Dual extrusion 3D printers are not as uncommon as they used to be, but there are still a lot of single-extruder machines. [Paul Lang] wanted to refit his printer to take two MK8 extruders, and he documented his experience with a blog post that has a few good tips if you want to try it yourself.
[Paul] used Fusion 360 to design a holder for the extruders that would fit his printer. Since he had accidentally ordered a spool of pink PLA, the whole assembly is shocking pink — not subtle at all. He shares a few design tips about using PLA near the hot areas and making everything fit and level.
The results speak for themselves (see right). [Paul] says he still needs better offset calibration and he isn’t quite happy with the head changeover in the G-code. Still, the resulting prints look pretty good.
[Paul] did you an existing design for the Prusa-style backplate, and your printer might be different anyway. So his post is less of a how-to and more of the steps he took and the difficulties he had to work through. Your hacked printer will probably vary.