def build(self, print3d=True):
s = self
asy = cadquery.Assembly()
# global calcs
x = s.glass_dim + s.extra_xy
y = s.glass_dim + s.extra_xy
# make the bottom piece
bottom = self.make_bottom(x, y, print3d=print3d)
asy.add(bottom, name="bottom", color=cadquery.Color("red"))
# make the top piece
top = self.make_top(x, y, print3d=print3d)
asy.add(top.translate((0, 0, s.pedestal_z)),
name="top",
color=cadquery.Color("gray"))
# constrain assembly
#asy.constrain("bottom?bottom_mate", "top?top_mate", "Point")
# solve constraints
#asy.solve()
return asy
def create_hexapod():
# Some shortcuts
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
# Leg assembly
leg = MAssembly(upper_leg, name="upper",
color=C("orange")).add(lower_leg,
name="lower",
color=C("orange"),
loc=L(80, 0, 0))
# Hexapod assembly
hexapod = (MAssembly(
base, name="bottom", color=C("gray"),
loc=L(0, 1.1 * width,
0)).add(base,
name="top",
color=C(0.9, 0.9, 0.9),
loc=L(0, -2.2 * width,
0)).add(stand,
name="front_stand",
color=C(0.5, 0.8, 0.9),
loc=L(40, 100,
0)).add(stand,
name="back_stand",
color=C(0.5, 0.8, 0.9),
loc=L(-40, 100, 0)))
for i, name in enumerate(leg_names):
hexapod.add(leg, name=name, loc=L(100, -55 * (i - 1.7), 0))
return hexapod
def create_leg(x, y):
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
leg = MAssembly(cq.Workplane("YZ").polyline([(0, 0), (x, 0), (x, y)]), name="base", color=C("Gray"))
for i, name in enumerate(link_list):
leg.add(parts[name], name=name, color=C(links[name]["col"]), loc=L(0, 0, i * 10 - 50))
return leg
def __init__(self, *, vslot_dxf_profile_location: str):
self.dimensions: MappingProxyType = MappingProxyType({})
back = VSlot(
outer_x=80,
outer_y=40,
base_depth=20,
slot_length=250,
c_beam_dxf_profile_loc=vslot_dxf_profile_location,
)
clamp = Clamp()
bracket = Bracket(clamp=clamp)
spindle = Spindle()
bottom_of_vslot_to_bottom_of_bracket = (
-6 + spindle.dimensions["nut_length"] +
spindle.dimensions["shaft_length"] +
spindle.dimensions["bearing_cap_height"] +
spindle.dimensions["body_clamp_end_offset"] +
clamp.dimensions["z"] / 2 - bracket.dimensions["height"] / 2)
backpoint = (back.geometry.faces(
"<Z", tag="unslotted").edges("<Y").translate(
(0, 0, bottom_of_vslot_to_bottom_of_bracket)).val())
bracketpoint = bracket.geometry.faces("<Z").edges(">Y").val()
self.geometry = (cq.Assembly(name="SpindleAssembly").add(
back.geometry,
name="back",
color=cq.Color(0.8, 0.8, 0.8),
).add(bracket.geometry, name="bracket",
color=cq.Color(0.9, 0.9, 0.95)).constrain(
"back", backpoint, "bracket", bracketpoint,
"Point").constrain(
"back",
back.geometry.faces("<Y", tag="unslotted").val(),
"bracket",
bracket.geometry.faces(">Y").val(),
"Axis",
).constrain(
"back",
back.geometry.faces("<Z", tag="unslotted").val(),
"bracket",
bracket.geometry.faces(">Z").val(),
"Axis",
).solve())
def empty_top_assy():
b1 = cq.Workplane().box(1, 1, 1)
assy = cq.Assembly()
assy.add(b1, color=cq.Color("green"))
return assy
def button(position: cq.Vector, rotation: int):
switch = kailh_switch().rotate(cq.Vector(0, 0, 0), cq.Vector(0, 0, 1),
rotation)
switch = switch.translate(position)
socket = kailh_socket().rotate(cq.Vector(0, 0, 0), cq.Vector(0, 0, 1),
rotation)
socket = socket.translate(position)
keycap = kailh_keycap().rotate(cq.Vector(0, 0, 0), cq.Vector(0, 0, 1),
rotation)
keycap = keycap.translate(position)
a = cq.Assembly()
a.add(switch, color=cq.Color(1, 1, 1, 1))
a.add(keycap, color=cq.Color(.5, .5, .5, 1))
a.add(socket, color=cq.Color(0, 0, 0, 1))
return a
def build(self, do_ventscrews: bool = False):
s = self
asy = cadquery.Assembly()
# the spacer PCB
spacer = s.make_spacer_pcb()
asy.add(spacer, name="spacer", color=cadquery.Color("DARKGREEN"))
# the towerplate
tp = self.make_tower_plate()
asy.add(tp, name="towers", color=cadquery.Color("GOLDENROD"))
# dowels
dwl = self.make_dowels()
asy.add(dwl, name="dowels", color=cadquery.Color("BLACK"))
# silicone
sil = self.make_silicone()
asy.add(sil, name="silicone", color=cadquery.Color("WHITE"))
# glass
glass = self.make_glass()
asy.add(glass, name="glass", color=cadquery.Color("SKYBLUE"))
# the heater base plate
heater = s.make_heater_plate()
asy.add(heater, name="heater", color=cadquery.Color("MATRAGRAY"))
# the spring pin PCB
pcb = self.get_pcb()
asy.add(pcb, name="pcb", color=cadquery.Color("brown"))
if do_ventscrews:
# the vent screws
vss_a = self.get_ventscrews_a()
vss_b = self.get_ventscrews_b()
asy.add(vss_a.add(vss_b), name="ventscrew")
# the alignment slot plate
slots = self.make_slot_plate()
asy.add(slots, name="sample_slots", color=cadquery.Color("GRAY45"))
pusher = self.make_pusher_plate()
asy.add(pusher, name="pusher", color=cadquery.Color("GRAY28"))
reserve = self.make_reservation(do_ventscrews=do_ventscrews)
asy.add(reserve, name="space_reservation")
return asy
def get_colors() -> Dict[str, cq.Color]:
""" Scan OCP for colors and output to a dict.
