The Anycubic Photon S is an amazing SLA printer that provides excellent prints with a few minor annoyances. For the price, however, I highly recommend this machine. It features several minor improvements over the previous Photon and is very beginner-friendly, taking only minutes to get your first print going.
The Photon S is a great choice for new users, but the improvements over the original Photon probably aren't large enough for existing Photon owners to make the switch.
- Amazing print quality for the price
- Easy to use
- Up and running in minutes
- Manual bed leveling can be a hassle
- Flimsy housing
- No network/internet connectivity
Who it's for
- People who want to print figurines, jewelry, or other small, highly-detailed models
- People who want to print small models to sell
- People who don't mind a lot of clean-up (this applies to all resin printers)
The Photon S normally retails for $498 but can be found for less, currently around $420, about the same price that the original Photon sold for when it was released. You probably won't get better prints for the price from another SLA printer.
The Photon S arrived well-packaged and absolutely brimming with foam. A large internal foam block keeps the internals from shifting, and the entire unit was encased in a foam cocoon.
Anycubic had the foresight to wrap the Photon's acrylic windows with removable film to prevent scratches.
In the box
In the box, you'll find:
- The Anycubic Photon S
- A 500ml bottle of green UV printing resin
- A dust mask and disposable Nitrile gloves (more on this later)
- A 6A@12V power supply
- A flimsy plastic print-scraping tool
- A USB drive containing the slicing software
- Several hex keys for disassembling the Photon
- Replacement vat lenses
- A stack of disposable funnels with built-in filters
- A few extra screws in case you lose them while disassembling the Photon
- Some documentation that nobody will ever read
Unlike most 3D printers you'll purchase, the Anycubic Photon S comes fully assembled. The only thing you'll need to do is secure the build plate, which attaches in about six seconds using a knob.
Overall, the Photon S is well-designed, and all of its parts have good fitment. All panels fit together nicely, the hinged door operates smoothly, and the machine is very aesthetically-pleasing. I opted for the white model so it would look less utilitarian and more at home in our combination shop/office.
All machined parts have a nice finish and look like they were cast or machined with good tolerances. Despite the overall quality, I do have one major gripe: the plastic panels themselves just feel flimsy. The front door operates smoothly but feels wobbly since the plastic panels are just so thin. Only time will tell whether this becomes an issue, but they definitely could've increased the thickness and quality of the plastic they used for the main housing panels.
The Photon S offers minor but notable improvements over its predecessor. Because these improvements are marginal, this is not a "completely new machine". Nonetheless, Anycubic obviously paid attention to the community's complaints about the original Photon and made some marked improvements to address them:
The Photon S doubles the number of linear guide rails to two, reducing the dreaded Z-wobble that many Photon users have experienced
Updated control UI
Because the Photon and Photon S can't be controlled remotely, you'll spend a lot of time using the built-in control interface. Thankfully, Anycubic fixed many of the annoying issues with the old interface. Larger and more legible buttons and icons mean you no longer need a stylus to control your printer.
Carbon filtration system
The Photon S now features two small activated carbon filters on either side of the unit, greatly reducing fumes and the noxious stench of uncured resin. Nonetheless, like most resin machines, the Photon S still produces a smell. However, the filtration system is a very noticeable improvement that makes it tolerable to remain in the same room while a print is running.
Larger print volume
The Photon S offers a larger print volume than the Photon, adding 10mm to the Z-axis.
This is one compact machine—taking up just 72 in² of space (9"x8"). This makes it ideal for living on your desk or a sturdy shelf, assuming you don't mind the fumes (more on this later).
I was very happy about how little space this printer takes up, especially considering I have two other printers on the same table: My Ender 3 and the unreleased Anycubic Mega X. ;)
Furlexa for scale!
The Photon S offers a print volume of 115x64x165mm (4.5x2.6x6"), making it ideal for printing small, highly-detailed models such as figurines, jewelry, and more. Of course, you can also use it to print parts normally reserved for an FDM printer.
This is a sufficiently large build size for an SLA printer. Most SLA/resin printers feature a small build size, and this will increase over time as they gain prominence and can realize economies of scale.
The Photon S features a 2.8" color TFT touchscreen that's used to control the printer and start prints. Because the Photon S has no network connectivity and SLA printers aren't supported by OctoPrint, you'll be using this screen a lot.
