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How to Choose Your First Resin Printer as a Scale Modeler in 2025?

Writer's picture: Print ReplicaPrint Replica

Updated: 2 days ago

Here are our recommendations for 3D resin printers as of January 2025:

  1. Best resolution printer

Elegoo Saturn 4 Ultra 16K
Elegoo Saturn 4 Ultra 16K
  • xy resolution of 14*19μm, highest resolution on the market

  • 211.68*118.37*220mm (8.33*4.66*8.66 in) print size, compatible with all models on our website

  • Lowest price in its resolution category at $499.99


  1. Best budget printer

Elegoo Saturn 3 12K
Elegoo Saturn 3 12K
  • xy resolution of 19*24μm, pixels are slightly larger than those of the Saturn 4 Ultra 16K

  • 218.88*122.88*250mm (8.62*4.84*9.84 in) print size, slightly larger than the Saturn 4 Ultra 16K, compatible with all models on our website

  • Lowest price in its resolution category at $259.99, -48% compared to the Saturn 4 Ultra 16K, and it's literally the price of a good airbrush


  1. Best small-sized printer

Anycubic Photon Mono 4
Anycubic Photon Mono 4
  • xy resolution of 17*17μm, highest resolution on the market

  • 153.4*87*165mm (6.04*3.43*6.50 in) print size, compatible with small models such as 1/35 or 1/72 scale figurines and accessories (weapons etc.)

  • Lowest price in its resolution category at $199


Pixel size comparison of the 3 printers we recommend
Pixel size comparison of the 3 printers we recommend
 

Let's take a deeper dive into our methodology on comparing resin 3D printers


Did you know that the Elegoo Mars 5 Ultra 9K printer is actually more precise than the Elegoo Saturn 3 which is a 12K printer? We will walk you through the real meaning of marketing jargons such as "9K LCD screen size", "8520*4320 resolution", "xy resolution", "18*18μm pixel" and help you find the best printer at the lowest price from the scale modeling perspective using 3 criteria: precision, print volume and price.


  1. Printer's precision

To understand the precision of a given printer, we first look at X and Y axis, then we look at the Z axis.

Let's take the specifications of the Elegoo Mars 5 Ultra as an example to explain how to compare the precision of a printer.

Specifications of the Elegoo Mars 5 Ultra from Elegoo's website
Specifications of the Elegoo Mars 5 Ultra from Elegoo's website

XY resolution: The resolution of the X and Y axis are often expressed using 2 metrics: "xy resolution" and "pixels".

In the specifications, 18*18μm XY resolution means that each pixel is a square with side length of 18 microns (0.018 mm). 9K LCD screen size means that the UV screen length is composed of 8,520 such pixels (rounded up to 9K). If we do some quick math, 0.018*8520=153.36mm, which matches the length of the advertised build volume length of 153.36 x 77.76 x 165 mm³.

XY resolution determines the precision of the printer
XY resolution determines the precision of the printer

If we come back to the example from the introduction, the Elegoo Mars 5 Ultra 9K printer has 18*18μm xy resolution, whereas the Elegoo Saturn 3 12K printer has 19*24μm xy resolution. The Saturn 3 has more pixels, but the Mars 5 has smaller pixels.


To sum up, if you want to compare printer precision, you shouldn't look at the 9K number because it's just the number of pixels and not its size. Instead, you should only compare the XY resolution of 18μm, which is the actual size of a pixel.


Z-axis resolution: The resolution of the Z axis equals to the layer height of the printer. For Mars 5 Ultra, the Z-axis accuracy is 0.02mm.


  1. Print volume

Print volume is another important criteria to consider before buying a resin printer. If you buy a printer that is too small, it would be impossible to print larger models unless you chop it into many smaller pieces, which requires even more work to reassemble and increases fit issues.


Resin printers can be classified into 3 size categories:


Small size: 1-2 liters, for modelers who only print small models such as 1/35 or 1/72 scale figurines and accessories (weapons etc.)


