/
lalboard.py
executable file
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/
lalboard.py
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# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
This file contains the logic for generating all the various parts. This script itself can't be run directly, but it used
by the various part scripts in the "parts" directory.
"""
import inspect
import math
import os
import pathlib
from typing import Optional, Sequence, Tuple
import adsk.core
import adsk.fusion
from adsk.core import Matrix3D, Point3D, Vector3D, Plane
import fscad.fscad
from fscad.fscad import *
from fscad.fscad import Component
key_thickness = 1.8
post_width = 7.3
# noinspection PyMethodMayBeStatic
class Lalboard(MemoizableDesign):
def small_pin(self):
return Circle(.4, name="small_pin")
def tapered_box(self, bottom_x, bottom_y, top_x, top_y, height, name):
bottom_face = Rect(bottom_x, bottom_y, "tapered_box_bottom")
top_face = Rect(top_x, top_y, "tapered_box_top")
top_face.place(~top_face == ~bottom_face,
~top_face == ~bottom_face,
~top_face == height)
return Loft(bottom_face, top_face, name=name)
def horizontal_rotated_magnet_cutout(self, depth=1.8, name="magnet_cutout"):
result = self.tapered_box(1.45, 1.45, 1.7, 1.7, depth, name=name).rx(90).ry(45)
result.add_named_faces("front", result.top)
return result
def horizontal_magnet_cutout(self, depth=1.8, name="magnet_cutout"):
return self.tapered_box(1.45, 1.8, 1.7, 1.8, depth, name=name).rx(90)
def horizontal_tiny_magnet_cutout(self, depth=1.3, name="magnet_cutout"):
return self.tapered_box(.9, 1.2, 1.1, 1.2, depth, name=name).rx(90)
def vertical_magnet_cutout(self, depth=1.6, extra=0.0, name="magnet_cutout"):
return self.tapered_box(1.55+extra, 1.55+extra, 1.7+extra, 1.7+extra, depth, name)
def vertical_rotated_magnet_cutout(self, depth=1.6, name="magnet_cutout"):
result = self.tapered_box(1.7, 1.7, 1.8, 1.8, depth, name).rz(45)
result.add_named_faces("front", result.top)
return result
def deep_large_thin_magnet_cutout(self, name="magnet_cutout", depth=2.375, bottom_flare=.4):
"""The cutout for a magnet that is inserted deeper than the surface of the part.
This can be used in conjunction with a magnet sticking out a bit on the mating part. That magnet will insert
into the remaining part of the hole for this magnet. This holds the part down magnetically, and keeps it
from sliding around due to the mechanical constraint of the magnet inserted into the hole.
"""
# Add a flare to the bottom of the hole, to avoid glue from squeezing out above the magnet
lower_taper = self.tapered_box(
3.35 + bottom_flare, 3.35 + bottom_flare, 3.35, 3.35,
height=.8, name=name + "_taper")
base = Box(3.35, 3.35, depth - lower_taper.size().z, name=name + "_base")
base.place(
~base == ~lower_taper,
~base == ~lower_taper,
-base == +lower_taper)
return Union(lower_taper, base, name=name)
def shallow_large_thin_magnet_cutout(self, name="magnet_cutout", depth=1, bottom_flare=.4):
"""The cutout for a magnet that sticks out from the surface of the part.
This can be used in conjunction with a magnet that is embedded down a bit on the mating part. this magnet will
insert the remaining part of the hole for the mating magnet. This holds the part down magnetically, and keeps it
from sliding around due to the mechanical constraint of the magnet inserted into the hole.
