3D printing for Maltese schools: what a classroom uses

Schools come to 3D printing from two directions. Some have bought a printer and are working out what to do with it. Others have a specific problem — a missing piece, a resource that does not exist, thirty of something the supplier sells in packs of four hundred — and want to know whether printing can solve it.

This is mostly about the second kind, because it is the more common, and because the answer is often yes.

What do schools actually get printed?

Things that are hard to buy in the right quantity or the right form:

• Manipulatives sized for small hands — counters, fraction pieces, shape sets — in class-size batches rather than pallet quantities
• Geometric solids for maths, including the awkward ones nobody stocks
• Models of things a textbook shows flat — molecules, cells, terrain, historical buildings, the cross-section of an engine
• Replacement pieces for expensive kits that lost one part, which otherwise makes the whole kit unusable
• Name tags, tray labels and pegs for a whole class, each one different at no real extra cost
• Prizes and sports-day pieces that say the school's name and the year
• Accessibility aids — tactile versions of diagrams, grips, holders shaped for a particular student

The common thread: either nobody makes it, or nobody makes it in thirty.

Should a school buy its own printer instead?

Sometimes. A printer in a classroom is a good teaching tool — students learn more from watching a print fail than from reading about it. But owning one and relying on it for resources are different things.

A classroom printer is slow, needs someone who knows it, and is busy with student projects. For thirty identical pieces needed by Monday, or anything that must be durable, it is usually quicker and cheaper to have them made. For teaching the process itself, a workshop is the gentler start before buying equipment.

Which material for classroom use?

It matters more than the printing.

PLA is rigid and shows fine detail — good for display models and shape sets, less good for anything dropped daily, because it is brittle under repeated impact.

PETG takes knocks far better and is the usual choice for anything handled constantly.

TPU flexes rather than snapping, which makes it effectively unbreakable in a classroom — the right answer for fidget pieces and anything likely to be bent.

Longer comparison in how strong a 3D printed part is.

What about safety?

Two rules, and both are design decisions made before anything is printed.

Choking hazard. Anything for children under three is designed above the small-parts threshold with no detachable components. A brief that cannot meet that gets declined rather than printed with a warning label.

Toy or teaching aid? Anything intended for play by children under 14 falls under the EU Toy Safety Directive (2009/48/EC), which requires conformity assessment before a CE mark can be applied. Teaching aids for supervised classroom use, prizes and keepsakes may fall outside it. That distinction is agreed at the start, based on how the item is actually used — the reasoning is set out on our toys and learning page.

How do schools usually order?

Most orders start with a sample — one piece to check size, feel and colour in a real classroom — and then the class set. Personalisation such as a name on each piece adds design time once, not per piece, because printing has no tooling.

Timing is the thing to plan around. Orders tend to cluster before the start of the school year and before prize days, so a few weeks of notice makes a real difference.

What to send

• What the item is for, and the age group
• How many
• A photo, sketch or description — or the broken original, if it is a replacement
• When it is needed