Let’s do a step back. Since I am a pretty impatient person I started some weeks ago to design a prototype of the machine I want to build, but I realized soon that I have to study more deeply the project I want to do. First of all I don’t think that I can manufacture a precise frame with the tools I own. Moreover the bearings used in this design are a little bit wobbly. Therefore I am thinking to redesign the whole stuff using aluminum extrusion to have a more precise assembly and to get a little more rigidity in the three axes. Let’s see what will came out.