"""
# Add a flare to the bottom of the hole, to avoid glue from squeezing out above the magnet
lower_taper = self.tapered_box(
3.35 + bottom_flare, 3.35 + bottom_flare, 3.35, 3.35,
height=.6, name=name + "_taper")
base = Box(3.35, 3.35, depth - lower_taper.size().z, name=name + "_base")
base.place(
~base == ~lower_taper,
~base == ~lower_taper,
-base == +lower_taper)
return Union(lower_taper, base, name=name)
def vertical_large_thin_magnet_cutout(self, name="magnet_cutout", depth=1.8, taper=.15):
upper_taper = self.tapered_box(3.35, 3.35, 3.35 + taper, 3.35 + taper, min(.7, depth), name=name + "_taper")
if depth > .7:
base = Box(3.35, 3.35, depth - upper_taper.size().z, name=name + "_base")
upper_taper.place(~upper_taper == ~base,
~upper_taper == ~base,
-upper_taper == +base)
return Union(base, upper_taper, name=name)
else:
return Union(upper_taper, name=name)
def vertical_large_thin_double_magnet_cutout(self, extra_depth=0.0, name="magnet_cutout"):
base = Box(3.1*2, 3.1, 1 + extra_depth, name=name + "_base")
taper = self.tapered_box(3.1*2, 3.1, 3.25*2, 3.2, .7, name=name + "_taper")
taper.place(~taper == ~base,
~taper == ~base,
-taper == +base)
return Union(base, taper, name=name)
def make_bottom_entry_led_cavity(self, name="led_cavity"):
lens_height = 4.5
lens_radius = .75
body = Box(1.8, 5, 5.8, "body")
lens_hole = Circle(lens_radius, name="lens_hole")
lens_hole.ry(90).place(-lens_hole == +body, ~lens_hole == ~body, ~lens_hole == lens_height)
lens_slot = Box(lens_radius + .05 - .275, lens_radius * 2 + .1, lens_hole.max().z - body.min().z, "lens_slot")
lens_slot.place(-lens_slot == +body, ~lens_slot == ~body, +lens_slot == +lens_hole)
lens_hole.place(~lens_hole == +lens_slot)
cavity = Union(body, lens_slot)
cavity = SplitFace(cavity, lens_hole, name=name)
leg = self.small_pin()
leg.place(~leg == ~body, (~leg == ~body) + 2.54/2, +leg == -body)
leg2 = leg.copy().ty(-2.54)
legs = Union(leg, leg2, name="legs")
cavity = SplitFace(cavity, legs, name=name)
cavity.add_named_faces("legs", *cavity.find_faces((leg, leg2)))
cavity.add_named_faces("lens_hole", *cavity.find_faces(lens_hole))
cavity.add_named_faces("bottom", *cavity.find_faces(body.bottom))
cavity.add_named_point("lens_center",
(cavity.mid().x, cavity.mid().y, lens_hole.bodies[0].faces[0].brep.centroid.z))
return cavity
def hole_array(self, radius, pitch, count):
hole = Circle(radius)
holes = []
for i in range(0, count):
holes.append(hole.copy().tx(pitch * i))
return Union(*holes)
def retaining_ridge_design(self, pressed_key_angle, length):
def rotated(vector, angle):
vector = vector.copy()
matrix = Matrix3D.create()
matrix.setToRotation(math.radians(angle), Vector3D.create(0, 0, 1), Point3D.create(0, 0, 0))
vector.transformBy(matrix)
return vector
def vectorTo(point, vector, length):
vector = vector.copy()
vector.scaleBy(length)
point = point.copy()
point.translateBy(vector)
return point
# how much it sticks out
retaining_ridge_thickness = .3
retaining_ridge_lower_angle = 45
# the length of the "face" of the ridge
retaining_ridge_width = .3
origin = Point3D.create(0, 0, 0)
up = Vector3D.create(0, 1, 0)
right = rotated(up, -90)
down = rotated(right, -90)
left = rotated(down, -90)
lines = []
lines.append(adsk.core.InfiniteLine3D.create(
origin,
rotated(down, -pressed_key_angle)))
lines.append(adsk.core.InfiniteLine3D.create(
origin,
left))
point = vectorTo(origin, rotated(left, -pressed_key_angle), retaining_ridge_thickness)
lines.append(adsk.core.InfiniteLine3D.create(
point,
rotated(down, -pressed_key_angle)))
point = lines[1].intersectWithCurve(lines[2])[0]
lines.append(adsk.core.InfiniteLine3D.create(
vectorTo(point, rotated(down, -pressed_key_angle), retaining_ridge_width),
rotated(down, retaining_ridge_lower_angle)))
points = []
for i in range(-1, 3):
points.append(lines[i].intersectWithCurve(lines[i+1])[0])
retaining_ridge = Polygon(*points, name="retaining_ridge_profile")
retaining_ridge = Extrude(retaining_ridge, length)
retaining_ridge.rz(-90)
retaining_ridge.ry(-90)
return retaining_ridge
@MemoizableDesign.MemoizeComponent
def vertical_key_base(self, extra_height=0.0, pressed_key_angle=12.5, extra_optical_width=0.55,
fillet_back_keywell_corners=False, fillet_front_keywell_corners=False, name=None):
post_hole_width = post_width + .3
key_well = Box(
post_hole_width + .525*2,
4.75,
