The ball-screws help, esp. in terms of rigidity and also consistency, but folks have done some wonderfully intricate projects on the belt-driven machines — it just takes a bit longer and possibly requires a slightly lighter touch for the tool paths:
The ball-screws help, esp. in terms of rigidity and also consistency, but folks have done some wonderfully intricate projects on the belt-driven machines — it just takes a bit longer and possibly requires a slightly lighter touch for the tool paths: