Fix BK12 model
This commit is contained in:
parent
8e7fe382d2
commit
d71cbf1391
340
utils.py
340
utils.py
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@ -5,25 +5,26 @@ from ocp_vscode import *
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import localselectors
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class SFU1204:
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def __init__(self, base, l):
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self.w = base.workplane()
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self.len = l
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def ballscrew(self):
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profile = [
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(0, 0),
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(0, 8/2),
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(15, 8/2),
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(15, 10/2),
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(15+16, 10/2),
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(15+39, 10/2),
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(15+39, 12/2),
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(self.len - 10, 12/2),
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(self.len - 10, 8/2),
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(self.len, 8/2),
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(0, 8 / 2),
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(15, 8 / 2),
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(15, 10 / 2),
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(15 + 16, 10 / 2),
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(15 + 39, 10 / 2),
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(15 + 39, 12 / 2),
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(self.len - 10, 12 / 2),
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(self.len - 10, 8 / 2),
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(self.len, 8 / 2),
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(self.len, 0),
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]
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]
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w = self.w.moveTo(0, 0)
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for v in profile[1:]:
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w = w.lineTo(v[1], v[0])
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@ -32,41 +33,45 @@ class SFU1204:
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def nut(self, x):
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w = self.w.transformed(offset=(0, x, 0), rotate=(90, 0, 0))
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n = (w.sketch()
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.circle(40/2)
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.circle(12/2, mode='s')
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.rect(42, 30, mode='i')
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n = (
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w.sketch()
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.circle(40 / 2)
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.circle(12 / 2, mode="s")
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.rect(42, 30, mode="i")
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.finalize()
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.extrude(10)
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.faces(">z")
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.copyWorkplane(w)
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.transformed(offset=(0, 0, 10))
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.workplane()
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.tag("nut_face")
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.sketch()
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.circle(22/2)
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.circle(12/2, mode='s')
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.circle(22 / 2)
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.circle(12 / 2, mode="s")
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.finalize()
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.extrude(25))
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hole_r = 32/2
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hole_pts = [
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(hole_r*math.cos(angle*math.pi/180),
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hole_r*math.sin(angle*math.pi/180)) for angle in
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[-45, 0, 45, 180-45, 180, 180+45]]
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n = (n.workplaneFromTagged("nut_face")
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.pushPoints(hole_pts)
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.hole(4.8)
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.extrude(25)
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)
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hole_r = 32 / 2
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hole_pts = [
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(
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hole_r * math.cos(angle * math.pi / 180),
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hole_r * math.sin(angle * math.pi / 180),
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)
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for angle in [-45, 0, 45, 180 - 45, 180, 180 + 45]
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]
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n = n.workplaneFromTagged("nut_face").pushPoints(hole_pts).hole(4.8)
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return n
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def nutHoles(self, solid, x):
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w = self.w.transformed(offset=(0, x, 0), rotate=(90, 0, 0))
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hole_r = 32/2
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hole_r = 32 / 2
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hole_pts = [
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(hole_r*math.cos(angle*math.pi/180),
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hole_r*math.sin(angle*math.pi/180)) for angle in
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[-45, 0, 45, 180-45, 180, 180+45]]
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solid = (solid.copyWorkplane(w)
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.pushPoints(hole_pts)
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.hole(4.8))
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(
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hole_r * math.cos(angle * math.pi / 180),
