Summary
at this and other types of nozzle with SLS-printed nozzles.
These printed parts still needed some finishing on the lathe, including drilling the 0.4 mm nozzle hole. The finished nozzles feature a variety of internal geometries, including the aforementioned triple-path, as well as many with various intrusions that seek to maximize the contact area.
Using a Prusa Core One these nozzles were subsequently tested to see what print quality they produced at high flow rates. A special test rig to test the nozzle pressure was also used to further characterize them, as this indicates at which flowrate the nozzle begins to struggle. Among these the Fuge design did the best, though with the big asterisk that these nozzles were printed in MS1, which is in effect tool steel and thus not great for being nozzles.
Next he’ll be reviewing fleshlights
Honestly, pretty impressed by the “hah, that would be funny, why not” lets-stick-balls-in-the-flow-path nozzle. I mean, its not great, but I expected way way way worse.
Using a 3D printer to print a 3D printer nozzle. Inching a little closer to fulfilling RepRap.