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Almost every resin printer roundup sorts machines by build volume, price, or LCD resolution. None of them answer the question a lot of people are actually asking, which is whether the thing will fit where they need to put it. If you are printing miniatures in a spare bedroom, on a desk you also work at, or in a closet you would like to keep closing, the limiting spec is the box, not the build plate.
I run an Elegoo Saturn, and it is by a wide margin the largest object on my hobby bench. Nothing else comes close. If you want the standard buying comparison sorted by print quality and price, the best resin printers for tabletop miniatures guide covers that properly. This article is the other axis: which machines are genuinely small, how much space the whole workflow needs beyond the printer itself, and what going small actually costs you in practice.
Fair warning up front. The honest answer to “what is the smallest resin printer” is that the printer is rarely the problem. The wash station, the cure station, the resin bottles, and the ventilated space you need to work in add up to more square footage than the machine does.
Build Volume Is Not Footprint
This trips people up constantly, because manufacturers headline the print size and bury the machine size.
A Mars-class printer has a build plate around 153 x 78mm. That is roughly the size of a paperback cover. From that number you might reasonably guess the machine is a bit bigger than a shoebox. It is not. The chassis has to house the LCD panel, the light source assembly, the Z-axis tower, the resin vat, and a hood tall enough to clear the build plate at full travel.
The result is that a printer with a paperback-sized plate occupies about a square foot of desk and stands nearly a foot and a half tall. The ratio of external size to usable print area on a resin printer is genuinely poor, and it gets worse as you go up in class.
Footprint Comparison
Here are the numbers that matter, using manufacturer-published external dimensions rather than build volume:
| Printer | Desk footprint (W x D) | Height | Build plate | Weight |
|---|---|---|---|---|
| Anycubic Photon Mono 4 (10K) | 231 x 236mm (9.1 x 9.3 in) | 430mm (16.9 in) | 153 x 87mm | Light |
| Elegoo Mars 5 Ultra | 260 x 268mm (10.2 x 10.6 in) | 451mm (17.8 in) | 153 x 78mm | 8.8kg |
| Elegoo Saturn 4 Ultra | 327 x 329mm (12.9 x 13 in) | 548mm (21.6 in) | 212 x 118mm | 14.5kg |
Two things jump out.
The Mars and Photon classes are close. The Anycubic is a bit under 3cm narrower and shallower than the Mars 5 Ultra, which is a real difference if you are fitting the machine into a specific cubby, and no difference at all if you are just putting it on a desk. Do not agonise over it unless you have measured your space and you are within a couple of centimetres.
The Saturn class is in a different category entirely. It is roughly 60% more desk area than a Mars and it is nearly 10cm taller. At 14.5kg it is also heavy enough that you will not casually move it off the desk when you need the desk. I like my Saturn a great deal, and I would not put one on a shared work desk. The Saturn 4 Ultra review covers the case for buying it anyway, because the plate size genuinely changes how you print.
The Height Nobody Accounts For
Footprint is the number people measure. Height is the number that ruins the plan.
Two separate measurements matter here, and only one of them is on the spec sheet. The first is the printer’s own height. The second is the clearance you need above it to lift the hood straight off, which you do before every single print, and again after every single print. Budget roughly 30cm of clear air above the machine for that. If you slide a Mars-class printer onto a shelf with 50cm of vertical clearance, the printer fits and the workflow does not, and you will end up dragging the machine out to the edge of the shelf every time you print. That gets old in about four days.
The practical implication: an open desk with nothing above it beats a taller shelf with a cabinet over it, even if the shelf technically has more room. If a closet is your plan, measure the gap between shelves, not the closet.
The Picks
Best Small-Footprint Machine: Elegoo Mars 5 Ultra
At 260 x 268mm it is not the absolute smallest option on the market, but it is the one I would actually buy for a tight space, because it is small without being a compromise machine.
The 9K panel gives you 18µm XY resolution, which is more resolution than the miniature actually needs at 28 to 32mm. Print speed runs up to 150mm/h, which matters more in a small space than it does in a workshop: faster prints mean the machine is powered up and off-gassing for less time in a room you also live in. Auto-levelling removes the one setup task that most often sends beginners back to a forum.
The build plate is 153 x 78mm, which fits five to seven infantry per run, or one large creature. For a single player printing a party, NPCs, and the occasional monster, that is a perfectly normal working cadence. For batch-printing an army, it is not, and no small printer is.
Best for: anyone whose printer has to share a room with a bed, a desk, or a partner’s patience.
Smallest Chassis: Anycubic Photon Mono 10K
The Anycubic Mono line is the narrowest of the mainstream miniature-capable machines. The current Photon Mono 4 (10K) chassis is published at 231 x 236mm, which is about 3cm tighter in each direction than the Mars 5 Ultra and lands it just under a square foot of desk. Its build plate is actually slightly wider than the Mars at 153 x 87mm, so you are not paying for the smaller chassis in plate area.
Print speed is the trade. The Mono line runs slower than the current Elegoo Ultra machines, and on a long print that is a real difference in hours. If your constraint is a specific shelf width, take the Anycubic. If your constraint is general desk clutter, take the faster machine. Check current pricing on the Anycubic Photon Mono 10K.
