Hi all,
I have been printing with my P1P for a while and am super happy with the results and the speed. So far, I have encountered almost no issues. Recently, I bought some Prusament PLA (galaxy black) and discovered a small issue.
At first I used the “Generic PLA” filament profile and standard speed settings to print and noticed that the parts came out with a very rough surface that appears rather matte compared to the example images of prusament PLA I could find online. Notice the almost diagonal pattern on the surface.
Appart from the aesthetics I have some applications such as 3D printed gears which require a smoother surface for better friction properties.
I then noticed on another part that the expected surface finish appeared on a section of the part (I hope its visible on the image):
After some investigation in the slicer I observed that the speed is significantly slowed down due to short layer times in the shaft section of the part:
The print speed in the pink section of the part is 28 mm/s. I can achieve the desired results by slowing down the outer wall speed to <30 mm/s but this drastically increases the print times for larger models. For example I printed the same part again with outer wall speed at 30 mm/s and observed this satisfying result:
Thus my question: Does anybody know a way to maintain the sort of glossy surface finish that results at low print speeds at higher print speeds?
I already tried increasing the print temperature by up to 20°C but it didn’t noticeably change the print quality at higher speeds. I also tried the tuned PLA profile I found at (Printables), but it also did not solve the problem with the surface finish.
According to the prusa knowledge base It should be possible to print prusament with up to 25 mm3/s MVS (Max volumetric speed | Prusa Knowledge Base).
I appreciate any insights you might have on printing prusament faster. Thank you very much.