Purchasing new parts for new build.

[Clive S]

For my 4' x 8' table I'm planing to use Nema 34 motors with around 12Nm for the x and y axis. Is it overkill to use the same for the Z axis (planing for any future upgrades) or should i go for a nema 23 with around 4Nm?

The motors will be driven by rack and pinion.

What would be the best digital stepper drivers, breakout board and power supplies?

Hi and welcome to the forum. First it might be better to start your own thread and then all the questions will be together. I have seen the vid link you posted and although the machine looks nice it won't be that accurate the gantry is too high and the feed rate looks very slow for cutting MDF. Have a read through some of the build logs. and decide what you want to use the machine for.

Don't buy any stuff until you have it drawn up in cad and are happy with the design. An 8 x 4 machine not designed correctly is a bit like digging a big hole in the workshop floor and filling it with hard earned dosh.

Good luck with the build.