FDM vs Resin 3d Printers in 2026: Key Differences
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Choosing between FDM and resin 3d printer technologies depends on your specific printing needs. Both the Bambu Lab P1S and the ELEGOO Mars 4 Ultra are ready-to-use desktop units designed for home or office use. The primary difference lies in how they create objects. One uses melted filament for speed and versatility, while the other uses liquid resin for extreme detail. Understanding these distinct approaches helps you select the right tool for your projects.
Key differences
| Aspect | Bambu Lab P1S Enclosed 3D Printer | ELEGOO Mars 4 Ultra 9K Resin Printer |
|---|---|---|
| Printing Technology | FDM | MSLA (Resin) |
| Print Speed | 500mm/s | not listed |
| Leveling Type | Automatic Bed Leveling | 4-point leveling system |
| Multicolor Capacity | Up to 16 Colors | not listed |
| Weight | 39 pounds | 18 pounds |
Which one should you choose?
Choose Bambu Lab P1S Enclosed 3D Printer if
- You need fast printing speeds up to 500mm/s for larger projects.
- You want to print in multiple colors using compatible filaments.
- You prefer automatic bed leveling for hassle-free setup.
Choose ELEGOO Mars 4 Ultra 9K Resin Printer if
- You prioritize high-resolution details with an 8520 × 4320 LCD screen.
- You want a lighter, more compact unit at 18 pounds.
- You need Wi-Fi connectivity for wireless file transfers.
Verdict: The Bambu Lab P1S is the better choice for users who value speed, multi-color capabilities, and automated setup. The ELEGOO Mars 4 Ultra suits those who need high-detail resin prints and a portable, lightweight design. Your decision should hinge on whether you prioritize speed and versatility or fine detail and compactness.
FDM vs Resin Printer Comparison
printing technology
The Bambu Lab P1S uses FDM technology, melting filament layers to build objects. This method is standard for durable, functional parts. The ELEGOO Mars 4 Ultra uses MSLA resin printing, curing liquid resin with light for high detail. You choose FDM for strength and ease of use, or resin for smooth surfaces and intricate features. Each approach suits different project types, from prototypes to miniatures.
print speed
Speed is a major factor in your workflow. The Bambu Lab P1S offers a print speed of 500mm/s with 20000 mm/s² acceleration. This allows for rapid production of larger items. The ELEGOO Mars 4 Ultra data does not list a specific print speed value. Instead, it highlights a mono LCD for performance. If fast layer-by-layer output is your priority, the P1S provides clear numerical advantages for volume printing.
color printing
Multi-color capability depends on your design needs. The Bambu Lab P1S supports up to 16 colors when connected to the AMS. This enables vibrant, complex models without manual swaps. The ELEGOO Mars 4 Ultra data does not mention multi-color or multi-material support. Resin printing typically requires post-processing for color changes. If you need immediate, automated multi-color results, the P1S is the superior choice.
leveling
Setup ease affects your daily experience. The Bambu Lab P1S features automatic bed leveling, reducing manual adjustment time. This ensures consistent first layers. The ELEGOO Mars 4 Ultra uses a 4-point leveling system. It also includes a laser-carved build plate for better adhesion. While the P1S automates the process, the Mars 4 Ultra offers manual precision with improved surface grip. Both methods aim for successful prints with different approaches.
build volume
Physical dimensions impact what you can print. The Bambu Lab P1S measures 18 inches in width, 15.3 inches in height, and 15.3 inches in length. It weighs 39 pounds. The ELEGOO Mars 4 Ultra is larger, measuring 22 inches in width, 22 inches in height, and 17 inches in length. It weighs only 18 pounds. The Mars 4 Ultra has a larger footprint, which may matter for small desks, while the P1S is more compact.
Which printer suits your needs best
Users needing durable functional parts
The Bambu Lab P1S uses FDM technology, which is standard for creating strong, functional components. Its enclosed design supports advanced filaments like ABS and ASA. You get reliable prints for practical applications, with automatic bed leveling ensuring consistent results without manual adjustment. This makes it ideal for robust, everyday utility items.
