My Z axis need to be shorted… at first i was planning to build with big legs, but them understand that 15cm of the Z was enough.
About the platform; my work surface is only an mdf board with 16mm and is far to be perfectly flat. I pretty sure over time and because of the humidity the mdf board will less flat. So i planning to build this aluminium platform that will allow me to have an perfect level. The 2020 extrution bar will allow too to easy secure any type of wood.