3D printer test shapes

Top Ten Prints to Calibrate your 3D Printer

Get the most out of your 3D printer with these calibration tests which are designed to reveal small adjustments you can make to get your 3D prints to really shine.


September 30, 2022

With this set of 3D models, you can fine-tune your 3D printer to optimize your it's capabilities and get the best 3D printed parts possible. Let's dive in! 

Jump To: 

  • Vertical Surface Test
  • Horizontal Finish Test
  • Dimensional Accuracy Test
  • Overhang Test
  • Bridging Test
  • Negative Space Test
  • Retraction Performance Test
  • Support Material Test
  • Full Bed Dimensional Accuracy Test
  • Z Wobble Test
  • Squareness Test
  • Download Calibration Models

Vertical Surface Test

This test is designed to look for "ghosting" or “ringing,” where features echo and ring out along vertical surfaces.

As the print head makes a quick movement, it can oscillate, which creates a ring effect. The oscillations diminish on longer lines and the vertical surfaces clear up until a sharp turn is made again. Ghosting can come from a lack of rigidity like a loosely mounted hotend or a wobbly frame, springy belts, printing at high speeds with a heavy direct-drive print head, a bed that isn't rigidly mounted, or firmware settings for acceleration or jerk that are too high for what the printer can achieve.

Some printers can handle high jerk and acceleration, where others will falter and show significant error because of it.

Vertical Surface Test

Horizontal Finish Test 

With three different sections - flat, slope, and domed - you are able to see any sort of artifact or ridges from where the perimeters start and end. The more noticeable these points, the lower the score.

Cleaning this up depends on slice settings about perimeters, like start and end overlap, overlap percentage, and where the seam (start/end point of each outer perimeter) is located.

Horizontal Surface Test

Dimensional Accuracy Test

When you're printing coasters and keychains, it doesn't really matter if a part is 0. 2mm too wide, but for multi-part prints that need to fit together, the accuracy of each part is very important to keep things fitting properly. Slots for connector pieces can be just fine off of Printer A but too tight to use from Printer B, or holes for nuts and bolts are supposed to allow for easy installation, but require unnecessary force to assemble.

The second level of this pyramid is supposed to be 20mm wide and deep, and loses points based on the average deviation from 20mm; if the average deviation is between 0 and 0.1mm, a full 5 points is earned. If the deviation is between 0.1mm and 0.2mm, 4 points are earned, and so on.

If you get a bad score, you should run through a calibration sequence for your extruder, making sure that your e-steps are accurate. You can find a helpful guide on how to do that here.

Dimensional Accuracy Test

Overhang Test

This test is designed to see how well the printer can cool down the hot plastic as it is extruded; the better the cooling, the cleaner the bottom surface is. Printing speed does affect cooling, so the lower the print speed, the more time for freshly laid down filament to cool before the next layer is ready. 

A small print with high print speeds is going to need much more cooling than a large print at slow speeds since material will have only a very brief amount of time to cool enough to solidify. 

It is important to consider that the type of fan used for layer cooling (axial vs radial) and the direction your fan outlet is facing will impact how well an overhang is printed, so it would be wise to print this test rotated every 90 degrees to see if some faces fair better than others. You might even consider a new ducting for the cooling fan to try and direct the airflow toward the part.

Drooping, curling, and hanging filament all lower the score, especially when the lower angles have difficulty.

Overhang Test

Bridging Test

Most slicers have the ability to detect bridging, which is where filament needs to cross an unsupported span. Usually the slicer will turn up the layer cooling fan, slow down the print speed, and change how the this section is printed so the span is efficiently crossed with long strands rather than small zigzags.

This bridging test piece tests a bridging condition, but most models won’t have bridges this obvious or long. You can expect to see some minor bridging over holes in the side of a model, over grooves, or over slots for inset nuts.

You get 1 point for each  clean bridge. 

Bridging Test

Negative Space Test

Much like the dimensional accuracy test, it's important that negative space is accurately replicated. When you're trying to insert screws cleanly without drilling it out or threading the plastic, it's important to know how much extra space you need to model into your part to accommodate. In general, when I need to insert an M3 bolt, I'll model a 3.2mm hole to make sure it slides in easily.

