/
rocket_drone.py
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/
rocket_drone.py
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" A plank for mounting stuff on "
import cadquery as cq
import cqparts
from cqparts.params import *
from cqparts.constraint import Fixed, Coincident, Mate
from cqparts.display import render_props
from cqparts.search import register
from cqparts.utils.geometry import CoordSystem
from .dc import Cylindrical
@register(export="rocket")
class AeroMotor(Cylindrical):
diam = PositiveFloat(15)
length = PositiveFloat(40)
pass
@register(export="rocket")
class MotorMount(cqparts.Part):
length = PositiveFloat(20)
diameter = PositiveFloat(15)
thickness = PositiveFloat(0.5)
def make(self):
mm = (
cq.Workplane("XY")
.circle(self.diameter / 2 + self.thickness)
.circle(self.diameter / 2)
.extrude(self.length)
)
top = (
cq.Workplane("XY")
.circle(self.thickness + self.diameter / 2)
.extrude(self.thickness)
)
top = top.translate((0, 0, self.length))
mm = mm.union(top)
return mm
@register(export="rocket")
class Spinner(cqparts.Part):
length = PositiveFloat(20)
diameter = PositiveFloat(15)
def make(self):
sp = (
cq.Workplane("XZ")
.lineTo(self.diameter / 2, 0)
.lineTo(0, self.length)
.close()
)
sp = sp.revolve(axisStart=(0, 0, 0), axisEnd=(0, 1, 0))
return sp
@register(export="rocket")
class Blade(cqparts.Part):
length = PositiveFloat(15)
extra = PositiveFloat(10)
height = PositiveFloat(20)
thickness = PositiveFloat(0.3)
def make(self):
bl = (
cq.Workplane("XY")
.rect(self.length + self.extra, self.thickness)
.extrude(self.height)
)
bl = bl.translate((self.length / 2, 0, -self.height / 2))
return bl
@register(export="rocket")
class Turbine(cqparts.Part):
length = PositiveFloat(20)
diameter = PositiveFloat(15)
outer = PositiveFloat(20)
blades = Int(6)
pitch = PositiveFloat(45)
lift = PositiveFloat(10)
def make(self):
tb = cq.Workplane("XY").circle(self.diameter / 2).extrude(self.length)
bla = cq.Workplane("XY")
for i in range(self.blades):
bl = Blade(length=self.outer)
bl = bl.local_obj.rotate((0, 0, 0), (1, 0, 0), self.pitch)
bl = bl.translate((self.diameter / 2, 0, self.lift))
bl = bl.rotate((0, 0, 0), (0, 0, 1), i * (360.0 / self.blades))
bla = bla.union(bl)
mm = (
cq.Workplane("XY")
.circle(self.outer * 2)
.circle(self.outer)
.extrude(self.length)
)
bla = bla.cut(mm)
tb = tb.union(bla)
return tb
def mate_top(self):
return Mate(self, CoordSystem(origin=(0, 0, self.length)))
@register(export="rocket")
class Cowl(cqparts.Part):
length = PositiveFloat(60)
diameter = PositiveFloat(50)
thickness = PositiveFloat(0.5)
vanes = Int(7)
motor_diameter = PositiveFloat(20)
vane_height = PositiveFloat(20)
def make(self):
rad = self.diameter / 2 - self.motor_diameter / 2
pl = (
cq.Workplane("XY")
.circle(self.diameter / 2)
.circle(self.diameter / 2 - self.thickness)
.extrude(self.length)
)
for i in range(self.vanes):
v = cq.Workplane("XY").rect(rad, self.thickness).extrude(self.vane_height)
v = v.translate((rad / 2 + self.motor_diameter / 2, 0, 0))
v = v.rotate((0, 0, 0), (0, 0, 1), i * (360.0 / self.vanes))
pl = pl.union(v)
mm = MotorMount(
diameter=self.motor_diameter,
length=self.vane_height,
thickness=self.thickness,
)
mm = mm.local_obj.translate((0, 0, 0))
pl = pl.union(mm)
return pl
def mate_mount(self):
return Mate(self, CoordSystem(origin=(0, 0, self.vane_height)))
@register(export="rocket")
@register(export="showcase")
class TurbineAssembly(cqparts.Assembly):
motor_diameter = PositiveFloat()
motor_clearance = PositiveFloat(1)
blade_clearance = PositiveFloat(1)
diameter = PositiveFloat(50)
def initialize_parameters(self):
m = AeroMotor()
self.motor_diameter = m.diam + self.motor_clearance
pass
def make_components(self):
comps = {
"cowl": Cowl(motor_diameter=self.motor_diameter, diameter=self.diameter),
"motor": AeroMotor(),
"turbine": Turbine(outer=self.diameter / 2 - self.blade_clearance),
"spinner": Spinner(),
}
return comps
def make_constraints(self):
return [
Fixed(self.components["cowl"].mate_origin),
Coincident(
self.components["motor"].mate_origin,
self.components["cowl"].mate_mount(),
),
Coincident(
self.components["turbine"].mate_origin,
self.components["cowl"].mate_mount(),
),
Coincident(
self.components["spinner"].mate_origin,
self.components["turbine"].mate_top(),
),
]
if __name__ == "__main__":
from cqparts.display import display
# display(Spinner())
# display(Cowl())
# display(Turbine())
# display(Blade())
# display(AeroMotor())
display(TurbineAssembly())