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base: reed/cover-theif:533814c37d97e3b6c44305e0225a367896b3dfc1
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reed/cover-theif:master
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compare: reed/cover-theif:74ae6c40d4046e30e1b21a8813133fbd75c9d035
Branches Tags
reed/cover-theif:master
3 Commits
533814c37d ... 74ae6c40d4
Author SHA1 Message Date
reed 74ae6c40d4 feat: losen the tolerance for the shaft hub clearance diameter on the shaft mount 2026-07-21 18:35:20 -05:00
reed 6f51150803 feat: add counter bore holes for the screws going into the extrusion on the drive_shaft_bar_adapter 2026-07-21 18:35:19 -05:00
reed 3a9e2e5096 feat: angle the track on the drive_shaft_mount to make it more printable 2026-07-21 18:35:18 -05:00
1 changed files with 12 additions and 6 deletions
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cad/build.py
+12 -6
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@@ -1,4 +1,5 @@
# pyright: reportUnusedCallResult=false, reportWildcardImportFromLibrary=false # pyright: reportUnusedCallResult=false, reportWildcardImportFromLibrary=false
from math import radians, sin
from build123d import * from build123d import *
def build_drive_shaft_mount(): def build_drive_shaft_mount():
@@ -6,7 +7,7 @@ def build_drive_shaft_mount():
bearing_diameter = 22 bearing_diameter = 22
bearing_through_hole_diameter = 15 bearing_through_hole_diameter = 15
bearing_height = 7 bearing_height = 7
shaft_clearance_diameter = 25 shaft_clearance_diameter = 25.5
core_width = 40 core_width = 40
thickness = 20 thickness = 20
@@ -19,8 +20,9 @@ def build_drive_shaft_mount():
screw_head_depth = 5 screw_head_depth = 5
screw_body_diameter = 5 screw_body_diameter = 5
track_width = 6.2 track_width = 6.1
track_height = 1.8 track_height = 1.4
track_angle = 30
assert (bearing_offset - bearing_diameter / 2) > 0 assert (bearing_offset - bearing_diameter / 2) > 0
assert (core_width - bearing_diameter) > 0 assert (core_width - bearing_diameter) > 0
@@ -82,7 +84,9 @@ def build_drive_shaft_mount():
Triangle(A=90, b=1, c=1) Triangle(A=90, b=1, c=1)
extrude(amount=-((thickness / 2) + (bearing_height / 2)), mode=Mode.SUBTRACT) extrude(amount=-((thickness / 2) + (bearing_height / 2)), mode=Mode.SUBTRACT)
Box(core_width + (screw_blocks_width * 2), track_width, track_height, (90, 0, 0), (Align.CENTER, Align.CENTER, Align.MIN)) with BuildPart() as track:
Box(core_width + (screw_blocks_width * 2), track_width + ((sin(radians(track_angle))/sin(radians(90-track_angle))) * track_height * 2) - 0.012, track_height, (90, 0, 0), (Align.CENTER, Align.CENTER, Align.MIN))
chamfer(track.edges().filter_by(Axis.X).sort_by(Axis.Y)[:2], track_height - 0.01, angle=track_angle)
with Locations(drive_shaft_mount.faces().filter_by(Plane.XZ).sort_by(Axis.Y)[-2:]): with Locations(drive_shaft_mount.faces().filter_by(Plane.XZ).sort_by(Axis.Y)[-2:]):
CounterBoreHole(screw_body_diameter / 2, screw_head_diameter / 2, screw_head_depth) CounterBoreHole(screw_body_diameter / 2, screw_head_diameter / 2, screw_head_depth)
@@ -98,6 +102,8 @@ def build_drive_shaft_bar_adapter():
thickness = 10 thickness = 10
ext_screw_hole_diam = 6 ext_screw_hole_diam = 6
ext_screw_hole_head_diam = 10.5
ext_screw_hole_head_depth = 1
ext_screw_hole_offset = 10 ext_screw_hole_offset = 10
shaft_hub_bore_diam = 8 shaft_hub_bore_diam = 8
@@ -127,9 +133,9 @@ def build_drive_shaft_bar_adapter():
with BuildPart(screws_origin, mode=Mode.SUBTRACT) as ext_track_cut_out: with BuildPart(screws_origin, mode=Mode.SUBTRACT) as ext_track_cut_out:
Box(ext_size, ext_size, ext_screw_hole_diam + 8) Box(ext_size, ext_size, ext_screw_hole_diam + 8)
chamfer(ext_track_cut_out.edges(), 3) chamfer(ext_track_cut_out.edges(), 3)
with PolarLocations(0, 4): with PolarLocations((ext_size / 2) + thickness, 4):
with Locations(Rotation(0, 90, 0)): with Locations(Rotation(0, 90, 0)):
Hole(ext_screw_hole_diam / 2) CounterBoreHole(ext_screw_hole_diam / 2, ext_screw_hole_head_diam / 2, ext_screw_hole_head_depth)
# shaft interface # shaft interface
with Locations(drive_shaft_bar_adapter.faces().filter_by(Plane.XY).sort_by(Axis.Z)[1].offset(shaft_hub_screw_head_depth)): with Locations(drive_shaft_bar_adapter.faces().filter_by(Plane.XY).sort_by(Axis.Z)[1].offset(shaft_hub_screw_head_depth)):