In general, if you precisely calibrate the steps/mm for the extruder, start and end overlap, and seam alignment, you can push out all 5 pins without much force. If there's difficulty removing any of the pins, there’s still something that needs to be calibrated out to achieve tighter tolerances. One point is earned for every pin that can be pushed out.

Negative Space Test

Retraction Performance Test

This test is hard to quantify the difference between a 4 and a 5, but the main thing this is looking for is retraction optimization. This is one of the toughest slice settings to calibrate due to just how many factors affect retraction, like the number of retraction settings, and even things like layer cooling, print speed, extruder style, or even your extruder's ability to extrude and retract without chewing the filament.

Retraction Test

Support Material Test

Whether you're using a dedicated support material like PVA or HIPS or you're using a single extruder printer and using the same material as your support material, it's important to have your support settings calibrated. Same material supports are printed with what's called an "air gap" where the print head rises above the print to create a slight gap between the roof of the support and the bottom of the printed part, giving the filament extra time to cool and droop onto the supports, preventing them from permanently adhering to each other. That air gap is something that needs to be optimized; too small and the supports adhere to the finished print, too large and the bottom surface will be really stringy and droopy until it can recover.

Dedicated support materials produce a bottom surface finish almost as clean as the top surface, because they are printed without an air gap since they can be dissolved away. The test model has separate sections for intricate supporting and a flat bottom surface, because an air gap optimized for one may not be enough for the other.

Support Test

Full Bed Dimensional Accuracy Test

While the dimensional accuracy test checks the accuracy of a fairly small part, this test checks accuracy across the entire bed. A small error in the dimensional accuracy test will compound into a larger discrepancy across the bed, which is 10 times longer than the first test. The smallest difference in expected vs actual measurement just means that any multi-part prints are going to skew depending on the orientation the part was printed in.

Full Bed Dimensional Accuracy Test

Z Wobble Test

Unlike every other test, which uses a scale to grade the proficiency of the 3D printer, this test is simply a pass or fail. The tower has a wide brim to make sure it is well adhered to the bed, and to ensure that any sort of issue in the walls of the tower comes from the printer's structure, and not because it tipped off of the bed. If there is any wobble, it should be cyclical and repeat with a period identical to the pitch of the lead screw attached to the Z axis. If the lead screw had an 8mm pitch, then you should see the pattern repeat every 8mm.

A key thing to watch out for is to make sure that your Z axis is properly constrained and not over constrained. Properly constrained means you have smooth rods, linear rails, or extrusions with V-slot wheels making sure that the Z axis only moves on Z and doesn't shift around. Rods, rails, and wheels should be tensioned or secured so that they don't wiggle or move when the Z axis is raising or lowering. Over-constrained is something like installing bearings at the top of the leadscrews in a support bracket. This is actually counter intuitive, because no lead screw is perfectly straight and adding that bearing causes a deflection in the lead screw. There should in general only be two part interacting with the lead screw: a coupler that attaches it to a motor (or be part of the motor) and a lead screw nut, anything else is overconstraining it and can hurt print quality more than help.

Z Wobble Test

Squareness Test

This test was developed to make sure that the printer's X and Y axis are assembled square with each other; this test will determine if the printhead moves on X, does it move a marginal amount on Y as well, or vice versa. Using an angle gauge, you will measure each of the five squares and determine how far off each corner is from 90 degrees. The further off from 90, the lower the printer's score.

Squareness Test

These are the top ten . ..really 11 prints because there's just no way to cut out any one of these, they all serve a very specific purpose that without them you're missing some element of troubleshooting and calibrating your 3d printer to perform at its absolute best. And these are the tests that we run to make sure that the printers that we work with are running at their best as well, so I hope that with these calibration prints you’re better equipped to help calibrate your own 3D printer and getting it to perform at the best that it absolutely can. 

All of these calibration prints, collected by Make, can be found in one place on Thingiverse here:


Happy calibrating!

20 Best & Most Popular 3D Printing Calibration Tests – 3D Printerly

When I first started 3D printing, I didn’t know much about calibration tests so I just went straight into 3D printing objects. After some experience in the field, I learned how important 3D printing calibration tests are.

The best 3D printing calibration tests include the 3DBenchy, XYZ Calibration Cube, Smart Compact Temperature Calibration, and the MINI All In One Test for configuring your 3D printer efficiently. 

