i was printing a dummy 13 model 180% and while i was printing some parts for it and the prints came off. this is the 3rd time this has happened for the SAME pieces already. my bed temp is 55c on a textured PEI plate and my nozzle temp is 220 for POLYMAKER PLA (non silk) and im using the 0.16 mm optimal on the P1S printer. anything i can do??
NOTE: some settings i changed on the 0.16 is that the first layer print speed is changed from 50 mm/s to 15mm/s.
perhaps i can heat up the plate and the nozzle more so that it has a chance to stick? i changed some things, i made the āno cooling for X amount of layersā to 8 layers
i will try this now and update you. im printing something small (a foot piece from the dummy). how about rafts? would you reccomend rafts on a print like this?
Having just come to the Bambu family from an Ender, I experienced the same issue. Pieces would just pop off about halfway through. For me at least, the PEI plates seem to want to be run a little hotter. I increased the bed temp to 65 and my prints are now sticking like they should. It was the same with the aftermarket plate I had on the Ender. I ran it at 70.
You might wanna try .3 for that first layer that I believe is called elephant foot in settings. I had a similar issue and not sure if this will do it for you, but I removed my plate and washed it really well with soap and water. I noticed after lots of prints that sometimes oils from my fingers and residue from other prints were left behind. I will occasionally use the adhesive glue that came with the printer.
That model looks like it has a lot of small parts (harder to print). If itās still being stubborn it might be worth breaking it up into a few smaller batches to reduce the chance of a single part fail messing everything up.
Also maybe itās not an issue with soap or cleaning, since it was tried already, but I took someoneās advice here and grabbed this āsimple as possibleā stuff, which doesnāt have extra junk in it that might contaminate a build plate:
No weird smelly stuff, coloring, anti-microbial nonsense, etc.
I print a lot of very small stuff and when I have an adhesion issue itās always because I was lazy and didnāt clean the part of the plate I used before.
I guess there is also the option of using a smooth plate if that is available. That thing can be a real pain to get small parts off of, even when using the Vision miner nano polymer mentioned above (which is awesome) - stuff sticks a little TOO well on that plate.
For the soap you want the most ānormalā dish soap available, dawn in NA or fairy liquid in europe are the general recommendations. You want to stay away from anything with fragrances, additives or oils. For the actual cleaning, use warm water and a clean sponge. Do not use scotchbrite/steel wool/woven copper scrubbers, only use a normal clean sponge.
Another thing I always do when dealing with bed adhesion issues is to add an 8mm brim to the parts. Brims can be annoying to remove sometimes, but way less annoying than failed prints.
You could also just print in PETG and forget about bed adhesion issues.
