frantiek.v2
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Wrong first layer or?

Nov 30, 2018 1:40 pm

Hi guys,

I become despered... I really don´t know what to do next. https://drive.google.com/file/d/16IPKgh ... sp=sharing
Here is my result of latest print during first layer.... I did a complete of printer using latest part. I did bed level with springs as it is in this topic user-mods-octoprint-enclosures-nozzles- ... 3-s70.html

Can you point me what I should do? Material is PET-G from PM. Temperatures 240 nozzle and 80 bed. These temperatures works best.

Thanks

Frankie

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RHDreambox
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Re: Wrong first layer or?

Nov 30, 2018 3:57 pm

To me it seems like you need to raise the Z level a little bit. The filament string looks very smeared.
Happy owner of a Prusa MK3

frantiek.v2
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Re: Wrong first layer or?

Nov 30, 2018 4:03 pm

I try to do so, but it didn't help. Still didn't stay on plate.

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RHDreambox
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Re: Wrong first layer or?

Nov 30, 2018 4:58 pm

You do not mention what you clean the bed with before printing, but do the following:
Wash the bed with detergent and water, wipe with paper.

Apply Windex or similar window cleaners on the bed when it is heated. Do it a couple of times, otherwise PETG may be difficult to remove when printing is complete.
Apply Windex between each PETG print.
Happy owner of a Prusa MK3

frantiek.v2
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Re: Wrong first layer or?

Nov 30, 2018 5:06 pm

Will try to do so... Hopefully will helps. So far I print several kg of PET-G but didnt have such a big problems with stick on the bed as now...
Thanks for advice. Will keep you informed if it is help or no.

frantiek.v2
Posts: 7
Joined: Nov 02, 2017 7:24 pm
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Re: Wrong first layer or?

Dec 01, 2018 6:31 am

Hi ,

I clean sheet several times. Unfortunately, it didn't help. What si interesting that always do this stick problem in different locations.... Even when I restart printer it will do it in different locations ( without touching of bed ).

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RHDreambox
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Re: Wrong first layer or?

Dec 01, 2018 8:59 am

Could it be the filament that is bad (moisture damaged)?
Let it dry in the oven (60 degrees) for an hour to see if it helps, or try another filament.
Happy owner of a Prusa MK3

frantiek.v2
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Re: Wrong first layer or?

Dec 06, 2018 3:17 pm

Today arrived new spool of the same PET-G. Well it is better, but still not 100%. The thing what help me most is Isopropanol... I clean a bed with it and seems to be right way.

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RHDreambox
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Re: Wrong first layer or?

Dec 06, 2018 3:20 pm

Why not try detergent and water? It is more effective than isopropanol.
Happy owner of a Prusa MK3

frantiek.v2
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Re: Wrong first layer or?

Dec 06, 2018 5:37 pm

What kind of detergent would you recomend? Isopropanol works so far for me fine...

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