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hole_r * math.sin(angle * math.pi / 180),
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)
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for angle in [-45, 0, 45, 180 - 45, 180, 180 + 45]
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]
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solid = solid.copyWorkplane(w).pushPoints(hole_pts).hole(4.8)
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return solid
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def fixedBearing(self):
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@ -89,18 +94,19 @@ class SFU1204:
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X = 6.6
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Y = 10.8
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Z = 1.5
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w = self.w.transformed(offset=(0, 39+15-L, 0), rotate=(-90, 0, 0))
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w2 = w.transformed(offset=(0, (H-H1)/2, 0))
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w = self.w.transformed(offset=(0, 39 + 15, 0), rotate=(-90, 180, 0))
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w2 = w.transformed(offset=(0, h - H1 / 2, 0))
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w3 = w.transformed(offset=(0, E / 2, 0))
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bearing = (w
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.rect(B1, B1)
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.extrude(L1+L)
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bearing = (
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w.rect(B1, B1)
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.extrude(L1 + L)
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.copyWorkplane(w2)
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.rect(B, H1)
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.extrude(L)
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.copyWorkplane(w.transformed(rotate=(180, 0, 0)))
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.hole(d1)
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.copyWorkplane(w2.transformed(rotate=(180, 0, 0)))
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.copyWorkplane(w3.transformed(rotate=(180, 0, 0)))
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.rect(P, E, forConstruction=True)
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.vertices()
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.hole(d2)
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@ -130,12 +136,9 @@ class SFU1204:
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Y = 10.8
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Z = 1.5
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w = self.w.transformed(offset=(0, 39+15-L, -(H-H1)/2), rotate=(-90, 0, 0))
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return (solid
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.copyWorkplane(w)
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.rect(P, E, forConstruction=True)
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.vertices()
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.hole(d2)
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w = self.w.transformed(offset=(0, 39 + 15, -E / 2), rotate=(-90, 0, 0))
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return (
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solid.copyWorkplane(w).rect(P, E, forConstruction=True).vertices().hole(d2)
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)
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def floatingBearing(self):
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@ -154,24 +157,33 @@ class SFU1204:
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Y = 10.8
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Z = 1.5
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w = self.w.transformed(offset=(0, self.len-10, 0), rotate=(-90, 0, 0))
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b = (w
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.rect(B1, B1)
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w = self.w.transformed(
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offset=(0, self.len - 10 + 7 / 2 - L / 2, 0), rotate=(-90, 0, 0)
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)
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b = (
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w.rect(B1, B1)
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.extrude(L)
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.faces(">z")
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.copyWorkplane(w.transformed(offset=(0, 0, L), rotate=(0, 0, 180)))
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.workplane()
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.tag("floating_far_end")
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.copyWorkplane(w)
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.center(0, (H-H1)/2)
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.center(0, h - H1 / 2)
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.rect(B, H1)
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.extrude(L)
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.workplaneFromTagged("floating_far_end")
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.hole(d1)
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.workplaneFromTagged("floating_far_end")
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.center(0, -(H-H1)/2)
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.center(0, -E / 2)
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.rect(P, E, forConstruction=True)
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.vertices()
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.hole(d2)
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.copyWorkplane(w)
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.circle(30 / 2)
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.extrude(L / 2 - 7 / 2, combine="s")
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.workplaneFromTagged("floating_far_end")
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.transformed(rotate=(180, 0, 0))
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.circle(30 / 2)
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.extrude(L / 2 - 7 / 2, combine="s")
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)
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return b
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@ -191,51 +203,54 @@ class SFU1204:
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Y = 10.8
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Z = 1.5
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w = self.w.transformed(offset=(0, self.len-10+L, 0), rotate=(90, 0, 0))
