---
product_id: 546641557
title: "ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer"
brand: "elegoo"
price: "AR$1407042"
currency: ARS
in_stock: true
reviews_count: 13
category: "Elegoo"
url: https://www.desertcart.com.ar/products/546641557-elegoo-mars-4-ultra-msla-desktop-resin-3d-printer
store_origin: AR
region: Argentina
---

# COB 405nm UV light source 6.04×3.06×6.89 in build volume 7" 9K Mono LCD, 8520x4320 px ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer

**Brand:** elegoo
**Price:** AR$1407042
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your 3D printing game with precision and power that demands attention!

## Quick Answers

- **What is this?** ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer by elegoo
- **How much does it cost?** AR$1407042 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/546641557-elegoo-mars-4-ultra-msla-desktop-resin-3d-printer)

## Best For

- elegoo enthusiasts

## Why This Product

- Trusted elegoo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Consistent UV Curing:** Advanced COB light source ensures uniform exposure and superior print accuracy across the entire surface.
- • **Generous Build Volume:** Print larger, more ambitious projects with a spacious 6.04×3.06×6.89 inch build area without compromising detail.
- • **Effortless User Control:** Intuitive 3.5-inch touchscreen with real-time progress and model preview keeps you in command from start to finish.
- • **Reliable Print Adhesion:** Laser-carved build plate guarantees your creations stick perfectly, reducing failed prints and wasted resin.
- • **Ultra-High Definition Precision:** Experience razor-sharp 18μm XY resolution for flawless, intricate 3D models every time.

## Overview

The ELEGOO Mars 4 MSLA 3D Printer features a cutting-edge 7-inch 9K monochrome LCD delivering ultra-fine 18μm XY resolution, a sizable 6.04×3.06×6.89 inch build volume, and a powerful COB 405nm UV light source for consistent, high-quality resin prints. Its laser-carved build plate enhances adhesion, while the user-friendly 3.5-inch touchscreen offers real-time monitoring and easy adjustments, making it ideal for both beginners and pros seeking detailed, reliable prints.

## Description

desertcart.com: ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer | 7" 9K Mono LCD, Wi-Fi Connectivity, ACF Release Liner Film, 6.5 × 6.04 × 3.06 inches Printing Size : Everything Else

Review: A great printer from a great company! - [Original two-star review, published 11/30/23:] Coming from a Longer Orange10 printer with the resolution of a potato (115μm), the Elegoo Mars 4 Ultra I received was still technically an improvement, but I have to fault the quality control at the factory for ever sending this thing out, and some questionable design choices for making the problem severe enough that I simply had to return the entire unit. First things first, the deal-breaker: the leadscrew came bent. Not just a little bent, but bent right at the bottom by the motor such that the opposite end wiggled about an inch side-to-side as it rotated (shown in the video clip). This caused wobbly artifacts in the test print I did, which you can see in one of the photos. The linear rail is remarkably stable and consistent, so the print still succeeded, but it still couldn't totally compensate for how bent the leadscrew was. Straight vertical lines on the print came out wavy, with the period of the waves corresponding to the pitch of the leadscrew. The second problem, which I could've coped with on its own, was that the entire cast aluminum plate that the resin vat, z-axis assembly, and lower chassis bolt onto was somehow also bent, creating a gap (pictured) at the back of the printer. The gap was only about an eighth of an inch wide, but the problem was that it let a lot of un-shielded UV light out, which of course is an eye-safety hazard. I could have just put electrical tape over the gap, but I still don't know how anyone could have missed that if they actually tested it before shipping as they claim. Finally, the "questionable design choices" I mentioned above are threefold, and they all pertain to the z-axis. First, there's no support bearing or other structure to receive the end of the leadscrew opposite the motor, so it's just free at that end, which is what allowed my bent one to wiggle so much (and perhaps allowed it to become bent in the first place). The second odd design choice was that the leadscrew isn't attached to the motor shaft with a coupler, it *is* the motor shaft, meaning the entire stepper motor/leadscrew assembly must be replaced if the leadscrew becomes damaged. The final choice I can't understand involves the sensor for zeroing the build plate arm. It's located at the bottom of the z-axis instead of the top, which renders the "set z=0" function effectively useless, since it still has to pass the sensor at the bottom to know where 0 is supposed to be. In the end, I might still re-buy this printer model (if desertcart ever issues me my refund now that I've returned it to them), since on paper it's still the best 3D printer for me, but this whole experience has been awful for me and meant that I'm not going to be able to make people ornaments in time for the holidays like I'd planned, so I wanted to go ahead and let people know that this stuff can and does happen and to be wary of it. [Update as of 12/12/23:] A few days after I wrote my original review, Elegoo customer service reached out to me (the first time a seller/manufacturer has ever done that in response to my review) to extend their apologies for my trouble, offer me a full refund, and ask me to give them another chance. I'd heard that Elegoo has the best customer service, and it seems I heard correctly. Their message gave me the confidence to order a new Mars 4 Ultra, and I'm glad I did, as the new printer works flawlessly. (I can still see a little UV light if I look at it at just the right angle during printing, but it's minor, and nothing is bent this time. I may eventually add a strip of thin, adhesive-backed foam between the chassis components to create a better light-blocking seal, but I doubt it's necessary.) It was a mistake to contact to desertcart's customer service before Elegoo's, as the latter has been wonderful to work with, even reaching out to make sure that I was happy with the replacement printer I ordered and reminding me that I can always contact them with any questions/issues. In light of my customer service experience, and the quality of the printer I got to replace the first one, I'm upgrading my review to five stars. I can now say that I wholeheartedly recommend this printer, even knowing that significant problems can occur, because I know that Elegoo has my back if and when those problems occur. Seriously, if something is wrong, contact them first. You'll be glad you did.
Review: UPDATED: This printer is impossible to level.... - UPDATE: IT's a quality control thing... Elegoo reached out to me and desertcart sent out a new Mars 4 Ultra. I was having the same issue with the new unit. I tested both build plates and could not get them to level without excessively pressing them into the LCD screen. I went back to the original base, used the new build plate and was finally able to get this thing to level. Just an FYI you must remove the resin tank, loosen all 4 screws, retur the unit to zero (with the card in place), press the build plate firmly against the card and tighten the screws, then adjust the z offset back down on the card by 0.1mm until the card no longer moves with minimal effort, then you can set your new zero. Once this was done and I used the proper exposure settings (FYI big shout out to Fauxhammer on youtube for giving me some pointers) I have been able to get 3-7 prints at a time without needing to re-level the build plate. I'd say this is a good resin printer, it is just a tricky hobby. So be ready to do a lot of your own research and trouble shooting!!! This is not a hobby for someone who does not like to tinker, you will be test printing calibrations way more than fun stuff in the beginning, but this should be true with any printer you buy. You will need to know your printer and the resin settings for all you favorites. Sorry I'm a little long winded on this... I have a lot of thoughts but if you made it this far I by no means discount this Elegoo Mars 4 Ultra. It does what it is intended to do and does so with decent quality for a printer under $300 and it is my opinion that you could not go wrong by purchasing either Mars 4 printer. Just know the hobby you are committing to. Oh and Elegoo, if you are reading this, thank you for your constant communication through this but please also do mind the QC process because you do have a good product. I received this printer on Friday and have had failed print after failed print. The print bed cannot be leveled... facing the front of the machine the left side will hold the paper but the right freely slips out. I have only been able to get on successful print by going to zero getting level best I can with the set screws tightened. Then move the bed down 1mm as many times as I can until the paper will not move anymore and backing off by .1mm at a time until I find it is set. My problem with this method is I'm very concerned it will damage the LCD and I can find any instructional videos that show anyone in their right mind utilizing this method. I have spent all weekend waiting for prints to fail, then draining and cleaning the printer, only to go through the whole process again. This last time I finally had some lubricated to apply to the release film which did not help the issue at all. I'm at a loss and I'm hoping that the Elegoo customer service will help with this issue as I really need this printer for work and school. Sorry for the rant but I hope this is helpful to others looking into this printer and I will update when I have more information.

## Features

- 【7-Inch 9K Mono LCD】Equipped with a 7-inch 9K mono LCD offering an impressive 8520 × 4320 resolution and 18 µm XY resolution, ELEGOO Mars 4 Ultra resin 3D printer allows you to print incredible complex models with crisp details. The mono LCD is protected by a 9H hardness tempered glass, ensuring it withstands daily wear and tear while maintaining optimal performance.
- 【Powerful Linux OS】ELEGOO Mars 4 Ultra resin printer built-in 4G RAM and no more delay loading files, the Linux operating system ensures faster & smooth operation and efficient resource management.
- 【Wi-Fi Connection】Effortlessly transfer files via the built-in Wi-Fi connectivity, ELEGOO Mars 4 Ultra 3D resin printer supports both 2.4G and 5G networks with a transfer speed of 6-10 Mbps, eliminating the need for cumbersome cables.
- 【Effortless Leveling】The 4-point leveling system makes setup a breeze, and after one leveling, no need to repeat leveling, ensuring perfect prints every time. The laser-carved surface on the build plate offers improved adhesion, reducing the risk of print failures. Brand new ACF release liner film with less release tension for a high printing success rate even at a faster printing speed.
- 【User-Friendly Touch Screen】Navigate easily with the 4-inch HD IPS touch screen with a resolution of 800 × 480 pixels and support for 12 languages, making operation a breeze for users of all skill levels.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #8,167 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in 3D Printers |
| Brand | ELEGOO |
| Color | Black |
| Compatible Devices | Laptop, Personal Computer |
| Customer Reviews | 4.0 out of 5 stars 153 Reviews |
| Item Weight | 18 pounds |
| Material | ABS, Aluminum , Polycarbonate |
| Product Dimensions | 23.82"D x 11.22"W x 10.63"H |

