Model 0 Report post Posted September 13, 2016 in eSUN HIPS 3mm filament printing with 0.8 mm nozzle on UM2+ (edited) Hi guys, I bought an UM2+ to make a robust and temperature resistant (min. 80 °C) case for a project. Since I am a complete newbie to 3D printing I started with the PLA filament which came along but it is of course a bad choice for the mentioned requirements. So I chose HIPS because a friend who uses the Zortrax M200 recommended it to me. He used eSUN HIPS but with 1.75 mm diameter. Now I also bought eSUN HIPS but with 3 mm diameter. I measured 2.85..2.9 mm and left the value in the material.txt at 2.85 mm. Since I need to increase the print speed I changed the nozzle to 0.8 mm. Now I am figuring several problems. When the bed temp is at 80 °C the filament doesn't stick to the bed anymore and comes off after the 2nd layer is printed. At 100 °C bed temp the print sticks to the bed but the area where support structure is placed comes off. With 235 °C and turned on fans I am having the problem that the adhesion between the upper layers is very bad and I can peel off single layers or larger parts of the print. At 250..260 °C nozzle temp I get sometimes "scratches" on plane surfaces. In any case so far I am having the problem that the edges of the print will upend. Another problem is that the lines are not placed directly adjacent to one another. There is a gap between them. What I found online so far, it looks like it is underextruded. But when I set the nozzle size in Cura to 0.4 mm it is perfectly fine. When I print with 0.8 mm or 0.6 mm nozzle settings from Cura I also get more often "bubble" lines, like a bubble of material is coming from the nozzle. Here are 2 photos (top and bottom) of an example which I started with 0.8 mm nozzle settings in Cura. If anyone can help, I would be so grateful because it's killing my nerves and the Ultimaker is rather a Troublemaker to me now. Also the weather is currently very hot in Germany, I don't think that the temperature of the air is too low. I read in forums that HIPS needs to stay in a warm atmosphere. But I doubt that it is too cold at the moment. Edited September 13, 2016 by Guest Share this post Link to post Share on other sites
622548 1 Report post Posted September 14, 2016 in eSUN HIPS 3mm filament printing with 0.8 mm nozzle on UM2+ So wait hold on, you measured the filament diameter and it was 2.9 or did it have inconsistent diameter in some areas? Share this post Link to post Share on other sites
Model 0 Report post Posted September 14, 2016 in eSUN HIPS 3mm filament printing with 0.8 mm nozzle on UM2+ I measured values between 2.85 and 2.9 mm over different spots on the reel. Share this post Link to post Share on other sites
Model 0 Report post Posted September 15, 2016 in eSUN HIPS 3mm filament printing with 0.8 mm nozzle on UM2+ (edited) Is it ok, if I post this topic in the German section, too? I have the feeling that the participation there is higher... Edited September 15, 2016 by Guest Share this post Link to post Share on other sites
