I’ve an issue with my Artisan: when I print a structure like the one you can see in the video attached, it happens randomly that the nozzle hits the print, sometimes in a light way, sometimes in such an hard way that the the print, in that point, breaks or even is teared off from the prinitng plate.
During the 30 seconds of the video, this collision happens four times.
Artisan firmware and the slicer (I use Luban) are both updated to the last version, the printing program is set to print the inside walls first, then the outside walls and lastly the infill, I’ve already tried to change this settings but the issue remains.
For all other kind of prints it works perfectly, this issue happens only with this type of structure, does anybody have a solution or even just a hint?
I would suggest to use z-hop for this kind of print.
Is your cooling fan running at full speed?
Because of too hot printed surface it’s possible that the surface is not proper aligned, have a look here for more imagination:
I would say the structure looks to be so flexible that the extrusion pressure pushes the structure down during printing and then the printed part springs up slightly when the head moves on, and so on.
Hi xchrisd, thanks for your reply, z-hop is already enabled and the cooling fan speed si set to 100%.
I also watched the post you linked and I think the issue, in my case, is different because I don’t print a single “tower” but may small towers so the nozzle always move from a tower to another it doesn’t remain too much time on the same spot.
Hi Boxkite, thank you for your reply, I had the same thought but I don’t understand why the collision seems to happen randomly on different spot even if all the part of the print are equal in shape and height, I think that if that is the problem, it should happen always in every point of the print.
Instead I noticed that sometimes (I don’t know why), only in overhang prints and not in every point of the prints, the hot plastic just printed seems to move upward a little bit as soon as the nozzle move away and, when the nozzle go back to that point, it may hit that small ledge.