Buying guide for 3d printer accessories

So, you’ve taken the plunge and brought a 3D printer into your workshop. Excellent! Whether it’s a budget-friendly Ender 3 or a more advanced Prusa, you’ve opened up a world of possibilities. But as you start printing, you’ll quickly realize that the printer itself is just the beginning. To truly unlock its potential, and to make your 3D printing journey smoother, more reliable, and more enjoyable, a few well-chosen accessories are essential. Think of it like a new woodworking bench – you wouldn’t just buy the bench and call it a day, would you? You’d need clamps, chisels, squares, and a good dust collection system. The same principle applies here.

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Essential Upgrades for Every 3D Printer Owner

Let’s start with the basics – the things that will improve your print quality, make your life easier, and potentially save you from frustration. These aren’t fancy, but they’re foundational.

Bed Adhesion Solutions: Sticking Your Prints (Literally)

One of the most common frustrations for new 3D printer users is prints not sticking to the build plate, or worse, sticking too well. There are several solutions, and the best one often depends on your printer and the materials you’re using.

• PEI Sheets: For most FDM (Fused Deposition Modeling) printers, a spring steel sheet with a PEI (Polyetherimide) coating is a game changer. PEI offers excellent adhesion when heated and then, once cooled, prints often pop right off with a gentle flex of the sheet. No more scraping, no more glue sticks (unless you’re printing something really tricky like PETG without a texture). I’ve used both smooth and textured PEI sheets extensively. The textured surface is fantastic for hiding minor first-layer imperfections and gives a nice finish to the bottom of the print. Smooth PEI is better for parts where you need a perfectly flat, glossy base. If your printer didn’t come with one, consider an upgrade like the Creality Textured PEI Magnetic Flexible Build Plate for common bed sizes.
• Adhesive Sprays & Sticks: For printers with glass beds or those stubborn materials, a good old glue stick (like a purple disappearing school glue stick) or a specialized adhesive spray can work wonders. These create a temporary tacky surface that helps the first layer adhere. Just remember to clean your bed regularly.
• Magigoo or similar specialized adhesives: These are pricier but formulated for specific, difficult materials like nylon or ABS, providing superior adhesion and often easier release. For the occasional specialty print, they can save a lot of headaches.

Filament Storage: Keeping Your Material Dry

Filament, especially PLA, PETG, and nylon, is hygroscopic, meaning it absorbs moisture from the air. Moist filament leads to poor print quality – stringing, blobs, weak layers, and even clogs. Proper storage is crucial.

• Dry Boxes/Dehydrators: The simplest solution is an airtight container with desiccant packets. These can be DIY jobs using large food storage containers or purpose-built filament dry boxes. For truly wet filament, or for materials like nylon that are highly sensitive to moisture, a dedicated filament dryer is invaluable. These gently heat the filament to drive out moisture. I prefer a dedicated dryer like the EIBOS Filament Dryer which allows you to print directly from the dry box. For those getting into advanced materials, this is a must-have.
• Vacuum Seal Bags: For long-term storage of less frequently used spools, vacuum seal bags with desiccant are an excellent option. They keep the air and moisture out effectively.

Bed Leveling Tools: Getting That Perfect First Layer

A perfectly leveled bed is the foundation of a successful print. While many modern printers feature auto-bed leveling (ABL) systems, they still benefit from a good initial manual level and periodic checks.

• Feeler Gauges: Forget the piece of paper trick. A set of feeler gauges gives you precise control over your nozzle gap. I typically aim for 0.1mm for a good first layer squish. They’re inexpensive and far more accurate than paper.
• Calibration Prints: There are numerous bed leveling test prints available on sites like Printables or Thingiverse. These print a single layer pattern across the bed, allowing you to fine-tune your Z-offset and level in real-time.

Tools for Maintenance and Post-Processing

Once your printer is dialed in, you’ll need tools to keep it running smoothly and to finish your prints to perfection.

Cleaning and Maintenance: Keeping Things Tidy

A clean printer is a happy printer. Dust, filament debris, and grime can all impact print quality and component lifespan.

