import bpy, math from mathutils import Vector # CARE-ED standalone animated fidget toy scene. # Run this file in Blender 3.6+ / 4.x: Scripting > Open > Run Script. # Components are separate objects. Motion is keyframed kinematic animation, # not a rigid-body physics validation. bpy.ops.object.select_all(action='SELECT') bpy.ops.object.delete(use_global=False) scene = bpy.context.scene scene.frame_start = 1 scene.frame_end = 120 scene.render.fps = 30 scene.render.resolution_x = 1200 scene.render.resolution_y = 900 def mat(name, color, metallic=0.0, roughness=0.34): m = bpy.data.materials.new(name) m.diffuse_color = (*color, 1) m.use_nodes = True bs = m.node_tree.nodes.get("Principled BSDF") if bs: bs.inputs["Base Color"].default_value = (*color, 1) bs.inputs["Metallic"].default_value = metallic bs.inputs["Roughness"].default_value = roughness return m TEAL=mat("Care-Ed Teal",(0.025,0.48,0.45),0.08) PURPLE=mat("Care-Ed Purple",(0.36,0.20,0.68),0.04) CORAL=mat("Care-Ed Coral",(0.92,0.22,0.18)) YELLOW=mat("Care-Ed Yellow",(0.98,0.65,0.12),0.08) DARK=mat("Graphite",(0.08,0.10,0.13),0.15) WHITE=mat("Warm White",(0.9,0.93,0.9)) def finish(o, material, bevel_width=0.035): if material: o.data.materials.append(material) if o.type == 'MESH': for p in o.data.polygons: p.use_smooth=True if bevel_width and o.type == 'MESH': b=o.modifiers.new("Rounded manufactured edges",'BEVEL') b.width=bevel_width; b.segments=3 o.modifiers.new("Weighted normals",'WEIGHTED_NORMAL') return o def box(name, loc, dims, material, bevel_width=0.04): bpy.ops.mesh.primitive_cube_add(size=1, location=loc) o=bpy.context.object; o.name=name; o.dimensions=dims bpy.ops.object.transform_apply(location=False, rotation=False, scale=True) return finish(o,material,bevel_width) def cyl(name, loc, radius, depth, material, rotation=(0,0,0), bevel_width=0.025, vertices=48): bpy.ops.mesh.primitive_cylinder_add(vertices=vertices,radius=radius,depth=depth,location=loc,rotation=rotation) o=bpy.context.object; o.name=name return finish(o,material,bevel_width) def sphere(name, loc, scale, material): bpy.ops.mesh.primitive_uv_sphere_add(segments=32,ring_count=20,location=loc) o=bpy.context.object; o.name=name; o.scale=scale bpy.ops.object.transform_apply(location=False,rotation=False,scale=True) return finish(o,material,0) def torus(name, loc, major, minor, material, rotation=(0,0,0)): bpy.ops.mesh.primitive_torus_add(major_radius=major,minor_radius=minor,location=loc,rotation=rotation) o=bpy.context.object; o.name=name return finish(o,material,0) def parent_keep_world(child, parent): world=child.matrix_world.copy() child.parent=parent child.matrix_world=world def animate_rotation(obj, axis=2, turns=1, start=1, end=120): """Keyframe rotation without relying on Blender-version-specific Action FCurves APIs.""" obj.rotation_mode='XYZ' obj.keyframe_insert(data_path='rotation_euler',frame=start,group='Mechanism Motion') r=list(obj.rotation_euler) r[axis] += turns*2*math.pi obj.rotation_euler=r obj.keyframe_insert(data_path='rotation_euler',frame=end,group='Mechanism Motion') def animate_linear(obj, start_loc, end_loc, start=1, mid=30, end=60): """Keyframe a back-and-forth translation using Blender's stable object API.""" obj.location=start_loc obj.keyframe_insert(data_path='location',frame=start,group='Mechanism Motion') obj.location=end_loc obj.keyframe_insert(data_path='location',frame=mid,group='Mechanism Motion') obj.location=start_loc obj.keyframe_insert(data_path='location',frame=end,group='Mechanism Motion') def label(body, loc, size=0.35): curve=bpy.data.curves.new(body,'FONT') curve.body=body; curve.size=size; curve.align_x='CENTER' o=bpy.data.objects.new(body,curve); bpy.context.collection.objects.link(o) o.location=loc; o.data.materials.append(WHITE) return o def studio(title, center=(0,0,0), scale=5.5): floor=box("Studio Ground",(0,0,-0.20),(12,9,0.25),DARK,0.02) label(title,(0,-3.6,0.0),0.32) bpy.ops.object.camera_add(location=(0,-7,7)) cam=bpy.context.object; cam.name="Studio Camera" direction=Vector(center)-cam.location cam.rotation_euler=direction.to_track_quat('-Z','Y').to_euler() cam.data.type='ORTHO'; cam.data.ortho_scale=scale scene.camera=cam for name,loc,power,size in [ ("Key Light",(-4,-4,7),1300,6), ("Fill Light",(4,-1,5),900,5), ("Rim Light",(0,4,6),1000,4)]: bpy.ops.object.light_add(type='AREA',location=loc) l=bpy.context.object; l.name=name; l.data.energy=power; l.data.shape='DISK'; l.data.size=size l.rotation_euler=(Vector((0,0,0))-l.location).to_track_quat('-Z','Y').to_euler() scene.frame_set(1) # FLEX-LINK: articulated segments pivot at hinges in a linked chain. box("FlexLink | Display Base",(0,0,0.08),(3.7,1.2,0.16),DARK,0.08) # Each hinge empty is located at the joint; downstream segment is parented to it. A=box("FlexLink | Segment A",(-0.75,0,0.42),(0.95,0.34,0.16),TEAL,0.10) pivot1=bpy.data.objects.new("FlexLink | Hinge 1",None); bpy.context.collection.objects.link(pivot1) pivot1.location=(-0.25,0,0.42); pivot1.empty_display_type='CIRCLE'; pivot1.empty_display_size=0.18 parent_keep_world(A,pivot1) # Segment B is positioned with its left end at pivot1; use a hinge pivot for it B=box("FlexLink | Segment B",(0.25,0,0.42),(0.95,0.34,0.16),PURPLE,0.10) pivot2=bpy.data.objects.new("FlexLink | Hinge 2",None); bpy.context.collection.objects.link(pivot2) pivot2.location=(0.75,0,0.42); pivot2.empty_display_type='CIRCLE'; pivot2.empty_display_size=0.18 parent_keep_world(B,pivot2) C=box("FlexLink | Segment C",(1.25,0,0.42),(0.95,0.34,0.16),TEAL,0.10) # Visible hinge pins cyl("FlexLink | Pivot Pin 1",(-0.25,0,0.53),0.11,0.12,YELLOW) cyl("FlexLink | Pivot Pin 2",(0.75,0,0.53),0.11,0.12,YELLOW) # Keyframe pivot rotations, not segment geometry; each part swings around its hinge. for pivot,vals in [ (pivot1,[(1,0),(30,28),(60,0),(90,-28),(120,0)]), (pivot2,[(1,0),(30,-22),(60,0),(90,22),(120,0)])]: for frame,deg in vals: pivot.rotation_euler[2]=math.radians(deg) pivot.keyframe_insert(data_path='rotation_euler',frame=frame,group='Mechanism Motion') label("FLEX-LINK",(0,-1.25,0.02)) studio("CARE-ED • FLEX-LINK",(0,0,0.35),5.7)