Best 3D Printing Pen

The 3Doodler Flow is my pick for most adult beginners who want to make things in plastic. Its simple speed buttons and useful starter kit make it an approachable place to begin. For a child, choose the cooler 3Doodler Start+. If you want to spend less, the SCRIB3D P1 is a sensible adult option; the MYNT3D Professional suits people who want finer control over the settings.

A 3D pen heats filament—the plastic you feed into it—and pushes it through a tip as you draw. You guide every line yourself, unlike a printer following a digital model. It’s worth buying for hand-made decorations, little sculptures and playful experiments. For neat, repeatable parts that must fit together precisely, you’ll want a printer.

3Doodler Flow: a good first 3D pen for adults

Choose the Flow if you’d rather concentrate on drawing than keep adjusting a speed slider. You get separate fast and slow buttons, a temperature display and a continuous drawing mode: click to start feeding plastic, then click again to stop. You don’t have to keep squeezing a button throughout a long line.

Start slowly. Getting a line right means moving your hand at about the same pace as the plastic coming out. Move too quickly and you stretch it; pause too long and you leave a lump. A slower feed gives you more time to follow a stencil or finish a corner. In a beginner craft trial using the supplied filament, the Flow’s slow setting helped the user draw more deliberately.

Earlier comparative drawing tests included straight lines, an upright box and a stenciled Eiffel Tower. The tested Flow produced clean lines that hardened quickly enough to draw over without pulling the earlier work out of place. It also felt comfortable in the hand. Those results describe the tested pen and plastic combination; they don’t mean every refill will set at the same speed.

That matters when you try drawing upward. Plastic needs time to stiffen before it can support itself. Start with flat outlines and small structures, rather than expecting to wave the pen around and produce a finished sculpture. Even a helpful pen can’t remove that learning curve.

Between the Flow and SCRIB3D P1, I’d pay more for the Flow if you expect to draw regularly. In the earlier comparison, the P1 worked reasonably well, but its grip and speed slider were less pleasant to use. Its cord was also roughly a foot shorter. Cord details can change between versions, so arrange your workspace near an outlet rather than buying around that old measurement.

The current US Flow kit includes eight small PLA spools, a power adapter, a maintenance tool, a guide and a stencil sheet. PLA is one of the common plastics used for 3D printing. Having several colors and a project to trace is useful when you’re learning what to do with the pen.

The main catch is refills. Although the Flow uses the familiar 1.75 mm diameter, its manual and warranty call for approved 3Doodler filament. Don’t buy it assuming you can freely use every spool beside your printer. The MYNT3D Professional is a better fit if you want to share your printer’s PLA or ABS filament instead. ABS is another common printing plastic.

Color changes also interrupt your work. You’ll need to unload one color, feed another and let the leftover color work its way out before starting a clean line. Think of the Flow as a one-color-at-a-time craft tool. Its two-speed setup is convenient, but someone who wants to adjust the flow gradually while drawing may prefer the MYNT3D slider.

3Doodler Start+: the 3D pen I’d choose for a child

For an 8-year-old or a 10-year-old, I’d choose the Start+ over a hot-tip pen. 3Doodler designs it for ages six and up, with no exposed hot parts and a special low-temperature plastic. It runs from a rechargeable battery, so a child can draw without a cord pulling behind their hand.

At eight, start together with a short, flat project, such as tracing a butterfly. Check that your child can grip the pen, stop the plastic feed and wait before lifting the shape. At ten, the same pen can still be a good choice for more involved designs. Being older doesn’t necessarily mean they’re ready to handle a hot nozzle.

For a 12-year-old, I’d still start here. The current Flow manual specifies 14+, despite older buying guides suggesting it for younger children. A 13-year-old teen can also use the Start+; for teens aged 14 and older, consider the Flow if they can consistently keep fingers away from the tip and follow its operating instructions. Stay involved during setup and early projects.

The Start+’s drawback is patience. Earlier hands-on comparisons found its plastic slower to harden and upright lines harder to make than with hotter pens. That gives children time to shape the warm plastic, but it also means a new line can sag while they wait. Flat shapes that they later join together are a less frustrating starting point than tall freehand towers.

Check which Start+ version you’re buying. The current SPLUS version adds a dedicated reverse button and a maintenance hatch. The older SPLUS-SIOC-DP version is also listed. Earlier child-panel results don’t establish how much faster or more comfortable the updated version is, so I wouldn’t pay extra based on an assumed performance improvement.

Both listed Essentials kits include 72 filament strands, an activity guide and a USB-C charging cable. The older kit explicitly includes a Start+ DoodlePad; the latest kit’s contents list doesn’t. Check the selected kit rather than assuming every box contains the same drawing pad. Neither contents list includes a wall adapter.

Before buying, think about whether your child enjoys patient craft activities. A cooler pen helps with handling, but it won’t make the plastic behave like a marker. If repeated attempts are likely to spoil the fun, start with a supervised session using someone else’s pen before committing to a kit and refills.

SCRIB3D P1: when a cheaper 3D pen makes sense

The SCRIB3D P1 makes sense if you’re an adult trying the hobby and don’t want to spend as much as the Flow costs. You still get adjustable temperature, a speed slider and a continuous feed mode, plus three colors of PLA, a power adapter and a stencil guide. It’s a complete starting kit, though the smaller color selection gives you less variety immediately.

