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adapt worm_gear for solidpython 2.1.1
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@bat52
bat52 committed Feb 5, 2025
1 parent 4a7d002 commit 2d77761
Showing 1 changed file with 53 additions and 42 deletions.
95 changes: 53 additions & 42 deletions src/pylele/parts/worm_gear.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
https://www.thingiverse.com/thing:6664561
"""

from solid2.extensions.bosl2.gears import worm_gear, worm
from solid2.extensions.bosl2.gears import worm_gear, worm, enveloping_worm, worm_gear_thickness, worm_dist

import os
import sys
Expand All @@ -26,12 +26,12 @@ def configure(self):
Solid.configure(self)

# gear parameters
self.modulus = 2
self.worm_pitch = 3
self.modulus = 1.5
self.circ_pitch = 3 # The circular pitch, the distance between teeth centers around the pitch circle. Default: 5
self.worm_diam = 10
self.worm_starts = 1
self.teeth = 15
self.pressure_angle = 32
self.teeth = 14 # The number of teeth in the mated worm gear.
self.pressure_angle = 25 # 32

# inferred parameters
self.gear_diam = 14.6
Expand Down Expand Up @@ -61,18 +61,6 @@ def configure(self):
def gen(self) -> Shape:
assert self.isCut or (self.cli.implementation in [Implementation.SOLID2, Implementation.MOCK])

"""
Usage: As a Module
worm_gear(circ_pitch, teeth, worm_diam, [worm_starts=], [worm_arc=], [crowning=], [left_handed=], [pressure_angle=], [backlash=], [clearance=], [slices=], [shaft_diam=]) [ATTACHMENTS];
worm_gear(mod=, teeth=, worm_diam=, [worm_starts=], [worm_arc=], [crowning=], [left_handed=], [pressure_angle=], [backlash=], [clearance=], [slices=], [shaft_diam=]) [ATTACHMENTS];
Usage: As a Function
vnf = worm_gear(circ_pitch, teeth, worm_diam, [worm_starts=], [worm_arc=], [crowning=], [left_handed=], [pressure_angle=], [backlash=], [clearance=], [slices=]);
vnf = worm_gear(mod=, teeth=, worm_diam=, [worm_starts=], [worm_arc=], [crowning=], [left_handed=], [pressure_angle=], [backlash=], [clearance=], [slices=])
"""

tol = self.cut_tolerance if self.isCut else 0

## gear
Expand All @@ -83,15 +71,22 @@ def gen(self) -> Shape:
)
else:
gear = self.api.genShape(
solid=worm_gear(circ_pitch=self.worm_pitch,
solid=worm_gear(circ_pitch=self.circ_pitch,
teeth=self.teeth,
worm_diam=self.worm_diam,
worm_starts=self.worm_starts,
pressure_angle=self.pressure_angle,
mod = self.modulus
# mod = self.modulus,
spin = 12,
worm_arc = 59
)
).rotate_z(5)

)
gear_h = worm_gear_thickness(
circ_pitch=self.circ_pitch,
teeth=self.teeth,
worm_diam=self.worm_diam,
)

# shaft
shaft = self.api.cylinder_z(l=self.shaft_h, rad=self.shaft_diam/2 + tol)

Expand All @@ -116,32 +111,40 @@ def gen(self) -> Shape:
shaft <<= (0,0,self.shaft_h/2)
gear += shaft

"""
Usage: As a Module
worm(circ_pitch, d, l, [starts=], [left_handed=], [pressure_angle=], [backlash=], [clearance=]);
worm(mod=, d=, l=, [starts=], [left_handed=], [pressure_angle=], [backlash=], [clearance=]);
Usage: As a Function
vnf = worm(circ_pitch, d, l, [starts=], [left_handed=], [pressure_angle=], [backlash=], [clearance=]);
vnf = worm(mod=, d=, l=, [starts=], [left_handed=], [pressure_angle=], [backlash=], [clearance=]);
"""

## drive
if self.isCut:
drive = self.api.cylinder_z(self.drive_h+2*tol,
rad=self.worm_diam/2+self.drive_teeth_l+tol
)
else:

if True:
bworm = worm(circ_pitch=self.circ_pitch,
d=self.worm_diam,
starts=self.worm_starts,
l=self.drive_h,
pressure_angle=self.pressure_angle,
mod = self.modulus
)
else:
# bworm = enveloping_worm(circ_pitch=8, mate_teeth=45, d=30, _fn=72)
bworm = enveloping_worm(circ_pitch=self.circ_pitch,
mate_teeth=self.teeth,
d=self.worm_diam,
pressure_angle=self.pressure_angle)
# bworm = enveloping_worm(
# circ_pitch=self.circ_pitch,
# d=self.worm_diam,
# starts=self.worm_starts,
# l=self.drive_h,
# pressure_angle=self.pressure_angle,
# mod = self.modulus,
# mate_teeth = 0.5
# )


drive = self.api.genShape(
solid=worm(circ_pitch=self.worm_pitch,
d=self.worm_diam,
starts=self.worm_starts,
l=self.drive_h,
pressure_angle=self.pressure_angle,
mod = self.modulus
)
solid=bworm
)

# drive cylindrical extension
Expand All @@ -152,7 +155,7 @@ def gen(self) -> Shape:
drive += disk_low + disk_high

# drive extension
drive_ext = self.api.cylinder_z(l=self.drive_h+2*self.disk_h+2*20*tol + 2*2,
drive_ext = self.api.cylinder_z(l=self.drive_h+2*self.disk_h+2*20*tol + 2*2,
rad=self.hex_hole/2+2+2*tol
)
drive += drive_ext
Expand All @@ -169,7 +172,15 @@ def gen(self) -> Shape:
drive -= hex_cut.rotate_y(90)

# align drive with gear
drive = drive.rotate_x(90).mv((self.gear_diam+self.worm_diam)/2,0,0)
dist = worm_dist(circ_pitch=self.circ_pitch,
d=self.worm_diam,
starts=self.worm_starts,
teeth=self.teeth,
# [profile_shift],
pressure_angle=self.pressure_angle
)
# drive = drive.rotate_x(90).mv((self.gear_diam+self.worm_diam)/2,0,0)
drive = drive.rotate_x(90).mv(dist,0,0)

return drive + gear

Expand Down

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