I am working with a group of people to form a makerspace and we are hoping to get a CNC router operational shortly for demonstrations to attract members. I think I have decided to go with a Workbee but there are a couple of things I would like to change and I'm looking for advice on whether I am thinking right. We want a 1500x1500 to allow for large work pieces but still want good precision. The default belt system worries me a bit and I was thinking about going with either heavier belts or 1/2 acme. Everyone using this will be learning to some extent and it won't be possible to oversee eveyone so I would like to make the machine a little heavier duty. I am also looking at running LinuxCNC as I would like to have a couple of more inputs to work with and the ability to auto square the gantry.