79 lines
2.7 KiB
Python
79 lines
2.7 KiB
Python
"""Auto-converted from x-end.scad — cadbuildr.foundation port."""
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from cadbuildr.foundation import (
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Part, Sketch, Point,
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Square, Rectangle, Circle, RegularPolygon, RectangleRounded,
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Extrusion, Lathe, Hole,
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Cylinder, Box, Sphere, Cone,
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show,
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)
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# === SCAD constants reproduced verbatim ===
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rod_distance = 45
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bearing_diameter = 14.95
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thinwall = 3
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bearing_size = bearing_diameter + 2 * thinwall
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class XEnd(Part):
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def __init__(self):
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super().__init__()
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sketch = self._sketch = Sketch(self.xy())
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# === x_end_base() ===
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# Main block: translate([-15,-9,height/2]) cube([17,39,58], center=true)
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height = 58
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self._add_box(-15, -9, height/2, 17, 39, height)
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self._add_box(-8 + 5/2, -28.5 + 1/2, 13.5/2, 5, 1, 13.5)
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# Vertical bearing base
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self._add_box(-2 - bearing_size/4, 0, 29, 4 + bearing_size/2, bearing_size, 58)
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self._add_cyl(0, 0, 29, bearing_size/2, 58)
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# Nut trap cylinder
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self._add_cyl(0, -17, 0, 12.5, 13.5)
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self._add_cyl(0, -17, 13, 12.5, 3)
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# === x_end_holes() (cuts) ===
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# Vertical bearing bore
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self._add_cyl(0, 0, 31, bearing_diameter/2 + 0.2, 62, cut=True)
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# Belt stress relief slot
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self._add_box(-15, -10, 30, 10, 46, 28, cut=True)
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# Bottom pushfit rod hole
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self._add_cyl(-15, -41, 6, 7.8/2, 50, cut=True)
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# Top pushfit rod hole
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self._add_cyl(-15, -41.5, rod_distance + 6, 7.8/2, 50, cut=True)
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# TR Nut hole
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self._add_cyl(0, -17, -1, 6.7, 14.51, cut=True)
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# Screw holes for TR nut (approx positions)
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self._add_cyl(0 + 9.5 * 0.707, -17 - 9.5 * 0.707, -4, 1.65, 19, cut=True)
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self._add_cyl(0 - 9.5 * 0.707, -17 + 9.5 * 0.707, -4, 1.65, 19, cut=True)
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# Nut traps (hex approx as cylinders)
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self._add_cyl(0 + 9.5 * 0.707, -17 - 9.5 * 0.707, 11, 3.15, 6, cut=True)
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self._add_cyl(0 - 9.5 * 0.707, -17 + 9.5 * 0.707, 10, 3.1, 3, cut=True)
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def _pt(self, x, y):
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return Point(self._sketch, x, y)
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def _add_box(self, x, y, z, w, d, h, cut=False):
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self.add_operation(Box(self._pt(x, y), w, d, h, cut=cut))
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def _add_cyl(self, x, y, z, radius, height, cut=False):
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self.add_operation(Cylinder(self._pt(x, y), radius, height, cut=cut))
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def _add_cone(self, x, y, z, r1, r2, height):
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self.add_operation(Cone(self._pt(x, y), r1, r2, height))
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def _add_sphere(self, x, y, z, radius, cut=False):
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self.add_operation(Sphere(self._pt(x, y), radius, cut=cut))
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def _add_extrusion(self, shape, end, start=0, cut=False):
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self.add_operation(Extrusion(shape, end=end, start=start, cut=cut))
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part = XEnd()
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show(part)
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