Keep reading through this article to learn what the most popular 3D printing calibration tests are, so you can improve your model quality and success rate.

The 3DBenchy is probably the most 3D printed object and most popular calibration test of all time, giving users a “torture test” that can be used to see how well a 3D printer can perform.

The goal is to 3D print a 3DBenchy that can successfully handle overhangs, bridging, inclines, small details, and dimensional accuracy. You can find the specific measurements of what your Benchy should measure up to on the 3DBenchy Measure page.

TeachingTech made a great video that goes over how to troubleshoot your 3DBenchy if it isn’t coming out perfect.

There is even a 3DBenchy Facebook Group where you can ask for advice and get some feedback about your Benchy.

One interesting tip that one user discovered is that you can check for under or over extrusion by sticking the chimney of one Benchy into the box of another Benchy.

The 3DBenchy was created by CreativeTools.

The XYZ Calibration Cube is a popular calibration test that helps you tune your 3D printer so it becomes more accurate and precise for making high-quality 3D prints. 

The calibration cube has three axes: X, Y, and Z and the idea is that they should all measure 20mm when you print the cube. This can determine whether your 3D printer is creating dimensionally accurate objects or not.

If you happen to measure 19.50, 20.00, 20.50mm for the X, Y, and Z axes respectfully, then you can adjust your e-steps for the individual axis to get it closer to the 20mm measurement

The following video is a great tutorial on printing the XYZ Calibration Cube and how you should configure your 3D printer accordingly.

One user has pointed out that you should measure the cube at its top layers to get more accurate readings. This is because some inconsistencies can be caused by an uneven bed, so do make sure that your bed is properly leveled, and that you measure the cube at its top, just to be sure.

The XYZ Calibration Cube was created by iDig3Dprinting.

Cali Cat is the perfect alternative to regular calibration cubes and is a simple test that determines if your printer can handle advanced prints.

The Cali Cat model is equipped with the linear dimensioning tests of a calibration cube, making sure that you nail down the basics before moving on to complex prints.

Besides that, it has many complicated features as well, such as a 45° overhang, surface irregularities in the face, and bridging. If you see imperfections in your Cali Cat print and don’t observe high-quality features, then you have to configure your 3D printer.

The following is a great explanation of what the Cali Cat is and what role it plays.

Cali Cat or Calibration Cat takes about 30 minutes to print, so it is a quick and easy way of calibrating your 3D printer to get great quality parts reliably.

It can also serve as a cute desktop decoration for you, as many people have said. It’s definitely more fun to print than regular cubes or the 3DBenchy.

The Cali Cat was created by Dezign.

4. ctrlV – Test Your Printer v3

The ctrlV Printer Test V3 is an advanced calibration test that challenges the capabilities of your printer, to see just how well it can really perform.

It has several tests in one such as:

  • Z-Height Check
  • Warp Check
  • Spike
  • Hole in wall
  • Raft Test
  • Overhang tests (50° – 70°)
  • Extrusion width tests (0.48mm & 0.4mm)

To get the best results with the V3 calibration test, you want to configure your slicer’s settings and retraction settings as well as level your bed properly. You’ll get better results with time using trial and error consistently.

One user pointed out that having the print bed heated to 40-60°, depending on your filament, can help get the model to stick properly and print successfully.

The v3 model takes somewhere around two hours to print, so it’s definitely one of the best calibration tests out there if you want to tune your 3D printer relatively quickly, compared to other models that take considerably longer.

The ctrlV Printer Test V3 was created by ctrlV.

The Smart Compact Temperature Calibration Tower is an effective test for determining the best temperature for your 3D printer filament. The “Smart” edition of the Temp Tower adds more features that you can use to configure your printer. 

A temperature tower consists of many units, and each unit is printed at a different temperature, usually with increments of 5°C to find out the temperature that works best for your specific filament.

To print a temperature tower successfully, you have to implement a script in your slicer so the temperature changes automatically with each block of the tower.

Doing that can get confusing for beginners, so I highly recommend watching the following video that takes you through the process of how you should print the Smart Compact Calibration Tower.

Many people have said that the Smart Compact Temperature Calibration Tower has worked wonders and they were perfectly able to calibrate their printer, especially by using the video above.

