Thank you George,

I usually buy electronics from ebay and if I need aluminum from Misumi Europe.
My aim is definitely to learn how to make one. I set up a budget around 3500 - 4000 euros.
I was using sketchup before but now I am going to get a grip with fusion 360 for my 3d printing parts.

I will try to design the base looking at others build threads hoping that I will find the answer to my question about the cutting area(width) somewhere in the forum. Then maybe I will get some helpful comments.