8.0 + extra_height, "key_well")
filleted_edges = []
if fillet_back_keywell_corners:
filleted_edges.extend(key_well.shared_edges(key_well.back, [key_well.left, key_well.right]))
if fillet_front_keywell_corners:
filleted_edges.extend(key_well.shared_edges(key_well.front, [key_well.left, key_well.right]))
if filleted_edges:
key_well = Fillet(filleted_edges, .8)
pt_cavity = self.make_bottom_entry_led_cavity(name="pt_cavity")
led_cavity = self.make_bottom_entry_led_cavity(name="led_cavity")
upper_base = Box(
14.9,
6.55,
led_cavity.find_children("body")[0].size().z + .4,
name="upper_base")
upper_base.place(
~upper_base == ~key_well,
-upper_base == -key_well,
+upper_base == +key_well)
pt_cavity.place((+pt_cavity == -key_well) - extra_optical_width/2,
(-pt_cavity == -upper_base) + .525,
(+pt_cavity == +upper_base) - .4)
led_cavity.rz(180)
led_cavity.place((-led_cavity == +key_well) + extra_optical_width/2,
(-led_cavity == -upper_base) + .525,
+led_cavity == +pt_cavity)
key_pivot = Cylinder(post_hole_width, 1, name="key_pivot").ry(90)
key_pivot.place(~key_pivot == ~key_well,
(+key_pivot == +upper_base) - 2.6,
(~key_pivot == -key_well) + 1.4)
pivot_vee = Box(
key_pivot.size().x,
key_pivot.radius,
key_pivot.radius)
pivot_vee.rx(45)
pivot_vee.place(
~pivot_vee == ~key_pivot,
~pivot_vee == ~key_pivot,
+pivot_vee == ~key_pivot)
pivot_vee_flat_bottom = pivot_vee.bounding_box.make_box()
pivot_vee_flat_bottom.place(
~pivot_vee_flat_bottom == ~pivot_vee,
~pivot_vee_flat_bottom == ~pivot_vee,
+pivot_vee_flat_bottom == -key_pivot)
pivot_vee = Difference(pivot_vee, pivot_vee_flat_bottom)
straight_key = Box(post_hole_width, key_pivot.size().y, key_well.size().z * 2, "straight_key")
straight_key.place(
~straight_key == ~key_pivot,
~straight_key == ~key_pivot,
-straight_key == ~key_pivot)
sloped_key = Box(post_hole_width, key_pivot.size().y, key_well.size().z * 2, "sloped_key")
sloped_key.place(~sloped_key == ~key_pivot,
~sloped_key == ~key_pivot,
-sloped_key == ~key_pivot)
sloped_key = Union(sloped_key, key_pivot).rx(pressed_key_angle, center=(0, key_pivot.mid().y, key_pivot.mid().z))
retaining_ridge = self.retaining_ridge_design(pressed_key_angle, post_hole_width)
sloped_key_front = sloped_key.find_children("sloped_key")[0].front
retaining_ridge.place(~retaining_ridge == ~key_well,
(+retaining_ridge == -key_pivot) - .05,
+retaining_ridge == +upper_base)
retaining_ridge.align_to(sloped_key_front, Vector3D.create(0, 0, -1))
sloped_key = Difference(sloped_key, retaining_ridge)
result = Union(key_well, upper_base)
result = Difference(result, sloped_key, straight_key)
magnet_cutout = self.horizontal_rotated_magnet_cutout()
magnet_cutout.place(~magnet_cutout == ~key_well,
-magnet_cutout == +straight_key,
(+magnet_cutout == +key_well) - .4)
extruded_led_cavity = ExtrudeTo(led_cavity.named_faces("lens_hole"), result.copy(False))
extruded_pt_cavity = ExtrudeTo(pt_cavity.named_faces("lens_hole"), result.copy(False))
negatives = Union(
extruded_pt_cavity, extruded_led_cavity, magnet_cutout, straight_key, sloped_key, pivot_vee, name="negatives")
result = Difference(result, negatives, name=name or "vertical_key_base")
return result
@MemoizableDesign.MemoizeComponent
def cluster_design(self):
"""
The design for the individual finger clusters, including front and back extensions.
"""
base_cluster = self.base_cluster_design()
base_cluster, front = self.cluster_front(base_cluster)
back = self.cluster_back(base_cluster)
_, connector_legs_cutout = self.cluster_pcb(base_cluster, front, back)
return Difference(
Union(base_cluster, front, back),
connector_legs_cutout,
name="cluster")
@MemoizableDesign.MemoizeComponent
def cluster_silhouette(self):
cluster = self.cluster_design()
cluster_back = cluster.find_children("cluster_back")[0]
silhouette = Silhouette(
cluster,
adsk.core.Plane.create(Point3D.create(0, 0, 0), Vector3D.create(0, 0, 1)),
name="cluster_silhouette")
silhouette.place(z=~silhouette == -cluster_back)
# The silhouette seems to have some extraneous vertices, which cause the bounding box to be larger than
# expected. This removes the extraneous stuff, leaving on the single face geometry
return silhouette.faces[0].make_component(name="cluster_silhouette")
def base_cluster_design(self):
"""
The design of the main part of a cluster, not including the front or back extensions.
