Ty I went with 480mm 20x40 for the Z rails and also plan to use 20x40 for the X. The support rails will be the only 20x20 used so it's sturdy that's for sure lol
Little update using pics Time to cut some leadscrews and design the X Axis carriage Edit Leadscrews installed
Just finished up the last parts, I have the X carriage designed in my nerd just gotta make it up in sketchup and mill it Support plates, and leadscrew end supports
Not yet lol Ramps kit will be here end of the week and I'm still waiting for my E3Dv6 to ship. Also I have no idea what extruder to use. I have seen the bulldog design but would like to use a design that is proven to work. Everything is built except the bed plate for the MK2b and mounting plate for the extruder/hotend. Tried to get some PLA but E3D stock is just hmmm wow!