Printing first layer problem [Solved]

Hello!

I’m using a ikea mirror and blue painters tape. I’ve tried 50-55-60c heatbed temp and the extruder is 190c.
The problem seems to be PLA getting stuck “on” the extruder muzzle and gets dragged along which ruings the prints.
First I had problems getting it to stick at all but now the muzzle is really close (about one paper) to the bed. First layer height is .35mm and it is that when measured aswell
The plastic is 2.85mm and I’ve entered that and tried 1.0 and 1.1 multiple aswell.
If I remove the extra plastic (created when making the borders/start) I get the result seen in the last pic.

it feels like it was easier to print with the included plastic than the one I have now (bought from feedtheprinter). Got some other igo3d on the way aswell.

Any idea what could be wrong? Thanks.

Hi,

You might try removing the tape and put a light coat of hair spray on the glass.

[quote=“Wrong Way”]Hi,

You might try removing the tape and put a light coat of hair spray on the glass.[/quote]

Hi. Tried that, pretty much the same result :frowning: The problem seems to be when he’s moving from the lower left “hole” to the upper right, and he grabs some of the filament from middle hole.

Hi Martorias,

your pictures look like the nozzle is too high. Make sure that the bed is perfectly level and then lower the Z zero position until the nozzle nearly touches the bed. To get a feeling for a good first layer height, turn the Z rod manually while the skirt and first lines are printed. The extruded filament should be slightly flat on top.

The 0.25 mm mentioned in the manual is a value for the beginning, including some tolerance in case the bed is not yet flat. With a glass plate or mirror, you don’t have that problem, so you can adjust the nozzle closer to the surface.

Cheers,
kuraasu

[quote=“kuraasu”]Hi Martorias,

your pictures look like the nozzle is too high. Make sure that the bed is perfectly level and then lower the Z zero position until the nozzle nearly touches the bed. To get a feeling for a good first layer height, turn the Z rod manually while the skirt and first lines are printed. The extruded filament should be slightly flat on top.

The 0.25 mm mentioned in the manual is a value for the beginning, including some tolerance in case the bed is not yet flat. With a glass plate or mirror, you don’t have that problem, so you can adjust the nozzle closer to the surface.

Cheers,
kuraasu[/quote]

Hi and thanks for the input. Right now I can slide a regular paper under the nozzle without touching it but just barely, so it should be even lower than that? (almost so you’ll have to force a paper below?).

Hi Martorias,

yes, probably even lower. Just try to adjust the height manually as suggested before, then set the endstop screw accordingly. If you are unsure how to spot the right layer height, slice a test object with more skirt lines, so you’ll have some additional time before the actual object is printed.

Cheers,
kuraasu

Hi. I tried fiddling around with Z a bit, even tried the other filament I got with the printer but same results… UNTIL I tried lemon! Cleaned the mirror with lemon stuff and then put a thin layer smeared out with my finger. 55c hotbed and BAM everything stuck. Works fine now and smells better than hairspray :wink: Thanks.

edit: Oh yeah I changed first layer speed to 30%, not sure what it was before but it was way higher… adding pic :slight_smile:

I am having similar problems - how do you turn the speed down? Does the rate of the filament extruded decrease also?

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[quote=“D95Adam”]I am having similar problems - how do you turn the speed down? Does the rate of the filament extruded decrease also?
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If you click Configure Slic3r and then Print Settings, Speed and change the “First layer speed” to like 30-35% (make sure you type 30% and not 30) and then save that setting.