"""
temp_key_base = self.vertical_key_base()
temp_key_base_upper = temp_key_base.find_children("upper_base")[0]
base = Box(24.9, 24.9, temp_key_base_upper.size().z, "base")
south_base = self.vertical_key_base(fillet_back_keywell_corners=True, name="south_base")
south_base.scale(-1, 1, 1)
south_base.place(~south_base == ~base,
-south_base == -base,
+south_base == +base)
west_base = self.vertical_key_base(fillet_back_keywell_corners=True, name="west_base")
west_base.rz(-90)
west_base.place(-west_base == -base,
~west_base == ~base,
+west_base == +base)
north_base = self.vertical_key_base(
extra_optical_width=2.5, fillet_back_keywell_corners=True, fillet_front_keywell_corners=True,
name="north_base")
north_base.scale(-1, 1, 1).rz(180)
north_base.place(
~north_base == ~base,
+north_base == +base,
+north_base == +base)
east_base = self.vertical_key_base(fillet_back_keywell_corners=True, name="east_base")
east_base.rz(90)
east_base.place(+east_base == +base,
~east_base == ~base,
+east_base == +base)
key_bases = (
south_base,
west_base,
north_base,
east_base)
key_base_negatives = (key_base.find_children("negatives")[0] for key_base in key_bases)
combined_cluster = Union(base, *key_bases, name="combined_cluster")
center_key_left_hole = Box(4, 4, combined_cluster.size().z, name="center_key_left_hole")
center_key_left_hole.place(
(~center_key_left_hole == ~base) - 4.1,
~center_key_left_hole == ~base,
-center_key_left_hole == -base)
center_key_right_hole = center_key_left_hole.copy(name="center_key_right_hole")
center_key_right_hole.place(
(~center_key_left_hole == ~base) + 4.1)
center_key_holes = Group([center_key_left_hole, center_key_right_hole], name="center_key_holes")
center_recess = Box(
center_key_right_hole.max().x - center_key_left_hole.min().x,
center_key_right_hole.size().y,
3)
center_recess.place(
~center_recess == ~center_key_holes,
~center_recess == ~center_key_holes,
+center_recess == +base)
central_magnet_cutout = self.vertical_magnet_cutout(name="central_magnet_cutout")
central_magnet_cutout.place(~central_magnet_cutout == ~center_key_holes,
~central_magnet_cutout == ~center_key_holes,
-central_magnet_cutout == -base)
west_cavity = west_base.find_children("negatives")[0]
west_pt_cavity = west_cavity.find_children("pt_cavity")[0]
east_cavity = east_base.find_children("negatives")[0]
east_led_cavity = east_cavity.find_children("led_cavity")[0]
central_led_cavity = self.make_bottom_entry_led_cavity(name="led_cavity")
central_led_cavity.rz(90)
central_led_cavity.place(~central_led_cavity == ~center_key_holes,
(+central_led_cavity == -center_key_holes) - 1.5,
+central_led_cavity == +east_led_cavity)
central_pt_cavity = self.make_bottom_entry_led_cavity(name="pt_cavity")
central_pt_cavity.rz(270)
central_pt_cavity.place(~central_pt_cavity == ~center_key_holes,
(-central_pt_cavity == +center_key_holes) + 1.5,
+central_pt_cavity == +west_pt_cavity)
extruded_led_cavity = ExtrudeTo(central_led_cavity.named_faces("lens_hole"), center_recess.copy(False))
extruded_pt_cavity = ExtrudeTo(central_pt_cavity.named_faces("lens_hole"), center_recess.copy(False))
result = Difference(combined_cluster, *key_base_negatives, center_key_holes, central_magnet_cutout,
center_recess, extruded_led_cavity, extruded_pt_cavity)
result.add_named_point("lower_left_corner", [west_base.min().x, west_base.min().y, 0])
result.add_named_point("lower_right_corner", [east_base.max().x, east_base.min().y, 0])
return result
def cluster_pcb(self, cluster, front, back):
hole_size = .35
full_cluster = Union(cluster, front, back).copy(copy_children=False)
pcb_plane = Rect(1, 1, 1)
pcb_plane.place(
~pcb_plane == ~cluster,
~pcb_plane == ~cluster,
+pcb_plane == -back)
center_holes: Component = cluster.find_children("center_key_holes")[0]
pcb_silhouette = Silhouette(full_cluster, pcb_plane.get_plane())
bottom_finder = full_cluster.bounding_box.make_box()
bottom_finder.place(
~bottom_finder == ~full_cluster,
