ELEGOO Mars 5 Series : Review

Elegoo recently announced its new ranges of resin printers, the Saturn 4 and Mars 5.

Today we are going to analyze the Elegoo Mars 5 that we have the normal model and the Ultra version full of very interesting new features and improvements.


Elegoo is a benchmark in 3D printing both FDM (filament) and SLA (resin), this Mars 5 Series significantly improves its sister Mars 4 by improving some aspects of these focused on simplicity of operation and intelligent functions.

As always before continuing with the article, remind you that you can join 3DWork on our Telegram channel full of 3D printing deranged, or on our social networks FacebookTwitterInstagramand YouTube.

We also recommend the Telegram channel of Elegoo Spain where normally together with other colleagues we help and share experiences with these printers.

Elegoo Mars 5 Series

The new Mars 5 series, as we will see soon with the Saturn 4, comes with two models as we anticipated, the normal version and the Ultra version, this being the one with the greatest number of novelties. Still a little in line with the versions we already saw in Mars 4.

Aesthetically on the outside both machines are very similar with the only difference being the color of the bell that protects the printing area, being dark for the Ultra model and green in the case of the normal version.

One of the attractions of this Mars 5 series, and common to both models, is the automation of verification processes to ensure a perfect operation of the machine, making us practically worry about putting resin, with the appropriate exposure times for it obtained through tests, and that’s it.

Elegoo Mars 5 Self-test features

Among these tests we can find a counter of uses/layers of the film which will notify us when it is time to replace it, every 60,000 layers, we also have checks at the start of the machine of the different components and sensors of the machine. Also interesting is the inclusion of a temperature protection system that will stop the machine safely if it exceeds 80ºC, in any case the machine has a powerful and efficient ventilation system to ensure optimal working temperatures.

Another of the main novelties introduced in this Mars 5 series, also common to both models, is its “automatic leveling” system and we indicate it in quotation marks because it can be something that leads to confusion as to how it really works

Elegoo Mars 5 Leveling & Smart Sensor

The Mars 5 has a mechanical intelligent sensor that will detect when the platform comes into contact with the base.
In this way we avoid the tedious and manual Z=0 adjustment system. In any case, the printing platform, which is level and adjusted from the factory, still has mechanical adjustment screws that we must continue to use in case of adhesion problems.

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As for other similarities between the two models, we have a very comfortable and robust printing platform clamping system.

Elegoo Mars 5 Build Plate System

Continuing with the platform, it has a base with a laser-engraved pattern to improve adherence as well as a new design of a more robust platform specially designed for the leveling system implemented in these machines.

Elegoo Mars 4 Features

With respect to the VAT or metal resin tank for greater durability, it has a new design of easily replaceable fixing screws and finallywe have two resin emptying areas to improve the emptying process.

Also as significant improvements we have adjustable legs, something very important in resin printers so that it is perfectly level, and we also have an opening in the housing for the use of the Mars Mate Air Purifier purifier.

Once we have reviewed the common features/functions we are going to review the differences, which are not few between both models.

Perhaps the biggest novelty in the Mars 5 Ultra model, which we also have in the Saturn 4 Ultra, is its new Tilt system. This mechanical system allows the screen/VAT assembly to be “balanced” and together with the movement of the Z axis to “peel off” the VAT model quickly and reducing tensions during the process. In the following animation the process will probably be clearer.

Mars5UltraTilt 1

This Tilt system will allow us maximum speeds of up to 150 mm/H with the use of an nFEP/PFA film, not needing the controversial and expensive ACF commonly used lately. The benefits of the system will be very fast prints, up to X2 compared to the Mars 4 Ultra, without compromising detail, definition, accuracy or reliability in our prints. Another benefit of this system is that the user forgets about a set of settings such as distances or speeds in the retracting/lifting movements, substantially simplifying the configuration.

Another of the most relevant is going to be found on its screen. While in the Mars 5 Ultra we have a 7″ monochrome screen with a high contrast 9K resolution (500:1), which gives us an XY resolution of 18μm (8520×4320), the normal Mars 5 mounts a 6.6″ screen also monochrome but 4K with an XY resolution of 35μm (4098×2560).

Elegoo Mars 5 Screen Resolutions
Elegoo Mars 5 Ultra – Elegoo Mars 5

Finally, other differentiating functions between both models to highlight… the electronics/software part.

We will start with the “AI” camera, it is fashionable now to put this tag to everything, which will give us some very interesting intelligent functions.

Elegoo Mars 5 AI Camera

This camera will allow us, theoretically, todetect errors in real time during our printing, such as that our part is not printed correctly because the camera and the analysis of the captures promises to detect errors.

