I think I'm about to finally order a CNC build kit and stuck on the differences between the different screw drive options. Looking at the 40" x 40" LEAD Machine, Sphinx 20" x 40", and the WorkBee 40" x 40". The 20" on the smaller axis is a little small but may just work for most projects I have in mind. But really looking for what are some advantages and disadvantages to these machine current build kits. I do want to maximize my material cutting height, but most work will be multi-material signage, and part cutting. I will also be adding a diode laser at some point.