@Rwide 2mm this time
Can you please translate this?
So for example, if youāre printing with 0.2mm layers at 60mm/s you would do: 0.4x0.2x60 = 4.8mm 3/s. This is a speed that a properly functioning.
So my nozzle is 0.4, I want to print at 60 mm/sā¦ now where to I check if the 4.8 is correct?
Normally from what Iāve read the snapmaker 2.0 single extruder has about 9mm3/sā¦ Unless Iām mistakenā¦
It looks terribleā¦ I would turn retraction off and print the same thing again. Or just enough of it to diagnozeā¦
Does snapmaker has a setting where I can check the advance pressure in nozzle?
Maybe itās something my printer doesnāt have tunned
Yea the cubic calculation looks right to me. But the slicer does that calculation for you so there is no need to bother with that unless you want to go much faster than you areā¦
If everything works like it should with your machine, 60 mm/s with a 0.4 nozzle shouldnt be a problem.
Not sure what you mean, but if youāre reffering to the k-factor, it should be saved in the eeprom i think. There is probably a marlin command for itā¦
There it is: Linear Advance Factor | Marlin Firmware
Ah noā¦ k factor at 0.04ā¦ been at 0.07ā¦ never made a differenceā¦
With the risk of looking stupidā¦ But Iāve never put thermal paste when changing the hot endā¦ is that mandatory?
Just thinking itās something happening from the moment the filament enters the hot endā¦
@Marius87bv I think you should disable retraction and see what happens 
@Marius87bv Yes it matters. Sometimes it works without it but it will always work better with it.
Maybe you have heat creap issues because the heat is not trannsferred properly from the heat break to the cooling blockā¦ This can cause temporary clogging. Frequent retractions at high length will make this type of problem worseā¦
So I guess thatās nextā¦ thermal pasteā¦ Time to Google that nowā¦ how much and where :)))
Started the print with no retractionā¦ I guess you are rightā¦ it does look like a temporary clogā¦ and then it sorts itself out
@Marius87bv Seems like some type of blockage. I would probably dissassemble the hotend at this pointā¦ Maybe 250 e-steps was too much?
Donāt know anymoreā¦ the part seems alright in places
What would you suggest to do if I cake out the hot end?
Inspect the filament pathway and make sure there is no blockage. Could be a piece of broken filament or previously melted/softened plastic somewhere. However there are other things you can try first if you want to avoid dissasambling the hotend/toolhead.
- make sure your z kinematics are ok. Do this by printing an object 2 times with the same settings and placement, but with different speeds. Then compare the objects to see if the horizontal lines match. Id they do match, your z kinematics could be the issueā¦
- you could try a few ācold pullsā
- you could try unclogging through the nozzle with an acupuncture needle.
Ah yes, so I have changed the hot end just before starting this treadā¦ Just to eliminate the clog suspicionā¦ The previous hot eng was new as well but took it out just for me to see how it actually looks insideā¦
The ptfe inside as newā¦ The inside of nozzle full off melted filamentā¦ no leaksā¦
Will print a couple of calibration cubesā¦
Just thinking that on lower layer height these issues disappearā¦ Or not noticeableā¦
Maybe I need to change line width from 0.4 to something differentā¦ just not sure on the ratio
@Rwide what speeds you recommend?
I went to Cura, and sliced on each profile ( high, normal and fast ) changed only the layer heightā¦
Really curious now
@Marius87bv Not sure. Iām not that familiar with your model. I have the J1 printer. Maybe you can start with 30 mm / sec and when you are satisfied with the results, you can go fasterā¦
Just made 3 cubesā¦ 60, 50 and 40ā¦ as expected in " tests" all goodā¦
But in all honesty I have played with the speed from the the printer screenā¦ it happens at any speedā¦
Must be my tool headā¦ Canāt see what I need to change/repair to get to do decent printsā¦
The problem is that the @Snapmaker-Support not having the opportunity to actually see the machineā¦ itās hard to diagnose from the photos I send them
I certainly believe that is not a setting anymoreā¦ As everything is stockā¦ Filament is definitely a variableā¦ But Iāve used about 30kg until now, all different brandsā¦ And similar resultsā¦
If itās not one thing is anotherā¦
Under extrusion on long travels
And then not sure what this is
Seam supposed to be straight
On the inside itās straight
Maybe it supposed to be in the same place?
Not sure what the printer tried to do here
Looks like it tries to do a knitting jobā¦ layers on top and under othersā¦
@Marius87bv seam looks normal to me. You can see where the seam is placed in the slicer preview before you print. Are you sure your part cooling fan is working?