this post was submitted on 24 Jul 2023
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I recently had two print failures on my Ender 3 Neo. In both, it looked like the part came free from the heated build plate after about an hour or so of printing. Both had good starts in the first 15 minutes or so. I had a successful print finish two days ago.

It has been hot and humid here today, and my printer is in a non-AC shed not connected to the house.

I'm wondering if I should wait to kick off the next print until this evening when it should be cooler. Do I need to clean the build plate? I've not done that at all, other than make sure these isn't any filament left on the plate when it finishes.

UPDATE: It's apparent the problem isn't the heat, but the fact that I haven't cleaned the build plate since... well, ever. Adjusting the title to reflect that.

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[–] [email protected] 2 points 1 year ago (3 children)

Yeah mate clean the plate, I wipe my glass with 60% alcohol before every print. Most people recomend 90% isopropyl alcohol and sometimes dish soap and hot water for deep cleaning.

I dont think you have problem with too hot room, but you might need to lower bed temp a bit to get the same actual surface temp. What temps are you using? Printing pla?

Too hot bed can help with adhesion, but can cause lifting, so I print first layer at 60 and rest on 56 C for example. Big prints are more likely to lift mid print, its not bad to use brim and maybe even mouse ears. If you surface is not clean it might be painful tho

[–] [email protected] 1 points 1 year ago (2 children)

I'm printing PLA+ at 200C nozzle, 60C bed temp. It's been fine so far with a few failures I've filed under "User Error".

OK, now I'm curious how I change the bed temp settings after the first layer -- something in the slicer? I'm using Ultimaker Cura, and have just recently been digging into the advanced settings.

[–] [email protected] 1 points 1 year ago

Yeah you can change the settings in cura. I believe it’s under the materials section after you injure the setting

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