Elegoo Mars 5 AI Camera Features

It also promises to detect adhesion problems of the prints by producing partial adhesion failures of our parts, although we anticipate that due to the position of the camera and taking into account the part and where the problem occurs it will be complicated.

In addition to these functions, the camera will allow us to monitor our print in real time and, on the other hand, to be able to make time-lapse videos of our prints. In both cases later we will make some clarifications about both functions that we believe are, today, important and to be taken into account.

Elegoo Mars 5 Time-lapse

Continuing with the electronics/software part in the Mars 5 Ultra we have a WiFi connection that will allow us to manage this model remotely through Chitubox Manager, be able to manage prints, control a printer farm and other functions that can be really useful for some users.

Another notable change is the management screen, which although in both cases seems similar, the interface and options vary significantly. In the Mars 5 Ultra we have a larger 5″ capacitive screen and we find a friendly and fast interface that will guide us easily through all the complete settings it incorporates.

We also have options to be able to perform multi-exposure tests quickly and easily, being able to do multiple tests at once saves us time and allows it to be a less cumbersome process. In any case, we will give you more details later.

Elegoo Mars 5 Exposure Test

Another function that may be interesting for some users is the power failure recovery option that we also have available on this Mars 5 Ultra.

We also have OTA firmware updates, we can apply them directly from the machine options, which are always appreciated to keep the machine up to date with updates in a simple and comfortable way.

To make it easier for you to compare the different versions of Mars 5 you have all the data of both in the following table, as well as those of its sister Mars 4 Ultra:

Mars 5 UltraMars 5Mars 4 Ultra
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Build Volume153.36 x 77.76 x 165 mm³143.43 x 89.6 x 150 mm³153.36 x 77.76 x 165 mm³
Printing SpeedMAX 150 mm/hMAX 70 mm/hMAX 150 mm/h
Layer Thickness0.01-0.2mm0.01-0.2mm0.01-0.2mm
XY Resolution18μm (8520×4320)35μm (4098×2560)18μm (8520×4320)
Z-Axis Accuracy0.02mm0.02mm0.02mm
Light SourceCOB Light Source (wavelength 405nm)COB Light Source (wavelength 405nm)COB light source + Fresnel collimating lens
LCD Screen Size7-inch 9K Mono LCD6.6-inch 4K Mono LCD7-inch 9K Mono LCD
LCD Screen Protector9H hardness tempered glassPET scratch-resistant film9H hardness tempered glass
Connection MethodUSB Interface & WiFiUSB InterfaceUSB Interface & WiFi
OS SystemEL3D-4.0EL3D-3.0.1EL3D-4.0
Slicers (at launch)ChituboxChitubox & Voxeldance TangoChitubox & Voxeldance Tango
Operating Screen4.0-inch Capacitive Touch Screen3.5-inch Resistive Touch Screen4.0-inch Capacitive Touch Screen
Air PurifierUSB connection unavailable, compatible with Mars Mate air purifierUSB connection unavailable, compatible with Mars Mate air purifierPlug-in
Other FunctionsTilt Release Technology, One-Click Automatic Leveling, Self-Check & Overheat Protection, AI Camera (Empty Build Plate Detection/Warp Detection/Real-Time Monitoring & Time-Lapse Recording), Smart Mechanical Sensor (Resin Shortage Alarm/Residue Detection Alarm/Leveling Failure Alarm), Power-Loss Resume PrintingOne-Click Automatic Leveling, Self-Check & Overheat Protection, Smart Mechanical Sensor (Resin Shortage Alarm/Residue Detection Alarm/Leveling Failure Alarm)N.A.
Dimensions260 x 268 x 451.5 mm³230 x 230 x 433.5 mm³227 x 227 x 443.5 mm³
Net Weight8.8kg6.6kg6.5kg
Gross Weight10.8kg8.6kg8.3kg

Elegoo Mars 5 Ultra Start-Up

Once you have finished reviewing all the features of this Mars 5 series, it is time to start it, a very simple process following the steps that we find in the physical manual on paper included in the kit that we also have in electronic format on the USB also included in the kit.


If you don’t know about resin printers, it is a technology that allows you to obtain incredible detail compared to other technologies such as filament extrusion.

On the other hand, remind you that the resins used by this type of printers are or can be potentially dangerous given their toxicity either in contact with the skin or eyes or the inhalation of the gases, so it is essential to take all the appropriate safety measures such as the use of masks for quality air filtration, gloves, goggles and work in well-ventilated rooms.

Finally, we would also like to remember that this type of technology requires post-processing of our parts, such as cleaning and curing them, and that we have to manage the waste generated by their use properly.

We are going to briefly explain the steps to follow to launch our Elegoo Mars 5 Ultra:

  • The first step will be the removal of the printer and its accessories, here we would like to make an aside… Elegoo has modified the packaging of these new printers (Mars 5 and Saturn 4 series) reducing in some parts the typical protection they used to come with, we highlight this because the appearance of the box looks less robust and “crushed” by transport.
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  • The kit includes everything you need for commissioning, maintenance and accessories.
    In this case as “extras” of this Mars 5 Ultra version we have the WiFi antenna, the AI camera and the protection tray to use when manipulating the machine that we will talk about later.
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  • Once the camera, the WiFi antenna is connected, the resin tank is screwed and the printing platform is in place, we are ready to connect the power and use our printer!
    Remember that both the tank and the screen have protective films with labels which must be removed!!
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  • When we turn on the machine we see how the process of verifying the machine is carried out where it is checked, for example… the applications of the tank film, the LCD, the Z and X (Tilt) motors, the status of the UV and fans, temperature and finally the mechanical sensor.
    The next steps will be to choose our language and, if we want and it is advisable, adjust the WiFi connection settings.
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If everything has gone well, we can start printing our first tests:

  • We will carefully fill the tank with resin, remember to use the accessory to protect from splashes/spills, it is important to use it also when removing our parts or in general when handling the printer… It costs nothing and can prevent accidents.
    Then we will use the included USB where we will find the typical Elegoo tower test to see that everything works correctly.

Leveling the surface where we place our printer!!

In the case of resin printers where we use a liquid component to obtain our parts, it is extremely important that our printer is placed on a perfectly level surface.


The Elegoo Mars 5 series has leveling legs that will allow us to facilitate this and we advise you that before filling the resin tank we check that we have everything well leveled.

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  • The next step we advise you is to carry out the exposure tests to adjust the times of our resin for our Elegoo Mars 5 Ultra.
    First we will install the slicer software included, currently, which is Chitubox Pro 1.5 Beta that supports this model… Soon we will have support in other laminating software… in addition, Elegoo includes a license for this version of three months.
    In this aspect, as we already told you, we have an option within the screen options that will allow us to perform a test with multiple exposures. Basically, from the laminating software, we will place our favorite test by dividing the platform into 4 sections and placing copies of our test piece in each section… we will leave the default options and generate the laminate that we will copy to the USB.image?url=https%3A%2F%2F3760761605 x Ya en la impresora iremos al menú Tools/Resin Calibration y ajustaremos los tiempos de exposición para cada cuadrante.
  • If everything has gone well, we will have our multi-exposure test and we will only have to decide what is the optimal time for our machine/resin and printing conditions, which we will adjust in our laminating software.
    In our case we usually use our own 3Dwork exposure test created based on the best tests, from our point of view, to adjust exposure times.
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The importance of exposure tests!!

Correctly calibrating exposure time is a critical factor in ensuring that our parts print smoothly and with the highest quality. There are mainly, there are other values that are a little more advanced that we do not advise you to modify initially, twovery important values to take into account:

– Exposure time of first layers. These first layers are critical since they will withstand the tension of our part and its supports when carrying out the printing process. In this aspect it is important to:
– Number of first layers, a low value or a very high one can be counterproductive. Having a small number of first coats can make them not support, in this aspect it is advisable to have a number between 4 and 8 base coats.
– Exposure of first layers, also like the previous one, can affect the adhesion of our piece and cause the printing to fail. A short exposure can affect adhesion while a high exposure, apart from causing similar failures, will reduce the life time of our screen. Normally, as always depending on the printing and resin conditions we use, this exposure time is usually between 25 and 40 seconds.
– Exposure time of normal layers, if the previous layers were critical for the adhesion of our piece to the printing plate, in this case they are important to provide consistency to the piece as it is created and to obtain a good definition of details in our figures.

After all this explanation it is important that we invest a little of our time to find the exposure time of normal layers. To do this, we can use different types of tests that you can find in our SLA calibration guide.

Initially we do not advise you to make further adjustments to your laminator profile, in the case of being an advanced user and knowing the resin printers moderately you can try to adjust the speeds. Basically, these print speed adjustments will result in a reduction in printing time, between 5 to 20% depending on the settings.

In case you want to make these advanced settings, always try to make small changes to your settings and verify that they do not affect anything. Normally with very fast speeds it can affect the resin flow and affect the level of detail of our parts.

Another factor we can play with is antialiasing to disguise that staggered effect between layers. Personally, and taking into account the resolution/accuracy of the Elegoo Mars 5 Ultra, use the minimum antialiasing value to keep the details as high as possible.

In any case, we advise you to review our SLA calibration guide for more detailed information on parameters, options and tricks with our printers.

Print quality

Once the first basic adjustments were finished, we started to print some projects for some colleagues and be able to see how this Elegoo Mars 5 Ultra behaves.

At the time of this review, the Elegoo Mars 5 Ultra was only supported by the Chitubox Pro 1.5 laminator in Beta, included in the USB. 
In our case we always prefer to use Lychee as a laminator, we find it more agile in its workflow and available tools since we have the PRO version.

In our tests we use Elegoo Standard resin in gray and beige supplied in our test kit, being minis we always like to mix in a proportion of 15-25% with a flexible resin or ABS usually from the Mario companion of Electrobits that you can find in their online store. They are resins formulated in Spain with great quality, low toxicity and a good price that is always appreciated.

The layer height used for the tests has been 0.05 and the default parameters of the laminator, Chitubox Pro 1.5 Beta in this case, we always try to simulate the scenario of a novice user when starting with this type of printers.

Therefore, the results obtained in our tests with a printer adjustment and calibration may be much higher than those presented below.

We have only been able to spend a few days with it, and we continue to carry out tests, but we are going to show you some examples of impressions obtained with this Elegoo Mars 5 Ultra.

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Given the characteristics of the Mars 5 Ultra, especially focused on medium/small parts due to its printing volume and exceptional definition, they provided us with several figures that fit perfectly with this machine.

To test the behavior of the machine we choose supported figures, something that we are not particularly a fan of since the supports are not always optimized for the machine we use, without making any modification or retouching.

And we have to say that the Mars 5 Ultra behaved exceptionally without a single glitch, as well as always trying to make the most of the print volume.

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But perhaps the most amazing thing about the whole process was seeing how the tilt system works!! and it worked great… reducing tensions during movements and significantly speeding up printing times… In a little more or less 2h we had prints similar to others that in other recent machines were double or more time… and all this with exceptional quality.

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Below you can see some examples of prints obtained with the Elegoo Mars 5 Ultra, sometimes it is difficult to see the detail of the figures but we have to tell you that without making fine adjustments more than a quick exposure test and using a standard resin the details obtained were sensational.

In some photos we can see the layers somewhat, as we have commented we did not make any extra adjustments on the profile such as antialiasing and the figures were pre-supported sometimes in positions that could be improved from our point of view.

In addition, as we have mentioned, the tests were carried out at layer height 0.05, which for the XY resolution of this Mars Ultra may use 0.025 we will obtain a better definition with specific resins, since due to the incredible speed of this machine, time will not be a problem.

Elegoo Mars 5 Ultra review and experience

Except for the DLP and Max version, we had the opportunity to use the Mars 4 and Mars 4 Ultra, very good machines, so we were able to compare both first-hand.

From our point of view in terms of construction we have a machine with significantly better finishes, in terms of aesthetics it is already to the taste of each one… But we love the new redesign despite being a little larger in size and weight.

Elegoo Mars 5 Ultra Parts
Elegoo Mars 5 Ultra Parts

Although in the optical system we are hardly going to see significant differences, it is in the Ultra versions where we will see very interesting new features, in addition to the new intelligent mechanical sensors and its new printing platform, which in our view is significantly better than the old ones.

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Speaking of the printing platform and the automatic leveling system, we do not really have an automatic leveling system as such but a system that sets the homing or Z=0 automatically.

To do this, the printing platform has to be mechanically level, although it comes from the factory, since we have 4 adjustment screws mounted the entire platform on spring-loaded pillars to allow certain leveling deviations without affecting our prints excessively during the first layers.

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Although we often do not show it, we like to carry out UV power tests on the machines to verify the quality of UV dispersion through the screen. As you can see in the screenshot above, we found differences in the readings obtained in the center vs. the sides, although in practice we did not see that it affected the final quality.

One aspect that some may miss is that the connections for the installation of a “USB” air purifier are no longer available (we put it in quotation marks because despite having a USB connector, the power it provides is not that of a normal USB, which can damage unprepared devices or the printer itself). In its place we have an opening for the installation ofthe Mars Mate Air Purification System… this being a suitable solution if we work with resin printers in work/passage areas and fair ventilation.

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We have fallen in love with the new Tilt system in both this Mars 5 Ultra and the Saturn 4 Ultra that we are just testing. A novel system that delivers what it promises… Fast, reliable and quality prints. The system looks very robust with a large and powerful motor along with its mechanical balancing system of the resin screen/tank assembly also very robust.

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As a counterpart to this system we have extra components and mechanisms that may be a point of failure in the future but at least initially with respect to construction and components of the system it seems that Elegoo has done a great job.