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solid = (solid
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.copyWorkplane(w)
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.center(0, -(H-H1)/2)
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w = self.w.transformed(offset=(0, self.len - 10 + L, 0), rotate=(90, 0, 0))
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solid = (
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solid.copyWorkplane(w)
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.center(0, -E / 2)
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.rect(P, E, forConstruction=True)
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.vertices()
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.hole(d2)
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)
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return solid
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# it's oriented along the y axis of the given base plane
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class HGR20:
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def __init__(self, base, l):
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self.base = base.workplane()
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self.l = l
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def holes(self, w):
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pts = []
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x = 20
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while x < self.l + 1e-6:
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pts.append((x - self.l/2, 0))
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pts.append((x - self.l / 2, 0))
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x += 60
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w = (w.copyWorkplane(self.base)
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.transformed(offset=(0,0,17))
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.pushPoints(pts)
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.hole(5))
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w = (
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w.copyWorkplane(self.base)
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.transformed(offset=(0, 0, 17))
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.pushPoints(pts)
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.hole(5)
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)
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return w
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def rail_sketch(s = None):
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def rail_sketch(s=None):
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# pixel coordinates based on a picture in the Hiwin's
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# linear rail guidebook
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hgr_profile = [
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(0, 0),
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(37, 0),
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(37 + 6, 6),
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(96 - 6, 6),
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(96, 0),
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(186-17, 0),
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(186 - 17, 0),
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(186, 17),
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(186, 76),
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(129, 133),
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(129, 59 + 133),
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(129 + 20, 59 + 133 + 20),
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#(31, 129 + 20 + 31, 133 + 20 + 31),
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# (31, 129 + 20 + 31, 133 + 20 + 31),
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(186 - 6, 316 - 42 - 25 - 6),
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(186, 316 - 42 - 25),
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(186, 316 - 42),
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@ -243,9 +258,9 @@ class HGR20:
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(31, 186 - 6 - 31, 316 - 6 - 1),
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(143 + 6, 316 - 6),
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(143, 316),
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(0, 316)
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]
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scale = (10/186*17/316)**0.5
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(0, 316),
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]
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scale = (10 / 186 * 17 / 316) ** 0.5
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scaled_profile = [tuple((scale * v for v in vals)) for vals in hgr_profile]
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if s is None:
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s = cq.Sketch()
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@ -263,163 +278,171 @@ class HGR20:
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s = s.segment((-v[1], v[2]))
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s = s.segment((0, 0))
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return s
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def rail(self): # workplane or face to use, length of rail
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def rail(self): # workplane or face to use, length of rail
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# TODO rotate w
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xy = cq.Workplane().copyWorkplane(self.base)
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w = xy.transformed((90, 90, 0), (-self.l/2, 0, 0))
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w = xy.transformed((90, 90, 0), (-self.l / 2, 0, 0))
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w = w.placeSketch(HGR20.rail_sketch().assemble())
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w = w.extrude(self.l)
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x = 20
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pts = []
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while x < self.l:
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pts.append((x-self.l/2, 0))
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pts.append((x - self.l / 2, 0))
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x += 60
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#print("points", pts)
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w = (w.copyWorkplane(xy)
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.transformed(offset=(0,0,17))
