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3D cell model: plant and animal cell projects, printed or digital
Build a 3D plant or animal cell for school: which organelles to include, how to model or generate each part, and how to print and label it.
2 min read
Quick answer
How do you make a 3D cell model?
Decide first whether it's a plant cell (box shape, cell wall, large vacuole, chloroplasts) or an animal cell (round, no wall). Make each organelle a separate part so it can be labelled or painted, model or generate the parts, cut the outer cell in half to show the inside, then 3D print it or present it as a digital model.
Plant cell or animal cell?
Get this right first, because markers check it.
Both have: a cell membrane, cytoplasm, a nucleus (with a nucleolus), mitochondria, ribosomes, endoplasmic reticulum (rough and smooth), and a Golgi apparatus.
Plant cells also have: a rigid cell wall outside the membrane, chloroplasts, and one large central vacuole. They are usually drawn as a rounded box.
Animal cells have no cell wall or chloroplasts, usually only small vacuoles, and are drawn as a round or blob shape. Many diagrams also show lysosomes and centrioles.
Check your textbook's list. Courses differ on which organelles they expect.
The trick that makes a great model: a cutaway
Make the outer cell as a shape cut in half, or with a quarter removed, so you can see the organelles inside. A flat cut face also gives the print a stable base.
Making the parts
Simple shapes: Tinkercad
Many organelles are simple shapes. The nucleus is a sphere, a vacuole is a squashed sphere, a chloroplast is a flattened capsule. Build those in Tinkercad, in a browser, for free. Bring AI-made parts into Tinkercad to combine them with the rest.
Detailed parts: AI generation
The fiddly organelles are where AI helps. A mitochondrion with folded inner membranes, the stacked Golgi apparatus or ER sheets are hard to model by hand. Generate each one from a clear textbook-style drawing, one organelle per image, plain background. Draw it yourself if you can, so the work is yours. Kids' drawing to 3D shows how well hand drawings convert.
Vi3W exports OBJ, which Tinkercad and most slicers open.
Printing it
- Print the cell and the organelles separately, then glue or pin them in. Easier to print and easier to paint.
- Size: a cell around 10 to 15 cm across leaves the organelles big enough to see and label. Scale a model for printing.
- Colour: paint each part, or use a multicolour printer: multicolour prints.
- Labels: little flags on pins, or numbers printed into the base with a key.
No printer?
Present it digitally. Export GLB and show it in a free online viewer, where the class can rotate it. View 3D files online. Many slide tools accept 3D models too: 3D models in PowerPoint.
Try it
Draw your mitochondrion and generate it in Vi3W, then print it.
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