Another aspect that usually worries people are the dreaded resin leaks, more so with this Tilt system that so that it can do its job leaves an opening that allows the rocking movement being able to spill resin out there

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To prevent this we have an accessory as a tray that we have found very useful and comfortable, and we are talking not only for these printers with Tilt but for any printer since it can help us save unwanted parts of the printer from staining. We have to say that if we go with a minimum care it is difficult for debris to fall, in any case if we fall we can remove the front of the Mars 5 with a few screws from the top and bottom of it to have access to the interior and clean it… in any case, Elegoo has already designed the system so that if some resin falls, such as a few drops, it is difficult for it to affect any critical component.

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Related to resin, we always like to suggest using supports to drain the resin from the platform once we finish our prints. In this case we saw that with the accessory we could place the platform in a position that allows it to drain, although with the printer open. To avoid this we got down to work and designed a support to be able to do it in the traditional way that you can find here in case it is of help to you… by the way, Elegoo would be great if this type of accessories were included in all printers!!

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An issue that we did not like with reference to the Tilt is that when the machine is turned off, the engine runs out of power and causes the system to drop abruptly that could cause a scare. Perhaps leaving the Tilt system at the end of printing in the angled resting position could prevent that sudden movement or some mechanical anchoring system that fixes the system in the normal position when the printer is not in use.

Among the smart functions we have one that we have found, especially in line with the above with the leaks in the case of the Tilt system, extremely useful… resin detection. In one of our tests we passed the resin level of the maximum being a potential risk for the Tilt swing movements during printing the resin overflows, when starting the printing the system detected that extra level and stopped the printing to avoid a probable accidentWe also tried to leave a rest of support in the tank and the system warned us that we could have debris in it, saving us a more than likely serious accident.

We will move on to another function in which at the marketing level a lot of emphasis is placed, its AI camera.

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We will start by saying that having a camera in this type of printer can be very useful to monitor the status of the print or make time-lapses of these. In this aspect we were first to see that the system is managed through Chitubox Manager only which, among other things, does not have an application for mobile devices or is incompatible, as in our case, with our version of the operating system of our computer.

After this initial downturn, we analyzed the results of the time-lapses generated and, well… although they are results, the quality of them will depend on the external lighting we have in the area where we have placed the printer… although we are tempted to place internal LED lighting in the FAQ of Elegoo itself, they advise against it completely as it can affect the printing. In this case a half-hearted downturn.

The next point was to check the print failure detection wizards, nothing sticks to the platform, or the partial adhesion failure. In the first case, due to the position of the camera and taking into account the resin, this detection will not “see” anything until well into the print… In any case, it saves us some printing time and wear and tear on the machine. Although here the intelligent mechanical sensor also seems to act as a support/aid and gives a better result. In the second case, well, more of the same, it has not always detected problems for us… which by the way we simulated manually because our prints did not fail us once… either because of how difficult it is to detect it or on other occasions and againbecause of the placement of the camera it is physically impossible for you to see the opposite angle of printing if there are objects in between.

Taking into account that, in the case of the Mars 5 Ultra, we have a machine that we can connect to our network/Internet, we have a very useful OTA firmware update function so that we always have our printer updated with the latest improvements and corrections.

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Elegoo finally implemented a way to be able to perform multiple exposure tests in a simple way, which we already showed you in previous sections, something that will undoubtedly make it easier for people to carry out this important process… a 10 for Elegoo!!

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Final Review of the Elegoo Mars 5 Ultra

Elegoo with the Mars 5 Ultra has a solid machine in quality, speed and perfect for both advanced and novice users thanks to its calibration/monitoring options and assistants.

In addition to all of the above, it comes with a sensational price considering the features and quality offered by the Mars 5 series.

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On the improvement side, we would like to see compatibility with all the main rolling mills launched from day one, and we believe that Elegoo has to work more on its remote management ecosystem to be more accessible, since the machine has the functionalities to be able to offer them.

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The Tilt system has worked in a sensational way but as always time will tell if it leads to problems or extra failures.

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The inclusion in this Mars 5 Ultra of the accessory to prevent the resin from falling into sensitive areas, due to the Tilt mechanism, is great… But it would be nice if brands started to include this and other basic accessories such as the support of the printing platform to drain the remains of resin at the end of printing… would provide great added value.

Where can I buy the ELEGOO Mars 5?

Today if you want to get the ELEGOO Mars 5 or Mars 5 Ultra, you will only be able to do so with pre-booking through their website and take advantage of it because they have an interesting discount for those who opt for pre-booking!!

3D enthusiasts