Interactive 3D building instructions in the browser

The customer scans the QR code on the box and builds the model step by step on their phone, with no app to install. We built this for our own sets as BrickPlay and can build a player like it for your products.

Tell us about your project What the player does

What you get

What the player does

Opens from a QR code

A link or a QR code on the box opens the instructions straight in the browser.

Works from your model files

BrickPlay reads LDraw files (.ldr, .mpd) and BrickLink Studio files (.io). Upload a file and get a link.

A route through the build

The overview shows chapters as stops on a route and remembers where the person stopped, so they can carry on later.

Clear steps

Parts for each step with quantities, a tap to enlarge a part, highlighted new parts and arrows showing how each one fits.

Your brand

A set can open in a company’s colours, with its logo on the splash screen and the set picture on the loading card.

Precise camera control

A separate tool sets the camera and splits steps by hand, so a difficult assembly is shown from the right side.

Online booklet

A paper-like version of the same steps for people who prefer to scroll or print.

Access and API

Personal access keys for each team member, version history and a REST API for uploading from scripts.

What we solved along the way

Instructions run on the customer’s own phone, often an old one, so most of the work goes into keeping them smooth.

Parts are merged for rendering: an overview of a 1,264-part model takes only 43 draw calls.
On weaker phones the player switches to a lighter drawing mode automatically.
A new file can replace the old one under the same link, so the QR code already printed on boxes keeps working.
The language follows the browser, and the person can change it.
A box approval page shows the client the box in 3D and its flat layout with die lines.

Where it fits

Custom brick sets and corporate gift sets.
Kit makers who want to reduce printed manuals or update them after release.
Brands that want a branded experience after the box is opened.
Other assembled products, once the model format is settled.

FAQ

Questions we often get

Does the customer need to install an app?

No. It runs in the phone’s browser. An internet connection is needed, because the model and its part geometry load online.

Which file formats do you support?

BrickPlay works with LDraw (.ldr, .mpd) and BrickLink Studio (.io). For other products such as furniture or model kits, the steps, camera and arrows carry over, but we need to agree the model format first.

Can I put it on my own website?

Yes. The player can be embedded through an iframe or opened from a link.

What if we find a mistake after boxes are printed?

Upload a corrected file under the same link. The QR code stays the same, and earlier versions are kept.

Can I use BrickPlay itself or do I get my own player?

Both are possible. We can publish your models with your branding, or build a separate player if you need your own features. Write to us and we will suggest which fits.

Related services

Custom brick set configuratorSet builders, PDF quotes, box design and client approval pages.3D product configurator developmentReal-time 3D that stays stable on phones, with a 2D fallback.Minifigure configurator developmentFaces, hair, prints and packaging, with print files at the end.

Contact

What should we build for you?

A few lines are enough. We'll reply with what we can do and how we'd approach it.

Prefer email? work@kastomiko.com