Abstract: Methods, devices, and systems are used for three-dimensional models for three-dimensional makers to indicate engineering requirements. In an example, operations may be effectuated that include displaying a graphical user interface including an object in a three-dimensional (3D) space and receiving first data that includes a link between a flag and a component of the object. The flag may be indicative of an engineering requirement associated with the component of the object. The flag in the 3D space approximate to the component of the object may be displayed based on the received data.

Abstract: Methods, devices, and systems are used for three-dimensional models for three-dimensional makers to indicate engineering requirements. In an example, operations may be effectuated that include displaying a graphical user interface including an object in a three-dimensional (3D) space and receiving first data that includes a link between a flag and a component of the object. The flag may be indicative of an engineering requirement associated with the component of the object. The flag in the 3D space approximate to the component of the object may be displayed based on the received data.

Abstract: A bottle having a storage chamber defined by spaced upper and lower surfaces and planar sidewalls; a conical ceiling in said upper surface having an opening at the top thereof; a conical convex recess in said lower surface for receiving the conical ceiling of the next adjacent bottle when stacking said bottles, and means for interlocking the sides and upper and lower surfaces of the bottles when stacked.

Abstract: A stackable bottle for use with liquids or other consumable materials and a system of such stackable bottles features nesting bottles having interlocking upper and lower surfaces, interlocking side walls and integral handles. Each bottle has generally planar side walls to permit optimization of stack volume. Bottles are designed to be stacked in an upright position to reduce spillage from the neck of each bottle. Interlocks provide a locational transition fit engagement for ease of connection and disconnection.