~bottom_finder == ~full_cluster,
+bottom_finder == -full_cluster)
key_wells = Extrude(
Union(*[face.make_component() for face in full_cluster.find_faces(bottom_finder)]),
-full_cluster.size().z)
front_edge_finder = full_cluster.bounding_box.make_box()
front_edge_finder.place(
~front_edge_finder == ~back,
+front_edge_finder == -key_wells,
+front_edge_finder == -front)
front_key_well_face = full_cluster.find_faces(front_edge_finder.back)[0]
front_cut_out = cluster.bounding_box.make_box()
front_cut_out.name = "front_cut_out"
front_cut_out.place(
~front_cut_out == ~cluster,
+front_cut_out == ~front_key_well_face,
~front_cut_out == ~pcb_silhouette)
back_trim_tool = full_cluster.bounding_box.make_box()
back_trim_tool.place(
~back_trim_tool == ~full_cluster,
(-back_trim_tool == -back) + 5,
~back_trim_tool == ~pcb_silhouette)
center_rectangle = Box(center_holes.size().x + .4, 7, 1)
center_rectangle = Fillet(
center_rectangle.shared_edges([center_rectangle.front, center_rectangle.back],
[center_rectangle.left, center_rectangle.right]),
1.6)
center_rectangle.place(
~center_rectangle == ~center_holes,
~center_rectangle == ~center_holes,
-center_rectangle == ~pcb_silhouette)
pcb_back_box = Box(
8,
back.max().y - back_trim_tool.min().y,
1,
name="pcb_back_box")
pcb_back_box.place(
~pcb_back_box == ~back,
+pcb_back_box == +back,
-pcb_back_box == ~pcb_silhouette)
pcb_back_connection = full_cluster.bounding_box.make_box()
pcb_back_connection.place(
~pcb_back_connection == ~full_cluster,
+pcb_back_connection == -pcb_back_box,
-pcb_back_connection == -pcb_back_box)
pcb_back_intermediate = Union(pcb_back_box, pcb_back_connection)
filleted_pcb_back = Fillet(
pcb_back_intermediate.shared_edges(
pcb_back_intermediate.find_faces([pcb_back_box.left, pcb_back_box.right]),
pcb_back_intermediate.find_faces(pcb_back_connection.back)),
.8)
pcb_back = Difference(
filleted_pcb_back.find_faces(pcb_back_box.bottom)[0].make_component(name="pcb_back"),
pcb_back_connection)
# we fill in the center holes here, and then remove the center rectangle after doing the offset
# to avoid a weird glitch where the offset at the 2 ends doesn't meet up with the
# filleted corners
pcb_silhouette = Union(
Difference(pcb_silhouette, key_wells, front_cut_out, back_trim_tool),
Silhouette(center_rectangle, pcb_silhouette.get_plane()),
pcb_back)
# We're assuming that the OffsetEdges operations won't change the number or ordering of loops
for i in range(len(pcb_silhouette.faces[0].loops)):
loop = pcb_silhouette.faces[0].loops[i]
offset_amount = -.2
pcb_silhouette = OffsetEdges(loop.face,
loop.edges,
offset_amount)
connector_holes = self.hole_array(hole_size, 1.5, 7)
connector_holes.place((~connector_holes == ~pcb_silhouette),
(~connector_holes == -back_trim_tool) - 1.6,
~connector_holes == ~pcb_silhouette)
# A cutout behind the pcb in the cluster, for the soldered connector legs.
connector_legs_cutout = Box(
connector_holes.size().x + 2,
connector_holes.size().y + 2,
2.5,
name="connector_legs_cutout")
connector_legs_cutout.place(
~connector_legs_cutout == ~connector_holes,
~connector_legs_cutout == ~connector_holes,
-connector_legs_cutout == ~connector_holes)
legs = Union(*cluster.find_children("legs"))
legs.place(
z=~legs == ~pcb_silhouette)
screw_hole = back.find_children("screw_hole")[0]
pcb_silhouette = Difference(pcb_silhouette, center_rectangle, connector_holes, legs, screw_hole)
extruded_pcb = Extrude(pcb_silhouette, -1.6, name="pcb")
extruded_pcb.add_named_faces("top", *extruded_pcb.start_faces)
extruded_pcb.add_named_faces("bottom", *extruded_pcb.end_faces)
return extruded_pcb, connector_legs_cutout
def ball_magnet(self):
return Sphere(2.5, "ball_magnet")
def large_magnet(self):
return Box(3.175, 3.175, 1.5875, name="large_magnet")
def underside_magnetic_attachment(self, base_height, name=None):
"""This is the design for the magnetic attachments on the normal and thumb clusters.
