This machine build is achievable. The X axis is a rodless pneumatic reader, the Z axis is controlled by stepper/servo , vertical axis is simple I think . The print head is available through Epson which prints best guess 3 to 4 cm above media. The ink is Acentone vinyl resin , uses Photoshop . Here's were I get lost how to connect printer head driver, photo shop etc. I invite active comments . Go to LAC ARTROBO on you tube or LAC. Corporation on internet. Cheers Lozza from OZ
A very interesting and ambitious project Lozza50 As you say, it is definitely achievable but may require quite a bit of research and experimentation to get the print head software and control sorted. This should keep everybody's brains active for a while Tweakie.