Key Points for Prospective Buyers
1. Self-Assembly Product
The ‘Mechanical Jellyfish’ is not a ready-made product. Upon arrival, it consists of multiple separate components, including the main body, tentacles, light-emitting units, transparent dome, and stand. Purchasers are required to follow the instructions, select parts, and use tools to assemble the model into its final jellyfish form. The design emphasizes the process of transforming individual parts into a complete structure, appealing to those who enjoy hands-on creation rather than simply acquiring a finished item.
2. Involves Handling Small Parts and Tools
Assembly requires handling small screws, nuts, shafts, bearings, and tubular components. Each of the eight tentacles, for instance, is not a single molded piece but is constructed by threading multiple parts onto a thin shaft and securing connection points. Given that some parts may be similar in shape and size, careful attention to the instruction manual’s bag names, part numbers, and orientation is necessary. The recommended age for this model is 14 years and older due to the detailed work involved. Small parts, magnets, button batteries, and adhesives are included, so it is advised to keep the product out of reach of infants and pets during storage and assembly.
3. Requires a Spacious and Well-Lit Workspace
An assembly area with a flat surface to lay out parts and sufficient lighting to see intricate details is recommended. Using a workbench mat or shallow tray can help organize parts and prevent loss of small screws and nuts. It is advisable to open one bag of parts at a time, following the sequence in the instruction manual, to avoid mixing similar components. If assembly is interrupted, separating used and unused parts and noting the step number in the manual can facilitate resuming the work.
4. Comprehensive Japanese Assembly Manual Included
The product is expected to include a 54-page Japanese assembly manual. This manual will guide users with photos and exploded diagrams, indicating the bag to use, part numbers, part orientation, screw insertion direction, the state after assembly, and important notes. Parts are organized into bags labeled A through H, allowing users to identify the necessary components for each step. The presence of a manual indicates guidance for the process, not a guarantee of quick completion for everyone, as it still involves handling small metal parts at one’s own pace.
5. Lighting Function for Appreciation, Not Illumination
The transparent dome houses six small light-emitting units. This lighting feature is intended for aesthetic enhancement of the model, not as a general room or desk lamp. It serves to highlight the layers of the transparent dome, metal parts, and internal structure, allowing the model to be viewed in different lighting conditions. When the lights are off, the metallic texture and connections are visible; when on, the light radiating from within the transparent dome can be enjoyed. The use of button batteries eliminates the need for a power cord during display.
6. Static Display Model
The ‘Mechanical Jellyfish’ is inspired by the appearance of jellyfish swimming underwater, but it does not feature automatic swimming or moving tentacles. The eight tentacles are static metal parts designed for display, not for continuous movement by a motor. It is a tabletop assembly model designed for appreciating the internal lighting and the silhouette variations achieved by vertical or horizontal display. Prior to purchase, it is important to confirm the product type to avoid misidentifying it as a movable toy or lighting fixture based solely on its name or completed appearance.
7. Flexible Display Options
Upon completion, the model can be displayed either vertically or horizontally by adjusting the angle of the dedicated stand and the attachment position of the main body. Vertical display presents a jellyfish-like silhouette with the eight tentacles extending downwards from the transparent dome. Horizontal display positions the transparent dome forward and the tentacles backward, creating a silhouette reminiscent of underwater movement. Users can choose the display orientation to suit the height and depth of their chosen location, such as a desk, bookshelf, or display case. The completed size is approximately 27 cm (width) x 27 cm (depth) x 14 cm (height), with a weight of approximately 483 g. It is recommended to check the dimensions of the intended display area before purchasing.
Intended Audience
This product is designed for individuals who:
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Prefer to complete a project themselves rather than receiving a finished product.
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Enjoy mechanical structures such as screws, gears, and bearings.
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Seek to focus on detailed assembly tasks.
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Are interested in metal models and mechanical models as a hobby.
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Wish to create a memorable piece, including the assembly process.
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Desire to display a self-assembled model on their desk or in their study.
Conversely, those seeking a ready-to-display finished product, wishing to avoid intricate part installation, or intending to use it as an indoor lighting fixture may find that the product’s nature does not align with their needs. BLDB aims to provide comprehensive information, including both the product’s advantages and the necessary effort, to help purchasers make an informed decision.
Makuake Project Overview
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Project Name: Mechanical Jellyfish (Luminous Mechanical Jellyfish Metal Assembly Model)
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Executor: BLDB (Building Block)
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Platform: Makuake
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Acceptance Period: August 5, 2026 (Wednesday) – September 29, 2026 (Tuesday) (Planned)
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Planned General Sale Price: 26,544 yen (tax included)
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Makuake Price: From 16,580 yen (tax included)
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Shipping: Free domestic shipping
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Delivery Schedule: By the end of October 2026 (Planned)
Please note that limited-quantity rewards will end once the planned number is reached. Prices, quantities, discount rates, set contents, and delivery times are subject to change. For the latest information and support conditions, please check the Makuake project page.
Product Overview
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Product Name: Mechanical Jellyfish
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Product Type: Purchaser-assembled metal model
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Completed Size: Approximately 27 cm (width) x 27 cm (depth) x 14 cm (height)
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Main Unit Weight: Approximately 483 g
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Materials: Metal, ABS resin
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Tentacles: 8
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Light-Emitting Units: 6
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Power Source: 12 button batteries
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Display Methods: Vertical, Horizontal
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Japanese Assembly Manual: 54 pages
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Part Configuration: Divided into bags A through H, with spare parts
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Recommended Age: 14 years and older
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Planned Included Items: Main body parts set, dedicated stand, light-emitting units, button batteries, adhesive, Japanese assembly manual, assembly tools
This product requires self-assembly; it is not a finished product. It contains small parts, magnets, button batteries, and adhesive. Product specifications, appearance, and accessories are subject to change.
About BLDB
BLDB (Building Block) is a specialized brand offering 3D metal puzzles and precision mechanical models. The brand develops products based on themes such as insects, marine life, architecture, vehicles, and engines, allowing customers to enjoy both the process of assembling metal parts and the experience of observing mechanical structures and metallic textures in the completed model.
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Overseas Development Lead: SHUEI NETWORK TRADING CO., LTD.
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Official Online Store: BLDB Official Online Store
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Inquiries: info@bldb.jp
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Department in Charge: BLDB Japan Public Relations Office