"""
colors = {}
for name in dir(Quantity):
splitted = name.rsplit(SEP, 1)
if splitted[0] == OCP_COLOR_LEADER:
colors.update({splitted[1].lower(): cq.Color(splitted[1])})
return colors
def test_color():
c1 = cq.Color("red")
assert c1.wrapped.GetRGB().Red() == 1
assert c1.wrapped.Alpha() == 1
c2 = cq.Color(1, 0, 0)
assert c2.wrapped.GetRGB().Red() == 1
assert c2.wrapped.Alpha() == 1
c3 = cq.Color(1, 0, 0, 0.5)
assert c3.wrapped.GetRGB().Red() == 1
assert c3.wrapped.Alpha() == 0.5
with pytest.raises(ValueError):
cq.Color("?????")
with pytest.raises(ValueError):
cq.Color(1, 2, 3, 4, 5)
def build(self, nx=5, ny=5):
asy = cadquery.Assembly()
# make the bottom piece
thing = self.make_thing(nx=nx, ny=ny)
bb = thing.findSolid().BoundingBox()
self.lg.debug(f"extents = ({bb.xlen},{bb.ylen},{bb.zlen})")
asy.add(thing, name="tray", color=cadquery.Color("gray"))
return asy
def show_mates(assembly, show_object, length=10):
radius = length / 10
for name, mate in assembly.mates.items():
coord = cq.Assembly(name=name)
coord.add(cq.Workplane("YZ").circle(radius).extrude(length),
color=cq.Color(1, 0, 0))
coord.add(cq.Workplane("ZX").circle(radius).extrude(length),
color=cq.Color(0, 0.5, 0))
coord.add(cq.Workplane("XY").circle(radius).extrude(length),
color=cq.Color(0, 0, 1))
mloc = mate.mate.loc
a = mate.assembly
aloc = a.loc
while a.parent is not None:
aloc = a.parent.loc * aloc
a = a.parent
coord.loc = aloc * mloc
show_object(coord, name=f"mate:{name}")
def build(self, print3d=True):
s = self
asy = cadquery.Assembly()
# global calcs
x = s.glass_dim + s.extra_xy
y = s.glass_dim + s.extra_xy
# make the bottom piece
bottom = self.make_bottom(x, y, print3d=print3d)
asy.add(bottom, name="bottom", color=cadquery.Color("red"))
# make the top pieces
top1 = self.make_top(x,
y,
print3d=print3d,
center_slot_width=s.center_slot_width_3,
outer_slot_spacing=s.outer_slot_spacing_3,
outer_slot_widths=s.outer_slot_width_3,
slots_rotated=False)
top2 = self.make_top(x,
y,
print3d=print3d,
center_slot_width=s.center_slot_width_2,
outer_slot_spacing=s.outer_slot_spacing_2,
outer_slot_widths=s.outer_slot_width_2,
slots_rotated=True)
asy.add(top1.translate((0, 0, s.pedestal_z)),
name="top1",
color=cadquery.Color("gray"))
asy.add(top2.translate((0, 0, s.pedestal_z + 20)),
name="top2",
color=cadquery.Color("gray"))
# constrain assembly
# asy.constrain("bottom?bottom_mate", "top?top_mate", "Point")
# solve constraints
# asy.solve()
return asy
def make_door():
door = (
MAssembly(name="door") # add a name for hierarchical addressing
.add(w_slot, name="bottom")
.add(h_slot, name="left", loc=L(0, 40, 0))
.add(h_slot, name="right", loc=L(0, 80, 0))
.add(w_slot, name="top", loc=L(0, 120, 0))
.add(conn, name="con_tl", color=cq.Color("black"), loc=L(0, 0, -40))
.add(conn, name="con_tr", color=cq.Color("black"), loc=L(0, 40, -40))
.add(conn, name="con_bl", color=cq.Color("black"), loc=L(0, 80, -40))
.add(conn, name="con_br", color=cq.Color("black"), loc=L(0, 120, -40))
.add(
make_panel(W + 2 * SLOT_D, H + 2 * SLOT_D, PANEL_T, SLOT_D),
name="panel",
color=cq.Color(0, 0, 1, 0.2),
loc=L(0, -40, H / 2),
)
.add(
make_handle(HANDLE_D, HANDLE_L, HANDLE_W),
name="handle",
color=cq.Color("yellow"),
loc=L(0, -150, 0),
)
)
return door
def nested_assy_sphere():
b1 = cq.Workplane().box(1, 1, 1).faces("<Z").tag("top_face").end()
b2 = cq.Workplane().box(1, 1, 1).faces("<Z").tag("bottom_face").end()
b3 = cq.Workplane().pushPoints([(-2, 0), (2, 0)]).tag("pts").sphere(1).tag("boxes")
assy = cq.Assembly(b1, loc=cq.Location(cq.Vector(0, 0, 0)), name="TOP")
assy2 = cq.Assembly(b2, loc=cq.Location(cq.Vector(0, 4, 0)), name="SECOND")
assy2.add(b3, loc=cq.Location(cq.Vector(0, 4, 0)), name="BOTTOM")
assy.add(assy2, color=cq.Color("green"))
return assy
def create_bearing():
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
assy = MAssembly(outer,
loc=L(0, 0, ball_diam / 2),
name="outer",
color=C("orange"))
assy.add(inner, loc=L(20, 0, 0), name="inner", color=C("orange"))
for i in range(number_balls):
assy.add(ball, loc=L(6 * i, 20, 0), name=balls[i], color=C("black"))
return assy
def nested_assy():
b1 = cq.Workplane().box(1, 1, 1)
b2 = cq.Workplane().box(1, 1, 1)
b3 = cq.Workplane().pushPoints([(-2, 0), (2, 0)]).box(1, 1, 0.5)
assy = cq.Assembly(b1, loc=cq.Location(cq.Vector(0, 0, 0)), name="TOP")
assy2 = cq.Assembly(b2, loc=cq.Location(cq.Vector(0, 4, 0)), name="SECOND")
assy2.add(b3, loc=cq.Location(cq.Vector(0, 4, 0)), name="BOTTOM")
assy.add(assy2, color=cq.Color("green"))
return assy
def create_disk_arm():
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
return (MAssembly(base,
name="base",
color=C("gray"),
loc=L(-dist_pivot / 2, 0,
0)).add(disk,
name="disk",
color=C("MediumAquaMarine"),
loc=L(r_disk, -1.5 * r_disk,
0)).add(arm,
name="arm",
color=C("orange"),
loc=L(0, 10 * nr, 0)))
def add_component(mesher, shape, largest_dimension, color, loc):
"""
Adds a single component to the resultant JSON.
