First Prusa Logo tries after assembly
Hello, last week I finished assembling my MK3S kit. I started with printing the Prusa Logo. The result can be seen here:
I was not perfectly happy with the result, so I tried again, with the same result.
As a possible solution, I tried to adjust the PINDA probe, did the callibration (complete from the start), but again the same result.
Today I did a new try. First I reran the first layer calibration, see result:
Top:
Bottom:
I reran the slicing, so now I did not take the original file on the SD - card.
Here is the first layer during printing:
and the final result:
This is better, but still not 100%, or am I to demanding?
Any suggestions are more than welcome... Also, is there something wrong, as there is a string after the first layer calibration...
RE: First Prusa Logo tries after assembly
I seem to have troubles to send in the higher quality pictures, so here's another try...
RE: First Prusa Logo tries after assembly
Layer 1 is a but high - needs a more negative Live-Z value. But other than that, I'll trade printers anytime.
RE: First Prusa Logo tries after assembly
To be honest, I find it very difficult to put the right value for the first layer calibration...
RE: First Prusa Logo tries after assembly
This is a smooth PEI sheet, but the principal is the same: you want the extrusions to weld together. This photo shows an almost perfect layer 1: welds 99% - only a few small gaps visible.
RE: First Prusa Logo tries after assembly
Personal opinion:
Too thin is worse than too thick.
Don't "smear" the filament into the plate. It becomes almost impossible to remove.
Shoot for one that looks like Tim's.
RE: First Prusa Logo tries after assembly
Hello all, thanks for your answers.
Tonight I will continue and look for optimal settings. Meanwhile I have to questions
Layer 1 is a but high - needs a more negative Live-Z value.
Currently Z-value is -1.300. Do you mean with a "more negative value that I need to go towards -2.000 or towards -1.000?
I will definitely try the Circle Calibration. I know I have to do this with the Live Adjust Z. Is this value then kept for the following prints, or discarded every time?
What about the string after the calibration, is this normal, or do I need to adjust something?
Sorry that I ask all this question, it is still new for me. I am already very happy that I chose a Prusa printer, just for the support that is available!!!
RE: First Prusa Logo tries after assembly
Whatever it takes to get welded extrusions when you pull up the test part.
Slice the part, start the print, then on the LCD select Live-Z or Tune/Live-Z - then adjust with the knob. Going more negative makes the layer thinner (less extrusion gap), going positive makes it thicker (larger extrusion gaps). If you see gaps between extrusions, go negative. Play with it, go in smaller steps of +/-0.025, not large jumps.
When the part looks right, it's okay to stop the print. The printer will remember the setting for next time.
You only adjust Live-Z when you see something wrong or do something like change the nozzle' or any time you make some adjustment to the extruder that moves the PINDA height.
You can also do the adjust using the Prusa logo - it works okay as a Live-Z layer-1 test.
RE: First Prusa Logo tries after assembly
What about the string after the calibration, is this normal, or do I need to adjust something?
The string is normal. It's not pretty but also not a big issue. Some people succesfully improved the stringing during Z-probing by changing their start Gcode in a way that the hotend is not all the way heated up during probing and heats up the last 10-20 degrees after probing.