Saturn 4 Ultra

Elegoo

Saturn 4 Ultra

93 positive 0 neutral 31 negative

Based on 124 Reddit mentions

$426.99

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Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featuremaintenanceClear feature

New to Resin - which saturn?

Generally speaking the Saturn 4 Ultra 16k is the best option for most people. I investigated and wrote the original post explaining the 3-bit grayscale deficiency and it is still present. I also bought a S4U 16k and subsequently worked out a dithering method with UVTools to restore a significant por

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DarrenRoskow in r/ElegooSaturn

May 4, 2026 7:34 PM

8

My favorite reviews <3 I love my customers!

Thanks! I’m using a Elegoo Saturn 4 ultra. That model using a different type of FEP film that helps to blend out layer lines. I also set the layer height really low. My print times are outrageous for the size but I have two Saturns so that makes up for it. If you’re completely new to 3D printing, I

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TNYBBY in r/EtsySellers

December 14, 2025 6:57 PM

10

Elegoo Saturn 4 Ultra 16k - Water Washable

I'll just assume it bots or something, but for whatever reason, this thread is just filled with wrong answers. Well, technically the Wait time before print suggestion is correct, but is still useless because it fails to provide any guidelines for settings or why it works. Rest / Wait time is why you

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DarrenRoskow in r/ElegooSaturn

March 25, 2026 4:57 AM

9

Best resin printer for a first time buyer

You have to consider the cost of materials, parts, and peripherals in your budget. You’ll want a way to wash and cure, whether that be the elegoo dedicated wash and cure stations, or your own makeshift solution. You’ll want to factor in FEP/PFA film. You’re going to eventually have to replace the LC

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I_NEED_APP_IDEAS in r/resinprinting

December 22, 2025 5:39 PM

8

Photon P1 vs Saturn 4 Ultra 16k

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

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DarrenRoskow in r/resinprinting

April 12, 2026 7:19 PM

7

Magforms Elastic 600

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

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DarrenRoskow in r/resinprinting

April 26, 2026 9:34 PM

5

Screen's end of life ?

Those black dots ? Yep, screen is dead. You bought it in 2023 ? Either you don't print often, or you're very lucky. Prints don't hold for long across multiple prints. It's perfectly normal, ask yourself : why your printer has a 1 year warranty, except the screen which has a 6 months warranty ? And a

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Meowcate in r/resinprinting

May 5, 2026 5:35 PM

4

Was this a valid FEP change?

Theyre a pain to change, at least in the Elegoo Saturn 4U it has like a million screws. I wish they would improve this somehow.

Nepu-Tech in r/resinprinting

October 21, 2025 11:09 PM

8

Been having some issues on a print with my saturn 4 ultra

Just going to copy-paste my comment from a couple weeks ago on the matter of S4U dead LCDs: For you next LCD, definitely look into use Rest After Retract (Chitubox) / Wait time before cure (UVTools name) via UVTools for the first 20 layers or so like the following settings: https://www.reddit.com/r/

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DarrenRoskow in r/ElegooSaturn

November 9, 2025 8:35 PM

7

Suddenly getting these "flakes" in my prints, could use help.

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

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DarrenRoskow in r/ElegooSaturn

July 5, 2025 3:39 AM

7

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