## Product Details

- **Brand:** ELEGOO
- **Color:** Red
- **Item Weight:** 16 Pounds
- **Material:** ABS, Aluminum, Polycarbonate
- **Product Dimensions:** 8.94"D x 8.94"W x 17.24"H

## Images

![ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer - Image 1](https://m.media-amazon.com/images/I/715TfjoArIL.jpg)
![ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer - Image 2](https://m.media-amazon.com/images/I/61cS2POEIhL.jpg)
![ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer - Image 3](https://m.media-amazon.com/images/I/81gfhKNc9tL.jpg)
![ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer - Image 4](https://m.media-amazon.com/images/I/71xeQahlMUL.jpg)
![ELEGOO Mars 4 Ultra MSLA Desktop Resin 3D Printer - Image 5](https://m.media-amazon.com/images/I/718zst8M6ZL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: 1, The printer won't turn on, what should I do?**
A: Remove the USB drive, restart the machine to see if it starts normally, non-original USB drives will cause something wrong.Also check for resin leaks.Check if the adapter has the correct 24V output Or try other 12V adapters, is the machine turned on?

**Q: 2, What should I do if the Mars 4 printer does not stick?**
A: Please check if the exposure of the machine is in good condition.If the UV light is not on, need to make sure whether the adapter is the correct 24V input.If other 12V adapters are used, will lead to insufficient uv energy.

**Q: 3, Z-axis is stuck, what should I do?**
A: Whether there is resin leakage into the motor part.Please turn off the machine, use your hand to rotate the z-axis screw to lift the build plate.Please reinstall the screws here, don’t tighten too much.Add lubricating oil on the guide rail and screw.

**Q: 4, How do I load new firmware?**
A: A:You only need to update the files and copy the files to the root directory of the disk.B:Insert the U disk into the printer. C:Restart the machine,LCD will be updated automatically,there will be beeping sound if successful and restart the machine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great printer from a great company!
*by T***D on November 30, 2023*

[Original two-star review, published 11/30/23:] Coming from a Longer Orange10 printer with the resolution of a potato (115μm), the Elegoo Mars 4 Ultra I received was still technically an improvement, but I have to fault the quality control at the factory for ever sending this thing out, and some questionable design choices for making the problem severe enough that I simply had to return the entire unit. First things first, the deal-breaker: the leadscrew came bent. Not just a little bent, but bent right at the bottom by the motor such that the opposite end wiggled about an inch side-to-side as it rotated (shown in the video clip). This caused wobbly artifacts in the test print I did, which you can see in one of the photos. The linear rail is remarkably stable and consistent, so the print still succeeded, but it still couldn't totally compensate for how bent the leadscrew was. Straight vertical lines on the print came out wavy, with the period of the waves corresponding to the pitch of the leadscrew. The second problem, which I could've coped with on its own, was that the entire cast aluminum plate that the resin vat, z-axis assembly, and lower chassis bolt onto was somehow also bent, creating a gap (pictured) at the back of the printer. The gap was only about an eighth of an inch wide, but the problem was that it let a lot of un-shielded UV light out, which of course is an eye-safety hazard. I could have just put electrical tape over the gap, but I still don't know how anyone could have missed that if they actually tested it before shipping as they claim. Finally, the "questionable design choices" I mentioned above are threefold, and they all pertain to the z-axis. First, there's no support bearing or other structure to receive the end of the leadscrew opposite the motor, so it's just free at that end, which is what allowed my bent one to wiggle so much (and perhaps allowed it to become bent in the first place). The second odd design choice was that the leadscrew isn't attached to the motor shaft with a coupler, it *is* the motor shaft, meaning the entire stepper motor/leadscrew assembly must be replaced if the leadscrew becomes damaged. The final choice I can't understand involves the sensor for zeroing the build plate arm. It's located at the bottom of the z-axis instead of the top, which renders the "set z=0" function effectively useless, since it still has to pass the sensor at the bottom to know where 0 is supposed to be. In the end, I might still re-buy this printer model (if Amazon ever issues me my refund now that I've returned it to them), since on paper it's still the best 3D printer for me, but this whole experience has been awful for me and meant that I'm not going to be able to make people ornaments in time for the holidays like I'd planned, so I wanted to go ahead and let people know that this stuff can and does happen and to be wary of it. [Update as of 12/12/23:] A few days after I wrote my original review, Elegoo customer service reached out to me (the first time a seller/manufacturer has ever done that in response to my review) to extend their apologies for my trouble, offer me a full refund, and ask me to give them another chance. I'd heard that Elegoo has the best customer service, and it seems I heard correctly. Their message gave me the confidence to order a new Mars 4 Ultra, and I'm glad I did, as the new printer works flawlessly. (I can still see a little UV light if I look at it at just the right angle during printing, but it's minor, and nothing is bent this time. I may eventually add a strip of thin, adhesive-backed foam between the chassis components to create a better light-blocking seal, but I doubt it's necessary.) It was a mistake to contact to Amazon's customer service before Elegoo's, as the latter has been wonderful to work with, even reaching out to make sure that I was happy with the replacement printer I ordered and reminding me that I can always contact them with any questions/issues. In light of my customer service experience, and the quality of the printer I got to replace the first one, I'm upgrading my review to five stars. I can now say that I wholeheartedly recommend this printer, even knowing that significant problems can occur, because I know that Elegoo has my back if and when those problems occur. Seriously, if something is wrong, contact them first. You'll be glad you did.