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.pushPoints(pts)
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.hole(5)) # TODO replace with counterbore and get proper diameter
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# print("points", pts)
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w = (
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w.copyWorkplane(xy).transformed(offset=(0, 0, 17)).pushPoints(pts).hole(5)
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) # TODO replace with counterbore and get proper diameter
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return w
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W = 44
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H = 30
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H1 = 4.6
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L = 77.5
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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B = 32
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C = 36
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l = 5 # M5x6
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l = 5 # M5x6
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T = 6
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def carriage(self, x): # HGH20CA
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def carriage(self, x): # HGH20CA
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W = 44
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H = 30
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H1 = 4.6
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L = 77.5
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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B = 32
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C = 36
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l = 5 # M5x6
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l = 5 # M5x6
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T = 6
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xy = cq.Workplane().copyWorkplane(self.base)
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w = xy.transformed((90, 90, 0), (-self.l/2 + x, 0, 0)).tag("endplane")
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w = xy.transformed((90, 90, 0), (-self.l / 2 + x, 0, 0)).tag("endplane")
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# TODO
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s = (cq.Sketch()
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.segment((W/2, H1), (W/2, H))
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.segment((-W/2, H))
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.segment((-W/2, H1))
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.segment((W/2, H1))
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.assemble()
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)
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s = (
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cq.Sketch()
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.segment((W / 2, H1), (W / 2, H))
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.segment((-W / 2, H))
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.segment((-W / 2, H1))
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.segment((W / 2, H1))
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.assemble()
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)
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s = s.face(HGR20.rail_sketch().assemble(), mode="s")
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s2 = (cq.Sketch()
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.segment((W/2, H1), (W/2, H-3))
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.segment((-W/2, H-3))
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.segment((-W/2, H1))
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.segment((W/2, H1))
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.assemble()
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)
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s2 = (
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cq.Sketch()
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.segment((W / 2, H1), (W / 2, H - 3))
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.segment((-W / 2, H - 3))
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.segment((-W / 2, H1))
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.segment((W / 2, H1))
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.assemble()
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)
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s2 = s2.face(HGR20.rail_sketch().assemble(), mode="s")
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pts = []
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def savePointsF(l, p):
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l.append(p)
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return p
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#origin = w.workplane().plane.toWorldCoords(cq.Vector(0, 0, 0))
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#norm = w.workplane().plane.toWorldCoords(cq.Vector(0, 1, 0))
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#norm = norm - origin
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#print(norm)
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# origin = w.workplane().plane.toWorldCoords(cq.Vector(0, 0, 0))
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# norm = w.workplane().plane.toWorldCoords(cq.Vector(0, 1, 0))
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# norm = norm - origin
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# print(norm)
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# FINALLY GOT THIS WORKING
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w = (w.transformed((0, 0, 0), (0, 0, L/2-L1/2))
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.placeSketch(s).extrude(L1)
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.workplaneFromTagged("endplane")
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.placeSketch(s2)
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.extrude(L)
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#.faces(cq.DirectionMinMaxSelector(norm, True))
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.faces(">y")
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.workplane()
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.transformed((0, 0, 0), (L/2 + x, 0, 0))
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.rect(C, B)
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.tag("mountingholes")
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.vertices() # carriage mounting holes are here!
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#.extrude(20)
