Thanks Boyan,

We have tried to make a single (in-expensive) kit that users/makers can easily build... then choose what "tool" ( eg. 3D printer extruder, Laser or cheap dremel style CNC ) they have to make more/another machine :)
I've seen so many electronics/hotend/heatbed?laser/CNC kits out there.
I think maybe the solution is to just supply a larger and "sturdier" hardware solution with nothing "custom" and let the users work out what they want to put in there.