Guys,
I am planning to build my first 4 axis hot wire cutting CNC. Have seen several DIY videos, and threads for the builds. My machine size would be approx 4ft 2 ft.
Confused as to whether I should use threaded rod, lead screw or belt for the drive assembly.
Many people have said that threaded rod wobbles and has back lash . The lead screw nut and screws themselves cost a bit, perhaps as much as belt drives.

The downside on belt drive seems to be the added complexity, thats all

Would be really helpful if experienced users can 'guide' me here !

Thanks !