ELEGOO Mars 4 MSLA: Is This the Ultimate Budget Resin Printer?

The ELEGOO Mars 4 MSLA is a resin 3D printer that offers high-resolution printing for detailed models. It is part of the Mars series, which has been popular for its affordability and quality. This review covers the design, setup, printing performance, software, and things to consider before buying.

Design and Build

The Mars 4 has a compact and sturdy design. It has a metal frame and a UV-resistant cover that helps protect resin from light exposure. The touchscreen is positioned at the front for easy access. The resin vat is metal, with a well-secured FEP film at the bottom. The build plate is sandblasted, which helps with print adhesion. Overall, the printer looks and feels solid.

Setup and Leveling

Setting up the Mars 4 is straightforward. The printer comes partially assembled. The first step is to remove packaging materials and check that everything is included. Next, the build plate needs to be leveled. The Mars 4 uses a four-point leveling system. This means you loosen the screws on the build plate, lower it to the screen, and then tighten the screws while it is pressed down. Some users prefer a simpler system with a single screw, but the four-point method works well once set up.

After leveling, the resin vat is installed. The printer does not come with resin, so it must be purchased separately. Once resin is poured into the vat, the printer is ready for a test print.

Printing Performance

The Mars 4 has a monochrome LCD screen that provides high resolution. This allows for fine details in prints. It also has a good light source that ensures even curing of resin. Print quality is sharp, and details are well-defined. This makes it suitable for miniatures, prototypes, and other small objects that require precision.

The print speed is decent for an MSLA printer. Because of the monochrome screen, exposure times are shorter compared to older models. However, print speed also depends on the layer height settings. Thinner layers give better details but take longer to print.

One challenge with resin printing is dealing with failures. If a print does not adhere properly to the build plate, it can leave cured resin in the vat. This needs to be carefully cleaned before starting another print. Proper leveling and adjusting exposure settings can help reduce failed prints.

Software and Connectivity

The Mars 4 is compatible with various slicer programs. ELEGOO provides its own software, but third-party options like Chitubox and Lychee Slicer also work. The slicing process is relatively simple: the model is loaded into the software, supports are added, and then the file is saved for printing.

The printer primarily uses USB for file transfers. It does not have Wi-Fi, which means files must be transferred manually using a USB drive. Some users prefer Wi-Fi for convenience, but USB is reliable.

Noise and Smell

Resin printers are generally quieter than FDM printers since they do not have moving extruders. The Mars 4 makes some noise from its cooling fans, but it is not too loud. However, resin printing produces fumes, which can have a strong smell. It is important to use the printer in a well-ventilated space. Some users add air purifiers or ventilation systems to reduce the smell.

Cleaning and Maintenance

Resin printing requires regular cleaning. After a print is finished, excess resin must be drained, and prints need to be washed in isopropyl alcohol. The build plate should also be cleaned to prevent residue buildup.

The FEP film on the resin vat can wear out over time. If it becomes cloudy or gets damaged, it needs to be replaced. This is a normal part of maintaining a resin printer.

Things to Consider

Before buying the Mars 4, it is important to consider a few things:

• Resin Cost: Resin is more expensive than filament used in FDM printers. It also needs to be handled carefully.
• Post-Processing: Prints must be washed and cured after printing. This adds extra steps compared to FDM printing.
• Ventilation: Resin fumes can be unpleasant. Proper ventilation is necessary for safe use.
• Print Size: The build volume is suitable for small and medium prints. Large models need to be printed in parts.

Conclusion

The ELEGOO Mars 4 is a solid resin printer that delivers high detail. It is easy to set up and produces good results. However, resin printing has extra steps like washing and curing, which may not suit everyone. For those looking for precise prints and are willing to handle resin, the Mars 4 is a good choice.