Cheapest Way Into a Small Machine: Elegoo Mars 4 Ultra
Same Mars-class chassis, previous generation, frequently under $200. You lose print speed and the newest levelling system, and you keep the 9K panel and the identical build plate. If budget is the binding constraint alongside space, this is the pick, and the budget resin printer article goes deeper on where the savings actually come from.
What Going Small Actually Costs You
Not print quality. This is the part people expect to be a trade and it is not.
A Mars-class machine at 18µm resolves a 28mm face, a weapon haft, and chainmail texture as well as anything you will put on a table. Detail on a printed miniature is governed by support placement, orientation, and exposure calibration long before it is governed by which small printer you bought. A well-supported model off a Mars beats a badly supported model off a Saturn every time.
What you actually give up:
Batch throughput. Five to seven infantry per run instead of ten to fourteen. If you print a squad a month, irrelevant. If you are printing a 2,000-point army, you will feel it in weeks of calendar time.
Large single models. A Huge-class creature with a 75mm base, a big vehicle, or a terrain piece will not fit on a Mars plate in one piece. You can split it in the slicer and glue it, which works fine and is a normal part of the hobby, but it is extra work every time.
Nothing else. There is no resolution penalty, no reliability penalty, and no resin compatibility penalty for buying the small machine.
If you are weighing this against an FDM machine because those seem more space-flexible, the resin vs FDM comparison covers why that trade goes badly for miniatures specifically.
The Rest of the Footprint
Here is the part the printer roundups skip, and it is the reason small-space setups fail.
Wash and cure station. Roughly the footprint of a small blender, and you want it next to the printer, not across the room, because you are carrying a plate covered in liquid resin between the two. A combined unit like the Anycubic Wash and Cure Plus saves space over two separate devices. Full breakdown in the wash and cure station comparison.
A wet zone. Paper towels, a tray to catch drips, IPA or a water-washable workflow, gloves, and somewhere to set a dripping build plate. Call it another square foot of surface that has to tolerate spills. This is not optional and it is not small.
Resin storage. Bottles need to be upright, out of UV light, and reasonably temperature-stable. A cardboard box under the desk works. Sunlight through a window does not.
Ventilation. The real space constraint in a bedroom or closet setup. Resin off-gasses and you should not sleep in the room while it does. This is the single most important thing to plan around and the resin printing safety guide covers the actual requirements rather than the folklore.
Add it up and the printer is maybe a third of the space the hobby needs. The accessories roundup lists the rest of what has to live somewhere.
Where People Actually Put These
On a shared desk. Workable with a Mars-class machine if you can clear it. The problem is not the printer, it is that the wet zone and a keyboard are a bad combination. If the desk is also your work desk, put the wash step somewhere else, even if it is a bathroom counter with a towel down.
In a closet. Popular and mostly good. Watch the shelf clearance for the hood, and watch the ventilation, because a closed closet concentrates exactly what you do not want concentrated. Leave the door open with a fan running, or do not use the closet.
In a garage. Best on space, worst on temperature. Resin gets thick and prints fail below roughly 20°C, which makes an unheated garage a seasonal problem rather than a permanent solution. The cold weather printing guide covers how to work around it, including heater and enclosure setups that are cheaper than they sound.
On a rolling cart. Underrated. A two-shelf utility cart gives you the printer on top, wash and cure and supplies below, and the whole setup rolls to a window when it is running and back into a corner when it is not. For anyone whose real constraint is that the space is shared, this solves more problems than picking a printer 3cm narrower.
Small-Space Questions
Is there a genuinely tiny resin printer, like a shoebox? Not one worth buying for miniatures. There are very small machines aimed at jewellery and dental work, and they cost more, print slower, and have plates too small for a 32mm model with supports. The Mars and Photon Mono classes are the floor for practical miniature printing, and they have been for several generations.
Can I keep it in a bedroom? Only with real ventilation, and ideally not while you are sleeping in it. Run prints when you are out of the room and vent to a window. This is the constraint that should drive your room choice, ahead of desk space.
Does a smaller printer use less resin? No. Resin consumption is a function of model volume and how you support and hollow it, not plate size. The hollowing guide is where the actual savings are.
Will I outgrow it? If you print armies, yes, within a year. If you print for a home campaign, probably never. And a Mars-class machine holds its resale value well enough that upgrading later is not an expensive mistake.
The Recommendation
If space is your binding constraint, buy the Elegoo Mars 5 Ultra. It is small enough for a shared desk, fast enough that it is not running all evening, and it gives up nothing on the detail that actually shows up on a painted 28mm model.
Then spend your remaining planning effort on the workflow around it rather than on finding a machine another 3cm narrower. Sort out where the wet zone goes, how the room vents, and where the resin lives. Get a bottle of ABS-like resin so the models survive being handled at a table, and read the complete beginner’s guide to resin printing before the printer arrives.
The machine is the easy part of the space problem. It is everything that has to sit next to it that decides whether the setup survives contact with the rest of your house.