The screen is highly responsive and the redesigned interface is easy to navigate. However, its viewing angle is awful, making the task of leveling the bed a true test of your flexibility. Poor viewing angles are a sign of cheap displays and it's unfortunate that this is where they found further cost savings.
Overall, the display interface functions well.
This printer uses UV-reactive resin; just about any 405nm photosensitive resin will work. The printer ships with a bottle of green Anycubic-branded resin that produces stunning prints.
One great thing about resin printers is you won't see print lines; so you can use crystal-clear resin to print models that appear to be made of acrylic or glass, making this printer perfect for producing figurines and jewelry for sale.
If you've ever used a "normal" (FDM) printer, then leveling the Photon S should seem familiar. I wrote a separate Photon leveling guide, but in a nutshell, you loosen the print head and slide a sheet of paper between it and the print screen.
This process is simple but finicky. In general, the first layer of printing on resin printers is far more important than the first layer on FDM printers. Because of this, you need to level it just right or your prints may fail.
Additionally, it's a scary thought that you control the print head's Z-height manually using the interface as a part of the leveling process; I'm always afraid I'm going to smash it into the delicate LCD screen. It hasn't happened yet, but automatic leveling would've been a nice feature to alleviate this concern.
You should only need to level the print head after several prints, but you should check that the print head's adjustable ball screw hasn't loosened—some users have reported this loosening after several prints, requiring further adjustment.
You can't use traditional slicers such as Cura to slice models for the Photon S (or any SLA printer, for that matter). This is because the printer operates on fundamentally different principles.
.gcode file used by most FMD printers features a set of coordinates and commands to instruct the printer where and when to print. SLA printers, on the other hand, feature a set of "slides", where each layer is part of a larger "flipbook".
The Photon and Photon S use a proprietary
.photons file, which can be generated by either of two pieces of software:
1. Photon Workshop
Photon Workshop is made by Anycubic and included on the USB drive that comes with the printer. However, it crashes if you breathe on it, so I decided early on to ditch it. Additionally, the current version can't hollow models, a common desire for SLA prints.
ChiTuBox is a piece of free and open-source software (FOSS) that slices models for SLA/DLP/LCD printers. It recently added native support for the Photon S and has supported the Photon for a long time. I had a good experience slicing models using it, and my first print was successful.
Of the two, I highly recommend choosing ChiTuBox.
I wrote a full end-to-end Photon/Photon S print guide, but I'll recap the process below.
Prints must be loaded onto a USB drive and inserted into the side of the printer. More annoyingly, the prints have to be in the root directory of the USB drive, or else the printer won't detect the file. How hard would a recursive search or directory feature have been to code? Probably not hard.
Anyways, there's no way to use OctoPrint with any SLA printer and the Photon S has no network connectivity, so you're stuck loading prints like a caveman until the foreseeable future.
After inserting the USB drive into the printer, it's just a few taps to get your print going.
After your print is complete, you'll need to clean it of uncured resin using 99% isopropyl alcohol (IPA). This process is a bit laborious but is specific to any resin printer. I normally submerge the print in IPA for ~3 minutes and then place the print under the sun or a UV lamp until it cures fully.
Printing on the Photon S—or any resin printer—is an exercise in messiness. You're basically turning liquid, uncured resin into a print by zapping the resin with a high-powered UV light. As a result, you need to pay special care to safety protocols during the print process.
Always wear disposable Nitrile gloves (included) and safety glasses (not included) when handling resin or uncleaned prints. Uncured resin can irritate bare skin, especially if you have sensitive skin or allergies.
As with all types of printers, you'll want to print in a well-ventilated area. The printer's activated-carbon air filtration system goes a long way in reducing fumes and caustic resin smells, but it's not a completely sealed environment.
I can only use one word to describe the quality of the prints from the Photon S: phenomenal. For the price, I don't think you'll find an SLA printer that produces better prints. No budget FDM printer on the market can come close to the print quality you'll get from a good resin printer.
The Photon S provides a Z-layer resolution of 10 microns (0.01mm), and an X- and Y-resolution of 47 microns (0.047mm), making it ideal for small, highly-detailed prints of all types.
I decided to print a few test models and scaled them to random sizes at 40 microns (0.04mm). They all turned out great, even at this relatively-low resolution.
If you're looking for small and detailed prints, the Anycubic Photon S provides a great bang for your buck. It's easy to use, quick to set up, and offers the highest quality prints you'll find on any sub-$500 SLA printer.
Where to buy
You can currently find the Anycubic Photon S on Amazon for only $420, $50 off the normal price!