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Chitu Systems Hoopat X4H Quick Release Resin Vat for ELEGOO Saturn 4 Ultra 16K 3D Printers with 3Pcs Pre-Holed PFA Release Film, Swap in 1min for Easy Printing
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AI Verdict
This is a 2.51-pound all-metal quick-release resin vat with pre-holed PFA film, designed for Elegoo Saturn 4 Ultra 16K printers, simplifying film changes to under a minute.
This resin vat is a strong fit for Elegoo Saturn 4 Ultra 16K owners who value efficiency and print consistency. Its screw-free design allows film changes in under a minute, directly addressing a major pain point in resin printing. The all-metal construction and consistent film tension contribute to print reliability.
If the quick-release mechanism isn't a priority, look for a standard metal vat compatible with the Saturn 4 Ultra 16K that allows for generic film use to save on recurring film costs.
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Pros
- Film replacement takes under a minute due to the screw-free clamp design, saving significant time compared to traditional methods.
- The snap-on tray applies consistent pressure across the film, which users report leads to more flawless prints and extended film lifespan.
- Includes pre-holed PFA release film, eliminating the need for manual trimming around the edges during installation.
- Constructed entirely from metal, providing corrosion resistance and preventing warping or deformation even with extended use.
- Features a more pronounced pour spout that reduces dripping during resin changes.
- Holds slightly more resin than the original Elegoo Saturn 4 Ultra vat (625g minimum, 875g maximum).
Cons
- Requires specific pre-perforated films, limiting the use of generic FEP/PFA/ACF sheets unless you punch holes yourself.
- Some early units experienced issues with the heated element failing after a couple of months, though Chitu Systems offered replacements.
- The bottom probe must be precisely aligned with the heating element on the LCD screen during installation to ensure the heating function works correctly.
- One user reported powder coating coming off with IPA, though this was not a widespread issue.
Dimension Scores
The snap-on tray's consistent pressure for film tension is reported to result in flawless prints and clear details.
The screw-free design allows film replacement in as little as 30 seconds, significantly simplifying a typically time-consuming task.
Compatibility is limited to the Elegoo Saturn 4 Ultra 16K, and it requires specific pre-perforated films or manual hole punching for generic sheets.
Its all-in-one metal construction is corrosion-resistant and designed to prevent warping, though some early units had heating element failures.
Best For
- Elegoo Saturn 4 Ultra 16K owners who frequently change resin or release film.
- Users seeking to minimize downtime and simplify maintenance tasks on their resin 3D printer.
- 3D printing enthusiasts who prioritize consistent print quality through evenly tensioned release film.
Not Recommended For
- Users who prefer to use generic, non-pre-perforated release films without punching holes.
- Budget-conscious buyers looking for the absolute cheapest vat replacement, as the quick-change feature adds to the cost.
- Printers other than the Elegoo Saturn 4 Ultra 16K, as this vat is specifically designed for that model.
Watch Out For
- The heated element in some early Hoopat X4H units stopped working after about two months, requiring a replacement from Chitu Systems.
- Installation requires careful alignment of the bottom probe with the LCD screen's heating element to ensure the heating function is active.
- You can't just use any FEP/PFA/ACF sheet; you're locked into pre-perforated films or need to punch holes in generic ones.
Full Specifications
| ASIN | B0FFGSZ19P |
| Item Weight | 2.51 pounds |
| Manufacturer | chitu systems |
| Item model number | Hoopat X4H with 3Pcs PFA Films |
| Package Dimensions | 13.46 x 8.66 x 3.03 inches |
What Buyers Say
The biggest win here is how fast you can swap out the release film; users are raving about getting it done in under a minute, which is a huge relief for anyone who's wrestled with tiny screws. The all-metal build feels sturdy, and the consistent film tension seems to genuinely improve print quality. However, there's a catch with the pre-holed film requirement, meaning you can't just grab any film off the shelf without extra work. Some early adopters also hit a snag with the heating element failing, but Chitu Systems appears to be addressing those issues with replacements.
“Dude, changing the FEP used to be a nightmare, like 30 minutes of fiddling with screws. Now it's literally 30 seconds, no joke. My prints look cleaner too, but seriously, that heater better not die on me like it did for some other people.”
Common Praise
- Film replacement is incredibly fast, often cited as under a minute, thanks to the screw-free clamp system.
- The clamp design provides consistent film tension, which users link to better print outcomes and longer film life.
- The all-metal construction feels robust and resistant to corrosion.
- The pre-holed PFA film simplifies installation by removing the need for trimming.
- The more pronounced pour spout reduces resin drips during transfers.
Common Complaints
- The heated element stopped working for some users after a couple of months, necessitating a replacement.
- Requires specific pre-perforated films, making generic film use inconvenient unless you punch holes.
- Proper alignment of the bottom probe with the LCD's heating element is crucial for the heating function to work.
- One user noted powder coating coming off with IPA, though this wasn't a widespread complaint.
Ownership Tips
- The quick-release mechanism genuinely speeds up maintenance, making film changes less of a chore.
- The pre-holed films are convenient but mean you need to stock up on specific replacements or get good at punching holes in generic ones.
- The metal construction feels more premium and less prone to flexing than plastic alternatives.
- Paying attention to the heating element's probe alignment during installation is key to avoiding 'resin tank error' messages.
- The slightly increased resin capacity is a small but welcome bonus for longer prints.
Frequently Asked Questions
Is the Hoopat X4H compatible with other Elegoo Saturn printers?
No, the Hoopat X4H is specifically designed for the Elegoo Saturn 4 Ultra 16K 3D printer.
Does the Hoopat X4H have a heating function?
Yes, the 'H' in X4H indicates it has a built-in heating function. However, proper installation requires aligning a bottom probe with the heating element on the printer's LCD screen.
Can I use any FEP film with this vat?
The Hoopat X4H comes with pre-holed PFA film and is designed for such. While it can work with third-party release films, you'll need to manually punch the holes yourself.
How much resin does the Hoopat X4H hold?
The Hoopat X4H holds 625 grams at the minimum fill level and 875 grams at the maximum fill level, which is slightly more than the original Elegoo Saturn 4 Ultra tanks.
What should I do if the heating element stops working?
Some users reported issues with the heating element failing. Chitu Systems has acknowledged internal issues and offered free replacements in such cases.
Buying Guide
When you're looking at resin vats for your 3D printer, the big deal is how easy it is to change the release film. That film wears out, and replacing it can be a fiddly, time-consuming mess with lots of tiny screws. A good vat will make this process quick and painless, and also ensure the film is tensioned evenly for consistent print quality. You also want something durable that won't warp or corrode from the resin.
Screw-Free Design
This means you don't have to deal with a dozen tiny screws every time you replace the release film. Instead, you'll use clamps or latches, which can cut down a 30-minute job to under a minute, saving you a ton of frustration and time.
Pre-Holed Release Film
The release film needs to be secured precisely. 'Pre-holed' means the film comes with the necessary holes already punched, so you just drop it in and clamp it down, skipping the tedious step of trimming and punching holes yourself.
All-in-one Metal Construction
Resin is corrosive, and plastic vats can warp over time, leading to print failures. A metal vat, especially one made from corrosion-resistant material, will last longer, maintain its shape, and provide a more stable printing environment.
Alternatives
If this vat doesn't fit your needs, look for alternative resin vats that are compatible with your specific printer model and either offer a similar quick-release mechanism or allow for the use of standard, non-perforated release films if you prefer more film options.



