Life Size Dummy 13 Assembly Instructions

Dummy 13 Assembly Overview
The general Dummy 13 assembly instructions are outlined below. Before beginning the life‑size build, assemble the included free 8" Dummy 13. This smaller model will help you become familiar with the components and how they fit together.

Scaling a design to 1300% introduces challenges that aren’t present at the 8" size. Some parts simply cannot fit on a 3D‑printer build plate at this scale, so certain components will arrive in two pieces. In addition, plastic behaves very differently at this size—large parts do not flex the way small ones do. To compensate, the joints in the life‑size Dummy 13 have been specially engineered to provide additional flexibility while still maintaining the tension needed to hold poses.

Even with these redesigned joints, we found that assembly forces at this scale could still cause cracking. For that reason, all skeleton components are printed in PA6/66 nylon, a tough engineering‑grade polymer with characteristics that become especially valuable during assembly.

One of nylon’s key advantages is its ability to be moisture‑conditioned. When exposed to a high‑humidity environment for 24 hours, nylon absorbs moisture and becomes significantly more flexible, making joint insertion much easier. As the material returns to equilibrium with room air, it gradually regains its original rigidity.

Moisture‑Conditioning the Nylon Parts
To make assembly easier and reduce the risk of cracking, we strongly recommend moisture‑conditioning the nylon socket components before installation.

Place the parts in an airtight container along with a moistened paper towel or damp sponge. The goal is to create a high‑humidity environment—do not allow the parts to touch standing water. Seal the container and leave the parts inside for 24 hours.

For best results, we recommend using this Sterilite gasket‑seal tote available at Walmart. This style of container traps humidity reliably for the full conditioning period. https://www.walmart.com/ip/Sterilite-20-Quart-Clear-Gasket-Box-with-Blue-Latches-Gasket/39916455

If you do not have a gasketed tote, you may use a standard plastic storage bin by covering the entire top with plastic wrap before placing the lid on. This creates a temporary seal that helps maintain humidity.

Pre‑Assembled Components
Where practical, major sections of your Dummy 13—such as the chest, pelvis, arms, and legs—have been pre‑assembled. For any remaining joints that require assembly, we strongly recommend moisture‑conditioning the socket components using the method above.

Assembling the Joints
Even when properly moisture‑conditioned, the life‑size Dummy 13 joints may require a considerable amount of force to seat fully. This is normal. The joints are engineered to be tight so they can support the weight and maintain stable poses once assembled.

Rest assured that the parts will fit, and with proper moisture conditioning beforehand, the risk of cracking is significantly reduced. Take your time, apply steady pressure, and ensure the components are aligned before committing to the final push.

Using Heat to Assist Assembly
Gentle heat can also help. Lightly warming the parts will make them more pliable; however, take care not to overheat or deform the plastic. A hair dryer is often the safest option, as it provides enough heat to increase flexibility without reaching the temperatures of a heat gun.

If a Part Cracks
If a part does crack during assembly, don’t worry—super glue works well for minor repairs, and replacement components are available at a nominal cost.

Final Notes
Enjoy assembling your Dummy 13. It’s a unique, hands‑on experience, and the finished piece is something you’ll be proud to display. If you have any questions or run into difficulty at any point, simply email support@3DCreationsofRI.com and we’ll be happy to help.