Maya Ellison
Adding weight to plastic models can be challenging, but there are several methods to achieve this. Some model kits, such as Tamiya's higher-end offerings, include weights. Alternatively, you can use lead golf club weights, which can be cut to shape and added to specific areas without deforming the plastic. Car wheel balancing weights with strong adhesives or a diecast base can also be used. For those seeking an innovative solution, consider using magnets, especially useful for posing models on metal surfaces.
| Characteristics | Values |
|---|---|
| Lead golf club weights | Can be cut to shape and added to the model without deforming the plastic |
| Magnets | Can be superglued to the feet of the model to add weight and keep it posed on a metal display shelf |
| Blu-tack/Poster putty | Can be used to add weight to models and other items like volume controls on sound systems |
| Rocks | Difficult to control the weight distribution and may cause the model to tilt |
| Diecast base | Adds weight to the model |
| Bird shot | Can be used to weigh down aircraft models |
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What You'll Learn
Use lead golf club weights
Adding weight to a plastic model can be done in various ways, and one of the most effective methods is to use lead golf club weights. Lead weights are commonly used in golf clubs to alter the weight and feel of the club, and they can also be advantageous when adding weight to models. Here are some reasons why lead golf club weights are a great option:
Ease of Use and Flexibility
Lead golf club weights are designed to be easy to apply and adjust. They typically come in the form of thin, flexible tape with an adhesive backing, making them simple to cut and shape according to your specific needs. This adaptability ensures that you can add just the right amount of weight to your model without causing deformation or affecting the overall aesthetics.
Incremental Weight Adjustment
Lead tape for golf clubs is usually available in standard widths, such as 1/2-inch or 1-inch strips. Each inch of lead tape typically weighs about 1 gram, allowing for precise incremental adjustments. This precision is crucial when adding weight to a plastic model, as it helps you gradually achieve the desired weight without adding too much or too little.
Application Techniques
When using lead golf club weights, it's important to ensure the application surface on the model is clean and flat. Lightly sanding the area with sandpaper can create a smoother surface for better adhesion. After removing the protective paper strip from the lead tape, carefully apply it to the desired spot on your model. Use a golf ball or a similar object to flatten and secure the tape firmly in place.
Safety Considerations
When working with lead weights, it's essential to take safety precautions. Always wear gloves when handling lead tape, and make sure to wash your hands thoroughly afterward. Properly dispose of any lead waste, and avoid storing the tape in your model-making kit to prevent accidental exposure.
Combining with Other Techniques
While lead golf club weights can be a great solution for adding weight to plastic models, you can also combine them with other techniques for more intricate models. For example, you can use magnets in specific areas, such as the feet of mech models, to enhance stability and posing capabilities on metal surfaces. Additionally, consider using weight screws or rubber-coated tungsten weights designed for golf clubs if they better suit certain parts of your model.
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Add magnets to plastic models
Adding magnets to plastic models is a great way to increase their weight and stability. Here are some detailed instructions on how to achieve this:
Choosing the Right Magnets
Start by selecting the appropriate magnets for your plastic model. Permanent magnets are a popular choice as they can be easily incorporated into various products. Plastic integrated magnets are another option, which combines magnetic and plastic properties, resulting in enhanced durability. These magnets are created through injection molding, mixing magnetic materials with thermoplastic resin to form a cohesive unit.
Preparing the Surfaces
Before attaching the magnets, ensure that the bonding surfaces of both the plastic model and the magnets are thoroughly cleaned. This step ensures that the adhesive will bond securely to the surfaces.
Using Adhesives
Adhesives are commonly used to attach magnets to plastic. It is recommended to consult adhesive experts to determine the most suitable glue for your specific requirements. For larger-scale bonding, adhesive manufacturers can even offer customized adhesive services. When selecting an adhesive, consider the strength of the bond, its resistance to detachment, and whether it will discolour over time. Two-part epoxies, for example, provide a strong and lasting bond. Alternatively, you can use adhesive-backed magnets, which are convenient and easy to apply. However, if the plastic surface is uneven, you may need to use a thicker adhesive to ensure proper contact.
Ultrasonic Welding
Another method for attaching magnets to plastic is through ultrasonic welding. This technique uses high-frequency ultrasonic vibrations to heat and join the plastic and magnet together, resulting in a strong bond.
Gluing Process
Once you have selected the appropriate adhesive, apply it to the cleaned plastic surface. Then, carefully position the magnet on the desired spot and allow the glue to dry undisturbed. This process should result in a secure bond between the magnet and the plastic model.
Additional Tips
If you are magnetizing a model's bits, super glue can be sufficient as long as the magnets touch when connected. Additionally, consider the overall design of the plastic model. Incorporating snap-fit features or utilizing complete encapsulation may enhance the convenience and effectiveness of attaching magnets.