The Smart Compact Temperature Calibration Tower was created by gaaZolee.


The Ender 3 Calibration Files are pre-sliced G-code files for the Creality Ender 3 or any other Marlin-based 3D printer to help you find the ideal slicer settings.

This isn’t a calibration test specifically, although it does include a speed test for calibrating your printing speed. However, the pre-sliced G-code files included in this download can be really helpful for configuring your 3D printer.

The sliced files consist of the following:

  • Retraction Test With and Without Automatic Bed Leveling
  • Heat Tower With and Without Automatic Bed Leveling
  • Speed Test With and Without Automatic Bed Leveling
  • Fully Configured Ender 3 Simplify3D Profile

The following video by the creator of the Ender 3 Calibration Files is a good visual guide on how to tune your slicer settings.

The Ender 3 Calibration Files have been created by TeachingTech.

The Part Fitting Calibration test is for tuning your 3D printer’s extruder to make parts more size-accurate. 

The goal is to print the S-Plugs of this test in such a way that they fit together perfectly. There’s also another model called Thin Wall Test under the “Thing Files” section for calibrating your Wall Thickness.

One interesting piece of information is that if you’re using Simplify3D, you can enable the “Allow single extrusion walls” setting under the “Thin Wall Behavior” section of the Advanced settings to print the Thin Wall model with the best results.

People who have successfully calibrated their extruder using this test say that objects like bearings, gears, nuts, and bolts now fit better and work as intended.

The Part Fitting Calibration was created by MEh5d.

The Retraction Test is a popular calibration model to check how well your 3D printer’s retraction settings are tuned. 

The aim is to print the model and see if there is any stringing in the four pyramids. People say that this is a great calibration model for fixing stringing in your prints before moving on to more advanced objects.

The creator has left working settings for Slic3r software in the model description, such as:

  • Retraction Length: 3.4mm
  • Retraction Speed: 15mm/s
  • Retraction After Layer Change: Enabled
  • Wipe on Retraction: Enabled
  • Layer Height: 0.2mm
  • Print Speed: 20mm/s
  • Travel Speed: 250mm/s

One user says that decreasing the temperature by 5°C has helped reduce stringing, since the filament doesn’t get as softened and retains it’s shape better. It’s advised to implement trial and error with your slicer’s settings until you find that sweet spot and make high-quality prints.

The Retraction Test was created by deltapenguin.

The Essential Calibration Set is a combination of multiple calibration prints that determine how well your 3D printer is configured as a whole.

This calibration test consists of the following models:

  • .5mm Thin Wall
  • 20mm Box
  • 20mm Hollow Box
  • 50mm Tower
  • Perimeter Width/T Tester
  • Precision Block
  • Overhang Test
  • Oozebane Test
  • Bridge Test

The creator has left instructions for printing each calibration print that’s part of this set in the description. It’s worth following these to fully calibrate your 3D printer.

The Essential Calibration Test was created by coasterman.

The Ender 3 Level Test is a calibration method that uses a G-code command to help you level the print bed evenly and prints five 20mm discs for tuning your adhesion.

This calibration test works by instructing your 3D printer’s nozzle to move towards each corner of the print bed with a slight pause in-between. Doing so allows you to manually tighten or loosen the leveling knobs and level your 3D printer.

The G-code will instruct the nozzle to stop at each corner twice, so you can comfortably level the print bed of your Ender 3. After that’s done, a total of five 20mm discs will be printed for you to check adhesion: four in each corner, and one in the center.

Do bear in mind that this test is compatible with 3D printers that have a 220 x 220mm build volume. However, the model has been updated to include the G-code file for the Ender 3 V2 as well, which has a 235 x 235mm build volume.

The Ender 3 Level Test was created by elmerohueso.

The MINI All In One 3D Printer Test aims to target several parameters of a 3D print all at once to check how capable your 3D printer really is. It used to be a larger version but he updated it to be smaller and quicker to print.

This calibration model consists of a variety of different tests, such as:

  • Overhang Test
  • Bridging Test
  • Support Test
  • Diameter Test
  • Scale Test
  • Hole Test

The MINI edition of this object is 35% smaller than the original All In One 3D Printer Test. People have been really able to dial in the settings of their 3D printer after printing this model.

The results of this 3D printed test would allow you to check which areas of your 3D printer need work, so you can troubleshoot the shortcomings accordingly.

The following video is a nice illustration of how this calibration test is printed.

People advise printing this model with 100% infill and with no supports for the best results. There’s also a version of this model without the text under the “Thing Files” section that can also be tried out.

The creator made a guide to try and assist users who are experiencing any issues with the test. It goes through fixing over extrusion, PID auto-tuning, temperature settings, belt tension, and bed PID.

The Mini All In One was created by majda107.

The Lattice Cube Torture Test is the ultimate calibration model that tunes your 3D printer’s retraction, overhangs, temperature, and cooling. 

This test is based on Maker’s Muse’s lattice cubes, but this one is more of a modification for your printer’s calibration.

You’ll find several different types of lattice cubes under the “Thing Files” section, each with its own features that are worth getting into.

For instance, the Super Lattice Cube STL is a complicated model that comprises two lattice cubes rotated together thereby making it even harder for your printer to get everything right.

The creator says that it’s best to keep your Layer Height to 0.2mm for the best results when printing the lattice cube.

The following video by Maker’s Muse is a great introduction to the lattice cube torture test so do give it a watch to find out more.

The Lattice Cube Torture Test was created by Lazerlord.

The Ultimate Extruder Calibration Test tunes your 3D printer’s ability to print bridges and gap distances by calibrating the temperature and travel speed. 

Using this model, you will be able to see how far your bridges can reach without noticeable imperfections. If you find the bridges start sagging, it means that you need to lower the temperature.

In addition, there are large gaps within the model which is great for testing reversal or travel speed settings. It’s also recommended to set extra shells to 0 and use as little infill as possible to save time and print the model quicker.

People who have tried the Ultimate Extruder Calibration Test say that this is a very useful calibration print that has helped people get optimal temperature settings and make perfect bridges.

One user who printed the model said that reducing the gap fill speed in PrusaSlicer specifically leads to better stability during printing.

You can also customize this model using your own variables. For this purpose, the creator has left instructions in the page’s description that you can easily follow.

The Ultimate Extruder Calibration Test was created by Starno.

The Customizable 3D Tolerance Test tunes your printer’s accuracy and determines how much clearance is best for your 3D printer.

Tolerance in 3D printing is how accurate your 3D printed model matches the dimensions of the designed model. We want to minimize the amount of deviation as much as possible for the best results.

This is something that’s necessary to calibrate when you want to make parts that must fit together.

This model consists of 7 cylinders, each having its own specific tolerance. After printing the model, you will carefully examine which cylinders are stuck tight and which ones are loose.

The ones that are loose can be easily taken out with a screwdriver. In this way, you can determine the best tolerance value for your 3D printer.

The following video by Maker’s Muse nicely explains what tolerance is and how you can test it for your 3D printer.

One user advises to print the model with 0% infill or else the whole model may get fused together. You can also use rafts with this print for better adhesion and to prevent warping.

The Customizable 3D Tolerance Test was created by zapta.

The Ultrafast and Economical Stringing Test is a quick and easy fix for stringing in your 3D prints that requires no extra post-processing steps. 

This model gives you the advantage of stopping the print as soon as you observe stringing in the two pyramids that are printed. You can then tweak your retraction or temperature settings, and print another one of these models to continue the calibration.

If the issue still persists, I highly recommend checking out another one of my articles that discusses 5 Ways to Fix Stringing and Oozing in Your 3D Prints.

People who have tried calibrating their 3D printer with this model have shown a lot of appreciation for the creator. This model takes somewhere around 4 minutes to print and uses very little filament.

It saves you both time and money, and makes it possible to get rid of stringing in your parts, which is when the nozzle pushes out excess filament and leaves small strings of material on your print.

You can also watch the following video to get a visual idea of how to identify stringing and why retraction settings influence this imperfection among other factors.

It’s worth noting that keeping your filament dry is half the work for getting successful 3D prints. I’ve put together an ultimate guide on How to Dry Filament Like a Pro so do check that out for an in-depth tutorial.

The Ultrafast and Economical Stringing Test was created by s3sebastian.

