5 Costly Hobbies Where Investing in a 3D Printer Cuts Your Expenses

3D printers, like those used by NASA on the International Space Station, can create tools and spare parts as needed. For hobbyists on Earth, these printers offer a cost-effective way to produce components and accessories compared to store prices. But is investing in one a wise decision?

3D printing—often referred to as additive manufacturing—utilizes computer-aided design (CAD) models, which can be sourced online or created by you, to fabricate three-dimensional items. Entry-level models, such as the Creality Ender-3 V3 SE, start at about $170, while more advanced setups can exceed $700. Filament, typically around $20 per kilogram, is used in most entry-level devices. Producing multiple $10 items from a kilogram of filament demonstrates significant savings. Assess material and equipment costs to see potential savings. Alternatively, some libraries and maker spaces offer printer access, and online services can also provide printing at a fee.

Most home printers utilize FDM (fused deposition modeling), where plastic filament, often polylactic acid (PLA), is melted and extruded to create items. Higher-end printers may employ resin (SLA/DLP) or polymer powder (SLS) technologies. Below, we explore how FDM printers can offer significant savings in several popular hobbies; consider upgrading to SLA printers for detailed projects.

Fans of drones and remote-controlled vehicles can significantly reduce costs by printing spare parts. Many 3D modeling platforms feature sections specifically for drone components. While critical components like propellers should be cautiously printed only after validating their design and durability, other parts, such as camera mounts and protective guards, can be safely created.

After experiencing crashes, drone enthusiasts know how often parts need replacing. If a replacement part costs $10, having a 3D printer that produces it for less will quickly pay for itself. Furthermore, similar to the convenience seen on the Space Station, printing parts may be quicker and more affordable than ordering from online retailers.

Whether you’re a mechanic or a green-thumbed gardener, a 3D printer can be a gold mine of solutions. You probably require a range of replaceable parts that are often cheaper to produce than to buy, particularly when they are sold in bulk or command high prices due to their specialized nature.

You can create a variety of useful items, from garden markers to plant containers and tool organizers. In the garage, replicate hard-to-find auto parts, broken knobs, or even custom wrenches. The ability to print exactly what you need is a great time-saver that can simplify both gardening and mechanical work.

3D printers are also great for enhancing home automation. You can create everything from cable management tools and shelving for devices to unique components for smart home projects.

For those using near-field communication (NFC) stickers for controlling devices, you can design more visually appealing housings or mechanisms for them. Consider expanding your creativity with solutions like a “Tap-for-Wi-Fi” NFC sign for guest access or crafting a custom mount for a Home Assistant touchscreen—dramatically cutting costs compared to brand-name models.

Photography and videography enthusiasts often feel the pinch from the hefty prices of camera accessories like lens caps and battery holders. With 3D printing, you can fabricate essential items at a fraction of the cost; why pay high prices for a branded lens cap when you can print a universal one for mere cents?

You can also create battery plates, mounts for microphones and lighting, selfie handles, and compact tripods. Flexibility to tweak CAD files means you can craft specialized tools for unique shots.

For gamers, Dungeons & Dragons enthusiasts, and model railroad fans, 3D printing enhances creativity and immersion. Create custom characters, terrains, buildings, and accessories that enrich your experiences. The vast selection of models available online, especially for tabletop games, showcases a thriving community of creators.

While there are numerous advantages to owning a 3D printer, it’s crucial to assess your intended usage, personal skills, and overall running costs before making the investment. Ensure you have sufficient space and ventilation, as 3D printers require proper setups. Starting with access to someone else’s printer can also help you determine if this technology fits your needs.