It consists of a rectangular magnet partially sticking out of the underside of the cluster. The other side
of the attachment will have a rectangular hole that fits over the part of the magnet sticking out, along with
another magnet to hold them together.
For example, for a ball magnet mount, there could be a separate part with the rectangular hole on one side and a
spherical divot on the other side, to interface between the rectangular magnet and a spherical magnet, holding
both in place relative to each other.
"""
# A bit shallower than the thickness of the magnet, so the magnet sticks out a bit. The mating part will have
# a hole that fits over the extending part of the magnet, to keep it from sliding.
magnet_hole = self.shallow_large_thin_magnet_cutout()
magnet_hole.rx(180)
base = Cylinder(base_height, 3.5)
magnet_hole.place(
~magnet_hole == ~base,
~magnet_hole == ~base,
-magnet_hole == -base)
negatives = Union(magnet_hole, name="negatives")
return Difference(base, negatives, name=name or "attachment")
def cluster_front(self, cluster: Component):
front_base = cluster.find_children("south_base")[0]
upper_base = front_base.find_children("upper_base")[0]
left_point = cluster.named_point("lower_left_corner").point
right_point = cluster.named_point("lower_right_corner").point
attachment = self.underside_magnetic_attachment(upper_base.size().z)
attachment.place(~attachment == ~cluster,
(+attachment == -cluster),
+attachment == +front_base)
front_nose = Box(
attachment.size().x,
(cluster.min().y - attachment.min().y),
upper_base.size().z)
front_nose.place(
~front_nose == ~cluster,
+front_nose == -cluster,
+front_nose == +cluster)
front_left_point = front_nose.min()
front_right_point = Point3D.create(
front_nose.max().x,
front_nose.min().y,
front_nose.min().z)
front_base = Extrude(Polygon(front_left_point, front_right_point, right_point, left_point), upper_base.size().z)
front_left_cut_corner = Point3D.create(
cluster.min().x,
front_base.min().y,
front_base.min().z)
front_right_cut_corner = Point3D.create(
cluster.max().x,
front_base.min().y,
front_base.min().z)
left_cut = Extrude(
Polygon(front_left_cut_corner, front_left_point, left_point), front_base.size().z, name="left_cut")
right_cut = Extrude(
Polygon(right_point, front_right_point, front_right_cut_corner), front_base.size().z, name="right_cut")
cluster = Difference(
cluster, left_cut, right_cut)
front = Difference(
Union(front_base, attachment), cluster.bounding_box.make_box(),
*attachment.find_children("negatives"), name="cluster_front")
fillet_edges = []
for edge in front.find_faces(front_nose.front)[0].edges:
if edge.bounding_box.size().x == 0 and edge.bounding_box.size().y == 0:
fillet_edges.append(edge)
front = Fillet(fillet_edges, attachment.size().x/2, name="cluster_front")
return cluster, front
def cluster_back(self, cluster: Component):
upper_base = cluster.find_children("upper_base")[0]
attachment = self.underside_magnetic_attachment(upper_base.size().z)
base = Box(cluster.size().x, attachment.size().y + 5, upper_base.size().z)
base.place(~base == ~cluster,
-base == +cluster,
+base == +cluster)
attachment.place(-attachment == -cluster,
+attachment == +base,
+attachment == +base)
other_attachment = attachment.copy()
other_attachment.place(+attachment == +cluster)
screw_hole = Cylinder(base.size().z * 10, 3.1/2, name="screw_hole")
screw_hole.place(
~screw_hole == ~base,
~screw_hole == ~attachment,
(+screw_hole == +base) - .4)
nut_cutout = Box(
5.8,
cluster.size().y * 10,
2.8)
nut_cutout.place(
~nut_cutout == ~screw_hole,
(-nut_cutout == ~screw_hole) - nut_cutout.size().x / 2,
(+nut_cutout == +base) - 1.8)
