How to Level Resin 3D Printers Easily – Anycubic, Elegoo & More


Leveling your resin printer is one of the most important things to do for getting successful prints. This is something I figured out early, so I decided to write an article on how to level different resin printers.

To level a resin 3D printer, you should clean the build plate and remove the resin vat. Loosen the screws on the build plate, place your A4 leveling paper on the screen then press “Home” to lower the build plate. Gently push down the build plate and tighten the build plate screws. Press Z=0 to set new home position.

This is a fairly simple process, but there is more information that you may find useful, so keep reading through this article to get tips on leveling your resin printer easily. There is also another leveling method, loved by many further in this article that you may want to try.

How to Level Your Resin Printer – Anycubic Photon, Elegoo Mars & More

Leveling your resin 3D printer is a fairly simple and easy process but very essential to the success of your models. One of the main reasons why resin 3D prints fail is because the build plate isn’t level.

Generally, there is a similar process for every resin 3D printer, but there are slight differences from one printer to another. I put together the process for the Anycubic Photon Mono X and the Elegoo Mars 2 Pro below.

How to Level the Anycubic Photon Mono X & Similar Resin Printers

The first step to leveling your Anycubic Photon Mono X or similar 3D printer is to prep the build plate.

How to Level Resin 3D Printers - First Picture Before Leveling - 3D Printerly

This is done by cleaning the bottom, sides and top of the build plate with a paper towel. You don’t want any resin dripping or getting on the screen. Make sure you wipe the bottom three or four times quite firmly since the resin can get between the scratches.

How to Level Resin 3D Printers - Wipe the Build Plate - 3D Printerly

Once you’ve cleaned the build plate, we can carefully remove the resin vat and place it somewhere clean, that isn’t dusty. The vat should have small feet to elevate it but we still want to put it on a fairly clean surface just in case.

I make sure to put the paper towels with uncured resin under a UV light so it is safe to dispose of.

How to Level Resin 3D Printers - Remove the Resin Vat - 3D Printerly

Now that we have cleaned the build plate and removed the resin vat, we want to loosen the four build screws (with a 4mm Allen Key) on the top side of the build plate (not the lower four screws). You just need it to be slightly loose, not screwed out very far.

How to Level Resin 3D Printers - Loosen Build Plate Screws - 3D Printerly

Get your A4 piece of paper, known as the leveling paper and place it on your screen. This provides a small gap to act as a similar thickness as the FEP film, as well as to stop the screen getting resin on it. Now we go into “Tools” and press the “Home” button to lower the build plate.

How to Level Resin 3D Printers - Put Leveling Paper on Screen - 3D Printerly

Once your build plate is lowered to the screen, we want to push the top of the build plate down so it’s even on the build plate and screw the top four screws tight.

You want to try and spread your fingers fairly wide (much wider than the picture if you can) to push down the build plate evenly on the screen. It’s a bigger 3D printer than most so you’ll have to try and push the middle and corners down while you tighten the four screws.

Make sure to tighten the screws quite firmly so it stays in place properly.

How to Level Resin 3D Printers - Push Build Plate Down & Tighten Screws - 3D Printerly

You then want to raise the build plate by 0.1mm until the paper can be wiggled around a little bit but isn’t too loose.

Once that’s set in place, we can press “Z=0” to set the current build plate position to be the home point.

How to Level Resin 3D Printers - Press Z=0 to Set New Home Position - 3D Printerly

You’ll get a prompt to set “Z=0” so press “Enter”.

How to Level Resin 3D Printers - Confirm New Home Position - 3D Printerly

This should now save the new home position. It will ask you to raise up the build platform by pressing “Enter” again.

How to Level Resin 3D Printers - Rise Up Build Platform After Setting Position - 3D Printerly

Your Anycubic Photon Mono X or similar 3D printer should now be level. Now you can remove the A4 paper, put the resin vat back in and get back to 3D printing some awesome models.

How to Level Resin 3D Printers - Mono X Build Plate Leveling Finished - 3D Printerly

You can check out the Anycubic Photon Mono X Manual for the leveling process on page 12 of the PDF.

How to Level the Elegoo Mars 2 Pro & Similar Resin Printers

The first step for leveling the Elegoo Mars 2 Pro or similar 3D printers is to make sure the rotary knob at the top is tightened, so it is secure to the machine.

How to Level Resin 3D Printers - Make Sure the Rotary Knob is Tight - 3D Printerly

We want to clean the build plate with a paper towel or something similar, so there isn’t any uncured resin that can spread around.

How to Level Resin 3D Printers - Clean Build Plate with Paper Towel - 3D Printerly

Remove the resin vat.

How to Level Resin 3D Printers - Remove Elegoo Resin Vat - 3D Printerly

Loosen the build plate screws with a 5mm Allen Key.

How to Level Resin 3D Printers - Loosen Two Build Plate Screws - 3D Printerly

The build plate should be able to move side to side and around due to the ball leveling design.

How to Level Resin 3D Printers - Build Plate Should Have Movement - 3D Printerly

Place your piece of A4 paper on top of the screen. It’s a good idea to make the paper smaller than it shows below. I did this in further down in the process.

How to Level Resin 3D Printers - Place Leveling Paper on Screen - 3D Printerly

Hit “Tools” on the control screen.

How to Level Resin 3D Printers - Go to Tools on Control Screen - 3D Printerly

Select “Manual” so we can move the build plate.

How to Level Resin 3D Printers - Go to Manual on Control Screen - 3D Printerly

Hit the “Home” button to lower the build plate to the screen with the A4 leveling paper.

How to Level Resin 3D Printers - Press Home on Control Screen - 3D Printerly

Here is how it looks after the build plate is homed. As you can see, I reduced the size of the paper so I could better angle the build plate with the machine so it’s even.

