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Fix tabs (spheres) in the top end of the hexagon #49

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Fix tabs (spheres) in the top end of the hexagon #49

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108add3
Fix tabs (spheres) in the top end of the hexagon
marcos-diaz Jan 30, 2025
3ee90a0
Tweak size, deterministic fix
marcos-diaz Mar 27, 2025
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22 changes: 17 additions & 5 deletions build123d/hexagon.py
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,11 @@
TRAPEZ_Z_LEN = 18
TRAPEZ_TIP = 2.2

TABS_Z_LEN = 4
ALIGN_TAB_Z_LEN = 4

FIT_TAB_RADIUS = 1.6
FIT_TAB_X = 8
FIT_TAB_Z = 2


with BuildPart() as chex:
Expand Down Expand Up @@ -54,19 +58,27 @@
mirror(about=Plane.YZ)
make_face()
extrude(amount=TRAPEZ_THICKNESS/2, both=True)
# Fit tabs.
with Locations((FIT_TAB_X, 0, FIT_TAB_Z)):
Sphere(FIT_TAB_RADIUS)
with Locations((-FIT_TAB_X, 0, FIT_TAB_Z)):
Sphere(FIT_TAB_RADIUS)
# Place Trapezoid instances.
with Locations((0, 0, BASE_Z_LEN)):
add(trapezoid_pt, rotation=(0, 0, -45))
add(trapezoid_pt, rotation=(0, 0, 45))

# Tabs (to prevent wrong insertion).
tab_z = TRAPEZ_Z_LEN - TABS_Z_LEN
# Align Tabs (to prevent wrong insertion).
tab_z = TRAPEZ_Z_LEN - ALIGN_TAB_Z_LEN
normal = Axis(origin=(0,0,0), direction=(1,1,0))
face1 = (chex.faces()
.filter_by(normal)[1]
.filter_by(normal)
.sort_by(Axis.Y)[1]
.split(Plane.XY.offset(tab_z), keep=Keep.TOP)
)
face2 = (chex.faces()
.filter_by(normal)[3]
.filter_by(normal)
.sort_by(Axis.Y)[2]
.split(Plane.XY.offset(tab_z), keep=Keep.TOP)
)
extrude(face1, until=Until.NEXT, dir=(0,1,0))
Expand Down