File size: 2,238 Bytes
6de1b61 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | import cadquery as cq
base_width = 50
base_height = 80
base_thickness = 6
corner_radius = 4
hole_dia = 5.2
csk_dia = 10
csk_angle = 82
hole_inset_x = 10
hole_inset_y = 12
shaft_width = 14
shaft_depth = 12
shaft_length = 35
hook_inner_radius = 16
hook_outer_radius = hook_inner_radius + shaft_depth
gusset_thickness = 6
bottom_gusset_length = 25
bottom_gusset_height = 18
top_gusset_length = 15
top_gusset_height = 12
base = (
cq.Workplane("XY")
.box(base_width, base_height, base_thickness)
.edges("|Z")
.fillet(corner_radius)
)
hx = base_width / 2 - hole_inset_x
hy = base_height / 2 - hole_inset_y
pts = [(hx, hy), (-hx, hy), (hx, -hy), (-hx, -hy)]
base = (
base.faces(">Z")
.workplane()
.pushPoints(pts)
.cskHole(diameter=hole_dia, cskDiameter=csk_dia, cskAngle=csk_angle)
)
z_start = base_thickness / 2
z_arc_center = z_start + shaft_length
y_inner_start = shaft_depth / 2
y_outer_start = -shaft_depth / 2
hook = (
cq.Workplane("YZ")
.moveTo(y_outer_start, z_start)
.lineTo(y_outer_start, z_arc_center)
.threePointArc(
(y_outer_start + hook_outer_radius, z_arc_center + hook_outer_radius),
(y_outer_start + 2 * hook_outer_radius, z_arc_center),
)
.threePointArc(
(y_outer_start + 2 * hook_outer_radius - shaft_depth / 2, z_arc_center - shaft_depth / 2),
(y_outer_start + 2 * hook_outer_radius - shaft_depth, z_arc_center),
)
.threePointArc(
(y_inner_start + hook_inner_radius, z_arc_center + hook_inner_radius),
(y_inner_start, z_arc_center),
)
.lineTo(y_inner_start, z_start)
.close()
.extrude(shaft_width / 2, both=True)
)
bottom_gusset = (
cq.Workplane("YZ")
.moveTo(y_outer_start, z_start)
.lineTo(y_outer_start - bottom_gusset_length, z_start)
.lineTo(y_outer_start, z_start + bottom_gusset_height)
.close()
.extrude(gusset_thickness / 2, both=True)
)
top_gusset = (
cq.Workplane("YZ")
.moveTo(y_inner_start, z_start)
.lineTo(y_inner_start + top_gusset_length, z_start)
.lineTo(y_inner_start, z_start + top_gusset_height)
.close()
.extrude(gusset_thickness / 2, both=True)
)
fixture = base.union(hook).union(bottom_gusset).union(top_gusset)
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