• Brass Brush and Tweezers: Essential for cleaning nozzles. A brass brush is softer than steel and won’t damage the nozzle, while tweezers are great for pulling away stubborn blobs of filament.
• Isopropyl Alcohol (IPA): Perfect for cleaning build plates, especially glass and smooth PEI, removing oils and residues that can prevent adhesion.
• Lubricants: For linear rails and lead screws, a dry lubricant like PTFE spray or specialized grease is crucial to reduce friction and wear. Check your printer’s manual for recommended types.
• Nozzle Cleaning Needles: For clearing minor clogs, a set of fine needles (0.2mm - 0.4mm) can be a lifesaver. Be gentle, though, as excessive force can damage the nozzle.

Post-Processing: Making Your Prints Shine

Unless you’re going for a purely functional print, some post-processing can elevate your work from “3D printed” to “finished product.”

• Deburring Tool/Hobby Knife: For removing elephant’s foot, stringing, or support remnants, a good deburring tool or a sharp hobby knife (like an X-Acto) is indispensable.
• Flush Cutters: These are perfect for trimming filament, removing supports, and cleaning up small imperfections. Look for a pair with a comfortable grip and sharp blades. The Duratech Flush Cutters are a solid choice I’ve used for years.
• Sandpaper and Files: For smoothing surfaces, preparing for painting, or achieving tighter tolerances, a range of sandpaper grits and small files are invaluable.
• Heat Gun: Useful for removing stringing (especially on PETG) and for heat-setting threaded inserts. Be careful not to overheat and deform your print.
• Resin Curing Station (for Resin Printers): If you’ve ventured into resin printing, a dedicated UV curing station is non-negotiable for properly finishing your prints and ensuring their strength.

Advanced Accessories and Quality of Life Upgrades

Once you’ve got the basics covered, these accessories can further enhance your 3D printing experience, especially if you’re looking to push the boundaries of what your printer can do.

Enclosures: Temperature Control and Safety

An enclosure helps maintain a stable temperature around your print, which is critical for materials like ABS, ASA, and nylon to prevent warping and cracking. They also offer dust and noise reduction, and some even have filtration for harmful fumes.

• DIY Enclosures: Many makers build their own enclosures from IKEA furniture, plywood, or acrylic sheets. This is a cost-effective way to get started.
• Pre-made Enclosures: Brands like Creality and Prusa offer purpose-built enclosures that are easy to assemble and often include features like internal lighting and fire suppression.

Hotend Upgrades: Expanding Material Capabilities

The hotend is where the magic happens – melting the filament. Upgrading it can unlock new materials and improve print quality.

• All-Metal Hotends: These allow you to print at higher temperatures without issues like PTFE tubes degrading. Essential for engineering plastics like PC or high-temp nylon.
• Hardened Steel/Nozzles: A must-have for printing abrasive materials like carbon fiber or glass fiber filled filaments, which would quickly wear out a brass nozzle.
• High-Flow Hotends: For faster printing, these hotends are designed to melt filament more quickly, allowing for higher volumetric flow rates.

Remote Monitoring and Control: Printing Smarter

For those who want to keep an eye on their prints without being tethered to the printer.

• Raspberry Pi with OctoPrint: This is the gold standard for remote control. OctoPrint is open-source software that runs on a Raspberry Pi, allowing you to monitor your printer via a webcam, start/stop prints, upload g-code, and even get notifications on your phone. Click here to learn more about setting up OctoPrint.
• Klipper Firmware: An alternative firmware that runs on an external board (like a Raspberry Pi) and offloads processing from the printer’s mainboard. This can lead to faster, more accurate prints with features like input shaping to reduce ringing. Check out our guide to Klipper here.

Filament Runout Sensor: Preventing Failed Prints

A simple but effective upgrade. This sensor detects when your filament spool is empty and pauses the print, allowing you to load a new spool and resume. No more coming back to an air print! Many newer printers come with these built-in, but they are often an easy add-on for older models.

Bottom Line

Navigating the world of 3D printer accessories can feel overwhelming, but by focusing on your current needs and the problems you’re trying to solve, you can make smart choices. Start with bed adhesion and filament storage – these will address the most common frustrations. As you gain experience, consider quality-of-life improvements like remote monitoring or specialized hotends. Remember, every accessory should serve a purpose, either by improving print quality, making your workflow more efficient, or enabling new printing capabilities. Don’t fall into the trap of buying every shiny new gadget; instead, invest in tools that genuinely enhance your 3D printing journey. Happy printing!