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.hole(l, T)
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)
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w = (
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w.transformed((0, 0, 0), (0, 0, L / 2 - L1 / 2))
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.placeSketch(s)
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.extrude(L1)
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.workplaneFromTagged("endplane")
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.placeSketch(s2)
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.extrude(L)
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# .faces(cq.DirectionMinMaxSelector(norm, True))
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.faces(">y")
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.workplane()
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.transformed((0, 0, 0), (L / 2 + x, 0, 0))
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.rect(C, B)
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.tag("mountingholes")
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.vertices() # carriage mounting holes are here!
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# .extrude(20)
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.hole(l, T)
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)
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return w
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def carriageHoles(self, w, x):
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W = 44
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H = 30
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H1 = 4.6
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L = 77.5
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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L1 = 50.1 # for HGH20CA, TODO deal with variations
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B = 32
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C = 36
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l = 5 # M5x6
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l = 5 # M5x6
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T = 6
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xy = cq.Workplane().copyWorkplane(self.base).transformed(offset=(0, 0, H))
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holes = (xy.transformed((0, 0, 0), (-self.l/2+L/2 + x, 0, 0))
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.rect(C, B)
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.vertices()
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.cylinder(1000, l/2)
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)
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w = (w.cut(holes))
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holes = (
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xy.transformed((0, 0, 0), (-self.l / 2 + L / 2 + x, 0, 0))
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.rect(C, B)
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.vertices()
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.cylinder(1000, l / 2)
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)
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w = w.cut(holes)
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return w
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class Plate:
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# TODO add standard thicknesses here
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pass
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def inch(x):
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return 25.4*x
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return 25.4 * x
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def tubing(l, x, y, w, workplane):
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return (workplane
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.placeSketch(cq.Sketch()
|
||||
.rect(x, y)
|
||||
.rect(x - 2*w, y-2*w, mode='s'))
|
||||
.extrude(l))
|
||||
return workplane.placeSketch(
|
||||
cq.Sketch().rect(x, y).rect(x - 2 * w, y - 2 * w, mode="s")
|
||||
).extrude(l)
|
||||
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
plate = (cq.Workplane("XY")
|
||||
.rect(200, 200)
|
||||
.extrude(10)
|
||||
.faces(">Z")
|
||||
.workplane()
|
||||
.tag("railmount")
|
||||
.end()
|
||||
)
|
||||
plate = (
|
||||
cq.Workplane("XY")
|
||||
.rect(200, 200)
|
||||
.extrude(10)
|
||||
.faces(">Z")
|
||||
.workplane()
|
||||
.tag("railmount")
|
||||
.end()
|
||||
)
|
||||
|
||||
hgr20 = HGR20(plate.workplaneFromTagged("railmount"), 300)
|
||||
plate2 = hgr20.holes(plate)
|
||||
hgrtest = hgr20.rail()
|
||||
carriage = hgr20.carriage(0)
|
||||
plate3 = (cq.Workplane("XY")
|
||||
plate3 = (
|
||||
cq.Workplane("XY")
|
||||
.copyWorkplane(carriage.workplaneFromTagged("mountingholes"))
|
||||
.rect(200, 200)
|
||||
.extrude(5)
|
||||
)
|
||||
)
|
||||
plate3 = hgr20.carriageHoles(plate3, 0)
|
||||
tube1 = tubing(500, inch(2), inch(1), inch(0.062), cq.Workplane("XZ"))
|
||||
|
||||
ball_screw = SFU1204(cq.Workplane(), 500)
|
||||
|
||||
#show_object(plate2)
|
||||
#show_object(hgrtest)
|
||||
#show_object(carriage)
|
||||
#show_object(plate3)
|
||||
#show_object(tube1)
|
||||
# show_object(plate2)
|
||||
# show_object(hgrtest)
|
||||
# show_object(carriage)
|
||||
# show_object(plate3)
|
||||
# show_object(tube1)
|
||||
|
||||
show_object(ball_screw.ballscrew())
|
||||
show_object(ball_screw.nut(200))
|
||||
nut_holder = (cq.Workplane("XZ")
|
||||
.transformed(offset=(0, 0, -200-50))
|
||||
nut_holder = (
|
||||
cq.Workplane("XZ")
|
||||
.transformed(offset=(0, 0, -200 - 50))
|
||||
.rect(40, 30)
|
||||
.extrude(50)
|
||||
.faces(">z")
|
||||
|
|
@ -429,7 +452,8 @@ if __name__ == "__main__":
|
|||
fixed = ball_screw.fixedBearing()
|
||||
show_object(nut_holder)
|
||||
show_object(fixed)
|
||||
bearing_holder = (cq.Workplane("XZ")
|
||||
bearing_holder = (
|
||||
cq.Workplane("XZ")
|
||||
.transformed(offset=(0, 0, 0))
|
||||
.rect(60, 80)
|
||||
.extrude(20)
|
||||
|
|
@ -440,7 +464,8 @@ if __name__ == "__main__":
|
|||
show_object(bearing_holder)
|
||||
bearing2 = ball_screw.floatingBearing()
|
||||
show_object(bearing2)
|
||||
bearing_holder2 = (cq.Workplane("XZ")
|
||||
bearing_holder2 = (
|
||||
cq.Workplane("XZ")
|
||||
.transformed(offset=(0, 0, -540))
|
||||
.rect(60, 80)
|
||||
.extrude(20)
|
||||
|
|
@ -450,4 +475,5 @@ if __name__ == "__main__":
|
|||
bearing_holder2 = ball_screw.floatingBearingHoles(bearing_holder2)
|
||||
show_object(bearing_holder2)
|
||||
|
||||
#show_object(cq.Workplane().placeSketch(HGR20.rail_sketch().assemble()).extrude(10))
|
||||
# show_object(cq.Workplane().placeSketch(HGR20.rail_sketch().assemble()).extrude(10))
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue