55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
# This is the arm from the monitor to the "elbow"
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import cadquery2 as cq
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from cadquery2 import exporters
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from hinge import hinge_gap, hinge_w, hinge_profile_1, hinge_profile_2, hinge_t
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# monitor hinge dimensions
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inner_monitor_hinge = 3.2 / 2
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outer_monitor_hinge = hinge_w / 2
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monitor_hinge_shape = (
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cq.Sketch().circle(outer_monitor_hinge).circle(inner_monitor_hinge, mode="s")
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)
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# Both hinges are the same shape, just one is outer and the other inner
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elbow_hinge_shape = (
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cq.Sketch().circle(outer_monitor_hinge).circle(inner_monitor_hinge, mode="s")
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)
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arm_length = 150
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arm_width = hinge_gap
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upper_arm = (
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cq.Workplane("XY")
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.rect(hinge_w, hinge_gap)
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.extrude(arm_length)
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.edges("|Z or <Z or >Z")
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.fillet(0.25)
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.faces(">Y")
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# Add hinge that connects to the monitor
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.workplane(centerOption="CenterOfBoundBox")
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.center(0, arm_length / 2 + (outer_monitor_hinge - inner_monitor_hinge))
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.placeSketch(monitor_hinge_shape)
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.extrude(-hinge_gap)
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.center(0, -(arm_length + outer_monitor_hinge))
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# Add hinge that connects to the elbow
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.transformed(rotate=cq.Vector(0, 0, 180))
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.workplane(offset=(20 - arm_width) / 2)
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.center(-hinge_w / 2, 0)
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.tag("hingeplane")
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.placeSketch(hinge_profile_1)
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.extrude(-hinge_t)
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.workplaneFromTagged("hingeplane")
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.workplane(offset=-hinge_t - hinge_gap)
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.placeSketch(hinge_profile_2)
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.extrude(-hinge_t)
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.workplaneFromTagged("hingeplane")
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.center(+hinge_w / 2, 0)
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.rect(hinge_w, hinge_w + 6)
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.extrude(-(2 * hinge_t + hinge_gap))
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)
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exporters.export(upper_arm, "upper_arm.stl")
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