Electrical 3D Wooden Puzzles for Adults, DIY Marble Run Model Building Kits with Motor, Engineering Toys Gifts

Mechanical Gear Device: The Miebely 3D Wooden Puzzle Model Set is a product that can be driven to move without the use of glue. It features two modes of operation: Rotated Electrically and Rotated Manually.

When the house is installed and the switch is turned on, the device can run electrically, requiring 3 AA batteries (not included). Alternatively, the 3D puzzle can be switched between manual and electric modes, allowing users to shake the house to make the machine run when it is removed.

The product features Orbital Steel Balls, with a total of 10 small steel balls, five of which are spares to prevent loss during use. These small steel balls can be stored in the chimney.

The Tenon and Mortise Structure is an ingenious design that connects the wooden pieces together in a concave-convex way, forming a firm structure through the combination of long and short, more and less, high and low.

Assembly Notes: 1. Precautions: Avoid pressing the left and right stairs too tightly, as this can prevent smooth operation. During assembly, three iron shafts will be used, and the sticker and size required in the manual should be used for comparison. 2. Press the Board into Place: Read the instructions carefully, paying attention to the direction of the board, and press it into place. If necessary, a small hammer (included in the package) can be used to help. 3. How to Pop Out the Puzzle Piece: 1) Find the connection point of the board and press down gently; 2) After loosening, lift up in the opposite direction; 3) Shake up and down gently to remove the board easily. 4. Small Steel Ball Operation Process: 1) Place the small steel ball in the chimney and turn it on (automatic); 2) Two small steel balls can be transported to the small ladder through the large gear, triggering the left and right switches; 3) Two small steel balls run from left and right directions; 4) A steel ball enters the S-shaped orbit and returns to the starting point; 5) Another steel ball slips from the step track and runs back to the starting point.

Handicraft: The Miebely 3D Wooden Puzzle Model Set is composed of 235 small wooden blocks, with precise laser cutting technology controlling the error of the parts within five microns. Each wooden block is finely ground to prevent burrs, ensuring a smooth assembly process.

Sturdy and High-Quality Material: The gravity track ball model is made of high-quality basswood, with a wood block thickness of 3mm-4mm, making the structure more stable and preventing damage to key components during assembly.

Easy to Assemble: The Miebely Roller Coaster Wooden 3D Puzzle Craft Kit comes with a detailed English instruction manual, and each puzzle piece is clearly marked with a serial number, allowing for quick and smooth assembly.

Unique Design and Decoration: The 3D Wood Puzzle is a great design for home decor and a challenge for those who enjoy making models. The entire model adopts a tenon-and-mortise structure without using any glue or tools, creating an exquisite appearance that will surely amaze your friends when placed on a bookshelf.

Unbelievable Gift: The high-quality handcrafted 3D puzzle model set can create unforgettable and memorable collaborative moments with your kids and family during the assembly process, which takes about 6 hours. It is an ideal gift for wood-loving friends and family.

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