I think I have done all to my Ender 3 that I can do without replacing frame pieces to extend it.
I have actually decided to build a second printer...
Found this CoreXY printer that has a decent design and good following.
BLV MGN CubeWill be powered by a Duet 3 and Rasperry Pi.
I have the a 320mm bed to go in it, but I have the files to do an even larger bed (400mm). The frame/rails I am using will allow for a Z of 595 mm.
Doing the triple Z thing to allow for 3 point bed leveling.
Got most of the parts in. Will be starting the build in the next month or so.
Eric