UseMTB | Master Tool Box 3D

Free online 3D model generators

Turn your ideas into personalized 3D-printable products. Add your name, logo, text or QR code to ready-made designs, customize them online and download print-ready files. No CAD skills needed.

  • No CAD skills required

    Enter customer details in a simple form.

  • Print-ready STL / 3MF

    Generate a model ready to open in the slicer and print.

  • Made for makers and businesses

    Customize for yourself, a gift or your customers.

Our real Bambu Lab P2S printer with AMS, photographed in our wooden workshop in Joensuu
Our actual printer, not a render.Bambu Lab P2S · Joensuu, Finland

From your idea to a printable product

Choose a design, personalize it online and bring your creation to life with a 3D printer.

1. Choose a design

Pick a ready-made 3D product generator.

2. Make it yours

Add your name, logo, text or QR code online.

3. Download

Generate and save a print-ready 3MF model.

4. Print

Open your file in a slicer and bring your creation to life.

Behind the scenes · Actual photographs

We print the things we build tools for.

Before a generator becomes useful, we have to see what comes off the printer. Here are a few unpolished moments from our own production and experiments.

Explore real projects
Black and yellow Kiska café keychains in a freshly printed batch on the build plate

Real customer batches

Branded keychains, straight from the print bed

Round NFC tag bodies in the middle of a print on our Bambu Lab printer

Work in progress

From a generated model to a physical print

Blue round multicolor keychains being printed in a batch inside our machine

Testing new designs

Multiple pieces printed in one run

Explore our 3D product generators

Choose a ready-made design, make it your own and download a personalized model ready for 3D printing.

A set of real 3D-printed black keychains in different sizes with colorful raised star, circle, square and letter designs

New free generator

Text & Icon Keychain Generator

Type any name or phrase, add Font Awesome icons anywhere, choose the shape and up to four colors, preview the result in 3D and download a print-ready 3MF or STL.

Any textFont Awesome iconsUp to 4 colors3MF + STL
Create Your Keychain
Personalized white and pink Jess Framez spinner keychain with a black rotating logo disc, centered in a hand-held photograph

New · Print in place

Print-in-Place Spinner Keychain Generator

Customize a captured spinner keychain with your logo, optional QR and NFC, and a colored 3MF. Inspect the slice and mechanically test a sample before customer production.

Open Generator
Printed Pub Fever business keychains

Business branding · New

Business Keychain Generator

Create branded 3D-printable keychains for your business. Upload your logo, choose the shape and colors, add optional NFC or QR, then download a multi-color 3MF with editable print settings. Pub Fever is included as a real-world example preset.

Open Generator
Pet ID tag example with name and animal artwork

Try it now

Personalized Pet Tag Generator

Create a 3D-printable pet ID tag with your pet’s name, artwork and a scannable QR profile link. Download a color-ready 3MF.

Open Generator
Company-logo QR keychain example

Working generator

Custom 3D Keychain Generator

Personalize a 3D-printable keychain with your logo and a QR link to your website, menu or review page. Optional NFC pocket.

Open Generator
Metal pet tag engraving design example

New · Metal engraving

Metal Pet Tag Generator

Create engraved stainless steel pet tags with two selectable paw styles and separate front artwork and QR back files.

Open Generator
Tabletop QR review stand example

Working generator

Custom QR Code Stand Generator

Design a two-sided 3D-printable review stand with your logo, QR code and optional NFC and gift-keychain features. Download a color-ready 3MF.

Open Generator

Real makers · Real creations

Made by the community

Explore 3D model previews voluntarily shared by people using our free tools. Every preview is checked before publication.

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Cosmic Moose

Business QR tag

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Sleepy Moose

Business QR tag

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Happy Penguin

Business QR tag

Spinner keychain — voluntarily published MTB model or project example

Spinner keychain

Sleepy Panda

Spinner keychain

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Clever Koala

Business QR tag

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Cosmic Moose

Business QR tag

TAG barbearia — voluntarily published MTB model or project example

TAG barbearia

Jolly Koala

Business QR tag

Business QR tag — voluntarily published MTB model or project example

Business QR tag

Happy Fox

Business QR tag

Explore all community creations
Real products, real printing

First we made it.
Now we’re making it repeatable.

