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.
Your print doesn’t come off from heat, its the opposite. If you never cleaned the build plate that is 100% the problem. I clean mine before every print.
OK, good to know – just did an alcohol/dish soap wipe and restarted the print, will check it in a bit, and do the cleaning after every print.
If you do it before every print, you also get rid of the dust that settles inbetween prints
Yes. You need to clean the build plate thoroughly after every print with alcohol. You have layers of built up plastic schmoo that is not letting new plastic adhere.
Humidity will degrade your filament too, and cause it to get stringy and warp more severely. Make sure you keep your filament in an airtight box ideally with desiccant.
I bet worst schmoo is grease from fingers tho. Either way alcohol or soapy water does the trick
