A 3D printer can sit in the corner of a classroom printing little plastic trinkets, or it can change how students think about design. The difference is almost always the projects. The best ones are small, quick to print, and built to be tested — so students find out what's wrong with their design and fix it.
Here are project ideas that work from upper primary through to Year 10, along with the practical habits that keep a class of thirty prints moving.
Before the first project
- Keep prints small. A class of thirty designs on one printer is a queue. Projects that fit in a few square centimetres and print in well under an hour let every student see their result in the same week.
- Teach the slicer early. Students should see how infill, supports and layer height change print time, so they can make their own trade-offs.
- Measure before you design. Callipers or a ruler turn a vague idea into a design that fits something real.
- Plan for failure. A print that doesn't fit is the lesson, not a problem. Build a second print into the timeline.
Years 5–6: first designs
Name tag or bag tag
The classic first project, for good reason. Students learn to place shapes, add raised text and join objects in a block-based CAD tool. Keep the tag thin so it prints quickly, and challenge students to make the text readable at a small size.
Game pieces for a class board game
Groups design a simple board game, then model the counters. It introduces scale — a counter has to fit a square — and gives everyone a reason to check their measurements.
A cable or pencil holder
Students design something to solve a small problem on their own desk. It's the first step from "making a shape" to "designing for a purpose".
At this stage, the goal is confidence with the tools rather than perfect results. Let students print, see how their on-screen design translates into a real object, and talk about what surprised them. Those conversations about size, thickness and detail set up the measuring and testing that come in later years.
Years 7–8: designing to fit
A device stand
Students measure a phone or tablet and design a stand that holds it at a useful angle. The first version rarely fits, which is exactly the point: they learn about clearance and revise.
A snap-fit box
A small box with a lid that clicks shut teaches tolerances better than any explanation. Too tight and the lid won't close; too loose and it falls off. Have students print a short test strip of different gaps before committing to the full design.
Structures under load
Print small bridge or beam designs, then test them with weights. Students compare infill, shape and orientation, and connect design choices to the forces they learn about in science.
Years 9–10: design briefs with real users
Assistive designs
Students work from a brief: a grip that makes a pen easier to hold, a key turner, a tap lever. They interview a user, prototype, test and revise. It's the closest thing to real product design, and it gives the project a purpose beyond the printer.
Mechanisms
Gears, hinges and simple linkages show how parts interact. Printing parts separately and assembling them makes tolerances and alignment impossible to ignore.
Product prototypes
For senior design and technology, students take a product idea through several printed iterations, documenting what changed and why. Printers with dual extrusion, such as the UltiMaker S series, let students combine two materials or colours in a single print, which suits this kind of work.
Keeping a class of prints moving
- Run a print queue. A shared list of approved files, in order, stops the printer becoming a free-for-all.
- Check files before they print. A two-minute look in the slicer catches designs that will fail or take hours.
- Use a camera if you have one. Printers with a built-in camera let you check a print from your desk, and time-lapses make a great end-of-unit reflection.
- Budget for filament. PLA is the everyday classroom material, and a class goes through it faster than expected. Keep a spare roll of filament on the shelf.
Choosing a printer for these projects
For classroom work, an enclosed printer is the sensible default: it keeps hands away from hot parts and keeps draughts off the print. Filtration matters too in an occupied room.
- FlashForge Adventurer 5M PRO — enclosed, with HEPA and activated-carbon filtration, auto-levelling and a built-in camera. A practical all-rounder for upper primary and lower secondary.
- MakerBot SKETCH Sprint — designed for schools, with a PIN lock, an enclosed spool and more than 600 lesson plans plus teacher training.
- UltiMaker S series — dual extrusion and a wide range of materials for senior design, VET and TAFE.
You can compare the full range of 3d printers for schools, or tell us your year levels and space and we'll recommend a fit. Schools can order on a purchase order.