microtherion/ill-tempered-seabass
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Automatically adjust padding; make plug hexagonal

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This commit is contained in:
Matthias Neeracher 2022-02-27 02:40:53 +01:00
parent 9fa39a7a34
commit cbc847ea42
1 changed files with 39 additions and 33 deletions
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72
battery-case-generator.py
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@ -21,6 +21,7 @@ parser.add_argument('--thickness', default=3.0, type=float, help='Thickness of m
parser.add_argument('--lid', default=0.2, type=float, help='How much extra play to give the lid') parser.add_argument('--lid', default=0.2, type=float, help='How much extra play to give the lid')
parser.add_argument('--tooth', default=0.8, type=float, help='How much to round the edges of the teeth') parser.add_argument('--tooth', default=0.8, type=float, help='How much to round the edges of the teeth')
parser.add_argument('--flex-granularity', default=1.8, type=float, help='How much space to give a pair of flex lines') parser.add_argument('--flex-granularity', default=1.8, type=float, help='How much space to give a pair of flex lines')
parser.add_argument('--plug-play', default=0.3, type=float, help='How much smaller to make the plug than the hole')
parser.add_argument('--verbose', action='store_true', help='Print computed parameter values') parser.add_argument('--verbose', action='store_true', help='Print computed parameter values')
args = parser.parse_args() args = parser.parse_args()
assert (args.dimension % 2) == 1 assert (args.dimension % 2) == 1
@ -41,28 +42,36 @@ else:
args.hole = float(args.hole) args.hole = float(args.hole)
assert(args.height != None) assert(args.height != None)
args.kerf2 = args.kerf/2 SUITABLE = False
args.grid = args.hole+args.padding while not SUITABLE:
args.radius = args.hole/2 args.kerf2 = args.kerf/2
args.corner = args.corner_length*args.thickness args.grid = args.hole+args.padding
args.corner_s = args.corner*args.stretch args.radius = args.hole/2
args.corner_radius = 3*args.corner_s/math.pi args.corner = args.corner_length*args.thickness
args.plug_radius = args.corner_radius-args.thickness args.corner_s = args.corner*args.stretch
args.corner_inset = args.corner_s*math.sqrt(3)/math.pi args.corner_radius = 3*args.corner_s/math.pi
args.plug_inset = args.plug_radius/math.sqrt(3) args.plug_radius = args.corner_radius-args.thickness
args.interior_edge = args.grid*args.dimension*0.5+args.outside_padding args.corner_inset = args.corner_s*math.sqrt(3)/math.pi
args.plug_edge = args.interior_edge-args.thickness args.plug_inset = args.plug_radius/math.sqrt(3)
args.disc_radius = 0.45*(math.sqrt(3)-1)*args.plug_edge+args.plug_inset args.interior_edge = args.grid*args.dimension*0.5+args.outside_padding
args.exterior_edge = args.interior_edge+2.0*args.thickness args.opening_edge = args.interior_edge-args.thickness
args.interior_leg = (args.interior_edge-args.horizontal_finger-args.kerf)/2-args.corner_inset args.plug_edge = args.opening_edge-args.plug_play
finger_length = args.interior_edge-2.0*args.corner_inset args.disc_radius = 0.45*(math.sqrt(3)-1)*args.plug_edge+args.plug_inset
args.n_hor_fingers = max(int(finger_length/args.horizontal_finger/2), 1) args.exterior_edge = args.interior_edge+2.0*args.thickness
args.exterior_leg = (finger_length-(2*args.n_hor_fingers-1)*args.horizontal_finger+args.kerf)/2 args.interior_leg = (args.interior_edge-args.horizontal_finger-args.kerf)/2-args.corner_inset
args.wall_leg = (args.interior_edge-args.corner-(2*args.n_hor_fingers-1)*args.horizontal_finger+args.kerf)/2 finger_length = args.interior_edge-2.0*args.corner_inset
args.exterior_slot = (args.interior_edge-args.horizontal_finger+args.kerf)/2 args.n_hor_fingers = max(int(finger_length/args.horizontal_finger/2), 1)
args.n_ver_fingers = int((args.height+args.extra_height)/args.vertical_finger) args.exterior_leg = (finger_length-(2*args.n_hor_fingers-1)*args.horizontal_finger+args.kerf)/2
top_slot = args.extra_height+args.thickness+0.5*args.height args.wall_leg = (args.interior_edge-args.corner-(2*args.n_hor_fingers-1)*args.horizontal_finger+args.kerf)/2
args.slots = [top_slot, top_slot+10.0] args.exterior_slot = (args.interior_edge-args.horizontal_finger+args.kerf)/2
args.n_ver_fingers = int((args.height+args.extra_height)/args.vertical_finger)
top_slot = args.extra_height+args.thickness+0.5*args.height
args.slots = [top_slot, top_slot+10.0]
if args.exterior_leg > 2:
SUITABLE=True
else:
args.outside_padding += .5
args.padding += .2 # Try again with more padding
if args.verbose: if args.verbose:
print(args, file=sys.stderr) print(args, file=sys.stderr)
@ -104,7 +113,9 @@ def draw_plane(cx, cy, layer):
global HOLES, SHAPES, MARKS global HOLES, SHAPES, MARKS
if layer=='interior': if layer=='interior':
edge = args.interior_edge edge = args.interior_edge
elif layer=='plug' or layer=='plug_mark' or layer=='opening': elif layer=='opening':
edge = args.opening_edge
elif layer=='plug' or layer=='plug_mark':
edge = args.plug_edge edge = args.plug_edge
else: else:
edge = args.exterior_edge edge = args.exterior_edge
@ -131,19 +142,14 @@ def draw_plane(cx, cy, layer):
turtle.forward(edge-2.0*args.corner_inset) turtle.forward(edge-2.0*args.corner_inset)
turtle.circle(-args.corner_radius, 60) turtle.circle(-args.corner_radius, 60)
elif layer=='plug' or layer=='plug_mark': elif layer=='plug' or layer=='plug_mark':
turtle.forward(args.plug_inset)
turtle.pendown() turtle.pendown()
for side in range(6): for side in range(3):
turtle.forward(0.5*edge)
turtle.right(90) turtle.right(90)
turtle.circle(0.5*edge-args.plug_inset, 180) turtle.circle(0.5*edge, 120)
turtle.right(90) turtle.right(90)
turtle.circle(-args.plug_radius, 60) turtle.forward(0.5*edge)
elif layer=='opening': turtle.right(60)
turtle.forward(args.plug_inset)
turtle.pendown()
for side in range(6):
turtle.forward(edge-2.0*args.plug_inset)
turtle.circle(-args.plug_radius, 60)
else: else:
turtle.pendown() turtle.pendown()
for side in range(6): for side in range(6):