How to Use a 3D Pen — Step-by-Step Beginner's Guide for Kids

Written by Happy Kid TeamApril 27, 2026

Plug your 3D pen into power, wait for the light to turn green (~30-60 seconds), push a 5m strand of filament into the back, press the load button, and start drawing. The first project most kids try is a flat shape on paper — a heart, star, or simple flower — which they then peel off and admire.

This guide is written for kids ages 5+ and the parents helping them. We've split it into the absolute basics first, then more advanced tips. If your child has just unboxed their first 3D pen, this is the right place to start.

What you'll need

Before you turn the pen on, get these ready:

  1. The 3D pen (corded or cordless)
  2. Filament strands — typically 5m long, looks like coloured plastic spaghetti
  3. USB power source — wall charger, power bank, or computer USB port (corded pen)
  4. Drawing surface — paper, the included PVC drawing board, or a stencil template
  5. A flat table — kids should sit at a table for the first sessions, not on the floor

Optional but recommended:
- Stencils (printed or store-bought) to give kids ideas on what to draw
- Finger stalls (tiny heat-resistant thimbles) — included with our PLA pens; useful for hot-tip pens
- A cleaning cloth for tip wipe-down

Step-by-step: your first 3D pen drawing

Step 1: Plug in the pen

Corded pen: Connect the included USB cable to the pen's mini-USB port (usually on the back). Plug the other end into a USB wall charger, computer, or power bank rated 5V / 2A.

Cordless pen: If it's the first use, charge fully (about 90 minutes for our Cordless 3D Pen). Once the indicator light shows full charge, you're ready.

Step 2: Switch the pen on and select mode

For low-temperature PCL pens, there's usually one power button — press once and the heating starts.

For PLA pens with LCD display, there are typically two settings to choose:
- Mode: PLA (175–195°C) for most filament, or ABS (200–220°C) for advanced
- Speed: S-1 (slow) for fine detail, S-2 (medium) for general use, S-3 (fast) for filling large areas

Beginners should always start on the slowest speed setting. Faster speeds use more filament and require steadier hands.

Step 3: Wait for the heating indicator

Most 3D pens have an LED that's red while heating and green when ready (or shows the temperature on the LCD).

Heating time: about 30-60 seconds. Don't try to load filament until the green light is on — pushing filament in too early can jam the pen.

Step 4: Insert a 5m filament strand

Pick any colour. Push the end of the strand into the filament input hole at the back of the pen (not the tip!). Push gently until you feel resistance — the pen's internal feed mechanism will grab it.

Step 5: Press the load (or "extrude") button

Most 3D pens have a button labelled with an upward arrow ▲ or just "load." Hold it down for 3-5 seconds. You should see filament come out of the front nozzle within 10-15 seconds.

If nothing comes out:
- Check the pen has reached operating temperature (green light)
- Check the filament is the right material for your pen (PCL filament for PCL pens, PLA for PLA pens)
- Try pushing the filament strand in a bit further

Step 6: Hold the pen like a crayon and start drawing

Hold the pen like you would a thick marker — between thumb and first two fingers, with the warm/hot tip pointing down at the paper.

For a first drawing, try this:
1. Draw a flat shape on paper. Start with something simple — a heart, star, or square outline. Move the pen slowly, in a continuous line.
2. Watch the filament cool. Within 1-2 seconds, the line you've drawn will harden in place.
3. Once it's solid, peel it off the paper. It should release cleanly. Now you have a flat 3D-printed shape.

Step 7: Stop drawing — press the unload button

When you're done with a colour, press the unload (downward arrow ▼) button to retract the filament back out of the pen. This is important — leaving filament inside the pen while it cools can cause clogs.

If the filament won't release, gently pull it out by hand while pressing the unload button.

Switching to a different colour

Here's a sequence kids will use constantly:

  1. Press unload to remove the current colour
  2. Once the strand has been ejected, pull it out gently
  3. Push the new colour strand into the input hole
  4. Press load until the new colour starts coming out the nozzle (you'll see the old colour briefly mix with the new — draw a small "test scribble" on scrap paper to flush it)
  5. Continue drawing with the new colour

Pro tip: Plan ahead. If you know your project needs only 3 colours, lay out those 3 strands within reach so swapping is fast.

What to make first

The hardest part of starting with a 3D pen isn't the technique — it's coming up with what to draw. For kids' first 3 sessions, we recommend:

Session 1: Trace a shape on paper.
Draw a heart, star, or smiley face directly on plain paper. Peel it off. Done. This builds confidence that the pen works and they can use it.

Session 2: Build a 3D house.
Draw 4 walls (rectangles), a roof (triangle), and a door (small square) as flat pieces. Peel them off, stick them together at the edges with the pen tip (just touch the joins with the warm tip and add a tiny line of filament to bond them). Five minutes — first 3D model done.

