@zapta said in Z artifact that's time/speed related:
I tried a nimble extruder a few months ago and had similar diagonal lines, never seen it before with any other extruder. I thought that they may correlate with the turn of the flex cable but gave up and went to a BMG direct extruder which works just great. No more bowdens or flex cables for me.
I have a completely different extruder on here previously with the same result, so it's not that. But thanks.
@bot said in Z artifact that's time/speed related:
Is your slicer modifying print speed or cooling based on predicted layer time?
most likely it is, I can look into that and see if it has any effect, thanks.
@droftarts said in Z artifact that's time/speed related:
@screwyluie said in Z artifact that's time/speed related:
well I changed that and it didn't help. Thanks anyway though.
Interesting. Can you post your current config?
You are using the default thermistor settings B4138, which is likely not to be correct, so you might also be extruding too hot. The print possibly looks a bit overheated. With a slow extrusion of vase mode, there may be a build up of molten filament. In vase mode, when extrusion speed is consistent, this would release at regular intervals. What thermistor do you actually have?
Otherwise, the frequency could relate to an eccentrically turning extruder drive. What drive are you using? Bowden or direct? Try extruding 50mm slowly into air, see if the extrusion is consistent, also if the feed into the drive is consistent.
Does the filament have a consistent bulge in it?
Ian
it's an e3dv6 hotend and the standard thermistor for it.
as for the extruder drive, I've completely replaced the entire extruder, so I really don't think it's the extruder. I'm currently using a nimble, I had a direct drive on previously... so entirely different hardware.
I've used half a dozen different filaments in this process, so it's not that either.
current config is the same as before except I moved the M584 command above the M350 command as instructed previously.