"""
# Protect against this being called with just a blank workplane object in the stack
if not hasattr(shape, "ShapeType"):
return
tess = shape.tessellate(0.001)
# Use the location, if there is one
if loc is not None:
loc_x = loc.X()
loc_y = loc.Y()
loc_z = loc.Z()
else:
loc_x = 0.0
loc_y = 0.0
loc_z = 0.0
# Add vertices
for v in tess[0]:
mesher.addVertex(v.x + loc_x, v.y + loc_y, v.z + loc_z)
# Add triangles
for ixs in tess[1]:
mesher.addTriangle(*ixs)
# Add CadQuery-reported vertices
for vert in shape.Vertices():
mesher.addCQVertex(vert.X, vert.Y, vert.Z)
# Make sure that the largest dimension is represented accurately for camera positioning
mesher.addLargestDim(largest_dimension)
# Make sure that the color is set correctly for the current component
if color is None: color = cq.Color(1.0, 0.36, 0.05, 1.0)
mesher.addColor(color.wrapped.GetRGB().Red(),
color.wrapped.GetRGB().Green(),
color.wrapped.GetRGB().Blue(), color.wrapped.Alpha())
# Snapshot the current vertices and triangles as a component
mesher.addComponent()
def create():
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
a = MAssembly(cyl3, name="cyl3", color=C(1, 0, 0), loc=L(-20, -10, 20)).add(
box3, name="box3", color=C(1, 0, 0), loc=L(20, 10, 0)
)
b = (
MAssembly(cyl2, name="cyl2", color=C(0, 0.5, 0.25), loc=L(0, -20, 20))
.add(box2, name="box2", color=C(0, 0.5, 0.25), loc=L(0, 20, 20))
.add(a, name="a")
)
c = (
MAssembly(cyl1, name="cyl1", color=C(0, 0, 1), loc=L(10, 0, -10))
.add(box1, name="box1", color=C(0, 0, 1), loc=L(10, 0, 10))
.add(b, name="b")
)
d = MAssembly(box0, name="box0", color=C(0.5, 0.5, 0.5), loc=L(30, 30, 30)).add(c, name="c")
return d
def build(self):
s = self
asy = cq.Assembly()
# global calcs
x = s.glass_dim + s.extra_xy
y = s.glass_dim + s.extra_xy
# make the bottom piece
bottom = self.make_bottom(x, y)
asy.add(bottom, name="bottom", color=cq.Color("red"))
# make the top piece
top = self.make_top(x, y)
asy.add(top, name="top")
# constrain assembly
asy.constrain("bottom?bottom_mate", "top?top_mate", "Point")
# solve constraints
asy.solve()
return asy
def build(self, stacks_to_build: List[str] = [""]):
if stacks_to_build == [""]: # build them all by default
stacks_to_build = [x["name"] for x in self.stacks]
drawing_layers_needed = []
for stack_instructions in self.stacks:
if stack_instructions["name"] in stacks_to_build:
for stack_layer in stack_instructions["layers"]:
drawing_layers_needed += stack_layer["drawing_layer_names"]
if "edge_case" in stack_layer:
drawing_layers_needed.append(stack_layer["edge_case"])
drawing_layers_needed_unique = list(set(drawing_layers_needed))
# all the wires we'll need here
wires = self.get_wires(self.sources, drawing_layers_needed_unique)
stacks = {}
for stack_instructions in self.stacks:
# asy = cadquery.Assembly()
asy = None
if stack_instructions["name"] in stacks_to_build:
# asy.name = stack_instructions["name"]
z_base = 0
for stack_layer in stack_instructions["layers"]:
t = stack_layer["thickness"]
boundary_layer_name = stack_layer["drawing_layer_names"][
0] # boundary layer must always be the first one listed
w0 = wires[boundary_layer_name][0]
wp = CQ().sketch().face(w0)
for w in wires[boundary_layer_name][1::]:
wp = wp.face(w, mode="s")
wp = wp.finalize().extrude(t) # the workpiece is now made
wp = wp.faces(">Z").sketch()
if "array" in stack_layer:
array_points = stack_layer["array"]
else:
array_points = [(0, 0, 0)]
for drawing_layer_name in stack_layer[
"drawing_layer_names"][1:]:
some_wires = wires[drawing_layer_name]
for awire in some_wires:
wp = wp.push(array_points).face(
awire, mode="a", ignore_selection=False)
wp = wp.faces()
if "edge_case" in stack_layer:
edge_wire = wires[stack_layer["edge_case"]][0]
wp = wp.face(edge_wire, mode="i")
wp = wp.clean()
# wp = wp.finalize().cutThruAll() # this is a fail, but should work
wp = wp.finalize().extrude(-t, combine="cut")
new = wp.translate([0, 0, z_base])
if asy is None: # some silly hack needed to work around https://github.com/CadQuery/cadquery/issues/993
asy = cadquery.Assembly(new,
name=stack_layer["name"],
color=cadquery.Color(
stack_layer["color"]))
# asy.name = stack_instructions["name"]
else:
asy.add(new,
name=stack_layer["name"],
color=cadquery.Color(stack_layer["color"]))
z_base = z_base + t
stacks[stack_instructions["name"]] = asy
return stacks
def build(self, stacks_to_build: List[str] = [""]):
if stacks_to_build == [""]: # build them all by default
stacks_to_build = [x["name"] for x in self.stacks]
drawing_layers_needed = []
for stack_instructions in self.stacks:
if stack_instructions["name"] in stacks_to_build:
for stack_layer in stack_instructions["layers"]:
drawing_layers_needed += stack_layer["drawing_layer_names"]
if "edge_case" in stack_layer:
drawing_layers_needed.append(stack_layer["edge_case"])
drawing_layers_needed_unique = list(set(drawing_layers_needed))
# all the faces we'll need here
layers = self.get_layers(self.sources, drawing_layers_needed_unique)
self._layers = layers
stacks = {}
for stack_instructions in self.stacks:
asy = cadquery.Assembly()
# asy = None
if stack_instructions["name"] in stacks_to_build:
asy.name = stack_instructions["name"]
z_base = 0