Small sized printers
Small sized printers

Medium size: 6-7 liters, for modelers who print full vehicle models from 1/72 up to 1/12 scale. For vehicle models (aircrafts, tanks, cars, ships etc.) on Print Replica, the minimum print volume for your printer is 211*118*220mm or 8.31x4.65x8.66 inch, which is the size of medium-size printers.

Medium-sized printers
Medium-sized printers

Large size: >10 liters, for modelers with deep pocket who want to print large vehicles or action figure size figurines with high precision in one piece.

Large-sized printers
Large-sized printers
  1. Price

An affordable brand new resin printer should cost in the $200-300 price range.

Another way to get cheaper printers is to find refurbished 2nd hand printers on the manufacturer's website.

This "Good used" condition Saturn 3 Ultra is selling at $200 instead of $299.99
This "Good used" condition Saturn 3 Ultra is selling at $200 instead of $299.99
Don't buy "Damaged for fix up" or "Damaged condition printers"
Don't buy "Damaged for fix up" or "Damaged condition printers"

  1. Other features

Manufacturer are coming up with fancy features like automatic leveling, Wi-Fi remote control, automatic resin filling etc. In our opinion, some of them are nice to have, some others are useless gadgets. As modelers, we shouldn't pay extra money on anything other than print volume and XY resolution.

Anycubic Photon M3 Plus with automatic resin filling system, which is a useless gadget
Anycubic Photon M3 Plus with automatic resin filling system, which is a useless gadget

  1. We don't think reliability is important

Reliability is an important criteria in choosing FDM filament printers. However, the reason why we didn't mention it for resin printers is because we don't think it matters that much for resin printers.


Resin printers are mechanically extremely simple. There is only one single motor (Z-axis) moving the build plate up and down. On the contrary, FDM printers have at least 5 motors (X-axis, Y-axis, Z-axis, extruder, extruder fan) and more probability for things to go wrong.


When a resin printer breaks down, is most likely due to user error rather than a component breaking down by itself. So you shouldn't be paying extra money for supposedly "more reliable" resin printers.

Z-axis motor is the only moving part in a resin printer
Z-axis motor is the only moving part in a resin printer

Which is the best resin printer for scale modeling in January 2025?

To conclude this article, we're going to rank all resin printers using the 3 most important criteria for scale modelers: XY resolution, build volume and price.


First, to compare apples to apples, we separated resin printers into small, medium and large size category. Then, we ranked them using XY resolution with smallest values (more precise pixels) on top. Finally, we ranked the printers from cheapest to most expensive within each resolution category.


We also determined a reference printer (in red) in each printer size category that has the smallest pixel size and lowest price in that pixel size category. Then we added the Pixel size increase column to calculate how much bigger a given printer's pixels are compared to the reference printer. Similarly, we also added the Price discount column to calculate how much cheaper is a given printer compared to the reference printer.


For vehicle models (aircrafts, tanks, cars, ships etc.) on Print Replica, the minimum print volume for your printer is 211*118*220mm or 8.31x4.65x8.66 inch, which is the size of medium-size printers.


Medium-sized printer (for up to 1/12 vehicles and figures) ranking:

Brand

Model

XY resolution (μm)

Pixel size increase

X (mm)

Y (mm)

Z (mm)

Build volume (L)

Price ($)

Price discount

Elegoo

Saturn 4 Ultra 16K (reference printer)