Users wanting high-detail miniatures
The ELEGOO Mars 4 Ultra features a 7-inch 9K mono LCD with 18 µm XY resolution. This allows you to print incredibly complex models with crisp details. The MSLA technology cures liquid resin for superior surface finish. If your focus is on intricate miniatures or jewelry, this resolution provides the clarity you need.
Users prioritizing speed and multi-color
The Bambu Lab P1S offers print speeds up to 500mm/s with 20000 mm/s² acceleration. When paired with the AMS, it supports up to 16 colors for vibrant designs. You can finish prints faster than with most resin printers. The setup takes only 15 minutes, letting you start creating immediately with high efficiency.
Users preferring lightweight desktop units
The ELEGOO Mars 4 Ultra weighs only 18 pounds, making it significantly lighter than the P1S at 39 pounds. It fits easily on most desks. The Linux OS with 4GB RAM ensures smooth operation without lag. You get a compact, efficient machine that handles file transfers via Wi-Fi without requiring a connected computer.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Bambu Lab P1S Enclosed 3D Printer | fast FDM printing with engineering materials | Check price of Bambu Lab P1S Enclosed 3D Printer on Amazon |
| 2 | ELEGOO Mars 4 Ultra 9K Resin Printer | High-detail resin prints and miniatures | Check price of ELEGOO Mars 4 Ultra 9K Resin Printer on Amazon |
The products compared
Bambu Lab P1S Enclosed 3D Printer
Best for: fast FDM printing with engineering materials
- Printing Technology
- FDM (what this guide is about)
- Print Speed
- 500mm/s
- Multicolor Capacity
- Up to 16 Colors
- Leveling Type
- Automatic Bed Leveling
- Motion Structure
- CoreXY
- Features
- High Speed, Enclosed
View on Amazon: Bambu Lab P1S Enclosed 3D Printer Affiliate link
The Bambu Lab P1S is a ready-to-use FDM 3D printer designed for speed and convenience. It reaches 500mm/s print speeds with 20,000 mm/s² acceleration. The enclosed design supports advanced filaments like ABS and ASA. You get automatic bed leveling and multi-color capabilities up to 16 colors with the AMS. It weighs 39 pounds and measures 18x15.3x15.3 inches. This machine suits users who want fast, reliable prints with minimal setup.
Pros
- 500mm/s print speed
- 20,000 mm/s² acceleration
- Enclosed design for advanced materials
- Automatic bed leveling
- Up to 16 colors with AMS
Cons
- Not recommended for carbon or glass fiber reinforced polymers
- No built-in multi-color system included in base model
- Heavier build at 39 pounds
Good fit if
- You need fast print speeds for quick iterations
- You want to print with engineering materials like ABS
- You prefer automatic leveling to reduce setup time
Skip if
- You plan to use carbon fiber reinforced filaments
- You need multi-color printing without adding the AMS
- You prefer resin printing for high-detail miniatures
Verdict: Bambu Lab P1S FDM Printer delivers high-speed FDM printing with an enclosed chamber for versatile material use. It is ideal for makers who value speed and automated setup over raw detail resolution.
ELEGOO Mars 4 Ultra 9K Resin Printer
Best for: High-detail resin prints and miniatures
- Printing Technology
- Resin (what this guide is about)
- Build Volume
- 6.5 × 6.04 × 3.06 inches
- Leveling Type
- 4-point leveling system
- Features
- Wi-Fi
- Color
- Black
- Release Film Type
- ACF
View on Amazon: ELEGOO Mars 4 Ultra 9K Resin Printer Affiliate link
The ELEGOO Mars 4 Ultra is an MSLA resin printer designed for high-detail output. It features a 7-inch 9K mono LCD with 18 µm XY resolution for crisp models. The device includes a 4-point leveling system and Wi-Fi connectivity for file transfers. It runs on a Linux OS with 4G RAM for smooth operation. This desktop unit suits users who prioritize fine surface details and complex geometries over large build volumes.
