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M3 dimensions

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This commit is contained in:
Christian Colglazier 2022-05-21 18:20:33 -04:00
parent 3a60c511eb
commit ad09e4c3a0
1 changed files with 15 additions and 13 deletions
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28
follow_focus.py
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@ -1,7 +1,7 @@
import cadquery as cq import cadquery as cq
from cq_gears import SpurGear from cq_gears import SpurGear
import copy, math import math
from shapely.geometry import LineString from shapely.geometry import LineString
from shapely.geometry import Point from shapely.geometry import Point
@ -17,6 +17,12 @@ offset=9
part_thinkness=20 part_thinkness=20
gear_thinkness=10 gear_thinkness=10
large_gear_diameter=8.5 large_gear_diameter=8.5
m3_tap=2.5
m3_head_diameter=6
m3_head_depth=3
m3_passthrough=3.5
#m_hole_diameter=6
#m_hole_depth=3
gap = stepper_motor_size * math.sin(math.radians(slant_degree)) / math.sin(math.radians(90-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))) width = math.sqrt(gap**2 + stepper_motor_size**2 - 2*gap*stepper_motor_size*math.cos(math.radians(90)))
@ -96,18 +102,16 @@ lid = lid.faces('>Z[1]').workplane().center(stepper_center[0], -stepper_center[1
lid = lid.faces('>Z[0]').workplane().circle(5/2).cutThruAll() lid = lid.faces('>Z[0]').workplane().circle(5/2).cutThruAll()
gear_gap=0.2 gear_gap=0.2
base = base.faces('<Z[1]').workplane().center(21,20.15).circle(26.5).cutBlind(-gear_thinkness-gear_gap).tag('test') base = base.faces('<Z[1]').workplane().center(21,20.15).circle(26.5).cutBlind(-gear_thinkness-gear_gap)
t=11/2 t=11/2
base = base.faces('<Z[2]').workplane().hLine(t, forConstruction=True).threePointArc((-t,-t/2),(0,t)).polarLine(t, -slant_degree).close().extrude(-lid_thicknesss+wall_width) base = base.faces('<Z[2]').workplane().hLine(t, forConstruction=True).threePointArc((-t,-t/2),(0,t)).polarLine(t, -slant_degree).close().extrude(-lid_thicknesss+wall_width)
gear_offset=0.5 gear_offset=0.5
base = base.faces('<Z[2]').workplane().circle(large_gear_diameter/2-gear_offset).extrude(gear_thinkness/2) base = base.faces('<Z[2]').workplane().circle(large_gear_diameter/2-gear_offset).extrude(gear_thinkness/2)
base = base.faces('<Z[2]').workplane().circle(2).cutBlind(-part_thinkness/2+wall_width) base = base.faces('<Z[2]').workplane().circle(m3_tap/2).cutBlind(-part_thinkness/2+wall_width)
# Threaded insert # Threaded insert
base = base.faces('<<Y[-1]').workplane().center(-5,0).circle(6.5/2).cutBlind(-t-mount_gap*2-6) base = base.faces('<<Y[-1]').workplane().center(-5,0).circle(6.5/2).cutBlind(-t-mount_gap*2-6)
base = base.faces('<<Y[-1]').workplane().circle(8.5/2).cutBlind(-t-mount_gap).tag('test') base = base.faces('<<Y[-1]').workplane().circle(8.5/2).cutBlind(-t-mount_gap)
# Fastener # Fastener
fastener_width = 11 fastener_width = 11
@ -123,15 +127,13 @@ fastener = fastener.faces('<<Y[-6]').workplane().circle(5/2).cutThruAll()
lid = lid.faces('>Z[0]').workplane().center(21,-20.15).hLine(t, forConstruction=True).threePointArc((-t,t/2),(0,-t)).polarLine(t, slant_degree).close().extrude(-lid_thicknesss+wall_width) lid = lid.faces('>Z[0]').workplane().center(21,-20.15).hLine(t, forConstruction=True).threePointArc((-t,t/2),(0,-t)).polarLine(t, slant_degree).close().extrude(-lid_thicknesss+wall_width)
lid = lid.faces('>Z[0]').workplane().circle(large_gear_diameter/2-gear_offset).extrude(gear_thinkness/2) lid = lid.faces('>Z[0]').workplane().circle(large_gear_diameter/2-gear_offset).extrude(gear_thinkness/2)
lid = lid.faces('>Z[0]').workplane().circle(2).cutThruAll() lid = lid.faces('>Z[0]').workplane().circle(2).cutThruAll()
m_hole_diameter=6 lid = lid.faces('<Z[0]').workplane().circle(m3_head_diameter/2).cutBlind(-m3_head_depth)
m_hole_depth=3
lid = lid.faces('<Z[0]').workplane().circle(m_hole_diameter/2).cutBlind(-m_hole_depth)
# Mount Hole # Lid Holes
lid = lid.faces('<Z[0]').workplane().center(-stepper_motor_size+wall_width,-stepper_motor_size+offset/2-loop_thickness).circle(3.5/2).cutThruAll() lid = lid.faces('<Z[0]').workplane().center(-stepper_motor_size+wall_width,-stepper_motor_size+offset/2-loop_thickness).circle(m3_passthrough/2).cutThruAll()
drill = lid.faces('<Z[0]').workplane().circle(2.5/2).extrude(-part_thinkness+wall_width, combine=False) drill = lid.faces('<Z[0]').workplane().circle(m3_tap/2).extrude(-part_thinkness+wall_width, combine=False)
base = base.cut(drill) base = base.cut(drill)
lid = lid.faces('<Z[0]').workplane().circle(m_hole_diameter/2).cutBlind(-m_hole_depth) lid = lid.faces('<Z[0]').workplane().circle(m3_head_diameter/2).cutBlind(-m3_head_depth)
# Gears # Gears
mod=0.8 mod=0.8