14*19

0%

211.68

118.37

220.0

5.5

500

0%

Uniformation

GK3

14*19

0%

211

118

240.0

6

670

34%

Uniformation

GK3 pro

14*19

0%

211

118

240.0

6

800

60%

Anycubic

Photon Mono M7

16.8*24.8

57%

223

126

230.0

6.5

429

-14%

Creality

Halot-Mage S 14K

16.8*24.8

57%

223

126

230.0

6.5

459

-8%

Anycubic

Photon Mono M7 Pro

16.8*24.8

57%

223

126

230.0

6.5

549

10%

Phrozen

Sonic Mighty Revo

16.8*24.8

57%

223

126

235

6.6

768.88

54%

Elegoo

Saturn 3

19*24

71%

218.88

122.88

250

6.7

259.99

-48%

Elegoo

Saturn 3 Ultra

19*24

71%

218.88

122.88

260

7

299.99

-40%

Elegoo

Saturn 4

19*24

71%

218.88

122.88

220

5.9

299.99

-40%

Elegoo

Saturn 4 Ultra

19*24

71%

218.88

122.88

220

5.9

399.99

-20%

Phrozen

Sonic Mighty 12K

19*24

71%

218

123

235

6.3

571.99

14%

Phrozen

Sonic Mighty 8K

28*28

195%

218

123

235

6.3

499.99

0%

Creality

Halot-Mage 8K

29.7*29.7

118%

228

128

230

6.7

209

-58%

Uniformation

GK2

29.6*29.6

118%

228

128

245

7.2

749.99

50%

Using our methodology, the reference medium-sized printer is the Elegoo Saturn 4 Ultra 16K because it has the smallest pixel size of 14*19μm and cheapest price of $500 among printers with the same pixel size category.

However, the Anycubic Photon Mono M7 has 57% bigger pixel sizes, but is selling at only $429, which is a -14% price discount compared to the reference printer. You would lose some precision but save $71.

If we go further down the list, the Elegoo Saturn 3 has 71% bigger pixel sizes, but it's selling at only $259.99, which is a -40% price discount to the reference printer. It's a great deal for modelers with a tighter budget who still want a relatively precise printer.


Small-sized printer (for small figures and accessories) ranking:

Brand

Model

XY resolution (μm)

Pixel size increase

X (mm)

Y (mm)

Z (mm)f

Build volume (L)

Price ($)

Price discount

Anycubic

Photon Mono 4 (reference printer)

17*17

0%

153.4

87

165.0

2.2

       199

0%

Anycubic

Photon Mono 4 Ultra

17*17

0%

153.4

87

165.0

2.2

       259

30%

Elegoo

Mars 4

18*18

12%

153.36

77.76

175.0

2.1

       160

-20%

Elegoo

Mars 4 Ultra

18*18

12%

153.36

77.76

165.0

2

       210

6%

Elegoo

Mars 5 Ultra

18*18

12%

153.36

77.76

165.0

2

       270

36%

Phrozen

Phrozen Sonic Mini 8K S

22*22

67%

165

72

170.0

2

       300

51%

Phrozen

Sonic Mini 8K

22*22

67%

165

72

180.0

2.1

       335

68%

Elegoo

Mars 5

35*35

324%

143.43

89.6

150.0

1.9

       180

-10%

Anycubic

Photon D2

51*51

800%

130.56

73.44

165.0

1.6

       399

101%

Phrozen

Phrozen Sonic Mini

62.5*62.5

1252%

120

68

130.0

1.1

       150

-25%

Similarly, the small-sized reference printer is the Anycubic Photon Mono 4 because it has the smallest pixel size of 17*17μm and cheapest price of $199 among printers with the same pixel size.

However, the Elegoo Mars 4's pixel size is 18*18μm which is almost the same compared to the 17*17μm reference printer (we even wonder if it's just a rounding difference?), but it's selling at only $160, which is a 20% price discount to the reference printer, which would also be an even better deal.


Large-sized printer (for large vehicles and figures) ranking:

Brand

Model

XY resolution (μm)

Pixel size increase

X (mm)

Y (mm)

Z (mm)

Build volume (L)

Price ($)

Price discount

Uniformation

GK3 Ultra (reference printer)

20*26

0%

300

160

300.0

14.4

    1,300

0%

Phrozen

Sonic Mega 8K S

43*43

256%

330

185

300.0

18.3

    1,320

2%

Anycubic

Photon M3 Max

46*46

307%

298

164

300.0

14.7

       669

-49%

Anycubic

Photon Mono M7 Max

46*46

307%

298

164

300.0

14.7

       849

-35%

Elegoo

Jupiter SE

51*51

400%

277.848

156.264

300.0

13

       670

-48%

Finally, the large-sized reference printer is the Uniformation GK3 Ultra because it has the smallest pixel size of 20*26μm but is selling at $1300.

However, although the Anycubic Photon M3 Max has a 307% bigger pixel size, it's selling at only $669, which is a 49% price discount to the reference printer, which would save you a lot of money while sacrificing some accuracy.

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