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Preparing a “Blobby” Object for Printing with Shapeways
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wallScale = 0.975; | |
print('Generate inner shell'); | |
bpy.ops.object.duplicate(); | |
innerShell = bpy.data.objects['0431630057 Sphere Tri 5.001']; | |
bpy.ops.transform.resize(value=(wallScale,wallScale,wallScale)); | |
print('Subtract inner from outer shell'); | |
bpy.context.scene.objects.active = outerShell; | |
bpy.ops.object.modifier_add(type='BOOLEAN'); | |
outerShell.modifiers[0].operation = 'DIFFERENCE'; | |
outerShell.modifiers[0].object = innerShell; | |
bpy.ops.object.modifier_apply(apply_as='DATA',modifier='Boolean'); | |
innerShell.select = True; | |
bpy.context.scene.objects.active = innerShell; | |
bpy.ops.object.delete(); |
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import bpy | |
from sys import platform as _platform | |
print('Delete existing meshes'); | |
bpy.ops.object.select_by_type(type='MESH'); | |
bpy.ops.object.delete(); | |
print('Load outer shell'); | |
bpy.ops.import_mesh.stl(filepath='0431630057_sphere_tri_5.stl'); | |
outerShell = bpy.data.objects['0431630057 Sphere Tri 5']; | |
print('Ensure normals face out'); | |
bpy.context.scene.objects.active = outerShell; | |
bpy.ops.object.mode_set(mode='EDIT'); | |
bpy.ops.mesh.select_all(action='SELECT'); | |
bpy.ops.mesh.normals_make_consistent(inside=False); | |
bpy.ops.object.editmode_toggle(); |
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import bpy | |
import math | |
from mathutils import Vector | |
def drange(start, stop, step): | |
r = start | |
while r <= stop: | |
yield r | |
r += step | |
r = 0.25; | |
rSphere = r*0.975; | |
sphereSubdivisions = 4; | |
print('Delete existing meshes'); | |
bpy.ops.object.select_by_type(type='MESH'); | |
bpy.ops.object.delete(); | |
context = bpy.context | |
# Cut out the spherical grid | |
for x in drange(-0.75/r, 0.75/r, 1): | |
for y in drange(-0.75/r, 0.75/r, 1): | |
for z in drange(-0.75/r, 0.75/r, 1): | |
print(x,y,z); | |
origin = (0,0,0); | |
moveTo = (x*2*r - (y%2*r) - (z%2*r), | |
r + (math.sqrt(3)*r*y) + (z%2*r)/2, | |
r + (math.sqrt(6)*2/3*r*z)); | |
bpy.ops.mesh.primitive_ico_sphere_add(location=origin,size=rSphere,subdivisions=sphereSubdivisions); | |
obj = context.active_object; | |
obj.location += Vector(moveTo); | |
sphereToDelete = bpy.data.objects['Icosphere']; |
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print('Export the mesh'); | |
bpy.ops.object.select_by_type(type='MESH'); | |
bpy.ops.export_mesh.stl(filepath='holyMesh.stl'); |
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r = 0.05; | |
rSphere = r*0.975; | |
for ( x = [-0.75/r:0.75/r]) { | |
for ( y = [-0.75/r:0.75/r]) { | |
for ( z = [-0.75/r:0.75/r]) { | |
translate( [x*2*r - (y%2*r) - (z%2*r), | |
r+ sqrt(3)*r*y + (z%2*r)/2, | |
r + sqrt(6)*2/3*r*z] ) | |
sphere(rSphere, $fn=50, center = false); | |
} | |
} | |
} |
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r = 0.05; | |
rSphere = r*0.975; | |
wallScale = 0.975; | |
difference() { | |
difference() { | |
% import("0431630057_sphere_tri_5.stl"); | |
