FLSUN
S1 Pro
Based on 56 Reddit mentions
$1099.00
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Most discussed features
Sentiment summary across the product areas Reddit users mention most.
Reddit mentions
Original Reddit posts and comments behind this analysis.
Can’t figure this out
Check the sliced previews. More specifically the layer time, flow, and speed previews. If your layer time preview has the same pattern, try changing your infill type to rectilinear. Check the preview again. If it looks even, or better than it was, try printing it to see if the banding goes away. Sou
...Qjeezy in r/QIDI
October 8, 2025 5:45 PM
6
Can't post it on r/3dprinting till monday, so I'm putting it here
All printers have their place. For mass production my Bambus are my go to but for prototyping my FLSun S1 pro is by far the better machine
Ancient_While8201 in r/BambuLab
August 1, 2025 10:32 AM
5
The FLSUN S1 promises speed but the print quality is poor. What should I do?
Install Viking3DK Orca profiles to get high print quality. https://www.printables.com/model/1426214-flsun-s1-s1pro-orca-profiles-v10/related
Groo2001 in r/Flsun_official
March 28, 2026 3:34 AM
2
give me your honest reviews of FLSUN
I love my S1 Pro, though it took a week of dialing in and figuring out settings to make it print at a similar quality to my Bambu A1 Mini. But once that was figured out, it’s been great! Print quality is fantastic and it’s so fast, even with my setting tuned to favor print quality! One thing I’ve ex
...Artholos in r/Flsun_official
June 14, 2025 5:02 AM
3
S1 OR S1 PRO
AI to the rescue The FLSUN S1 and S1 Pro are both high-speed delta 3D printers, and they share many core features. However, the S1 Pro is an updated version that brings several key improvements and refinements. Think of it less as a complete overhaul and more as an "S1.5" with enhancements that impr
...Iostminds in r/Flsun_official
September 4, 2025 3:36 AM
3
FLSUN S1 - FREE
I have an S1 pro and I'm feeling the same. Not quite giving it away yet, but I'm on effector #3 and it worked all of 1 second before getting a clog that required full disassembly. FLSUN support hasn't responded to my email (it's been weeks). Printer has been down probably 8.5 of the ten months I've
...Srcc in r/FLSUNDelta
November 10, 2025 5:03 PM
3
"Wooden" Vase
The biggest issue I had with the S1 even after the motor upgrades is the persistant salmon skin that would materalize on the outer wall of every print when you print at slower speeds, especially vase mode. After a year of troubleshooting with FLSUN including firmware updates of motors with a spcial
...Dudditz77 in r/FLSUNDelta
May 28, 2025 8:18 PM
2
Give me your opinions on the FLSun S1
DO NOT BUY THE DAMN S1. THE PRINTER SUCKS, THE COMPANY SCAMS YOU AND ITS A WASTE OF MONEY. I bought my first FLSUN back in December and it was the t1. It broke a couple months in. The replacement t1 pro broke in a month and the so called upgrade the s1 pro has been defective since arrival. I’m buyin
...OwnBat7882 in r/Flsun_official
November 26, 2025 12:17 AM
1
Advice on these listed printers
Bambu are excellent printers, but every printer has its issues. The ecosystem from Bambu is so closed down which personally drove me away. The ability for you to go on MakerWorld and grab the 3MF file and send it to your printer without any guesswork is very nice, which is probably why it’s such a g
...MurkyCup1554 in r/3dprinter
January 8, 2026 5:44 PM
1
S1 Pro and Customer Support
I have an S1 Pro. It’s FAST. It sounds like an alien fight when running. It produces pretty decent parts. If you wanted to print slow materials, I wouldn’t bother. But if you’re slapping in high speed filaments… it’s hard to beat. I did flash mine with the FLSUN Open Source firmware which has been a
...MurkyCup1554 in r/FLSUNDelta
January 12, 2026 3:47 PM
1