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Curved follow focus

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This commit is contained in:
Christian Colglazier 2022-05-17 14:44:49 -04:00
parent 977951042c
commit fa313ef0b2
1 changed files with 12 additions and 2 deletions
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14
follow_focus.py
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@ -1,13 +1,23 @@
import cadquery as cq
import math
slant_degree=15.0
thickness=20
rod_thickness=15.2
loop_thickness=1.5
stepper_motor_size=42
offset=8.83
base = cq.Workplane('XY').lineTo(0,offset).polarLine(42 ,90-slant_degree).hLine(43.4816).polarLine(45,270-slant_degree).polarLine(10,-(90-2*slant_degree))
gap = stepper_motor_size * math.sin(math.radians(slant_degree)) / math.sin(math.radians(90-slant_degree))
width = math.sqrt(gap**2 + stepper_motor_size**2 - 2*gap*stepper_motor_size*math.cos(math.radians(90)))
base = cq.Workplane('XY').lineTo(0,offset).polarLine(stepper_motor_size, 90-slant_degree)
base = base.hLine(width).polarLine(stepper_motor_size-2,270-slant_degree).tangentArcPoint((6,-11))
base = base.threePointArc((50,-20), (25, -30)).polarLine(10, 180-slant_degree).vLine(10).polarLine(12.5, -slant_degree)
base = base.threePointArc((35, -20), (25, 0)).polarLine(10, 180-slant_degree).close().extrude(20)
base = base.threePointArc((35, -20), (25, 0)).polarLine(10, 180-slant_degree)
base = base.close().extrude(20)
# Render
show_object(base)