Session 3: Try a stencil.
Stencils are pre-printed shapes (animals, flowers, cartoon characters) for kids to trace. Use the stencils included in your bundle, or download free ones online (search "free 3D pen stencils PDF"). Tracing builds technique without the pressure of inventing a design.

For more ideas across skill levels, see our 30 Creative 3D Pen Project Ideas guide.

Tips for parents

Sit with your child for the first 3 sessions. Even with a kid-safe PCL pen, kids can do unexpected things (touch the tip out of curiosity, leave the pen face-down on a sofa, try to load the filament backwards). Three sessions of supervision usually establishes the muscle memory and habits they need to use it independently.

Set a "pen home" rule. When the pen isn't being held, it goes back in the pen holder (included in our premium kits) — never face-down on a couch, bed, or carpet. This single rule prevents most accidents.

Lay out a plastic placemat. Stray filament drips can stick to wooden tables briefly (peels off, but ugly). A cheap silicone or plastic placemat protects the table.

Don't let kids draw on themselves or pets. This sounds obvious but happens — even with low-temp PCL, drawing on skin can sting and the bond is hard to remove. Make it a clear rule from session 1.

Check the temperature setting matches the filament. PLA filament in a PLA pen, PCL in a PCL pen. Mixing them damages the pen. See our PCL vs PLA filament guide for details.

Common first-time mistakes (and how to fix them)

Mistake What happens Fix
Pushing filament in before the pen is hot enough Filament jams inside the pen Wait for the green light or LCD ready signal
Drawing too fast Lines come out thin and break Slow down — 1cm per second is a good start
Pen tip touches paper Filament sticks to nozzle, drags Hold the pen tip 1-2mm above the paper
Trying to load a different colour without unloading first Both colours mix in the pen, hard to clean Always press unload first, wait for old colour to eject
Leaving the pen heated and idle for an hour Filament softens and jams the feed Power off the pen between drawings, even short breaks

Frequently asked questions

Do 3D pens need to be plugged in to work?

Most 3D pens use a USB power source (wall charger, computer, power bank). Some — like our Cordless 3D Pen — have a built-in rechargeable battery and can run cord-free for 1-2 hours per charge. Battery-only "AA cell" 3D pens exist but tend to underpower the heating element and aren't recommended.

How hot does a 3D pen get?

Low-temperature PCL pens reach 60-100°C at the nozzle — about the temperature of a hot cup of tea. High-temperature PLA pens reach 175-220°C at the nozzle — too hot to touch. The pen body stays cool to hold in both cases.

Why does the filament come out lumpy?

Three common causes:
1. You're drawing too slowly — filament builds up at the tip
2. Speed setting is too fast — try the slowest setting first
3. Filament moisture — old filament that's been in humid air absorbs water and bubbles when heated. Switch to a fresh strand

How do I switch from PCL to PLA filament?

You can't — at least not in the same pen. PCL pens only heat to 100°C (PLA needs 175°C+); PLA pens reach 220°C (which would burn PCL). If you want to use both materials, you need two separate pens.

My pen won't push the filament out

In order: (1) is the green light/temperature ready? (2) is the filament strand correctly seated in the back input hole? (3) is the filament 1.75mm diameter — too thick won't fit, too thin slips? (4) try pressing unload, gently pull the filament out, and re-load. If still stuck, the nozzle may have residue from previous use — see our 3D pen troubleshooting guide.

How long does a 5m filament strand last?

Roughly 15-25 minutes of continuous drawing. A typical kids' project (a flat shape, peeled and assembled into a small 3D model) uses 1-2 metres — so one 5m strand handles 2-4 small projects.

What's the best surface to draw on?

In order of preference:
1. The included PVC drawing board (cleanest release)
2. Plain printer paper (easy and disposable; rip the paper away from the back of your design)
3. A stencil template (printed paper with a design to trace)

Avoid: glossy/coated paper (filament won't stick), fabric or carpet (very hard to remove), wooden surfaces (light marking possible).

Can my child draw freely in mid-air?

Yes, but it takes practice. Most kids start by drawing flat shapes on paper, peeling them off, and stacking/joining flat pieces into 3D models. Drawing directly upward in 3D ("3D doodling") works once the technique is mastered — usually after 5-10 sessions of flat drawing.

Why is the pen smoking?

If you're using PCL filament in a PLA pen (wrong combination), the filament will overheat and char. Stop immediately, power off, unload the filament, and switch to the correct type. Light-coloured residue smoke from a fresh, clean PLA pen is normal during the first 1-2 minutes of first use as factory residue burns off.

What's next?

Once your child is comfortable with the basics:

Last updated: 27 April 2026.