for stack_layer in stack_instructions["layers"]:
t = stack_layer["thickness"]
boundary_layer_name = stack_layer["drawing_layer_names"][
0] # boundary layer must always be the first one listed
layer_comp = cadquery.Compound.makeCompound(
layers[boundary_layer_name].faces().vals())
if "array" in stack_layer:
array_points = stack_layer["array"]
else:
array_points = [(0, 0, 0)]
if len(stack_layer["drawing_layer_names"]) == 1:
wp = CQ().sketch().push(array_points).face(
layer_comp, mode="a", ignore_selection=False)
else:
wp = CQ().sketch().face(layer_comp,
mode="a",
ignore_selection=False)
wp = wp.finalize().extrude(
t) # the workpiece base is now made
if len(stack_layer["drawing_layer_names"]) > 1:
wp = wp.faces(">Z").workplane(
centerOption="ProjectedOrigin").sketch()
for drawing_layer_name in stack_layer[
"drawing_layer_names"][1:]:
layer_comp = cadquery.Compound.makeCompound(
layers[drawing_layer_name].faces().vals())
wp = wp.push(array_points).face(
layer_comp, mode="a", ignore_selection=False)
wp = wp.faces()
if "edge_case" in stack_layer:
edge_layer_name = stack_layer["edge_case"]
layer_comp = cadquery.Compound.makeCompound(
layers[edge_layer_name].faces().vals())
es = CQ().sketch().face(layer_comp)
wp = wp.face(es.faces(), mode="i")
wp = wp.clean()
# wp = wp.finalize().cutThruAll() # this is a fail, but should work. if it's not a fail is slower than the below line
wp = wp.finalize().extrude(-t, combine="cut")
# give option to override calculated z_base
if "z_base" in stack_layer:
z_base = stack_layer["z_base"]
new = wp.translate([0, 0, z_base])
asy.add(new,
name=stack_layer["name"],
color=cadquery.Color(stack_layer["color"]))
z_base = z_base + t
stacks[stack_instructions["name"]] = asy
return stacks
.faces("<X", tag="solid")
.hole(r / 1.5)
)
# tag mating faces
rv.faces("<X").faces(">Y").tag("mate1")
rv.faces("<X").faces("<Y").tag("mate2")
return rv
# Assembly
# Some shortcuts
L = lambda *args: cq.Location(cq.Vector(*args))
C = lambda *args: cq.Color(*args)
h_slot = make_vslot(H)
w_slot = make_vslot(W)
conn = make_connector()
# For visualisation of mate, spread elements by adding locs
def make_door():
door = (
MAssembly(name="door") # add a name for hierarchical addressing
.add(w_slot, name="bottom")
.add(h_slot, name="left", loc=L(0, 40, 0))
.add(h_slot, name="right", loc=L(0, 80, 0))
.add(w_slot, name="top", loc=L(0, 120, 0))
.add(conn, name="con_tl", color=cq.Color("black"), loc=L(0, 0, -40))
.add(conn, name="con_tr", color=cq.Color("black"), loc=L(0, 40, -40))
"<X", tag="solid").hole(r / 1.5))
# tag mating faces
rv.faces("<X").faces(">Y").tag("mate1")
rv.faces("<X").faces("<Y").tag("mate2")
return rv
# define the elements
door = (cq.Assembly().add(make_vslot(H), name="left").add(
make_vslot(H), name="right").add(make_vslot(W), name="top").add(
make_vslot(W),
name="bottom").add(make_connector(),
name="con_tl",
color=cq.Color("black")).add(
make_connector(),
name="con_tr",
color=cq.Color("black")).add(
make_connector(),
name="con_bl",
color=cq.Color("black")).add(
make_connector(),
name="con_br",
color=cq.Color("black")).add(
make_panel(W + 2 * SLOT_D,
H + 2 * SLOT_D, PANEL_T,
SLOT_D),
name="panel",
color=cq.Color(0, 0, 1, 0.2),
).add(
# show_object(collar)
# show_object(p40K)
# show_object(t40K, options={'color':0x008000, 'alpha':0.8})
# show_object(p4K)
# show_object(t4K, options={'color':0x000080, 'alpha':0.8})
def exportStep(object_list, filename):
vals = list(
itertools.chain(*[o.vals() for obj in object_list for o in obj.all()]))
compound = cq.Compound.makeCompound(vals)
compound.exportStep(filename)
return compound
a = (cq.Assembly().add(dr, name='dr', color=cq.Color('green')).add(
pt405, name='pt405').add(ovc, name='ovc', color=cq.Color(
1, 1, 1, 0.5)).add(collar, name='collar', color=cq.Color('red')).add(
p40K, name='40K plate',
color=cq.Color('gold')).add(t40K,
name='40K tube',
color=cq.Color(0, 0, 1, 0.5)).add(
p4K,
name='4K plate',
color=cq.Color('gold')).add(
t4K,
name='4K tube',
color=cq.Color(0, 1, 1, 0.5)))
# a.solve()
show_object(a, name='a')
for name, location in buttons.items():
x = button_bottom_cutout(x, location)
x = ic_cutouts(x)
x = screen_cutout(x)
usb = usb_cutout(cq.Workplane("XY")).extrude(3.0)
return mounting_holes(x).extrude(3.0).cut(usb)
for name, location in buttons.items():
if show_object:
b = button(location.position, location.rotation)
show_object(b)
if show_object:
show_object(cq.Assembly(board(), color=cq.Color(1, 1, 1, 1)))
show_object(cq.Assembly(bottom_plate(), color=cq.Color(0, 1, 0, 0.25)))
show_object(
cq.Assembly(top_plate().translate(cq.Vector(0, 0, 3)),
color=cq.Color(1, 0, 0, 0.25)))
parser = argparse.ArgumentParser()
parser.add_argument("--export", help="export dxf files", action="store_true")
parser.add_argument("--pcb-place",
help="place PCB footprints",
action="store_true")
args = parser.parse_args()
if args.export:
os.makedirs("export", exist_ok=True)
test_button = Button(position=cq.Vector(0, 0, 0), rotation=0)
importlib.reload(dims)
importlib.reload(clamp_module)
importlib.reload(bracket_module)
importlib.reload(spindle_module)
importlib.reload(vac_brack_module)
importlib.reload(vac_module)
importlib.reload(chimney_module)
importlib.reload(brace_module)
