I have a heavily modified Ender 3 Pro, and have had good and bad times with the buildtac bed (I've replaced many times). I've tried some PEI beds and had mixed results, but I got this one 2-3 months ago and over ~20 prints it's been just fantastic.
Oh, a textured PEI plate? Now that's something I haven't seen. On my own printer I tried the much-hyped G10 PCB material as a bed, and when that didn't work very well I got a PEI sticker to put on top of it, but mine is smooth. I might have to give this a shot though, thanks for the info!
I'm trying to figure out these magnetic plates. My Ender 3 Pro came with a magnetic sheet built in, but I can't tell if the bed itself was magnetic or if that sheet on the base plate was the magnet part. I have another bed attached right now so I can't easily pop it off to see if anything sticks to the base.
Right but that's what I'm trying to figure out. I thought the magnetic side was that baseplate on my printer, but it seems like the removable bed is the part that is magnetic here... which means the spring-steel type PEI sheets may not work here. I guess before I put in an order I'll have to remove the current bed and see if there's any magnetic 'stick' on the baseplate.
You might look at PEX too. I got spring steel plate with it and PLA sticks perfectly and leaves a mirror-like finish. It sticks so good that when I swap filaments and push some through manually with the extruder 50mm up off the bed, the little stringy bit coming out the extruder sticks to the build plate pretty solidly. I have both textured PEI and this smooth PEX and think they both have their purposes depending on what you're printing. The textured plate leaves a really good finish for light diffusing material for example.
My original Creality glass bed was absolutely perfect. I would test new filaments by printing a calicat at 50% (so the little fit that stick to the bed are only 4mm square) and I expected those tests to stick perfectly. Then after 3 years of use the coating wore out and I got a new one from Creality -- it was horrible!!! Absolutely nothing sticks to it, even large prints were getting a lot of curl. I don't know what they changed but it was really disappointing. That's why I ended up playing with the G10 and PEI, and even my smooth PEI bed doesn't have the adhesion my original glass had, so maybe I'll have better luck with textured PEI.