2022-07-22 21:23:27 +00:00
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import cadquery2 as cq
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from cadquery2 import exporters
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from parameters import *
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# Small M3x8 screw
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screw_l = 10
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screw_shaft = 8
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screw_head_h = 2.5
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screw_head_radius = 3.5
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screw_radius = 1.5
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2022-07-23 14:26:55 +00:00
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from hinge import hinge_profile_1, hinge_profile_2, hinge_t, hinge_gap, hinge_w
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2022-07-22 21:23:27 +00:00
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reinforcement_height = 1 + 1 + ti_depth - shell_t
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2022-07-23 13:13:27 +00:00
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rear_mount_thickness = reinforcement_height + screw_head_h + shell_t
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rear_mount_width = width / 2 + 2 * shell_t
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2022-07-22 21:23:27 +00:00
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back_reinforcement_cutout = (
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cq.Sketch()
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.trapezoid(width / 2 + 1, 15 + 1, 90, mode="a")
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.reset()
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.vertices()
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.fillet(2)
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)
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back_reinforcement_outer = (
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cq.Sketch()
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2022-07-23 13:13:27 +00:00
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.trapezoid(rear_mount_width, 15 + 2 * shell_t, 90, mode="a")
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2022-07-22 21:23:27 +00:00
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.reset()
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.vertices()
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.fillet(2)
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)
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2022-07-23 13:07:56 +00:00
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# FIXME: use counterbore holes function instead
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2022-07-22 21:23:27 +00:00
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screw_holes = cq.Sketch().rarray(width / 8, 0, 4, 1).circle(screw_radius, mode="a")
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screw_countersinks = (
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cq.Sketch().rarray(width / 8, 0, 4, 1).circle(screw_head_radius, mode="a")
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)
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2022-07-23 13:07:56 +00:00
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2022-07-22 21:23:27 +00:00
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rear_mount = (
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# Basic filleted box shape
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cq.Workplane("bottom")
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.placeSketch(back_reinforcement_outer)
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2022-07-23 13:07:56 +00:00
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.extrude(rear_mount_thickness)
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2022-07-22 21:23:27 +00:00
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.faces(">Y")
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.workplane(centerOption="CenterOfBoundBox")
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.placeSketch(back_reinforcement_cutout)
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.cutBlind(-reinforcement_height)
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.faces("<Y")
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.workplane(centerOption="CenterOfBoundBox")
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.placeSketch(screw_holes)
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.cutBlind(-1000)
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.faces("<Y")
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.workplane(centerOption="CenterOfBoundBox")
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.placeSketch(screw_countersinks)
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.cutBlind(-screw_head_h)
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2022-07-23 13:07:56 +00:00
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# Hinge integration
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.faces(">X")
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2022-07-23 13:16:47 +00:00
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.workplane(centerOption="CenterOfBoundBox", offset=-(rear_mount_width-20)/2)
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2022-07-23 13:07:56 +00:00
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.transformed(rotate=cq.Vector(0, 0, 90))
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2022-07-23 15:57:54 +00:00
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.center(-hinge_s / 2, rear_mount_thickness / 2).tag("hingeplane")
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2022-07-23 13:07:56 +00:00
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.placeSketch(hinge_profile_1)
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.extrude(-hinge_t)
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2022-07-23 13:24:08 +00:00
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.workplaneFromTagged("hingeplane")
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2022-07-23 15:57:54 +00:00
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.workplane(offset=-hinge_t - hinge_)
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2022-07-23 13:13:27 +00:00
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.placeSketch(hinge_profile_2)
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2022-07-23 13:24:08 +00:00
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.extrude(-hinge_t))
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2022-07-22 21:23:27 +00:00
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2022-07-23 13:24:08 +00:00
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exporters.export(rear_mount, "rear_mount.stl")
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