![]() He attempted to plunge the raw end through the marker, but it stopped about one quarter of the way in. I was happy to see the drill bit completely dowsed in ink.”īeebe then completely removed the felt tip from the marker, and then snipped off a piece of 1.75mm natural PLA filament. As I plunged in to the marker’s ink cartridge, after piercing its shell, I removed the drill bit. The housing was already made and even pre-aligned for drilling! I immediately grabbed my drill and my 5/64” drill bit and drilled away. “I looked at the butt of the marker and thought, ‘That divot is about the same diameter as the filament I am using.’ BAM, it hit me. “As I was pondering these ideas, I was holding a Sharpie marker in my hand,” explained Beebe. It was also very difficult to ensure that all the markers remained in contact with the filament 100% of the time, so Beebe had to come up with a design that worked. He also experimented with a 4-marker design, but that even consumed more printing space above the extruder, making the Z-Axis clearance very minimal. It also consumed a large amount of printing area above the extruder on his RepRap Prusa Mendel. It worked decently, but the end result gave his printed objects a distinct colored tint, that he was not satisfied with. He first tried a design that consisted of two markers. The ‘Ultimate Filament Colorer’ can be installed directly before the hot-end / extruder of a printer, which allows it to also function as a filament cleaner, since the ink cartridge of the Sharpie marker consists of a fiber/foam type material which catches dust particles quite nicely.”īeebe, has tried three different methods of coloring his filament. “The filament is completely coated by the ink inside the Sharpie ink cartridge. “The ‘Ultimate Filament Colorer’ works by feeding 1.75mm filament directly through the ink cartridge of a Sharpie marker of anyone’s favorite color,” explained Mathew Beebe to in an interview. Beebe’s design seems to work quite well though. This is an idea that several other designers have attempted in the past, with a varying degree of success. ![]() The “Ultimate Filament Colorer” takes the idea of using a Sharpie marker to color filament before it is extruded onto the print bed. The name may be a bit over the top, but the idea works, and can be replicated quite easily. He calls his design, the “Ultimate Filament Colorer”. One Nebraskan man, by the name of Mathew Beebe, has come up with a rather simple and reliable solution. It just isn’t feasible to have multiple rolls of filament sitting around your home. There are dozens upon dozens of different colors of filament that you may need at any given time. One problem that a lot of people seem to have when needing to 3D print an item on an FDM printer, is the fact that purchasing and storing multiple rolls of filament can be both expensive, and annoying.
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