Filament Deposition Modeling (FDM) is known to be the flagship technology for additive manufacturing. Despite being the most well adopted additive technology, FDM is not without compromise: most notably print speed.
FDM 3D printing utilizes a print head to heat up thermoplastic filaments and extrude that molten filament along a set tool path. This naturally results in a long time to build a part especially in comparison to other manufacturing technologies. Many adopters of this technology use it for its strengths such as prototyping, tooling and low batch production runs. The cost and strong materials available make it a good option for industrial application printing.
A known issue with FDM is the correlation between higher Z height, and longer print times – with the F900 being so large, print times can rise with the standard slice height selection; the T40 lets us print tall parts quickly, without sacrificing any XY accuracy. In one recent example, our AMS team cut a print time from 14 days to 6 by switching from T20 to T40.
These new tips include the T40A (ULTEM 9085) and T40C (Nylon 12CF) and aims to reduce print times with a larger internal diameter and a larger available slice height (0.020”). Although the larger slice height will lead to a more noticeable layer line, Stratasys claims that these new T40 tips will be able to print parts an average of 1.7 times faster than the conventional T20C tip with a 0.010” slice height. Furthermore, on models using a solid infill, this new tip will decrease the print time by up to 2.6 times.
The wider tip also slices with two contours as opposed to simply one. This paired with the wider diameter will result being stiffer and more impact resistant than two contours with the thinner T20 tip. This tip really stands out from the traditional tips when printing large bulky parts especially tooling and fixturing components where layer lines may not be as big of an issue. To further this point, since the slice height with this tip is larger than the T20 tip, taller parts in the z axis should see significant increases to their overall print times. Reduce your time to part with these new T40 tips.