Hi together,
I am having the problem, that the printer stops on random layer changes for a few seconds which is causing blobs... On the benchy the problem gets worse the smaller the layer is.
One time the printer stopped completely...
Any suggestions?
Are you printing via SD card, octoprint or win/OSX USB cable?
Via SD no PC connected
Can you try a different SD card or format this one?
I had the same issue on my first prints. Then i printed a temp-tower for another brand of PLA and the printer hung high up in the tower. It proceeded after a pause, which caused it to reboot, since then, i haven't had that issue at all. I have printed in lower temperatures, since then, which is what looked best on my temptower, but it seems strange that it should have anything to do with the issue.
I made some more attempts with the same problem. I tried also a different SD and a formatted one as well. Some impressions:
Any suggestions? Thanks for the help so far!
Any help? I am not able to print... :(
Strange that this happens to you via SD card. I had this issue when my PC/Cura was hanging while printing.
This is really strange... I also checked the right voltage settings, the mechanics and so on... No problems there...
Could be an issue with the SD card reader/writer if it's stopping at the same point each time.
Also a suggestion to improve the quality would be to lower the temp, and to also lower the flow rate in cura (Material -> Flow).
If it helps any, I started receiving this issue when I upgraded the firmware to the DSE firmware. It doesn't happen on every layer, but it does happen occasionally at 200 deg print temperature.
I had the same issue, using SD card. But it fixed itself midprint. Attached is the picture of that print. You can see where it paused and caused blobs to the left of in the picture, then it locked up which made the printer to reboot before resume, Blob from that can be seen next to the bridging section. After that the print finished the last part perfectly and I haven't had the issue at all.
I have got kinda the same problem with the blobs, but in my case its with my second extruder, the first one prints pretty normal no blobs or anything like that an when i printed the benchy with the second extruder there where blobs all over the model and he even stopped before the print was finished and rebooted. I dont think it would be a problem on the SD card bc then my first extruder would have the same blobs. As far as i have read in this post this will resolve atomatically and there is no proper way to solve this problem?
Is the ptfe tube pushed in all of the way? Is the idler arm on too tight, it it is try loosening it for a better grip against the filament. Check your stepper driver trimpot for the second extruder, does it's position match the first extruders trimpot, checking the vref value with a multimeter is the most accurate way of doing it but this level of precision isn't entirely necessary. Vref can be measure by checking voltage between the trimpot and and ground/negative.
If you're still having issue it may be useful to increase the retraction distance in cura with extruder 2 selected (Material -> retraction distance).
Random pausing during a print is not normal, and looks to be caused by gcode/touch screen firmware issues. We're working on a software update that should hopefully resolve these issue.
The filament sensor is binary, it only senses whether filament is present or not, it doesn't actively measure the flow of filament.