### ⭐⭐⭐⭐ UPDATED: This printer is impossible to level....
*by J***B on March 31, 2024*

UPDATE: IT's a quality control thing... Elegoo reached out to me and Amazon sent out a new Mars 4 Ultra. I was having the same issue with the new unit. I tested both build plates and could not get them to level without excessively pressing them into the LCD screen. I went back to the original base, used the new build plate and was finally able to get this thing to level. Just an FYI you must remove the resin tank, loosen all 4 screws, retur the unit to zero (with the card in place), press the build plate firmly against the card and tighten the screws, then adjust the z offset back down on the card by 0.1mm until the card no longer moves with minimal effort, then you can set your new zero. Once this was done and I used the proper exposure settings (FYI big shout out to Fauxhammer on youtube for giving me some pointers) I have been able to get 3-7 prints at a time without needing to re-level the build plate. I'd say this is a good resin printer, it is just a tricky hobby. So be ready to do a lot of your own research and trouble shooting!!! This is not a hobby for someone who does not like to tinker, you will be test printing calibrations way more than fun stuff in the beginning, but this should be true with any printer you buy. You will need to know your printer and the resin settings for all you favorites. Sorry I'm a little long winded on this... I have a lot of thoughts but if you made it this far I by no means discount this Elegoo Mars 4 Ultra. It does what it is intended to do and does so with decent quality for a printer under $300 and it is my opinion that you could not go wrong by purchasing either Mars 4 printer. Just know the hobby you are committing to. Oh and Elegoo, if you are reading this, thank you for your constant communication through this but please also do mind the QC process because you do have a good product. I received this printer on Friday and have had failed print after failed print. The print bed cannot be leveled... facing the front of the machine the left side will hold the paper but the right freely slips out. I have only been able to get on successful print by going to zero getting level best I can with the set screws tightened. Then move the bed down 1mm as many times as I can until the paper will not move anymore and backing off by .1mm at a time until I find it is set. My problem with this method is I'm very concerned it will damage the LCD and I can find any instructional videos that show anyone in their right mind utilizing this method. I have spent all weekend waiting for prints to fail, then draining and cleaning the printer, only to go through the whole process again. This last time I finally had some lubricated to apply to the release film which did not help the issue at all. I'm at a loss and I'm hoping that the Elegoo customer service will help with this issue as I really need this printer for work and school. Sorry for the rant but I hope this is helpful to others looking into this printer and I will update when I have more information.

### ⭐⭐⭐⭐⭐ Excellent customer support.
*by C***G on March 1, 2024*

Good build quality and testing the settings on exposure settings went well and was easy to set up. I had some quality issues with the build plate having some low areas. I sent an email to tech support and next day I had reply and some suggestions as to help diagnose the problem. I sent a picture of the issue and then a new replacement was sent out. I received the part 4 days later. New build plate is working as it should and looking forward to printing some miniatures and dice.

## Frequently Bought Together

- ELEGOO Mars 4 MSLA 3D Printer with 7" 9K Monochrome LCD, UV Resin Photocuring Printer, Multiple Print Modes, Printing Size of 6.04 x 3.06 x 6.89 inches
- ELEGOO Mercury Plus 2.0 Wash and Cure Station V2 for Mars Photon S Photon Mono LCD SLA DLP 3D Printer Models
- ELEGOO Water Washable 3D Printer Resin LCD UV-Curing Resin 405nm Standard Photopolymer Resin for Mars Saturn Jupiter MSLA DLP LCD 3D Printing 1000Gram Ceramic Grey

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-08-31*