Aluminum profile and alu plate 1500mm x 600mm x 150mm working area, first cnc.

[pierantoine]

Would only use 2:1 ratio with 20mm pitch. If done with 10mm pitch the speed will be too low for router.

for info i have nema 24 4nm steppers from cnc4u,
This is my first router it will be used for multicut materials (aluminium, wood, polycarbonate, etc...) and i'm looking for the best resolution before speed, but on the other end i understand that for some materials.. a fast feedrate could be need, so maybe an rm2010 could be an intermediate solution...

1 - we always see Z axis with rm1605, i assume with 1:1 or another ratio ?
2 - For my long axis to get a 1400mm travel i could use a 1550mm rm2010 with an 1:1 ratio but will it work correctly ? (whipping...)
if it wont work wich length would you use maximum ?
3 - If using RM2020 for cutting aluminium do you think i can have a good resolution with a pulley change to something like 4:1

Many thanks for your help..