The micro:bit is here! Over the last few months the BBC micro:bit - a mini computer designed to teach youngsters how to code - has been delivered to over 800,000 school kids across the UK. Before the end of the year, this amazing device will make its way into the hands of 1 million teenagers. MyMiniFactory is the official 3D printing partner for the BBC micro:bit and as such we thought we'd give our awesome community the opportunity to contribute to this incredible initiative.

Don’t have a micro:bit yet? Dont worry, you can download the micro:bit CAD file from Kitronik’s profile page.

You can also now buy a micro:bit device directly from Kitronik's website.

Check out this useful list of functions the micro:bit can perform.

We want you to come up with 3D printable designs to be used in conjunction with the micro:bit device. Anything goes, as long as your design would make sense when used with a micro:bit. Whether its a simple case, or large project that makes use of multiple devices, we want to see what you've got. The winning design will take away a BQ Witbox2 3D printer for the school of their choice!

A big thank you to BQ, a brand with a heritage in education, 3D printing, telecoms and robotics, who are giving away one of their brand new printers, the Witbox2, as well as 2 of their amazing Zowi Bots!

The best entries submitted will be sent to the BBC, to be potentially featured on the micro:bit website, meaning your design could be used in schools across the UK.

We will also be giving away a free micro:bit to top 30 designs. The micro:bits are not available to the public so this is a unique chance to get your hands on one.

Check out the below designs for inspiration.

Submit your design


We have 30 micro:bits to give away and an incredible Witbox2 3D printer from bq Labs for the school of your choice!


  • Submissions open - 20th May 2016
  • Submissions close - 19th August 2016
  • Voting opens - 2nd Sept 2016
  • Voting closes - 16th Sept 2016


  • If your design is in multiple parts, please make sure you submit all parts (as STLs zipped into a single file) with instructions or diagrams of how they fit together.
  • If you require your part to be printed in special material - such as NinjaFlex, please let us know in the description.
  • You can submit as many entries as you like.
  • This is a global competition and you can enter regardless of your location.

After submission

  • All entries that meet the requirements will be hosted by
  • Designs will go live as soon as they are validated by the MMF team.
  • All STL files will be made available to download for free
  • Ownership of designs will remain with the uploader

Designer resources

Don't know how to code? Don't worry, micro:bit's block code editor works like a jigsaw and is super easy to use. Check out this useful list of functions the micro:bit can perform. Just design something to work with one of these functions, there's no need to program just yet. Below you can find useful product specifications, inspiration and user designs to help you realize your ideas.

Good Luck!

Submit your design