Ad I said , maybe my perspective is skewed by my life experience I know a few girls with religious background that could fit the description . <| sep |> Link to BCN 3 d Sigma product pagesigmaBasically , the printer is a corexy design with two independed x carriages , which means independent hot ends as well . From what I ' ve seen , read and heard , this approach to dual extrusion works quite well . I think I might model the parts necessary to convert a cbotdbot to have two independent x carriages , I was just wondering what everyone thought about the approach and if it was worthwhile considering the rise of the prusa mk 2 approach . The mk 2 approach also mirrors this approach , The Prometheus Systemsystem , which definitely looks promising . I ' m just not sure which is best . If it seems like the Sigma approach is superior , than I ' ll get to work modeling the conversion components . Just thought I ' d see what people are thinking .