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Update stopper and add a PTFE guide into extrueder

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This commit is contained in:
Alex Selimov 2026-09-21 22:45:39 -04:00
parent 335f002a1a
commit 2a430dc28a
2 changed files with 87 additions and 4 deletions
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73
space_pi_se_PTFE_guide.py Normal file
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@ -0,0 +1,73 @@
# /// script
# requires-python = ">=3.14"
# dependencies = ["ocp_vscode", "build123d"]
# ///
from build123d import *
from ocp_vscode import *
### Dimensions ###
bolt_spacing = 17 * MM
bolt_hole_diameter = 4 * MM
z_rod_diameter = 10 * MM
buffer = 4 * MM
bolt_to_PTFE_offset = 2 * MM
base_length = 30 * MM
bolt_to_holder_offset = 20 * MM
wall_thickness = 2 * MM
PTFE_radius = 2.5 * MM
holder_length = 14 * MM
###################
with BuildPart() as guide:
with BuildSketch() as sketch:
Rectangle(
2 * buffer + base_length,
2 * buffer + bolt_spacing + bolt_hole_diameter,
align=(Align.MIN, Align.MIN),
)
with Locations(
(buffer + bolt_hole_diameter / 2.0, buffer + bolt_hole_diameter / 2.0),
(
buffer + bolt_hole_diameter / 2.0,
buffer + bolt_hole_diameter / 2.0 + bolt_spacing,
),
):
Circle(radius=bolt_hole_diameter / 2.0, mode=Mode.SUBTRACT)
with Locations(
(
buffer + bolt_hole_diameter / 2.0,
buffer + bolt_spacing / 2.0 + bolt_hole_diameter / 2.0,
),
):
Circle(radius=z_rod_diameter / 2.0, mode=Mode.SUBTRACT)
Rectangle(
z_rod_diameter / 2.0 + buffer,
z_rod_diameter,
mode=Mode.SUBTRACT,
align=(Align.MAX, Align.CENTER),
)
extrude(amount=wall_thickness)
with BuildSketch(Plane.YZ.offset(buffer + bolt_to_holder_offset)) as sketch:
with Locations(
(
buffer + bolt_hole_diameter / 2.0 + bolt_to_PTFE_offset,
PTFE_radius + wall_thickness,
),
):
Circle(
radius=PTFE_radius + wall_thickness, align=(Align.CENTER, Align.CENTER)
)
Circle(
radius=PTFE_radius,
align=(Align.CENTER, Align.CENTER),
mode=Mode.SUBTRACT,
)
extrude(amount=holder_length)
show(guide)
export_stl(guide.part, "guide.stl")

18
space_pi_se_PTFE_stopper.py
View file

@ -23,14 +23,24 @@ with BuildPart() as stopper:
Circle(diameter_at_hole / 2.0 + 0.5 * MM)
Circle(diameter_at_hole / 2.0, mode=Mode.SUBTRACT)
extrude(amount=ptfe_length)
offset = ptfe_length + washer_thickness
with BuildSketch(Plane.XY.offset(offset)) as sketch:
z_offset = ptfe_length + washer_thickness
with BuildSketch(Plane.XY.offset(z_offset)) as sketch:
Circle(diameter_at_hole / 2.0 + 0.5 * MM)
Circle(diameter_at_hole / 2.0, mode=Mode.SUBTRACT)
offset += filament_length
with BuildSketch(Plane.XY.offset(offset)) as sketch:
z_offset += filament_length
with BuildSketch(Plane.XY.offset(z_offset)) as sketch:
Circle(diameter_at_filament / 2.0 + 0.5 * MM)
Circle(diameter_at_filament / 2.0, mode=Mode.SUBTRACT)
loft()
with BuildSketch(Plane.XZ) as sketch:
with Locations((0, z_offset)):
with BuildLine():
l1 = RadiusArc(
(diameter_at_filament / 2.0, 0), (diameter_at_hole / 2, 1), radius=1
)
offset(amount=0.5 * MM, side=Side.RIGHT)
make_face()
revolve(axis=Axis.Z)
show(stopper)
export_stl(stopper.part, "stopper.stl")