I appreciate you sending the dimensions it will certainly help seeing a design that works and I will most definitely confirm dimensions on my machine. I'm pretty sure I will be using a 2005 screw and I am concidring a Nema 34 / 1700 oz-in servo but I am open to any suggestions. I will send you a PM.Excellent! I will be envious of your extra Y travel!
I'm happy to share but you will have to confirm they will work for your mill. PM me your email and I will send what I have.
What type of motors will you be using? My Z is driven by a 42 size stepper with a 2005 ball screw and nut so parts were made accordingly.