Online brick maker for 3D printing
The Jarvis 3DP brick maker is a brick editor in your browser: build your model out of bricks and download parts that fit real Lego. Studs and tubes are sized for a real clutch, and the export is ready for home 3D printers.
3D printing Lego-compatible bricks
With a 3D printer you can make bricks that sit on real Lego, such as a piece that is missing from your box or a large build with a shape of your own. The main challenge is the exact size of the studs and tubes, and the brick maker takes care of that for you.
How the brick maker works
The tool runs in your browser with nothing to install:
- Place bricks side by side and on top of each other on the grid to build your model.
- The brick dimensions are worked out to click onto real Lego.
- Export the parts for a home printer.
- Print the parts and snap them together.
Before printing many parts, test one and check that its clutch suits your bricks.
Material, accuracy and size
PLA or PETG with a layer height of 0.12 to 0.2 mm suits bricks. Because the clutch depends on accuracy to a few tenths of a millimetre, filament shrinkage and a well-calibrated printer matter, and a test piece helps you find the right settings.
The brick size follows the standard Lego grid, and the size of the whole build depends on your printer’s bed.
Who is it for?
It is for children and adults who love building, makers of custom projects and decor, workshop teachers, and 3D printer owners who want to make the parts they cannot find.
Frequently asked questions
Can you 3D print Lego bricks?
Yes. The brick maker builds bricks whose studs and tubes are sized to clutch real Lego, and they print on a home printer.
Do I need to install software?
No. The brick editor opens in your browser and you build the model there.
How tight is the fit?
It depends on your printer and filament settings. Print one test piece before the full run and tune accuracy or flow if needed.
Which filament should I use?
Both PLA and PETG work. PLA prints more easily, and PETG gives a little more flex for the clutch.
What if I do not have a printer?
Send the export through the custom request form and we will give you a price and a print time.
A brick editor in the browser: build a model and download parts that fit real LEGO.
Our tools
- Make a lithophane from a photo: Turns a photo into a thin plate that shows the picture only when light shines through it.
- Make string art from a photo: Turns a photo into a string-art pattern: the ordered list of nails that rebuilds the image with a single thread.
- Turn a map into a 3D printable model: Turns any area of a real map into a printable 3D model with buildings, streets and terrain.
- Make a silicone mould from a 3D model: Turns any 3D model into a printable two-part mould, with pins, a pour channel and vents.
- Online brick maker for 3D printing: A brick editor in the browser: build a model and download parts that fit real LEGO.
- Make a custom drawer organizer: Builds a custom insert for a drawer, shelf or toolbox from its inner size and the items you store.
- Make a shadow lamp from an image: A box with a lamp inside that casts the image you choose as a shadow on the wall.
- Make a printable lucky egg: Choose the egg size, the figure hidden inside and the egg type, and get the print files.
- Make a layered 3D lamp: A lamp of flat layers stacked one behind another that read together as a 3D scene.
- Make a miniature cubic room: A small printable model of a room, with simple furniture inside.
- Turn a Minecraft map into a 3D print: Turns a Minecraft map you upload into a printable 3D model.
- Turn a game map into a 3D print: Turns a selected area of a well-known game’s map into a printable 3D model.