First of all, the AI isn’t working after the latest update; “spaghetti” detection is currently broken, and only the Pressure Advance option is functioning. Someone posted here about getting a plastic blob; that’s due to poor factory bed mesh leveling and the fact that the AI isn’t working.
Loose screws and bad bed adhesion, how to fix, bed mesh.
I want to draw the attention of all SparkX i7 users to this: check your printer’s screws—absolutely every visible screw—to make sure none are loose. My printer arrived with loose screws along the X-axis, both on the linear rail guide and at the X-to-Z axis connections at the rear of the linear rail.
First of all Bad bed adhesion, the bed adhesion issue isn’t caused by a dirty print surface (trust me, i tried everything and now my bed mesh is perfect i dont need to clean my bed at all i can let it for weeks and i dont have problems now), but rather by the bed mesh (leveling map); the printer came from the factory with very poor leveling that gets worse over time. Verify the bed mesh in Fluidd; then, you need to adjust it manually by raising or lowering the bed using the side screws.
I use my printers for work, and with the SparkX i7, I could only print successfully for the first few days; once I really put it to work, the parts would just pop off on their own—it was a total disaster with a lot of wasted filament. I never had a blob (that is something else, the IA STOPED WORKING AFTER LAST FIRMWARE UPDATE, NOW THE IA DONT DETECT SPAGGETHI OR BAD PRINTS, AND MY CREALITY HI THE IA WORKS FINE), but I certainly wasted a lot of material due to detached parts and poor finishes. Eventually, I discovered the problem was the bed mesh. Normally, a bed mesh should have an irregularity range of about 0.2 to 0.3 mm—0.4 mm is tolerable at most—but my SparkX i7 had a variance of 1.0 mm. That’s right, a full 1.0 mm—roughly five times the tolerable amount of unevenness. Basically, the bed was tilted more on some sides than others instead of being perfectly flat. Luckily, this can be fixed manually; the printer design allows us to adjust the height of the four corners because there are screws on the sides that, when loosened, let the bed move up or down. We can correct the unevenness using Fluidd: we check the variance at a specific corner and then—either manually or via printer commands—position the nozzle at Z=0 (matching the Z=0 level at the center of the bed) so that all the corners align with that same center height.