cq/belt_rivets.py

from cadquery import exporters
from cq_warehouse.extensions import Workplane
from cq_warehouse.fastener import *
from cq_warehouse.thread import *
from cqmore.curve import archimedeanSpiral, circle
from cqmore.polygon import regularPolygon, star
from cqmore.polyhedron import polarZonohedra, Polyhedron, superellipsoid
from svg_path import addSvgPath
from svgpathtools import svg2paths
import cadquery as cq
import cqmore

Workplane = cqmore.extend(Workplane)
Workplane.addSvgPath = addSvgPath

# wk_paths, wk_attributes = svg2paths(
# "/home/deck/cad_files/svgs/wk_edited.svg"
# )

inner_radius = 5
outer_radius = 7
thickness = 3.5

rivet_inner_radius = 2
rivet_outer_radius = 3.5
rivet_thickness = 3

belt_width = 39
loop_thickness = 1.83
loop_side_thickness = 5
loop_height = 11.5 + loop_thickness
loop_width = 25
loop_length = belt_width + loop_side_thickness

slide_width_bottom = loop_side_thickness - 3
slide_width_top = loop_side_thickness - 4

logo = Workplane().circle(outer_radius).extrude(thickness)
logo = logo.faces(">Z[0]").circle(inner_radius + 0.9).extrude(thickness, combine="cut")
logo = logo.faces(">Z[0]").circle(inner_radius).extrude(thickness)
logo = (
    logo.faces(">Z[1]")
    .center(0, 0)
    .cylinder(thickness + 2, inner_radius - 1, combine="cut")
)
logo = (
    logo.workplane(offset=1.0)
    .circle(outer_radius + 4)
    .extrude(1)
    .workplane(offset=0.5)
    .text("WK", 10, 0.8, combine="cut")
)

# wk = Workplane("XY").center(0, 0).addSvgPath(wk_paths[0]).extrude(-2.0)

# logo = logo.union(wk, clean=False)

logo_outer = Workplane().circle(inner_radius + 1).extrude(thickness)
logo_outer = (
    logo_outer.faces(">Z[0]").circle(inner_radius).extrude(thickness, combine="cut")
)
logo_outer = logo_outer.workplane(offset=1.0).circle(outer_radius + 4).extrude(1)
cq.exporters.export(logo, "/home/deck/model_files/belt_hole_inner.step")
cq.exporters.export(logo_outer, "/home/deck/model_files/belt_hole_outer.step")

rivet = Workplane().circle(rivet_outer_radius).extrude(rivet_thickness)
rivet = (
    rivet.faces(">Z[0]")
    .circle(rivet_inner_radius + 1.10)
    .extrude(rivet_thickness, combine="cut")
)
rivet = rivet.faces(">Z[0]").circle(rivet_inner_radius - 0.15).extrude(rivet_thickness)
rivet = (
    rivet.faces(">Z[1]")
    .center(0, 0)
    .cylinder(rivet_thickness + 2, rivet_inner_radius - 1, combine="cut")
)
rivet = rivet.workplane(offset=1.0).circle(rivet_outer_radius + 1).extrude(1)

rivet_outer = Workplane().circle(rivet_inner_radius + 0.4).extrude(rivet_thickness)
rivet_outer = (
    rivet_outer.faces(">Z[0]")
    .circle(rivet_inner_radius)
    .extrude(rivet_thickness, combine="cut")
)
rivet_outer = (
    rivet_outer.workplane(offset=1.0).circle(rivet_outer_radius + 1).extrude(1)
)

loop = Workplane().box(loop_length, loop_width, loop_height)
loop_cut = Workplane().box(
    loop_length - loop_thickness - loop_side_thickness,
    loop_width,
    loop_height - loop_thickness,
)
loop = loop.cut(loop_cut)

loop_top = loop.faces(">Z[0]").workplane(offset=-1.8).split(keepTop=True)
loop_bottom = loop.faces(">Z[0]").workplane(offset=-1).split(keepBottom=True)

slide_bottom_cut_left = (
    Workplane()
    .move(-((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_bottom, loop_width, 2)
)
slide_bottom_cut_right = (
    Workplane()
    .move(((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_bottom, loop_width, 2)
)
slide_top_cut_left = (
    Workplane()
    .workplane(offset=-2.8)
    .move(-((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_top, loop_width, loop_height / 2)
)
slide_top_cut_right = (
    Workplane()
    .workplane(offset=-2.8)
    .move(((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_top, loop_width, loop_height / 2)
)

slide_bottom_union_left = (
    Workplane()
    .workplane(offset=1)
    .move(-((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_bottom - 0.3, loop_width, 1.8)
)
slide_bottom_union_right = (
    Workplane()
    .workplane(offset=1)
    .move(((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_bottom - 0.3, loop_width, 1.8)
)
slide_top_union_left = (
    Workplane()
    .workplane(offset=-1.8)
    .move(-((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_top, loop_width, loop_height / 2)
)
slide_top_union_right = (
    Workplane()
    .workplane(offset=-1.8)
    .move(((loop_length / 2) - loop_thickness), 0)
    .box(slide_width_top, loop_width, loop_height / 2)
)

loop_bottom = loop_bottom.cut(slide_bottom_cut_left)
loop_bottom = loop_bottom.cut(slide_bottom_cut_right)
loop_bottom = loop_bottom.cut(slide_top_cut_left)
loop_bottom = loop_bottom.cut(slide_top_cut_right)

loop_top = loop_top.union(slide_bottom_union_left)
loop_top = loop_top.union(slide_bottom_union_right)
loop_top = loop_top.union(slide_top_union_left)
loop_top = loop_top.union(slide_top_union_right)

loop_top = (
    loop_top.faces(">Z[0]")
    .rect(loop_width, loop_height, forConstruction=True)
    .vertices()
    .hole((rivet_outer_radius * 2) + 1)
)

cq.exporters.export(rivet, "/home/deck/model_files/rivet_inner.step")
cq.exporters.export(rivet_outer, "/home/deck/model_files/rivet_outer.step")
cq.exporters.export(loop_bottom, "/home/deck/model_files/loop_bottom.step")
cq.exporters.export(loop_top, "/home/deck/model_files/loop_top.step")

try:
    show_object(rivet_outer)
    # show_object(rivet)
    # show_object(loop_bottom)
    # show_object(loop_top)
except NameError:
    pass