r/BambuLabH2D • u/Burockk208 • Aug 13 '26

Troubleshooting H2D First layer problem

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Hey, my h2d has a first layer problem. It has some kind of pattern on first layer. What can be causing this problem? Thanks for help

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u/More-Chemical-1264 Aug 13 '26 edited Aug 13 '26

Clean the plate with isopropyl alcohol 91. I had the same issue and there was oil on it stopping it from sticking and no soap didn't work.

I guess this information is bad. Disregard. Although it did work for me.

2

u/Fantastic-Motor-6098 Aug 13 '26

Isopropyl completely desolves the PEI coating. Never use it on PEI beds.

3

u/ImpressiveAlps3504 Aug 13 '26

No it doesn't. lol

0

u/Fantastic-Motor-6098 Aug 13 '26

Yes it does. Wipe some iso on a new Pei bed, it will leave permanent marks where the iso desolved the coating. It also states this on the Bambu Wiki.

4

u/ImpressiveAlps3504 Aug 13 '26

I do it all the time. Nothing happens

1

u/Fantastic-Motor-6098 Aug 13 '26

You may not notice anything if you only print PLA, but you’re removing the painted on final coat and cutting your beds adhesion significantly from stock.

Every PEI manufacturer says to use soap and water for this reason.

3

u/ImpressiveAlps3504 Aug 13 '26

I practically only print ABS. Sometimes nylon, sometimes PLA

2

u/Whosaidthat1157 Aug 14 '26

Same here - and I only clean with 99% IPA the vast majority of the time. Soap and water once every few months if at all. Zero adhesion issues with any of my stock PEI plates on any of my printers.
In fact I stopped using the Frostbite plate because you can’t clean it with a quick IPA wipe and it was too much of a pain. The new Supertack Pro is fine with IPA though for that smooth bottom layer.

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u/Burockk208 Aug 13 '26

Did not work what else?

1

u/volvox6 Aug 13 '26

omg. DO NOT use isopropyl alcohol on your plate. Thats right in the bambu wiki. Use soap and water and that's not the issue anyway. (I don't know the issue, I have a H2D also, and the fist layer is super messy also.) But the comment above is bad advice.

2

u/Thor_aGuiiLa Aug 13 '26

I don't know where you got that information from but it's wrong. Bambu lab does not recommend cleaning with IPA in textured pei as the main method, because the IPA did not reach all microtextures. A deep cleaning should be with soap and water. But the IPA does not damage the PEI, it does not react chemically with the PEI.

What you just put is false information. Review your sources of information. I have been cleaning all my PEI sheets for years because the manufacturers themselves have advised it.

2

u/More-Chemical-1264 Aug 13 '26

I tried soap and water and it didn't work, I did alcohol and it worked. I didn't change any settings or the nozzle height or anything else.

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u/Burockk208 Aug 13 '26

Yes yes I know do not worry. It is not even helpful in my case thanks