# This will give a single .2 layer on "top" (when printed upside down) of the nut cavity, so that it can be
# bridged over. This will fill in the screw hole, but a single layer can be cleaned out/pushed through easily.
nut_cutout_ceiling = Box(
nut_cutout.size().x,
nut_cutout.size().x,
.2)
nut_cutout_ceiling.place(
~nut_cutout_ceiling == ~nut_cutout,
-nut_cutout_ceiling == -nut_cutout,
+nut_cutout_ceiling == -nut_cutout)
base = Fillet(base.shared_edges([base.back], [base.left, base.right]), attachment.size().x/2)
return Union(
Difference(Union(base, attachment, other_attachment),
attachment.find_children("negatives")[0],
other_attachment.find_children("negatives")[0],
screw_hole,
nut_cutout),
nut_cutout_ceiling,
name="cluster_back")
def cluster_front_mount_clip(self, front, extra_height=0.0, name="cluster_front_mount_clip"):
attachment = front.find_children("attachment")[0]
front_magnet_cutout = front.find_children("magnet_cutout")[0]
cutout = self.deep_large_thin_magnet_cutout()
cutout.rx(180)
cutout.place(
~cutout == ~front_magnet_cutout,
~cutout == ~front_magnet_cutout,
+cutout == -front)
front_attachment = Box(attachment.size().x, attachment.size().y, cutout.size().z + 1)
front_attachment.place(
~front_attachment == ~attachment,
~front_attachment == ~attachment,
+front_attachment == -attachment)
front_riser = Box(
front_attachment.size().x,
1.5,
front.max().z - front_attachment.min().z + extra_height)
front_riser.place(
~front_riser == ~front_attachment,
+front_riser == -front_attachment,
-front_riser == -front_attachment)
attachment = self.underside_magnetic_attachment(1.4)
attachment.place(
~attachment == ~front_attachment,
+attachment == -front_riser,
+attachment == +front_riser)
attachment_top_finder = attachment.bounding_box.make_box()
attachment_top_finder.place(
~attachment_top_finder == ~attachment,
~attachment_top_finder == ~attachment,
-attachment_top_finder == +attachment)
attachment_attachment = Extrude(
Hull(
Union(
attachment.find_faces(attachment_top_finder)[0].make_component(),
front_riser.top.make_component())),
-attachment.size().z)
return Difference(
Union(front_attachment, front_riser, attachment, attachment_attachment),
cutout, *attachment.find_children("negatives"),
name=name)
def cluster_front_mount_clip_tall(self, front, name="cluster_front_mount_clip_tall"):
return self.cluster_front_mount_clip(front, extra_height=2.6, name=name)
@MemoizableDesign.MemoizeComponent
def center_key(self):
key_radius = 7.5
key_rim_height = .5
key_thickness = 2
key_travel = 1.7
post_length = 6.2 + key_travel
fillet_radius = .5
key = Cylinder(key_thickness, key_radius, name="key")
key_rim = Cylinder(key_rim_height, key_radius, name="key_rim")
key_rim.place(~key_rim == ~key,
~key_rim == ~key,
-key_rim == +key)
key_rim_hollow = Cylinder(key_rim_height, key_radius - 1)
key_rim_hollow.place(~key_rim_hollow == ~key,
~key_rim_hollow == ~key,
-key_rim_hollow == -key_rim)
key_rim = Difference(key_rim, key_rim_hollow)
left_post = Box(3.5, 3.5, post_length + key_rim_height, name="left_post")
left_post = Fillet(
left_post.shared_edges([left_post.front, left_post.back], [left_post.left, left_post.right]),
.8)
left_post.place(
(~left_post == ~key) - 4.1,
~left_post == ~key,
-left_post == +key)
left_post_magnet = self.vertical_magnet_cutout(extra=.2)
left_post_magnet.place(
~left_post_magnet == ~left_post,
~left_post_magnet == ~left_post,
+left_post_magnet == +left_post)
right_post = left_post.copy(name="right_post")
right_post.place(
(~right_post == ~key) + 4.1,
~right_post == ~key,
-right_post == +key)
right_post_magnet = left_post_magnet.copy()
right_post_magnet.place(
~right_post_magnet == ~right_post,
~right_post_magnet == ~right_post,
+right_post_magnet == +right_post)
interruptor_post = Box(
right_post.mid().x - left_post.mid().x,
left_post.size().y,
.8 + key_travel + key_rim_height, name="interruptor_post")
interruptor_post.place(
~interruptor_post == ~key,
~interruptor_post == ~key,
-interruptor_post == +key)
result = Difference(Union(key, key_rim, interruptor_post, left_post, right_post),
left_post_magnet, right_post_magnet, name="center_key")
return result
