Mirobot is 100% Open Source
Mirobot has been designed to be built and modified by you. All of its part designs are available under open-source licences so you can hack away to your heart's content.
The chassis is open hardware
You can download the designs for the chassis from Github and get them laser cut yourself. The files are vectors and have been drawn in Illustrator.
The circuit board is open hardware
You can download the designs for the PCB from Github and get them made yourself. The PCBs have been designed in Eagle CAD and fit within the specifications allowed in the free version.
The firmware is open source
The firmware is all developed using the Arduino IDE and makes use of several open source libraries. The sketch is available from Github and comes in a few different flavours depending on exactly how you want to use Mirobot.
The software is open source