www.twelvepro.com
Prusa i3 standart (the same plastic parts as original Prusa i3 can be used)
Prusa i3 mini (the same plastic parts as original Prusa i3 can be used)
Prusa i3 modified by twelvepro.com
Prusa i3 by Graber - complete laser cut variant, solid frame design can by used for low profile milling.