Screen malfunction and filament halting while printing detected.
Screen malfunction and filament halting while printing detected.
According to the description, my SV06 has emerged with two notable problems. Problem 1: The automatic bed leveling works well until it reaches the sixth point on row one, after which it continues descending past the print bed, forcing the hotend into place and bending it. I suspect this is linked to a larger build plate being detected by the firmware. The printer’s intended print area is 220x220x250. I reset the firmware thinking a configuration error might be causing this, but it didn’t resolve the issue. During setup, I followed the manual and used the provided software without issues. After storage for about five to six months, it began showing unrelated problems due to incorrect slicer settings and limited troubleshooting time. The wire visible under the bed was originally from the screen; the new touchscreen uses a USB cable, which is no longer needed. Problem 2: The printer halts filament extrusion at the same spot on each print and stops entirely on other prints. I’m certain the nozzle isn’t blocked—just confirming it wasn’t the cause by removing, cleaning, reinserting, and re-extruding the filament. No unusual noises occur when it stops, though the front gearwheel continues to spin normally. During removal, there were no breaks inside the extruder or brittleness in the filament. I adjusted the tensioner and checked hot end temperatures, but results were inconclusive. The hotend assembly is a replacement part (RMA), as the original had a defect with broken screws. Anyone have suggestions for resolving these issues? (Includes reference image and video.)
The problem of the hotend bending the print bed needs attention. I don’t know your printer, but there should be an issue with the bed sensor—either it doesn’t detect the bed properly (magnetic or contact switch) or there’s a broken wire connecting the sensor to the main board. That needs fixing. Regarding the hotend, if filament is being extruded during testing or printing, it’s not clogged. If the filament stops extruding without a hardware problem, it’s likely a software issue. Are you using a memory card for your print files? Try another one. Also, experiment with different slicer settings or switch to another slicer. Hope this helps.
Thank you for your response. It seems the wire might be faulty since the sensor functions correctly but applies too much pressure, causing the print to go off course and press into the bed. I believe the files are saved on the screen's internal memory when transferring from the web UI via Wi-Fi. I agree with you that the slicer could be the source of the problem. I'm using the standard SV06 Klipperised Cura profiles without any changes, just to compare. I'll attempt printing with the original factory Cura profile included in Cura and will follow up. I've attached a video showing the bed leveling issue and the parts that stopped extruding at the same spot. The wire under the printer was meant to stay on the original screen, which isn't necessary for the upgraded model. 20240728 140252.mp4
Issue 1 has worsened; the print head is scraping across the print plate, creating a significant hole. Until a fix is found, I’ll need to turn off the printer to avoid further damage. I’ve reached out to support about it and will let you know once there’s an update.
It’s clear the sensor missed the bed because it wasn’t on the printing area. To avoid issues, placing a metal object where the sensor lands could help. The bed leveling pattern should cover 5x5 or 6x6 rows, ensuring the sensor touches metal across all lines. It seems the printer’s software doesn’t align with its hardware—either the bed size is incorrect or the stepper motors aren’t moving consistently. There might be a limit switch on the X axis causing this problem. The situation isn’t obvious yet; it could stem from a gcode file error or a software glitch. A clog isn’t likely, as that would require extra steps after filament stops. Good luck with your printer!