def vertical_key_post(self, post_length, groove_height, groove_width, magnet_height):
post = Box(post_width, post_length - key_thickness/2, key_thickness, name="post")
pivot = Cylinder(post_width, key_thickness/2, name="pivot")
pivot.ry(90)
pivot.place(
~pivot == ~post,
~pivot == -post,
~pivot == ~post)
magnet = self.vertical_rotated_magnet_cutout()
magnet.place(~magnet == ~post,
(~magnet == -pivot) + magnet_height + key_thickness/2,
+magnet == +post)
groove_depth = .7
groove = Box(post.size().x, groove_width, groove_depth, name="groove")
groove.place(~groove == ~post,
(-groove == -pivot) + groove_height + key_thickness/2,
-groove == -post)
end_fillet_tool_negative = Union(post.copy(), pivot.copy()).bounding_box.make_box()
end_fillet_tool_negative = Fillet(
end_fillet_tool_negative.shared_edges(
end_fillet_tool_negative.front,
[end_fillet_tool_negative.left, end_fillet_tool_negative.right]),
1.5)
end_fillet_tool_positive = Union(post.copy(), pivot.copy()).bounding_box.make_box()
end_fillet_tool = Difference(end_fillet_tool_positive, end_fillet_tool_negative)
assembly = Difference(Union(post, pivot), magnet, groove, end_fillet_tool)
assembly = Fillet(assembly.shared_edges(
post.top,
[post.left, post.right]), .5)
return assembly
def vertical_key(self, post_length, key_width, key_height, key_angle, key_protrusion, key_displacement, groove_height,
groove_width, magnet_height, name):
post = self.vertical_key_post(post_length, groove_height, groove_width, magnet_height)
key_base = Box(13, key_height, 10, name="key_base")
key_base.place(~key_base == ~post,
-key_base == +post,
-key_base == -post)
key_dish = Cylinder(key_base.size().y * 2, 15).rx(90)
key_dish.place(~key_dish == ~post,
-key_dish == -key_base,
-key_dish == +post)
key_dish.rx(key_angle, center=key_dish.min())
dished_key = Difference(key_base, key_dish, name="dished_key")
dished_key = Fillet(
dished_key.shared_edges([key_dish.side, key_base.back],
[key_base.left, key_base.right, key_base.back]), 1, False)
dished_key = Scale(dished_key, sx=key_width/13, center=dished_key.mid(), name="dished_key")
if key_displacement:
dished_key.ty(key_displacement)
if key_protrusion:
riser = Box(post_width, post_width, key_protrusion, name="riser")
riser.place(~riser == ~post, -riser == +post, -riser == -post)
dished_key.place(z=-dished_key == +riser)
return Union(post, dished_key, riser, name=name)
return Union(post, dished_key, name=name)
def side_key(self, key_height, key_angle, name):
return self.vertical_key(
post_length=10,
key_width=13,
key_height=key_height,
key_angle=key_angle,
key_protrusion=False,
key_displacement=False,
groove_height=1.353,
groove_width=.75,
magnet_height=5.4,
name=name)
@MemoizableDesign.MemoizeComponent
def cluster_key_short(self, name="cluster_key_short"):
return self.side_key(5, 0, name)
@MemoizableDesign.MemoizeComponent
def cluster_key_tall(self, name="cluster_key_tall"):
return self.side_key(11, 10, name)
@MemoizableDesign.MemoizeComponent
def thumb_side_key(self, key_width, key_height, groove_height, key_displacement: float = -3, name="thumb_side_key"):
return self.vertical_key(
post_length=11.5,
key_width=key_width,
key_height=key_height,
key_angle=0,
key_protrusion=6.5,
key_displacement=key_displacement,
groove_height=groove_height,
groove_width=.6,
magnet_height=8.748,
name=name)
@MemoizableDesign.MemoizeComponent
def inner_thumb_key(self):
return self.vertical_key(
post_length=12,
key_width=25,
key_height=13.5,
key_angle=0,
key_protrusion=2.5,
key_displacement=0,
groove_height=2.68,
groove_width=.6,
magnet_height=8.748,
name="inner_thumb_key")
@MemoizableDesign.MemoizeComponent
def outer_upper_thumb_key(self):
return self.vertical_key(
post_length=12,
key_width=20,
key_height=14,
key_angle=0,
key_protrusion=4,
key_displacement=0,
groove_height=2.68,
groove_width=.6,
magnet_height=8.748,
name="outer_upper_thumb_key")
@MemoizableDesign.MemoizeComponent
def outer_lower_thumb_key(self):
return self.vertical_key(
post_length=12,
key_width=20,
key_height=18,
key_angle=0,
key_protrusion=4,
key_displacement=0,
groove_height=4.546,
groove_width=.6,
magnet_height=8.748,
name="outer_lower_thumb_key")
@MemoizableDesign.MemoizeComponent