Saturn 4 Ultra

No build plate flatness issue with the Saturn 4 Ultra outside rare individual defects, but it will typically not achieve 100% perfect Z accuracy the first several layers. You will want to use a high amount of Rest After Retract (Chitubox) / Wait time before cure (UVTools) using UVTools for the first

Did it start to fail at the back and split moving forward like this? https://www.reddit.com/r/resinprinting/comments/1n8gh14/help_with_st_flex_black_70a_parts_of_print_stop/ If so it is partially because the resin stretches and the tilt stroke of the S4U is shorter at the back than the front. Fixes are roug

And add more rest before print. Best topic on it. https://www.reddit.com/r/ElegooSaturn/comments/1jwcwg2/fixing_saturn_4_ultra_elephant_foot_and/

All printers need more Rest After Retract (Chitubox) / Wait Before Print (Lychee) / Wait time before cure (UVTools) for the base layers. Your adhesion failure here is because your raft is printed with over thick layers. Almost looks like the raft was failing to adhere from the start or isn't actuall

I recently found this as well. It appears recent firmware to avoid the "lasagna bug" is either skipping layers or skipping the gray pixels when it can't load the image to the LCD fast enough. I have similar results with my own experiments in vertical smoothing / AA here: https://www.reddit.com/r/res

You need Rest After Retract (Chitubox) / Wait time before cure (UVTools name) using UVTools to increase it for the first 10-20 layers to 10-20s. On the lower UV power S4U 12k, I am running base layers around 12-15s exposure for all of 3 base layers and 3-5 transition. UVTools is required as none of

I was going to ask if it was a Saturn 4 Ultra with the crazy thick raft you've got going on in the first picture. When you let it print rafts that far over thickness (what is that 1.7-2.1mm for a 1mm raft?). Your LCD has pressure spot failures, and it is likely because the build plate and overly thi

With the spring-loaded build plate on the Mars 5 Ultra, similar to the Saturn 4 Ultra, it needs extra Rest After Retract (Chitubox) / Wait time before cure (UVTools) for the first 10-20 layers. Around 20-40s for those early layers in the print work well, but probably less for the smaller build plate

Not sure why the thread is all bad advice, but the biggest fix for poor adhesion with the Saturn 4 Ultra 12k* is Rest After Retract (Chitubox) / Wait time before cure (UVTools) for the first 10-20 layers. This is because the automatic leveling and spring-loaded build plate fail to settle the build p

If the Saturn 3 (non-Ultra) is available to you, it's the best bang for your buck and last of the non auto-leveling printers worth buying. Usually less than $270. Heygears is running a sale on the Reflex RS for $499, which is the lowest that printer has ever been. It's probably the only auto-levelin