Every new customer brings a different logo, name or link. These are five products we actually printed — and the real customization problems that inspired our product generators.

A full printing plate of black Pub Fever keychains with red borders and white lettering.

B2B ORDER · REPEAT CUSTOMER

Pub Fever

Custom-branded keychains

Our first independent paid bar order was 50 oval keychains. The original design needed manual and AI-assisted refinement; now you can customize its production format in a generator.

The reusable part

The shape stays the same. The business logo, colours and text can change for the next order.

Black circular Kiska café keychains with bright orange raised logos on key rings.

CAFÉ · 50-TAG PILOT

Kiska summer café

Branded NFC & QR touchpoints

We tested 50 branded NFC tags and QR links to help café visitors reach Kiska's review page.

The reusable part

The next café needs its own branding and review-page link, not a new product from scratch.

A rectangular blue-and-white inVest logo keychain held in a person's hand.

DEMONSTRATION PROTOTYPE

inVest Alliance

A company-logo keychain

A physical prototype explores turning company artwork into a branded tag for NFC-based contact sharing.

The reusable part

A different customer can supply a different logo and contact destination for the same basic format.

A round black pet ID tag with a white dog illustration, BELLA in white letters and a yellow outline.

OUR PRODUCT · PET ID

PetPage

Personalised pet identification

The Bella tag shows how a pet's name and a scannable link to an editable online profile can become a useful physical product.

The reusable part

Every pet gets a different name and profile link while the printable tag format remains reusable.

A batch of round black Marjalan Siivous branded keychains with white company lettering and yellow rings.

LOCAL SERVICE BUSINESS

Marjalan Siivous

Business-name & phone tags

Round black-and-yellow keychains put the cleaning company's logo, business name and phone number in one small branded item.

The reusable part

The same format works with another business name, logo and contact number.

Why this matters to sellers

Keep the product. Change the details. Print the next order.

Master Tool Box 3D is turning these repeatable personalization steps into generators, so a new logo, name or destination link does not mean redesigning a product from scratch.

Read how it started

Made for makers, sellers and creative minds

  • Makers & hobbyistsCreate something unique for yourself or a gift without learning complex CAD tools.
  • Etsy sellersPersonalize customer orders faster with a reusable product design.
  • 3D printing businessesTurn customer logos, names and links into printable products without repetitive design work.
  • Brands & local businessesCreate custom tags, QR products and branded accessories for your team or customers.

Products we actually printed

See five printed products from real orders, café pilots and prototypes — and how this experience informs our product generators.

Explore Real Projects

Start creating with free generators

Try our available customizable designs online and download a 3D-printable model. We also share selected free designs with maker communities, including MakerWorld.

Try a Free Generator

Explore our working generators

Behind the printers

Built by a maker who uses the tools himself

Master Tool Box 3D is built in Joensuu, Finland.

Iurii at a table with real printed inVest keychain prototypes

Hi, I’m Iurii.

Iurii Parshukov

Product & Technology

Entrepreneur and software developer working with automation, web products and real 3D-print production.

That photo is me working with physical prototypes. I develop the generators and test what actually comes off the printer.

Real workshop. Real experiments. No stock photography.

Simple pricing for 3D-printing businesses

Free

€0

  • Selected generators
  • Personal use
Try Master Tool Box 3D

Seller

Coming soon

€19/month

  • Commercial use
  • Growing generator library
  • Production-ready downloads

Paid access is coming soon.

Pro

Coming soon

€29/month

  • Everything in Seller
  • Advanced generators
  • Batch / higher-volume tools
  • Priority access

Paid access is coming soon.

Paid plans are not available yet. Commercial rights will apply while a subscription is active.

Growing generator library

Access multiple product generators through one subscription instead of buying individual static models.

AI-assisted development

We use AI to adapt and improve generators faster, so you spend less time on repetitive CAD work.

Built for your workflow

From customer details to print-ready files, every generator is designed around real production steps.

Ready to create your own 3D product?

Choose a free generator, personalize a design and download a model ready for your 3D printer. No CAD experience required.

Try a Free Generator

No CAD skills required.