I don't have rotary table to cut the pulleys :( . Money are sometimes an issue so I went for smaller pitch, cheaper belts and pulleys. On all axis I've got M16x2 lead screws. Nuts I've made myself from 32mm dia steel bar. They are 60mm long with a grease nipple re-drilled to fit 4mm nylon tube for oiling. Very simple, good and cheap solution, with no backlash at all.