Starting to design out my build, looking for critique

[JAZZCNC]

Hi chrono,

Wouldn't go with ESS as the backup is rubbish and your limited to mach3/4. The uc330eth or 400 are both much better options.

I've not read all your thread but i saw you where struggling regards ballscrews and sizing them. So here's a suggestion which might help that I've built many machines using.
Use 2020 with 2:1 ratio. This gives same speed as 10mm pitch but halfs the screw speed so less chance of whipping screws. It also doubles the torque from motors.
Also very easy to increase velocity if needed by changing ratio.

Next suggestion is to buy drives that accept AC then you only need to buy transformer. That said building toroidal DC psu isn't difficult and don't let anyone tell you different but they are the best type for Cnc machine that moves quickly with high speed directional changes like routers make where drives have to handle dynamo affect of steppers.



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