# Looks like I'm asking too much from the solver to assemble all these
# components in a top level assembly. I should try breaking these parts into
# subassemblies to simplify the process.
assy = cq.Assembly()
back = vslot.cbeam_dxf(250)
assy.add(back, name="back", color=cq.Color(0.8, 0.8, 0.8))
assy.add(bracket_module.bracket,
name="bracket",
color=cq.Color(0.9, 0.9, 0.95))
# Make the constraint between the centre of the bottom back edge of the bracket
# and the centre of the bottom front edge of the back aluminium profile plus an
# offset
backpoint = (back.faces("<Z", tag="unslotted").edges("<Y").translate(
(0, 0, dims.bottom_of_vslot_to_bottom_of_bracket)).val())
bracketpoint = bracket_module.bracket.faces("<Z").edges(">Y").val()
assy.constrain("back", backpoint, "bracket", bracketpoint, "Point")
assy.constrain(
"back",
back.faces("<Y", tag="unslotted").val(),
"bracket",
bracket_module.bracket.faces(">Y").val(),
def mkbase(
aso: cadquery.Assembly,
thickness: float,
cshift,
extents,
hps,
screw: SocketHeadCapScrew,
pedistal_height: float,
zbase: float,
subs_boost: float,
):
"""the thermal base"""
plate_name = "thermal_plate"
vac_name = "vacuum_chuck"
color = cadquery.Color("GOLD")
fillet_outer = 2
fillet_inner = 10
chamfer = 1
corner_screw_depth = 4.5
pedistal_xy = (161, 152)
pedistal_fillet = 10
dowelpts = [(-73, -66), (73, 66)]
dowel_nominal_d = 3 # marked on drawing for pressfit with ⌀3K7
# vac chuck clamp screws
vacscrew_length = 20
vacscrew = CounterSunkScrew(size="M6-1",
fastener_type="iso14581",
length=vacscrew_length,
simple=no_threads) # SHK-M6-20-V2-A4
vacclamppts = [(-73, -54.75), (-73, 54.75), (73, -54.75), (73, 54.75)]
# slot plate clamp screws
spscrew_length = 8
spscrew = CounterSunkScrew(size="M3-0.5",
fastener_type="iso14581",
length=spscrew_length,
simple=no_threads) # SHK-M3-8-V2-A4
# setscrew clamping stuff
setscrew_len = 30
screw_well_depth = 3
setscrew_recess = pedistal_height + screw_well_depth
setscrew = SetScrew(size="M6-1",
fastener_type="iso4026",
length=setscrew_len,
simple=no_threads) # SSU-M6-30-A2
setscrewpts = [(-73, -43.5), (73, 43.5)]
# waterblock nuts and holes
wb_w = 177.8
wb_mount_offset_from_edge = 7.25
wb_mount_offset = wb_w / 2 - wb_mount_offset_from_edge
waterblock_mount_nut = HexNutWithFlange(
size="M6-1", fastener_type="din1665",
simple=no_threads) # HFFN-M6-A2
wb_mount_points = [
(120, wb_mount_offset),
(120, -wb_mount_offset),
(-129, wb_mount_offset),
(-129, -wb_mount_offset),
]
# make the base chunk
wp = CQ().workplane(**u.copo, offset=zbase).sketch()
wp = wp.push([cshift]).rect(extents[0], extents[1], mode="a")
wp = wp.finalize().extrude(thickness)
wp: cadquery.Workplane # shouldn't have to do this (needed for type hints)
# cut for waterblock mnt ears
ear_square = 2 * wb_mount_offset
wp = wp.faces("<X").workplane(**u.cobb).rect(
xLen=extents[1] - 2 * ear_square, yLen=thickness,
centered=True).cutBlind(-(extents[0] - wall_outer[0]) / 2)
wp = wp.faces(">X").workplane(**u.cobb).rect(
xLen=extents[1] - 2 * ear_square, yLen=thickness,
centered=True).cutBlind(-(extents[0] - wall_outer[0]) / 2)
wp = wp.edges("|Z exc (<<X or >>X)").fillet(fillet_inner)
wp = wp.edges("|Z and (<<X or >>X)").fillet(fillet_outer)
# pedistal
wp = wp.faces(">Z").workplane(**u.copo, origin=(
0, 0, 0)).sketch().rect(
*pedistal_xy).reset().vertices().fillet(pedistal_fillet)
wp = wp.finalize().extrude(pedistal_height)
hardware = cq.Assembly(None) # a place to keep the harware
# corner screws
wp = wp.faces("<Z").workplane(**u.copo,
offset=-corner_screw_depth).pushPoints(
hps).clearanceHole(
fastener=screw,
fit="Close",
baseAssembly=hardware)
wp = wp.faces("<Z[-2]").wires().toPending().extrude(
corner_screw_depth,
combine="cut") # make sure the recessed screw is not buried
# dowel holes
wp = wp.faces(">Z").workplane(**u.copo).pushPoints(dowelpts).hole(
dowel_nominal_d + dowel3_delta_press, depth=pedistal_height)
# waterblock mounting
wp = wp.faces(">Z[-2]").workplane(
**u.copo).pushPoints(wb_mount_points).clearanceHole(
fastener=waterblock_mount_nut,
counterSunk=False,
fit="Loose",
baseAssembly=hardware)
# vac chuck stuff
# split
wp = wp.faces(">Z[-2]").workplane(**u.copo).split(
keepTop=True, keepBottom=True).clean()
btm_piece = wp.solids("<Z").first().edges("not %CIRCLE").chamfer(
chamfer)
top_piece = wp.solids(">Z").first().edges("not %CIRCLE").chamfer(
chamfer)
# hole array
n_array_x = 4
n_array_y = 5
x_spacing = 35
y_spacing = 29
x_start = (n_array_x - 1) / 2
y_start = (n_array_y - 1) / 2
n_sub_array_x = 8
n_sub_array_y = 2
x_spacing_sub = 3
y_spacing_sub = 10
x_start_sub = (n_sub_array_x - 1) / 2
y_start_sub = (n_sub_array_y - 1) / 2
hole_d = 1
hole_cskd = 1.1
csk_ang = 45
# compute all the vac chuck vent hole points
vac_hole_pts = [] # where the vac holes are drilled
street_centers = [] # the distribution street y values
for i in range(n_array_x):
for j in range(n_array_y):
for k in range(n_sub_array_x):
for l in range(n_sub_array_y):
ctrx = (i - x_start) * x_spacing
ctry = (j - y_start) * y_spacing
offx = (k - x_start_sub) * x_spacing_sub
offy = (l - y_start_sub) * y_spacing_sub
vac_hole_pts.append((ctrx + offx, ctry + offy))
street_centers.append((0, ctry + offy))
street_centers = list(set(street_centers)) # prune duplicates
# boost substrates up so they can't slip under
raise_square = (25, 25)
raise_fillet = 1
top_piece = CQ(top_piece.findSolid()).faces(">Z").workplane(
**u.copo).sketch().rarray(
x_spacing, y_spacing, n_array_x,
n_array_y).rect(*raise_square).reset().vertices().fillet(
raise_fillet).finalize().extrude(subs_boost)
# drill all the vac holes
top_piece = top_piece.faces(">Z").workplane(
