gfisch9862

GregValiant, I sent you a PM, but thought others might benefit, so I'm posting it here again. Thanks. After seeing other people's success printing the same R2D2 parts using PETG, I noticed one major difference... they all had direct drive extruders, or very short Bowden tubes. My Ender 6 has a very long (0.85m) Bowden tube. That might explain why small parts look great, but the large ones have issues. The large parts are flexing the Bowden tube quite a bit and with the flexible and stretchy PETG, the extrusion amount varies considerably. That would also explain why the different extrusion settings had little, or no, effect. That might also explain why the stiffer materials, like PLA, were less affected by the long Bowden tube. What do you think?

OK, GregValiant, I'll give it a try. I got another test running now, so I'll try it in the morning. Thanks so much for your help.

Reset and shorter file name did not make any difference.

Thanks, GregValiant. That sounds like a great idea. I have had a number of issues with the Ender 6, especially after adding the BLTouch. I had been in contact with Creality several times and they are sending me a new BLTouch, but I think there is something else happening. A mainboard reset definitely seems to be worth trying. The heat in the enclosure was around 47C according to the little thermometer built into the cover. Since the main board in underneath, it shouldn't have gotten too warm. Here is a picture of the odd bed leveling I was getting with the BLTouch. Note the high and low spots. I now do only manual bed leveling until the new BLTouch arrives. I damaged the build plate with the completed print right before this one. It started out with the low spots, but I let it print anyway. Once completed, the low spots were really stuck tight. Even chilling the plate in the freezer didn't help. Removing the PETG part took some of the coating, and the glass, with it when I had to finally pry it off.

Thanks for going through the gcode. The last time I tried to print the full-size version, the infill was printing REALLY fast... faster than anything I've seen on that printer before. When I checked the setting, the infill speed (which was calculated) showed 360mm/s. I certainly didn't set that value. I think it must have been created while changing some of the other values, but I don't know that for sure. I'll try the shorter file name to see if that makes any difference. After that, I think I'll go back to PLA+. It was suggested that I use ABS or PETG for these structural parts, but I seem to have too many issues with them even though the Ender 6 is enclosed on the sides and I got the plastic top cover. Unfortunately, the top cover warped severely when I was using ABS temperatures and fell partially into the printer, jamming the print head. Another time, the cable assembly got too warm and sagged into the printing area causing another jam.

Right now, I'm using 4.13.0 Beta, but had the same issue with the previous version, 4.12.1, I'm using a stock Ender 6, but with a Capricorn Bowden tube, and Overture 1.75mm white PETG. Here is the .gcode file of a 20% XY scaled version of the part, but with 100% Z. This makes it easier to test. I'm not sure what I'm actually seeing, but it almost looks like the travel speed multiplies the print speed. Changing the travel speed makes a difference, but changing print speed makes a bigger different when the travel speed is high (100-150), but only when it's printing the infill. CE6_CE6Mainbody1b.gcode

Hello, In relation to my previous post where I was having trouble printing the infill, I found that changing the "travel speed" in Cura changes the speed of the infill printing. Is that a bug, or is there some relationship between infill and travel that I need to learn about? Thanks.

Hello, Can anyone help me to figure out what is causing this strange infill that I get with PETG? It's suppose to be cubic. I found that slowing down the travel speed helped, but that doesn't seem to make much sense. I tried changing the infill speed (both up and down) and didn't see much difference. The travel speed (100mm/s down to 60mm/s) made a huge difference. Thanks.