cadquery_files/pi_housing/pi_cam_housing.py

import cadquery as cq
from cadquery.occ_impl.exporters import *
from ocp_vscode import show, show_object


###### Angle param #####
hole_diam = 5.1
hole_dist = 50
bar_width = 20
two_bar_width = hole_dist + bar_width

board_length = 64.5
board_width = 28.7
board_thick = 0.7

lid = cq.importers.importStep(r"mill/Pi_housing/lid_smaller_holes.step")
base = cq.importers.importStep(r"mill/Pi_housing/base_smaller_holes.step")

slit_width = 3
slit_offset = 1

angle_thick = 3
angle_width = 10
angle_length = 30
flap_length = 15
shift = 5

###### BL Touch Holder param #####
extension_len = 25
bl_holder_width = 26.2
bl_holder_depth = 10.5 + angle_thick

bl_hole_diam = 3.85
bl_hole_dist = 21.4 - bl_hole_diam

###### Cam Holder param #####
lens_diam = 7.5
lens_holder_width = 8.5
lens_holder_thick = 2.9

cam_dist = 30
cam_angle = 45

holder_length = 60
holder_length_offset = 20
holder_width = 12
holder_thick = angle_thick

edge_length = 10

case_thick = 2
case_air = 0.2
cable_thick = 1
case_fillet = 8

holder_x = hole_dist/2-holder_length_offset
holder_y = -10



###### Angle #####
connector = (
    base.faces(">Z").workplane(origin=(-hole_dist/2,0,shift))
    .box(angle_width, angle_length, angle_thick, (True, False, False), combine=False)
)
connector = connector.faces(">Z").workplane().center(0, angle_width/2).circle(slit_width/2).cutThruAll()
connector_shift = connector.translate((hole_dist+slit_offset,0,0))
connector_bar = (
    connector.faces(">X")
    .workplane(centerOption="CenterOfBoundBox")
    .center((angle_length-angle_width)/2,0)
    .rect(angle_width, angle_thick, centered=(True, True))
    .extrude(hole_dist)
)
connector_wide = (
    connector.union(connector_bar).union(connector_shift)
    .edges("<Y and |Z")
    .fillet(4)
)
connector_wide = connector_wide.faces("|Y")[3].edges("|Z").fillet(5)

actual_flap_length = flap_length + angle_thick
flap = (
    connector_wide.faces(">Y")
    .workplane(centerOption="CenterOfBoundBox")
    .center(0,-angle_thick/2)
    .rect(hole_dist+angle_width+slit_offset,actual_flap_length, centered=(True,False))
    .extrude(angle_thick, combine=False)
)

flap = (
    flap.faces("<Y")
    .workplane()
    .center(hole_dist/2, actual_flap_length - hole_diam)
    .circle(hole_diam/2)
    .center(-hole_dist, 0)
    .circle(hole_diam/2)
    .cutThruAll()
)


flap = (
   flap.faces(">X")
   .workplane(centerOption="CenterOfBoundBox")
   .rect(angle_thick, flap_length+angle_thick)
   .extrude(extension_len)
)

holder_shift = bl_holder_width - flap_length - angle_thick
bl_holder = (
    flap.faces(">X")
    .workplane(centerOption="CenterOfBoundBox")
    .center(-angle_thick/2, holder_shift/2)
    .rect(bl_holder_depth, bl_holder_width, centered=(False,True))
    .extrude(angle_thick)
    .faces(">X")
    .workplane(centerOption="CenterOfBoundBox")
    .center(0, -bl_hole_dist/2)
    .circle(bl_hole_diam/2)
    .center(0, bl_hole_dist)
    .circle(bl_hole_diam/2)
    .cutThruAll()
    .faces("+Z")[0]
    .edges(">X")
    .chamfer(holder_shift-0.1, holder_shift*2)
    .faces("<X")
    .edges(">Z")
    .fillet(3)
    .faces(">Y")
    .edges("|X")
    .fillet(5)
)

angle = connector_wide.union(bl_holder)

############


###### CamHolder #####

holder = (
    base.faces(">Z").workplane()
    .center(holder_x, holder_y)
    .box(holder_length, holder_width, holder_thick, (False, True, False), combine=False)
    .edges("|Z and <X and <Y ")
    .fillet(4)
)
case_dim_x = lens_holder_width + case_thick + case_air
case_dim_z = lens_holder_thick+case_air+case_thick
case_dim_y = case_dim_x + holder_width/2 - holder_y
cam_case = (
    holder.faces(">Z").workplane()
    .center(holder_length, -holder_width/2)
    .box(case_dim_x*2, case_dim_y, case_dim_z, combine=False, centered=(True,False,False))
)
indside_width = lens_holder_width+case_air
cam_case_inside = (
    cam_case.faces(">Z").workplane(invert=True)
    .center(-case_dim_x/2, -case_dim_y + case_dim_x/2)
    .box(indside_width, indside_width, lens_holder_thick+case_air, combine=False, centered=(True,True,False))
    .center(-1,0)
    .box(indside_width, indside_width, cable_thick+case_air, centered=(True,True,False))
) # Lens holder hole
cam_case = (
    cam_case.faces("<Z").workplane()
    .center(-case_dim_x/2, -(case_dim_y - case_dim_x/2))
    .cskHole(lens_diam, lens_diam*1.8, 120)
) # Lens hole
cam_case = cam_case.cut(cam_case_inside).edges("|Z and <X and <Y").fillet(case_fillet)
cam_case = (
    cam_case
    .rotateAboutCenter((0,1,0), 270-cam_angle)
    .translate((2,0,-6.5))
)

holder = (
    holder.faces(">Y").workplane()
    .rect(-holder_width,holder_thick, centered=(False,False))
    .extrude(edge_length)
    .faces(">Y")
    .edges("|Z")
    .fillet(5)
)

holder = (
    holder.faces(">Z")
    .workplane()
    .center(holder_width/2, edge_length/2)
    .circle(slit_width/2)
    .cutThruAll()
    .center(angle_length/2-slit_width/2, -edge_length)
    .circle(slit_width/2)
    .cutThruAll()
)

cam_case_lid = (
    cam_case.faces(">(-1, 0, -1)").workplane(centerOption="CenterOfBoundBox")
    .box(case_dim_y, case_dim_x*2, case_thick, combine=False, centered=(True, True, False))
    .edges(">(1, -1, -1)").fillet(case_fillet)
)
cam_case_lid = cam_case_lid.cut(holder)

holder = holder.union(cam_case)


############

show_object(lid)
show_object(base)
show_object(angle)
show_object(holder)
show_object(cam_case_lid)

# export the box as a STEP file
with open(r"mill/Pi_housing/pi_angle.step", "w") as fp:
   cq.exporters.exportShape(angle, ExportTypes.STEP, fp)

with open(r"mill/Pi_housing/cam_holder.step", "w") as fp:
   cq.exporters.exportShape(holder, ExportTypes.STEP, fp)

with open(r"mill/Pi_housing/cam_case_lid.step", "w") as fp:
   cq.exporters.exportShape(cam_case_lid, ExportTypes.STEP, fp)