Introducing PooLA Filament: Grass Fiber-Strengthened PLA

We’re most likely all aware of including wooden mud, hemp and carbon fibers to PLA filament, however there are such a lot of different fillers one might add. Through the utterly unrelated latest heatwave in Germany, [Stefan] from CNCKitchen determined to offer a brand new kind of biodegradable filler kind a shot by scooping some freshly dried cow patties off the very picturesque grazing fields close to his place. Within the ensuing video a variety of questions are answered about this ‘PooLA’ that no person was asking, equivalent to whether or not it makes for a superb filler, and whether or not it smells unhealthy whereas printing.

Maybe unsurprisingly to those that have spent any period of time round massive herbivores like cows, cow dung doesn’t odor unhealthy because it’s largely composed of the grass fibers which can be left over after the cow’s a number of stomachs and repeated chewing have executed their factor. As [Stefan] and his colleagues thus came upon was that printing with PooLA smells like printing with grass.

As for the sensible advantages of PooLA, it provides a pleasant coloring, however like different ‘bolstered’ PLA filaments appears to commerce flexibility for stiffness, in order that at ratios of cow dung powder between 5 to twenty% added to the PLA powder the check components would break sooner. Creating the filament was additionally a little bit of a chore, for causes that [Stefan] nonetheless has to determine.

That mentioned, except for the technically unneeded bacterial corpses and different detritus in cow patties, utilizing grass fibers in FDM filament isn’t a loopy concept, and would possibly match proper in there with different fibers.