1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet  

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

the lowest part of the nozzle has filament on it. that means its too low?

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

fuzzy on

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

One of the things I like to do with nozzle sizes from .25 mm to .8 mm is once you get the first layer bead somewhat flat pay very close attention to the parameters, they should be razor-sharp, if they are wavy you are too close to the plate if they are bulbous and not sticking properly you are too far away.

Start with a 3 x 3 pattern in the center of the plate. Keep adjusting live Z while in the middle of printing this pattern until you think it is perfect. When it's done scrape it off the plate and try pulling it apart it still pulls apart you can go a little lower on the live Z. Once you get it perfectly flat with no imperfections and sharp edges and you can't pull it apart you can then step it up and try out some full plate patterns and use the other calibration functions to compensate for imperfections in flatness if you are running an unmodified bed

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

what is 3x3 pattern? u mean 3 rects, 3 rects, 3 rects above each other? so 9 rects in total in the center of sheet?

pull apart what? how?

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

1. Here ya go.  https://www.printables.com/model/20306-first-layer-calibration

You mentioned a .8 mm nozzle I assume you have experienced calibrating smaller nozzles like the default  .4 mm?

Once you get that square printing good try and pull it apart with moderate Force horizontally, parallel from the print lines basically you are testing the strength. Also hold it up to a bright light and look for gaps but you can't see without light behind the print. A perfect square will not have any gaps, fuzziness, and will not pull apart. 

.8mm is a beefy extruder. 

RE:

ya ive calibrated 4n. PITA.

default mini extruder

and why 7.62cm per rectangle side? that is way too long for a first layer test, no? can i do 10 smaller rectangles?

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

Just start with that one in the center of the plate.  Once perfect, move to this: 

Mini - https://www.printables.com/model/30854-bed-level-correction-for-prusa-mini  

RE: 1st layer good? 2 pics, same object 0.8n. btw i think the nozzle almost touched the sheet

btw i printed this on the left center on sheet and look how ugly it printed