By following these steps and selecting the appropriate adhesives or welding techniques, you can successfully add magnets to your plastic models, increasing their weight and stability, and potentially enabling new functionalities.
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Blu-tack for non-modelling
Blu Tack, a reusable putty-like adhesive, has several non-modelling applications. For instance, it can be used to hold through-hole electronic components in position for soldering onto PC boards. Blu Tack can also be used as a damping agent for sound and vibration applications due to its low amplitude response properties. In fact, a 2013 study concluded that Blu Tack is a comfortable alternative to over-the-counter earplugs for the attenuation of everyday sound.
In addition to its sound-dampening capabilities, Blu Tack can be used to prevent objects from falling or moving. For example, the New Zealand Government Earthquake Commission recommends using Blu Tack to secure ornaments and small household items in the event of an earthquake. Similarly, Blu Tack was often used with the Sinclair ZX81 microcomputer to stabilise wobbly external RAM modules and prevent crashes.
Another non-modelling use of Blu Tack is as an arts and crafts material, especially for children. Blu Tack is less messy than play-dough, not sticky like clay, and holds its shape well. It can be used to create various objects, including people, animals, jewellery, and scenes. Blu Tack is also available in different colours, adding a creative element to the modelling experience.
While Blu Tack is commonly used for non-modelling purposes, one potential drawback is that it can lose its adhesiveness over time. This may limit its effectiveness in certain applications where a strong and long-lasting bond is required. However, for temporary attachments or creative projects, Blu Tack remains a versatile and useful material.
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Diecast base for weight
Diecast model kits are made primarily from metal, typically zinc alloy, which gives them a sturdy and durable structure. The manufacturing process involves pouring molten metal into a mould to create precise and detailed components. Diecast models are known for their realistic weight and solid feel, which adds to their authenticity.
Diecast models often come pre-painted and pre-assembled, making them popular among collectors who value realism and durability. The weight of these models can be a drawback in certain situations, such as when building a large collection, as the combined weight can make storage and transportation challenging.
However, the weight of diecast models can also be advantageous, especially when used as a base for plastic models. A diecast base can add a nice amount of weight to a plastic model, improving its stability and giving it a more solid feel. This can be particularly useful for display purposes, as it helps the model stay firmly in place.
When choosing between a diecast or plastic model kit, it's important to consider your personal preferences, goals, and circumstances. Diecast models offer durability and realism, but they may be more expensive and have limited customisation options due to their pre-assembled nature. Plastic kits, on the other hand, are generally more affordable and allow for more creativity in building and customising. Ultimately, the decision depends on the specific requirements and intended purpose of the model.
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Bird shot for weighing down aircraft models
Weighing down aircraft models can be a challenging task, and bird shot can be an effective solution. Bird shot, or birdshot, refers to an incident when a bird hits an aircraft, and it is a concern for aviators, especially during take-off and landing. While the primary focus is on preventing bird strikes, adding weight to aircraft models presents a unique challenge.
Bird shot can be used to add weight to aircraft models by creating a scratch-built container to hold the shot. This method was shared by a model builder who had struggled with weighing down aircraft models in the past. The container can be designed to fit within the model, providing the necessary weight while maintaining the model's structural integrity.
When using bird shot to weigh down aircraft models, it is essential to consider the weight distribution. Similar to adding weight to any model, uneven weight distribution can cause the model to tilt or become unstable. Careful placement of the bird shot container(s) is crucial to achieving the desired balance.
In addition to bird shot, there are other methods to weigh down aircraft models. Some model kits, such as those from Tamiya, include weights. Using lead weights designed for golf clubs is another option, as they can be cut to shape and added without deforming the plastic. Scratch-building a small wall with a nut and bolt or using car wheel balancing weights with strong adhesives are also creative solutions.
Overall, bird shot can be a viable option for weighing down aircraft models. By constructing a custom container, model builders can utilize bird shot to add weight while maintaining control over the weight distribution. Combining this technique with other methods can help achieve the desired weight and balance for a stable and aesthetically pleasing aircraft model.
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Frequently asked questions
You can add weight to a plastic model by using lead golf club weights, which can be cut to shape.
Yes, you could use bird shot, car wheel balancing weights, or even magnets if you want your model to stick to a metal surface.
Car wheel balancing weights can be found at most auto parts stores or online. They are designed to balance car wheels, but can also be used as weights for plastic models.
Bird shot is a type of ammunition used for hunting birds. It can be placed inside a plastic model to add weight.
Yes, Tamiya includes weights in their higher-end kits, and their LAV model comes with a die-cast base that adds a nice amount of weight to the model.
