Hi there,
I‘m printing with a new P1S with a 0.8 nozzle for a thick wall and i have a litte edge in the final print which is visible from the outside. How do i get rid of this?
Settings are 0.24 layer height, 0.8 nozzle with base settings for spiral vase except layer width set to 1.4
Were you able to observe the printer behaviour during that print?
There could be number of different root causes. What does come to mind, for example, is a temporary filament feeding issue.
The only thing i did notice since the nozzle change is a visible difference in the layer height on the right of the bed even though i did calibrate it more than one time.
The edge ive marked is basically where it transforms back to one outer layer, so it is thicker as you can see on the pic from inside
I am not sure I can follow you properly.
- Are you saying that you see different layer heights between the left and right?
- Are you saying that you have more than one wall on a spiral print?
Perhaps posting the 3mf would help.
My guess would be because that curve is too sharp for the thickness you have.
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It occours just after the curve, as soon as it goes straight upwards
- point: yes, happens since the 0.8 swap.
- no i dont have more than one wall but after the curve upwards it prints the complete „pattern“ and does not cut it way for the vase mode/ one wall. therefore its printed thicker. I just want a smooth transition so that there isnt this hard switch
Yes, that is what I meant.
Can you post the 3mf file here?
Yes, attached. Unique Download Link | WeTransfer
The problem occurs where the lines smoothen out and the neck tightens.
OK. I had a look but the model is only the object rather than the the print settings. So I applied the 0.8 nozzle, 0.24mm layer height and Spiral Vase mode, but the slice looks good. So probably not Slice related (although there could be more differences in yours).
Since I now do not think there’s much in the settings, both of your observations have me slightly stumped. Regarding
- The layer height difference between left and right, I find it hard to visualize that. If it is throughout, the vase would be bent
Or is it just one layer? If the latter, are you using Automatic Bed Leveling before the print? Do you need to tram your bed? - The defective area looks very much like the filament stuck, the printer took a pause to try to push-pull the filament (it does this when using the AMS), resolved the filament feed issue and could then complete the print. Only that the print cooled (i.e. shrank) while the printer was playing with the spool. On a lower layer height setting, that print would have probably failed at that point. I do not think that the defect is per-se related to the geometry as there as a few good layers between the features.
There is the problem. Speed should be constant so that the curved part gets to be printed at the same speed and with the same airflow.
If you cut the outer walls speed to 60 (in the left side of the picture), then you will not notice that because both flow and speed are constant. You take about 30 minutes more to print it but at least you get a nice and constant finish.
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Very nicely spotted 
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Usually that is the first place i look when i see this. 90% of the time it’s that, 5% is problem with settings and the other 5% usually is user error. But we learn all the way and all the time 
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That is why I was stuck on the filament entanglement. I have seen that recently a few times but it has been over a year since I had a speed/flow related issue.
So all I could see was nails when in truth it was a screw 
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You could also be right. From the slicer there isn’t much to see. Even with the outer walls speed reduced, it can in fact be a nozzle problem or a partial clog. But i suspect that he was trying to print silk with the generic basic pla settings and the volumetric flow is different (i think) and also silk likes a bit more temperature and also strings a bit more than normal pla.
Anyway, i hope he tests it and gives some feedback later
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Indeed. But it would be rare coincidence if the filament got caught just when there’s an obvious change visible in the slicer.
When I last had flow/speed issues, it was in pre-smooth-transition times on slow-on-overhangs with the old PETG Basic. That was very visible in the prints (and slicer) but the other way round (thickness increase from the rapid slow down). Your pic clearly shows a slow slowing down across several layers before the speed doubling where the thinning occurs. So I’d bet that’s it.
Looking forward to @crazymilchmann feedback 
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Thanks Guys! I will check the speed and try again. I‘ll report 
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So i did another model in the meantime in which i already slowed down to 60 and… ssdd…
i will try again with the inital model from above with slowed down speed. You‘ll hear from me
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Hey, that does look very promising