What Can I Do With Old PLA Filaments? Tips and Tricks

You can recycle, reuse, or repurpose your old PLA filaments to create new products, reduce waste, and save money. PLA is a biodegradable and eco-friendly material that can be melted, molded, or processed in various ways. In this article, we will explore some of the best ideas and tips for using your old PLA filaments.

Recycle Your PLA Filaments

One of the most common and effective ways to use your old PLA filaments is to recycle them into new filaments. This can be done by using a filament extruder, which is a device that melts and extrudes plastic materials into a thin strand. You can either buy a filament extruder or build your own using a 3D printer and some parts.

Recycling your PLA filaments can help you save money, as you can reuse your leftover or failed prints instead of buying new ones. It can also help you reduce your environmental impact, as you can avoid throwing away plastic waste. However, recycling PLA filaments requires some skills and equipment, and it may not produce the same quality as new filaments. Therefore, you should always test your recycled filaments before using them for important projects.

Reuse Your PLA Filaments

Another way to use your old PLA filaments is to reuse them for different purposes. For example, you can use your old PLA filaments to:

  • Repair or reinforce your 3D prints. You can use a soldering iron or a heat gun to melt and fuse your old PLA filaments to your existing prints, filling in gaps, cracks, or holes. This can help you fix your broken or damaged prints, or improve their strength and durability.
  • Create new shapes or objects. You can use a heat gun or a hot water bath to soften and bend your old PLA filaments into various shapes, such as rings, bracelets, hooks, or hangers. You can also use a mold or a cutter to create more complex shapes, such as flowers, stars, or letters. This can help you create new accessories, decorations, or gifts using your old PLA filaments.
  • Make art or crafts. You can use your old PLA filaments to create colorful and creative art or crafts, such as sculptures, paintings, collages, or mosaics. You can also use your old PLA filaments to make tools or materials for your art or crafts, such as brushes, stamps, or beads. This can help you express your artistic side and have fun with your old PLA filaments.
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Repurpose Your PLA Filaments

A third way to use your old PLA filaments is to repurpose them for other uses. For example, you can use your old PLA filaments to:

  • Donate or sell them. You can donate or sell your old PLA filaments to other 3D printing enthusiasts, hobbyists, or makers who may need them for their projects. You can also donate or sell your old PLA filaments to schools, libraries, or community centers that have 3D printers and offer 3D printing services or education. This can help you share your resources and support your local 3D printing community.
  • Compost them. You can compost your old PLA filaments, as PLA is a biodegradable material that can be broken down by microorganisms in the soil. You can either compost your old PLA filaments at home, using a compost bin or a worm farm, or send them to a commercial composting facility. This can help you reduce your landfill waste and create organic fertilizer for your plants.

Conclusion

Old PLA filaments are not useless or worthless. You can recycle, reuse, or repurpose them to create new products, reduce waste, and save money. PLA is a biodegradable and eco-friendly material that can be melted, molded, or processed in various ways. By using your old PLA filaments, you can also unleash your creativity, improve your skills, and support your community. So, don’t throw away your old PLA filaments, use them!