You’re giving up some handling comfort, rather than the basic ability to draw in plastic. The P1’s slider lets you vary the feed, but that doesn’t automatically make it easier to control. Choose it for occasional decorations or experiments; choose the Flow if an easier grip and simpler speed selection matter more to you.

Keep the P1 as an adult recommendation. Its product page says 14+, while the linked manual says adult use only. That conflicting guidance makes it a poor choice for a child’s gift when the Start+ offers a clearly documented alternative.

The MYNT3D Super is another cheaper option if you like MYNT3D’s speed slider but don’t need the Professional’s screen. Changing its temperature involves a small adjustment screw, so it makes more sense if you’ll mostly stick with one material. The Professional costs more but puts temperature adjustments on buttons you can read alongside the display.

Don’t pay more solely because a pen has lots of stars or promises to resist clogs. Owner reports include both early failures and extended use, without enough consistent information to identify a dependable failure rate. A pen that stops feeding could have a blockage, a power problem or a failed component; the symptom alone doesn’t tell you which.

Buy from a seller whose return terms let you assess the pen promptly, and keep your receipt. SCRIB3D offers a one-year limited warranty through its website and approved resellers. A defect warranty isn’t the same as being able to return a working pen you find uncomfortable. That distinction matters more than a large accessory bundle you’ll rarely use.

MYNT3D Professional: more control for drawing and print touch-ups

The MYNT3D Professional, also sold as the MYNT3D PRO, is the option I’d consider when you already know you enjoy drawing with plastic. Its speed slider adjusts the feed gradually, while separate buttons change temperature in one-degree steps from 130°C to 230°C. The display lets you see the setting instead of adjusting by feel.

Those controls are useful when you’re switching between drawing a narrow detail and filling a larger area. An experienced creator reports comfortable repeated use and useful speed control, but that doesn’t establish a precision or endurance advantage over every current rival. Buy it because you want those adjustments, not because “Professional” guarantees professional-looking results.

For printer owners, its support for ordinary 1.75 mm PLA and ABS is useful. You can add decoration, fill a small cosmetic gap or join lightly loaded pieces. Match the plastic to the printed object and stay within the pen’s approved materials. A temperature range alone doesn’t prove that an unfamiliar composite or flexible filament will feed properly.

Plastic “welding” with a pen has limits. A filled seam may look solid without being strong throughout. There isn’t enough evidence from strength tests to call one of these pens the best tool for welding plastic. Keep touch-ups to decorative models and pieces whose failure won’t cause harm. A hand-drawn bead also leaves a raised surface; it won’t automatically restore a smooth printed finish.

MYNT3D sells replacement nozzles, but match the part to your pen’s generation. If you’re claiming under warranty, contact support before opening the pen. Its one-year limited warranty excludes commercial use, so don’t count on that coverage if you’re buying it for paid work.

The more expensive 3Doodler PRO, the 2025 model, adds interchangeable nozzle shapes and specialty materials. A several-week hands-on trial found it useful for patching prints and adding cosplay details, but changing speeds while drawing was awkward. It’s sold out on 3Doodler’s US site, so it isn’t a main recommendation here. Don’t substitute an older PRO+ kit: it uses a different refill system.

For longer sessions, follow your exact pen’s care instructions. More controls don’t establish all-day endurance. For example, the current Flow manual recommends a 30-minute rest after two hours of continuous use; that interval shouldn’t be treated as a rule for every pen.

Choose the right refills and drawing surface for your 3D pen

Buy refills by plastic type, diameter and pen compatibility, not just color. Start+ takes proprietary 2.5 mm Eco-Filament strands. Ordinary 1.75 mm printer filament won’t substitute for them, and the Start+ refills don’t belong in the Flow. The short strands also mean stopping to reload more often than with a longer coil.

The Flow takes approved 1.75 mm filament in small spools. Its broader compatibility wording on the sales page doesn’t cancel the manual’s refill restrictions. The P1 supports 1.75 mm PLA and ABS, but its manual likewise specifies approved filament. MYNT3D’s Professional manual specifies 1.75 mm PLA and ABS; its warranty excludes incompatible materials rather than requiring every refill to carry the MYNT3D name.

For lots of practice, that MYNT3D refill flexibility can matter more than the initial kit. You can compare compatible coils or printer spools instead of being limited to one brand’s small packs. Leave room in your budget for replacement plastic: failed attempts and clearing out an old color use material too.

For your first Flow project, ordinary paper is a manufacturer-supported surface. Its manual has you trace a connected name, let it cool, then bend the paper to release it. For repeat tracing, choose a drawing pad intended for your pen and plastic. The Start+ DoodlePad is only for Start Eco-Filament; don’t put a hotter pen on it. MYNT3D offers a silicone DesignPad for shapes and a separate FreePad for tracing.

You don’t need a supposedly universal “best” surface. You need one that holds the first line, releases the cooled shape and suits the material. Avoid assuming a random clear plastic sheet will do all three.

Set up in a well-ventilated space and keep hot tips away from fingers and furniture. Low odor doesn’t prove that heating plastic produces no emissions. Use the supplied power adapter where provided, follow the pen’s shutdown instructions and let it cool before putting it away.