**u.copo).pushPoints(vac_hole_pts).cskHole(diameter=hole_d,
cskDiameter=hole_cskd,
cskAngle=csk_ang)
# clamping setscrew threaded holes
top_piece = top_piece.faces(">Z").workplane().pushPoints(
setscrewpts).tapHole(
setscrew, depth=setscrew_recess, baseAssembly=hardware
) # bug prevents this from working correctly, workaround below
# clamping setscrew downbumps in the thermal plate
btm_piece = CQ(btm_piece.findSolid()).faces(">Z").workplane(
**u.copo).pushPoints(setscrewpts).circle(
vacscrew.clearance_hole_diameters["Close"] /
2).cutBlind(-screw_well_depth)
# vac chuck clamping screws
top_piece = top_piece.faces(">Z[-2]").workplane(
**u.copo, origin=(0, 0, 0)).pushPoints(vacclamppts).clearanceHole(
vacscrew, fit="Close", baseAssembly=hardware)
# next line is a hack to make absolutely sure the screws are recessed
top_piece = top_piece.faces(">Z[-2]").workplane(
**u.copo, origin=(0, 0, 0)).pushPoints(vacclamppts).cskHole(
vacscrew.clearance_hole_diameters["Close"],
cskDiameter=vacscrew.head_diameter + 1,
cskAngle=vacscrew.screw_data["a"])
btm_piece = btm_piece.faces(">Z").workplane(**u.copo, origin=(
0, 0, 0)).pushPoints(vacclamppts).tapHole(
setscrew, depth=vacscrew_length - pedistal_height +
1) # threaded holes to attach to
# mod the slot plate to include csk screws for clamping
for name, part in asys["squirrel"].traverse():
if name == "slot_plate":
sp_clamp_pts = [(p[0], p[1] + 5) for p in vacclamppts]
sp = part.obj
vch_shift_y = -37
vch_shift_x = 3
sp = sp.faces(">Z").workplane(**u.copo, origin=(
0, 0, 0)).rarray(vacclamppts[3][0] * 2 + vch_shift_x,
vacclamppts[3][1] * 2 + vch_shift_y, 2,
2).clearanceHole(spscrew,
fit="Close",
baseAssembly=hardware)
# next line is a hack to make absolutely sure the screws are recessed
sp = sp.faces(">Z").workplane(**u.copo, origin=(
0, 0, 0)).rarray(
vacclamppts[3][0] * 2 + vch_shift_x,
vacclamppts[3][1] * 2 + vch_shift_y, 2,
2).cskHole(spscrew.clearance_hole_diameters["Close"],
cskDiameter=spscrew.head_diameter + 1,
cskAngle=spscrew.screw_data["a"])
part.obj = sp
# make threaded holes to attach to, TODO: mark these as M3x0.5 threaded holes in engineering drawing
top_piece = top_piece.faces(">Z[-2]").workplane(
**u.copo,
origin=(0, 0,
0)).rarray(vacclamppts[3][0] * 2 + vch_shift_x,
vacclamppts[3][1] * 2 + vch_shift_y, 2,
2).tapHole(spscrew,
depth=spscrew_length - 1,
counterSunk=False)
# compute the hole array extents for o-ring path finding
sub_x_length = (n_sub_array_x - 1) * x_spacing_sub + hole_d
array_x_length = (n_array_x - 1) * x_spacing + sub_x_length
sub_y_length = (n_sub_array_y - 1) * y_spacing_sub + hole_d
array_y_length = (n_array_y - 1) * y_spacing + sub_y_length
# for the vac chuck fitting
vac_fitting_chuck_offset = -0.5 * y_spacing
fitting_tap_depth = 20
top_piece = top_piece.faces(">X").workplane(**u.cobb).center(
vac_fitting_chuck_offset, 0).tapHole(vac_fitting_screw,
depth=fitting_tap_depth)
vac_chuck_fitting = cadquery.Assembly(a_vac_fitting.rotate(
axisStartPoint=(0, 0, 0), axisEndPoint=(0, 0, 1), angleDegrees=-5),
name="chuck_vac_fitting")
hardware.add(vac_chuck_fitting,
loc=top_piece.plane.location,
name="vac chuck fitting")
# handle the valve, part number 435-8101
a_valve = u.import_step(
wrk_dir.joinpath("components", "VHK2-04F-04F.step"))
# a_valve = a_valve.rotate(axisStartPoint=(0, 0, 0), axisEndPoint=(0, 1, 0), angleDegrees=90).translate((0, 7.5, 9))
a_valve = a_valve.translate((0, 7.5, 9))
valve_mnt_spacing = 16.5
valve_mnt_screw_length = 30
valve_body_width = 18
valve_mnt_hole_depth = 15
valve_mnt_screw = PanHeadScrew(
size="M4-0.7",
fastener_type="iso14583",
length=valve_mnt_screw_length) # SHP-M4-30-V2-A4
btm_piece = btm_piece.faces(">X[-2]").workplane(**u.cobb).rarray(
valve_mnt_spacing, 1, 2,
1).tapHole(valve_mnt_screw,
depth=valve_mnt_hole_depth,
counterSunk=False) # cut threaded holes
btm_piece = btm_piece.faces(">X[-2]").workplane(**u.cobb).rarray(
valve_mnt_spacing, 1, 2,
1).tapHole(valve_mnt_screw,
depth=valve_mnt_screw_length - valve_body_width,
counterSunk=False,
baseAssembly=aso) # add screws
aso.add(a_valve, loc=btm_piece.plane.location, name="valve")
# handle the elbow, part number 306-5993
an_elbow = u.import_step(
wrk_dir.joinpath("components", "3182_04_00.step"))
an_elbow = an_elbow.rotate(axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 1, 0),
angleDegrees=-90).rotate(
axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 0, 1),
angleDegrees=90) # rotate the elbow
btm_pln = btm_piece.faces(">X[-2]").workplane(
**u.cobb,
offset=valve_body_width / 2).center(-26.65,
7.5) # position the elbow
aso.add(an_elbow, loc=btm_pln.plane.location, name="elbow")
# vac distribution network
zdrill_loc = (pedistal_xy[0] / 2 - fitting_tap_depth, 0.5 * y_spacing)
zdrill_r = 3
zdrill_depth = -pedistal_height / 2 - 2.5
top_piece = top_piece.faces("<Z").workplane(**u.cobb).pushPoints(
[zdrill_loc]).circle(zdrill_r).cutBlind(zdrill_depth)
highway_depth = 3
highway_width = 6
street_depth = 2
street_width = 1
top_piece = top_piece.faces("<Z").workplane(**u.cobb).sketch().push([
(zdrill_loc[0] / 2, zdrill_loc[1])
]).slot(w=zdrill_loc[0],
h=highway_width).finalize().cutBlind(-highway_depth)
top_piece = top_piece.faces("<Z").workplane(**u.cobb).sketch().slot(
w=pedistal_xy[0] - 2 * fitting_tap_depth,
h=highway_width,
angle=90).finalize().cutBlind(-highway_depth) # cut center highway
top_piece = top_piece.faces("<Z").workplane(
**u.cobb).sketch().push(street_centers).slot(
w=array_x_length - hole_d, h=street_width).finalize().cutBlind(
-street_depth) # cut streets
# padding to keep the oring groove from bothering the vac holes
groove_x_pad = 8
groove_y_pad = 16
