First steel diy CNC router build

[JAZZCNC]

It might be stupid question, but what do you mean with "digital drives"?
I think you convinced me, so I am going to redesign it for twin ballscrew drive then.
Any advice where to buy timing belt and pulleys?

No not Stupid question at all.! . . . Digital drives are newer breed of drive that use advanced alogrithams and techniques for working which results in better smoother performance. Older drives used anolgue technolgy and where restricted or lacked advanced features for dealing with issues like Resonance.
Digital drives are much better for this resonance handling alone and the better drives often allow fine tuning thru software if problems do arise but in general they just give smoother running motors and often allow higher speeds.

I use my local bearing supplier but these guys seem ok Timing Pulleys and they will machine them for you at a cost.!

You want HTD 5mm pitch and 15mm. Don't go to small on the pulleys but at same time don't go to large, I use between 18-20T depending if I apply a ratio or not. 2:1 I would use 18/36T.