MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Yes, the Pololu driver and Carrier Board I believe are open source hardware. They are pretty commonly used on RepRap printers, I believe. There are instructions out there for building one without an, "official" carrier board (if that's what you would call it). I got the carrier board kit and the pololu driver from http://MakerGear.comMakerGear.com. Which is based in America, so that is not much help to you. I guarantee there are suppliers in the EU.
This is where I got the instructions for putting together this particular carrier board:
As for etching a board or something like that, I have no idea how to do all that. So I wouldn't know where the first place to look would be. As for using the Pololu Stepper
driver in a MakerBot... they work great! 1/16th Microstepping makes for much quieter operation and my ToM seems to just work a little better with it. The major benefit is you put it together yourself, so you know what kind of quality to expect from it. I was having problems with my Y axis on the M
akerBot Stepper Drivers. I suspect it is bad soldering joints or something.