)
point_se = (Point((x_width - y_height) / 2.0, -d) + point_center).rotate(point_center, angle)
point_sw = (Point(-(x_width-y_height)/2.0, -d) + point_center).rotate(point_center, angle)
point_w_arc_center = (Point(-(x_width - y_height)/2.0, 0.0) + point_center).rotate(point_center, angle)
point_nw = (Point(-(x_width - y_height)/2.0, d) + point_center).rotate(point_center, angle)
gcode.append(gcodes.g1_gcode(z=h, feedrate=z_feed_rate))
gcode.append(gcodes.g1_gcode(x=point_n.x, y=point_n.y, feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(x=point_ne.x, y=point_ne.y, feedrate=feed_rate))
gcode.append(gcodes.g2_gcode(x_end_point=point_se.x, y_end_point=point_se.y, spiral_end_altitude=h,
x_center_offset=(point_e_arc_center - point_ne).x,
y_center_offset=(point_e_arc_center - point_ne).y, feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(x=point_sw.x, y=point_sw.y, feedrate=feed_rate))
gcode.append(gcodes.g2_gcode(x_end_point=point_nw.x, y_end_point=point_nw.y, spiral_end_altitude=h,
x_center_offset=(point_w_arc_center - point_sw).x,
y_center_offset=(point_w_arc_center - point_sw).y, feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(x=point_n.x, y=point_n.y, feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(z=safety_z, feedrate=feed_rate))
return ''.join(gcode)
def hole(x_center, y_center, hole_diameter, tool_diameter, feed_rate, from_z, to_z, step_z, safety_z):
r"""Generate Gcode to cut a hole
Note
----
If the hole diameter is bigger than 2 x tool_diameter the material in the center is not removed
"""
if hole_diameter < tool_diameter:
raise exceptions.WrongParameterError('Cannot make a hole smaller than the tool')
gcode = list()
gcode.append(gcodes.g0_gcode(z=safety_z))
gcode.append(gcodes.g0_gcode(x=x_center - hole_diameter / 2 + tool_diameter / 2, y=y_center))
for h in _generate_heights(from_z, to_z, step_z):
gcode.append(gcodes.g2_gcode(x_center_offset=hole_diameter / 2 - tool_diameter / 2, y_center_offset=0,
spiral_end_altitude=h, feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(z=safety_z, feedrate=feed_rate))
return ''.join(gcode)
def full_hole(x_center, y_center, hole_diameter, tool_diameter, feed_rate, z_feed_rate, from_z, to_z, step_z, safety_z,
center_diameter=0.0):
r"""Generate Gcode to cut a hole and remove the middle material
If the hole diameter is bigger than 2 x tool_diameter the material in the center is removed
"""
if hole_diameter < tool_diameter:
raise exceptions.WrongParameterError('Cannot make a hole smaller than the tool')
gcode = list()
gcode.append(gcodes.g0_gcode(z=safety_z))
# gcode.append(_g0_gcode(x=x_center-tool_diameter/2,y=y_center))
gcode.append(gcodes.g0_gcode(x=x_center - tool_diameter / 2, y=y_center))
for h in _generate_heights(from_z, to_z, step_z):
gcode.append(gcodes.g1_gcode(z=h, feedrate=z_feed_rate))
for e in _generate_excentric(start=center_diameter/2.0, end=hole_diameter / 2, tool_diameter=tool_diameter):
gcode.append(gcodes.g1_gcode(x=x_center-e, y=y_center, feedrate=feed_rate))
gcode.append(gcodes.g2_gcode(x_center_offset=e, y_center_offset=0, spiral_end_altitude=h,
feedrate=feed_rate))
gcode.append(gcodes.g1_gcode(z=safety_z, feedrate=feed_rate))
return ''.join(gcode)