# that's part number 196-4941
o_ring_thickness = 2
o_ring_inner_diameter = 170
# cut the o-ring groove
top_piece = top_piece.faces("<Z").workplane(**u.cobb).mk_groove(
ring_cs=o_ring_thickness,
follow_pending_wires=False,
ring_id=o_ring_inner_diameter,
gland_x=array_x_length + groove_x_pad,
gland_y=array_y_length + groove_y_pad,
hardware=hardware)
# cut the electrical contact screw mount holes
vc_e_screw_spacing = 15
vc_e_screw_center_offset = 10
vc_e_screw_hole_depth = 12
vc_e_screw_screw_length = 8
vc_e_srew_type = "M3-0.5"
e_dummy = SetScrew(vc_e_srew_type,
fastener_type="iso4026",
length=vc_e_screw_screw_length,
simple=no_threads)
# mark these chuck electrical connection screw holes in engineering drawing as M3x0.5
top_piece = top_piece.faces("<X").workplane(**u.cobb).center(
vc_e_screw_center_offset,
0).rarray(vc_e_screw_spacing, 1, 2,
1).tapHole(e_dummy, depth=vc_e_screw_hole_depth)
aso.add(btm_piece, name=plate_name, color=color)
aso.add(top_piece, name=vac_name, color=color)
aso.add(hardware.toCompound(),
name="hardware",
color=cadquery.Color(hardware_color))
def mkwalls(
aso: cadquery.Assembly,
height: float,
cshift,
extents,
hps,
zbase: float,
):
"""the chamber walls"""
name = "walls"
color = cadquery.Color("GRAY55")
thickness = 12
inner = (extents[0] - 2 * thickness, extents[1] - 2 * thickness)
inner_shift = cshift
outer_fillet = 2
inner_fillet = 6
chamfer = 0.75
nut = HexNut(size="M5-0.8", fastener_type="iso4033") # HNN-M5-A2
flat_to_flat = math.sin(60 * math.pi / 180) * nut.nut_diameter + 0.25
gas_fitting_hole_diameter = 20.6375 # 13/16"
gas_fitting_recess = 6.35
gas_fitting_flat_to_flat = 22.22 + 0.28
gas_fitting_diameter = 25.66 + 0.34
back_holes_shift = 45
back_holes_spacing = 27
front_holes_spacing = 75
fitting_step_xy = (
3, 15) # dims of the little step for the vac fitting alignment
fitting_step_center = (-fitting_step_xy[0] / 2 + inner[0] / 2 +
cshift[0], extents[1] / 2 -
fitting_step_xy[1] / 2 - thickness)
wp = CQ().workplane(offset=zbase).sketch()
wp = wp.push([cshift
]).rect(extents[0], extents[1],
mode="a").reset().vertices().fillet(outer_fillet)
wp = wp.push([inner_shift]).rect(inner[0], inner[1], mode="s").reset()
dummy_xy = (fitting_step_xy[0], inner[1])
dummy_center = (fitting_step_center[0], 0)
wp = wp.push([dummy_center]).rect(
*dummy_xy,
mode="a") # add on a dummy bit that we'll mostly subtract away
wp = wp.finalize().extrude(height).edges("|Z").fillet(inner_fillet)
sub_xy = (40, inner[1] - fitting_step_xy[1])
sub_center = (-sub_xy[0] / 2 + inner[0] / 2 + cshift[0],
-fitting_step_xy[1] / 2)
wp2 = CQ().workplane(offset=zbase).sketch().push([sub_center
]).rect(*sub_xy,
mode="a")
wp2 = wp2.finalize().extrude(height).edges("|Z").fillet(inner_fillet)
wp = wp.cut(wp2)
# wp = CQ().workplane(offset=zbase).sketch()
# wp = wp.push([cshift]).rect(extents[0], extents[1], mode="a").reset().vertices().fillet(outer_fillet)
# wp = wp.push([inner_shift]).rect(inner[0], inner[1], mode="s") # .reset().vertices().fillet(inner_fillet)
# wp = wp.finalize().extrude(height)
wp: cadquery.Workplane # shouldn't have to do this (needed for type hints)
wall_hardware = cq.Assembly(None, name="wall_hardware")
# corner holes (with nuts and nut pockets)
wp = wp.faces(">Z").workplane(
**u.copo, offset=-nut.nut_thickness).pushPoints(hps).clearanceHole(
fastener=nut,
fit="Close",
counterSunk=False,
baseAssembly=wall_hardware)
wp = wp.faces(">Z").workplane(**u.copo).sketch().push(hps[0:4:3]).rect(
flat_to_flat, nut.nut_diameter, angle=45).reset().push(
hps[1:3]).rect(flat_to_flat, nut.nut_diameter,
angle=-45).reset().vertices().fillet(
nut.nut_diameter /
4).finalize().cutBlind(-nut.nut_thickness)
# chamfers
wp = wp.faces(">Z").edges(">>X").chamfer(chamfer)
# gas holes with recesses
wp = wp.faces("<X").workplane(**u.cobb).center(
back_holes_shift,
0).rarray(back_holes_spacing, 1, 2,
1).hole(diameter=gas_fitting_hole_diameter,
depth=thickness)
# wp = wp.faces("<X").workplane(**u.cobb).center(back_holes_shift, 0).sketch().rarray(back_holes_spacing, 1, 2, 1).rect(gas_fitting_diameter, gas_fitting_flat_to_flat).reset().vertices().fillet(gas_fitting_diameter / 4).finalize().cutBlind(-gas_fitting_recess)
wp = wp.faces("<X").workplane(**u.cobb).center(
back_holes_shift, 0).sketch().rect(
2 * gas_fitting_diameter / 2 + back_holes_spacing,
gas_fitting_flat_to_flat).reset().vertices().fillet(
gas_fitting_diameter / 4).finalize().cutBlind(
-gas_fitting_recess) # unify the back holes
wp = wp.faces(">X").workplane(**u.cobb).rarray(
front_holes_spacing, 1, 2,
1).hole(diameter=gas_fitting_hole_diameter, depth=thickness)
wp = wp.faces(">X").workplane(**u.cobb).sketch().rarray(
front_holes_spacing, 1, 2,
1).rect(gas_fitting_diameter,
gas_fitting_flat_to_flat).reset().vertices().fillet(
gas_fitting_diameter /
4).finalize().cutBlind(-gas_fitting_recess)
# that's part number polymax 230X2N70
o_ring_thickness = 2
o_ring_inner_diameter = 230
ooffset = 17 # two times the o-ring path's center offset from the outer edge of the walls
# cut the lid o-ring groove
wp = wp.faces(">Z").workplane(**u.cobb).mk_groove(
ring_cs=o_ring_thickness,
follow_pending_wires=False,
ring_id=o_ring_inner_diameter,
gland_x=extents[0] - ooffset,
gland_y=extents[1] - ooffset,
hardware=wall_hardware)
# cut the base o-ring groove
wp = wp.faces("<Z").workplane(**u.cobb).mk_groove(
ring_cs=o_ring_thickness,
follow_pending_wires=False,
ring_id=o_ring_inner_diameter,
gland_x=extents[0] - ooffset,
gland_y=extents[1] - ooffset,
hardware=wall_hardware)
# get pipe fitting geometry
a_pipe_fitting = u.import_step(
wrk_dir.joinpath(
"components",
"5483T93_Miniature Nickel-Plated Brass Pipe Fitting.step"))
