Hi, I’ve been printing for about a year, sometimes even successfully, but on this specific print, the nozzle drags through the layer for no reason. Usually, a Z-Hop prevents that, but on this very print, the Slicer somehow doesn’t add one. I’m using Orca Slicer (dockerized, Linuxserver.io image from last month, 15.09.25) and have enabled Z-Hop in the printhead config (all surfaces). It does add Z-Hops on other moves, just not here. And yes, I know my Z-Offset is a tinge too low, which is part of the problem, but I’d like to focus on Orca Slicer not Z-Hopping first.
Does anyone know about this issue? Slicing with PrusaSlicer works; I can just switch back to that one if I don’t find any features I miss from Orca Slicer.
So Prusa does zhop, but orca doesn’t? That’s interesting…
Does it act any different between classic and arachne?
Are Prusa and Orca orienting the object on the plate exactly the same? Like maybe one is turned 30° more than the other…I don’t have an answer for you but I will say I am jazzed to learn there is a hostable version of Orca.
I don’t have a solution for you, but I just wanted to say that z-hopping sometimes causes more defects than without, in my experience. With my extruder at least, it’s more likely to leave behind a blob if lifting, while with a classic retract+wipe the nozzle stays “plugged”. I also used to get mad at the nozzle going through a layer and leaving a mark, but then realised that it really doesn’t matter unless it’s a top layer. You also save a little little bit of time by not z-hopping.
I do hope you find an answer though, everyone should print with whatever parameters they like :)
leave behind a blob if lifting
Yup, can confirm - I do however rarely print stuff that needs to be pretty, which is why I take the blob over the noise of hearing my nozzle drag over something (and/or potentially knock something loose). Also, “aligned” seams hide the blobs on a lot of prints.