I am working on a new version of my CNC v3.2 that will be displayed on the stand of Siemens on the Maker Faire in Berlin on May 25. to 27, 2018. Siemens sponsors the development of this machine that is powered by a SIMATIC IOT2020 (Siemens product page). That industrial grade board runs Yocto Linux and has the pin layout of an Arduino Uno, so it's no big deal to implement the IOT2020 in a project like that.

Most of the frame of the new version is now made of chipboard so that the mechanics becomes cheaper and more easy to build. I am using bipolar stepper motors with a4988 driver boards to give people another option to control my CNC v3.2 (a request I got a couple of times). Time will show if the wooden frame is sturdy enough for good results such as with my CNC v3.2.1. If you come to Berlin, you can have a look at this new prototype and see it running.