How to Level Resin 3D Printers - Adjust Build Plate to Be Even to Screen - 3D Printerly

After you get a good angle on the build plate and it’s even, tighten up the two leveling screws. Make sure to tighten the screws quite firmly so it stays in place properly.

w to Level Resin 3D Printers - Tighten Screws After Even to Screen - 3D Printerly

We want there to be a little bit of wiggle room for the A4 leveling paper to move around, so if you can’t move the paper at all, raise the build plate 0.1mm until you can.

How to Level Resin 3D Printers - Raise Build Plate by 0.1mm if Needed 1 - 3D Printerly

Here is me pulling out the leveling paper after moving the build plate up slightly.

How to Level Resin 3D Printers - Raise Build Plate by 0.1mm if Needed - 3D Printerly

Now we can hit “Back”

How to Level Resin 3D Printers - Press Back on Control Screen - 3D Printerly

You’ll see the “Set Z=0” option to set the home position for the build plate.

How to Level Resin 3D Printers - Set Z=0 on Elegoo Mars - 3D Printerly

Hit “Confirm” to lock this position in.

How to Level Resin 3D Printers - Confirm Z=0 on Elegoo Mars - 3D Printerly

Your build plate should now be leveled.

Does a Resin Printer Have to Be Level?

Resin printers perform better when they are level, though it’s still possible to get successful prints when the bed is not fully level. The first layers are the most important so when the bed isn’t level, it can reduce the adhesion of these initial layers, potentially leading to print failures due to suction pressure.

Your build plate should be properly leveled and parallel to the screen before starting a print. Your resin 3D printer will take you through the leveling process when you first unbox and set it up.

Many users have expressed how leveling their resin printers has helped in improving their print results. A user who expressed how they had been getting failed prints with more than half of their prints was advised to check if their build plate was well level.

They went to level their 3D printer and came back with good news on how they began to create successful prints since then.

When you’re experiencing some print failures, one of the first things you want to check is how well level your build plate is. If it is not well level, it is most probably the cause of the failed prints and you want to take effective steps to ensure that your prints are well level.

Another thing to look out for is whether your 3D printer is on a level surface because the resin can start to pool to one side and make it more difficult to get resin to make full contact with the build plate.

If you have the Anycubic Photon, you may want to try using the Anycubic Photon Easy Leveler, a Thingiverse file that makes leveling easier. You simply have to just Home Z, set Z=0, then secure the side screws.

How to Do the Flint Read Leveling Method for Resin Printers

To do the Flint Read leveling method:

  1. Make sure the build plate screws are loose, and the resin vat is empty but still placed inside the printer
  2. Press “Home” to lower the build plate until it reaches the vat
  3. Switch to 0.1mm steps and press the down key until you can’t twist the build plate easily.
  4. Tighten the leveling screw
  5. Raise up the build plate three times while on the “0.1mm” setting
  6. Press “Z=0” to set the home position
  7. Now move your build plate back up to get ready for printing

Some people recommend doing the Flint Read leveling method for leveling their resin 3D printers. There are mixed reviews but they are mostly positive. The main precaution is to not rotate the plate too hard as it can cause scratches in your FEP.

There are reports of people who say they do this method and have never had a leveling issue. Many people who tried the paper leveling method unsuccessfully then tried this method found it to be much better.

Here is the original video by Flint Read showing people the method.

How Often Should You Level a Resin 3D Printer Bed?

You should level your resin 3D printer when you start to experience print failures. Some people recommend leveling your resin printer after 5-10 prints but it’s not needed with a sturdy resin 3D printer. I’d recommend re-leveling your printer if you move it around a lot or put a lot of force on it to remove a model.

Another reason to level your resin 3D printer bed is if you are about to print a large model that may need the extra confirmation that the build plate is level. Sometimes your printer can compensate for bad leveling with smaller prints, but larger prints may not be so forgiving.

If you change your resin vat or are experiencing many failed prints, that’s a good sign to level your build plate again.

A few users mentioned that after getting a print failure where the models strongly stuck to the build plate, having to remove the cured resin meant they put a lot of force onto the build plate, potentially leading to making the build plate slightly uneven.

As long as you tighten the screws properly on your 3D printer, they shouldn’t come loose. In some cases, people have found the screws to be a little loose, so you would probably want to just tighten them and potentially re-level the build plate.

One rule of thumb you can follow on how often you should level your resin printer is that leveling should be done when:

  • You have just newly acquired your resin printer
  • You are beginning to experience constant failed prints
  • You need to change your resin vat

How to Fix Resin Printer Home Position Too Low – Anycubic Photon

To fix a resin printer home position that’s too low, you should make sure to loosen the build plate screws before you lower the build plate for leveling, gently push the build plate down on the leveling paper when it’s in the home position, then tighten the build plate screws.

A user who had just received their Anycubic Photon Mono X had their home position too low. Whenever they hit the home button, the build plate touched the screen but continued to go down. It results in a weird grinding, clicking noise that is pretty loud.

They ended up fixing this by ensuring to loosen up the four build plate screws at the top, then leveling the printer as usual.

When you press “Home” your build plate lowers until it hits the Z-limit switch, which indicates to the printer that it’s at the bottom, touching the screen.

You may be having an issue with the limit switch or light sensor at the back of the printer, just below the platform rail. You can try unscrewing this and carefully cleaning off marks of resin that is blocking the light.

Some people have addressed this issue by updating their firmware so you can try to download the latest firmware from your brand’s website and get that installed on your printer.

One user mentioned that he overtightened the main thumbscrew that holds the build plate at the top, making the build plate retract slightly. When he loosened it up a little, it ended up reducing the clearance to properly make contact with the screen, resolving this issue.

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