a_pipe_fitting = a_pipe_fitting.translate(
(0, 0, -6.35 - gas_fitting_recess))
pipe_fitting_asy = cadquery.Assembly(a_pipe_fitting.rotate(
axisStartPoint=(0, 0, 0), axisEndPoint=(0, 0, 1), angleDegrees=30),
name="one_pipe_fitting")
# move the pipe fittings to their wall holes
wppf = wp.faces(">X").workplane(**u.cobb).center(
front_holes_spacing / 2, 0)
pipe_fitting_asy.loc = wppf.plane.location
wall_hardware.add(pipe_fitting_asy, name="front_right_gas_fitting")
wppf = wppf.center(-front_holes_spacing, 0)
pipe_fitting_asy.loc = wppf.plane.location
wall_hardware.add(pipe_fitting_asy, name="front_left_gas_fitting")
wppf = wp.faces("<X").workplane(**u.cobb).center(
back_holes_shift + back_holes_spacing / 2, 0)
pipe_fitting_asy.loc = wppf.plane.location
wall_hardware.add(pipe_fitting_asy, name="rear_left_gas_fitting")
wppf = wppf.center(-back_holes_spacing, 0)
pipe_fitting_asy.loc = wppf.plane.location
wall_hardware.add(pipe_fitting_asy, name="rear_right_gas_fitting")
# get bonded washer geometry, part 229-6277
bonded_washer = u.import_step(
wrk_dir.joinpath("components", "hutchinson_ljf_207242.stp"))
bonded_washer = bonded_washer.rotate(axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 1, 0),
angleDegrees=90).translate(
(0, 0, 1.25))
bonded_washer_asy = cadquery.Assembly(bonded_washer,
name="one_bonded_washer")
# move bonded washers to their wall holes
washer_thickness = 2.5
wpbw = wp.faces(">X").workplane(**u.cobb,
offset=-thickness -
washer_thickness).center(
-front_holes_spacing / 2, 0)
bonded_washer_asy.loc = wpbw.plane.location
wall_hardware.add(bonded_washer_asy, name="front_right_bonded_washer")
wpbw = wpbw.center(front_holes_spacing, 0)
bonded_washer_asy.loc = wpbw.plane.location
wall_hardware.add(bonded_washer_asy, name="front_left_bonded_washer")
wpbw = wp.faces("<X[-5]").workplane(**u.cobb).center(
-back_holes_shift - back_holes_spacing / 2, 0)
bonded_washer_asy.loc = wpbw.plane.location
wall_hardware.add(bonded_washer_asy, name="rear_right_bonded_washer")
wpbw = wpbw.center(back_holes_spacing, 0)
bonded_washer_asy.loc = wpbw.plane.location
wall_hardware.add(bonded_washer_asy, name="rear_left_bonded_washer")
aso.add(wall_hardware.toCompound(),
name="wall_hardware",
color=cadquery.Color(hardware_color))
# passthrough details
pcb_scr_head_d_safe = 6
n_header_pins = 50
header_length = n_header_pins / 2 * 2.54 + 7.62 # n*0.1 + 0.3 inches
support_block_width = 7
pt_pcb_width = 2 * (support_block_width / 2 +
pcb_scr_head_d_safe / 2) + header_length
pt_pcb_outer_depth = 8.89 + 0.381 # 0.35 + 0.15 inches
pt_pcb_inner_depth = 8.89 + 0.381 # 0.35 + 0.15 inches
pt_center_offset = 28.65 # so that the internal passthrough connector aligns with the one in the chamber
# make the electrical passthrough
pt_asy = cadquery.Assembly(
) # this will hold the passthrough part that gets created
# pcb_asy = cadquery.Assembly() # this will hold the pcb part that gets created
pcb_asy = None # dont generate the base PCB (will probably later import the detailed board model)
hw_asy = cadquery.Assembly(
) # this will hold the pcb part that gets created
ptt = 5.5 # passthrough thickness, reduce a bit from default (which was half wall thickness) to prevent some thin walls close to an o-ring gland
wp = wp.faces("<X").workplane(**u.cobb).center(
-pt_center_offset,
0).make_oringer(board_width=pt_pcb_width,
board_inner_depth=pt_pcb_inner_depth,
board_outer_depth=pt_pcb_outer_depth,
wall_depth=thickness,
part_thickness=ptt,
pt_asy=pt_asy,
pcb_asy=pcb_asy,
hw_asy=hw_asy)
# insert passthrough into assembly
for asyo in pt_asy.traverse():
part = asyo[1]
if isinstance(part.obj, cadquery.occ_impl.shapes.Solid):
aso.add(part.obj, name=asyo[0], color=color)
if pcb_asy is not None:
# insert pcb into assembly
for asyo in pcb_asy.traverse(): # insert only one solid object
part = asyo[1]
if isinstance(part.obj, cadquery.occ_impl.shapes.Solid):
aso.add(part.obj,
name=asyo[0],
color=cadquery.Color("DARKGREEN"))
# insert hardware into assembly
aso.add(hw_asy.toCompound(), name="passthrough hardware")
# add in little detailed PCB
a_little_pcb = u.import_step(
wrk_dir.joinpath("components", "pt_pcb.step")).translate(
(0, 0, -pcb_thickness / 2)) # shift pcb to be z-centered
little_pcb = cadquery.Assembly(a_little_pcb.rotate(
axisStartPoint=(0, 0, 0), axisEndPoint=(0, 1, 0),
angleDegrees=90).rotate(axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 0, 1),
angleDegrees=90),
name="small detailed pcb")
asys["squirrel"].add(little_pcb,
loc=wp.plane.location,
name="little pcb")
# for the vac chuck fittings
rotation_angle = -155 # degrees
vac_fitting_wall_offset = extents[
1] / 2 - thickness - inner_fillet - 4 # mounting location offset from center
wp = wp.faces(">X").workplane(**u.cobb).center(
vac_fitting_wall_offset,
0).tapHole(vac_fitting_screw, depth=thickness + fitting_step_xy[0])
vac_chuck_fitting = cadquery.Assembly(a_vac_fitting.rotate(
axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 0, 1),
angleDegrees=rotation_angle),
name="outer_wall_vac_fitting")
aso.add(vac_chuck_fitting,
loc=wp.plane.location,
name="vac chuck fitting (wall outer)")
nwp = wp.faces(">X").workplane(**u.cobb,
invert=True,
offset=thickness +
fitting_step_xy[0]).center(
vac_fitting_wall_offset, 0)
vac_chuck_fitting = cadquery.Assembly(a_vac_fitting.rotate(
axisStartPoint=(0, 0, 0),
axisEndPoint=(0, 0, 1),
angleDegrees=-rotation_angle),
name="inner_wall_vac_fitting")
aso.add(vac_chuck_fitting,
loc=nwp.plane.location,
name="vac chuck fitting (wall inner)")
aso.add(wp, name=name, color=color) # add the walls bulk
def to_color(rgba):
return cq.Color(*rgba)