Pros
- 7-inch 9K mono LCD with 18 µm XY resolution
- Built-in Wi-Fi supports 2.4G and 5G networks
- 4-point leveling system with laser-carved build plate
- Linux OS with 4G RAM for efficient resource management
Cons
- MSLA resin printing requires handling liquid resin and ventilation
- 18-pound weight and 22-inch height limit portability
- 4-inch touch screen resolution is lower than the LCD panel
Good fit if
- You need high-resolution prints for miniatures or jewelry
- You want automatic leveling to reduce setup time
- You prefer wireless file transfer over USB cables
Skip if
- You only print large functional parts requiring big build volumes
- You want to avoid the cleanup process of resin printing
- You need a printer that fits in a small desktop space
Verdict: The ELEGOO Mars 4 Ultra Resin 3D Printer delivers exceptional detail through its 9K LCD and streamlined leveling. It is the right choice for hobbyists who value precision and smooth software performance over speed or size.
Specifications side by side
| Spec | Bambu Lab P1S Enclosed 3D Printer | ELEGOO Mars 4 Ultra 9K Resin Printer |
|---|---|---|
| Build Volume | not stated | 6.5 × 6.04 × 3.06 inches |
| Print Speed | 500mm/s | not stated |
| Printing Technology | FDM | MSLA |
| Multicolor Capacity | Up to 16 Colors | not stated |
| Leveling Type | Automatic Bed Leveling | 4-point leveling system |
| Motion Structure | CoreXY | not stated |
| Structure | CoreXY | not stated |
| Features | High Speed, Enclosed | Wi-Fi |
| Target Audience | Beginners | not stated |
| Color | Black | Black |
| Release Film Type | not stated | ACF |
| Dimensions | 15.3 × 18 × 15.3 inches | 17 × 22 × 22 inches |
| Weight | 39 pounds | 18 pounds |
| Size | P1S (Without AMS) | Mars 4 Ultra |
| Model | P1S | MARS 4 Ultra |
Frequently asked questions
Which printer is better for making strong, functional parts?
FDM printers are the better choice for durable, functional components. The Bambu Lab P1S uses FDM technology, which melts filament layers to build objects. This method creates parts that are generally stronger and more versatile for practical applications. You can use advanced filaments like ABS and ASA to ensure your prints withstand stress and heat.
Which printer produces the highest detail and smoothness?
Resin printers deliver superior detail and surface finish. The ELEGOO Mars 4 Ultra uses MSLA technology, curing liquid resin with light to achieve exceptional precision. Its 9K LCD provides high resolution, making it ideal for miniatures and intricate models. If you value fine details and smooth surfaces over raw speed, resin is the right path.
How do the build volumes compare between these models?
The ELEGOO Mars 4 Ultra is physically larger than the Bambu Lab P1S. The resin printer measures 22 inches in width and height, with a length of 17 inches. The FDM unit is more compact, measuring 18 inches wide and 15.3 inches in both height and length. Your choice depends on whether you need a larger footprint for your workspace.
Is one printer significantly heavier than the other?
Yes, the Bambu Lab P1S is notably heavier. It weighs 39 pounds, reflecting its sturdy, enclosed construction designed for stability during high-speed printing. The ELEGOO Mars 4 Ultra weighs 18 pounds, making it lighter and potentially easier to move. Consider your desk strength and mobility needs when deciding which unit fits your setup best.
Do these printers come in specific colors?
Both featured models are available in black. The Bambu Lab P1S is listed as black, as is the ELEGOO Mars 4 Ultra. This neutral color choice allows them to blend into most home or office environments. You do not need to worry about mismatched aesthetics if you prefer a standard, professional look for your 3D printing station.
Which printer is best for hobbyists who want precision?
The ELEGOO Mars 4 Ultra is ideal for hobbyists prioritizing precision. It delivers exceptional detail through its 9K LCD and streamlined leveling process. This resin printer is designed for users who value high-quality results and smooth software performance. If your projects involve miniatures or detailed art, this model offers the accuracy you need.
Which printer is better for fast printing with engineering materials?
The Bambu Lab P1S is optimized for fast printing with engineering materials. It features an enclosed chamber that supports versatile material use, including high-performance filaments. This FDM printer is designed for makers who value speed and automated setup. You get reliable, high-speed prints suitable for functional parts that require durability and precision in their structure.