scale([wallScale,wallScale,wallScale]) import("0431630057_sphere_tri_5.stl"); | |
} | |
% for ( x = [-0.75/r:0.75/r]) { | |
for ( y = [-0.75/r:0.75/r]) { | |
for ( z = [-0.75/r:0.75/r]) { | |
translate( [x*2*r - (y%2*r) - (z%2*r), | |
r+ sqrt(3)*r*y + (z%2*r)/2, | |
r + sqrt(6)*2/3*r*z] ) | |
sphere(rSphere, $fn=50, center = false); | |
} | |
} | |
} | |
} |
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import bpy | |
from sys import platform as _platform | |
import math | |
from mathutils import Vector | |
def drange(start, stop, step): | |
r = start | |
while r <= stop: | |
yield r | |
r += step | |
r = 0.25; | |
rSphere = r*0.975; | |
wallScale = 0.975; | |
sphereSubdivisions = 4; | |
print('Delete existing meshes'); | |
bpy.ops.object.select_by_type(type='MESH'); | |
bpy.ops.object.delete(); | |
print('Load outer shell'); | |
bpy.ops.import_mesh.stl(filepath='0431630057_sphere_tri_5.stl'); | |
outerShell = bpy.data.objects['0431630057 Sphere Tri 5']; | |
print('Ensure normals face out'); | |
bpy.context.scene.objects.active = outerShell; | |
bpy.ops.object.mode_set(mode='EDIT'); | |
bpy.ops.mesh.select_all(action='SELECT'); | |
bpy.ops.mesh.normals_make_consistent(inside=False); | |
bpy.ops.object.editmode_toggle(); | |
print('Generate inner shell'); | |
bpy.ops.object.duplicate(); | |
innerShell = bpy.data.objects['0431630057 Sphere Tri 5.001']; | |
bpy.ops.transform.resize(value=(wallScale,wallScale,wallScale)); | |
print('Subtract inner from outer shell'); | |
bpy.context.scene.objects.active = outerShell; | |
bpy.ops.object.modifier_add(type='BOOLEAN'); | |
outerShell.modifiers[0].operation = 'DIFFERENCE'; | |
outerShell.modifiers[0].object = innerShell; | |
bpy.ops.object.modifier_apply(apply_as='DATA',modifier='Boolean'); | |
innerShell.select = True; | |
bpy.context.scene.objects.active = innerShell; | |
bpy.ops.object.delete(); | |
context = bpy.context | |
# Cut out the spherical grid | |
for x in drange(-0.75/r, 0.75/r, 1): | |
for y in drange(-0.75/r, 0.75/r, 1): | |
for z in drange(-0.75/r, 0.75/r, 1): | |
print(x,y,z); | |
origin = (0,0,0); | |
moveTo = (x*2*r - (y%2*r) - (z%2*r), | |
r + (math.sqrt(3)*r*y) + (z%2*r)/2, | |
r + (math.sqrt(6)*2/3*r*z)); | |
bpy.ops.mesh.primitive_ico_sphere_add(location=origin,size=rSphere,subdivisions=sphereSubdivisions); | |
obj = context.active_object; | |
obj.location += Vector(moveTo); | |
sphereToDelete = bpy.data.objects['Icosphere']; | |
bpy.context.scene.objects.active = outerShell; | |
bpy.ops.object.modifier_add(type='BOOLEAN'); | |
outerShell.modifiers[0].operation = 'DIFFERENCE'; | |
outerShell.modifiers[0].object = sphereToDelete; | |
bpy.ops.object.modifier_apply(apply_as='DATA',modifier='Boolean'); | |
sphereToDelete.select = True; | |
bpy.context.scene.objects.active = sphereToDelete; | |
bpy.ops.object.delete(); |
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wallScale = 0.975; | |
difference() { | |
% import("0431630057_sphere_tri_5.stl"); | |
scale([wallScale, wallScale, wallScale]) import("0431630057_sphere_tri_5.stl"); | |
} |
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import("0431630057_sphere_tri_5.stl"); |
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