Quote Originally Posted by beebenutz View Post
This method, as stated in the article, was developed to get away from having to print things to attach to the printer. Attaching anything to the extruder begins to diminish Z axis clearance. Having the sharpie in line with the filament allows for ZERO Z axis loss. Sharpies are cheap compared to inkjet cartridges as stated in the article. Sharpies also provide their own enclosures. The cost of inkjet cartridges would defeat the purpose of NOT buying colored filament. Keep the gears spinning FORWARD!
Name brand ink cartridges are incredibly overpriced, generic ink is incredibly cheap, I don't think CaptainObvious was recommending we go out and buy HP ink cartridges. I think coming up with a system to dye / ink the filament would be ideal, it just has to be done right. it can be done before hitting the cold end, so no issue with Z-height.

As for a system that can produce full color prints, an inkjet "TYPE" system could work, but it would be very complicated.