The Bed Center Calibration Test recenters your print bed and helps you change the bed center that your 3D printer recognizes, to the actual center of the bed.

Printing this model will allow you to clearly see whether your print bed is perfectly centered or not, and this is something that’s necessary to make parts without being offset from the center.

The cross feature in the model should be exactly in the middle of your print bed and the distance from the outer squares to the edge of the heated bed should be equal.

If you find your bed away from the center, you will need to measure the offset in the X and Y direction and change the bed center value in your firmware to calibrate the print bed.

The following video on bed centering goes in-depth in this process, so you should definitely check it out.

The Bed Center Calibration Test was created by 0scar.

The Lithophane Calibration Test model is a simple test for that helps you determine the best print settings for 3D printed Lithophanes. It has a set of wall thickness values that increase by 0.4mm, with the first 0.5mm value being the exception.

Here are the recommended settings that the creator has left for the model:

  • Walls Count 10 (or 4.0mm) – or higher
  • No Infill
  • 0.1mm Layer Height
  • Use a Brim
  • Print Speed 40mm or less.

This model has a 40x40mm and 80x80mm version, with three types for each size:

  • STD which includes a combination of raised and recessed numbers
  • RAISED which only contains raised numbers
  • BLANK which has no numbers

The creator recommends that using either the RAISED or BLANK model for printing the Lithophane Calibration Test is better for achieving the desired results, so do implement trial and error to calibrate your 3D printer.

The Lithopane Calibration Test was created by stikako.

The LEGO Calibration Cube is similar to a regular calibration cube for testing print tolerances, surface quality, and slicer profiles, but these can be stacked upon each other, making for a more visually pleasing and useful calibration cube.

This model serves the same function as the XYZ Calibration Cube, but can be seen as an upgrade since it can even be used as a cool display or toys.

Ideally, you should be having a 20mm measurement on all three axes of the cube, which you measure with a set of Digital Calipers.

If not, you can calibrate your e-steps for each axis separately to fine-tune your 3D printer and get back to making high-quality prints.

People love the idea of the LEGO Calibration Cube because it not only allows them to configure their printer but also beautifies their desktop as the cubes are stackable.

The Lego Calibration Cube was created by EnginEli.

The Flow Rate Calibration Method is an effective test that helps you calibrate the flow rate using trial and error, so your 3D printer extrudes the correct amount of filament. 

This calibration test is a quick and easy way of tuning your flow rate, which is essential for getting high-quality prints. However, make sure that your e-steps are calibrated before you test your flow rate.

That said, here’s how you easily calibrate your flow rate with this model.

Step 1. Download the Flow Rate Calibration STL file that matches your nozzle diameter.

Step 2. Print the model with your Flow Rate set to 100%.

Step 3. Measure the width of each wall of the printed model.

Step 4. Take the average of your measurement using the (A/B)*F formula. The resulting value will be your new Flow Rate.

  • A = expected measurement of the model
  • B = actual measurement of the model
  • F = new flow rate value

Step 5.  Print the model again with the calibrated Flow Rate value and measure the model afterward. If the actual measurement is equal to the expected one, you’ve successfully calibrated your Flow Rate.

If not, calculate the Flow Rate again with the measured value and repeat the process until the two measurements match each other.

The following video is for those who prefer a visual tutorial.

The Flow Rate Calibration Method was created by petrzmax.

The Surface Finish Calibration Test determines how well your 3D printer prints the surfaces of your models. It’s perfect if you are having problems with 3D printing uneven or curved surfaces, so you can calibrate your printer correctly beforehand before starting the main model.

This model is a quick and easy way to print multiple surfaces and check them each. Doing so makes it simpler to tweak your slicer’s settings and calibrate your 3D printer.

You can check out the recommended settings in the page’s description for each resolution of the model.

The creator also mentions that if you live in a humid area, decreasing the nozzle temperature by 5-10°C can help you get better results.

The Surface Finish Calibration Test was created by whpthomas.

8 test print models

3D printer test models are required for:

  • When you bought a new printer and need to test it on your favorite media
  • When you have purchased new media and need to check the print specifications
  • When you have been using a material for a long time, but do not know its tensile strengths

We will talk about the 8 models most used for testing in 3D printing.
1 3D Benchy

3D Benchy is one of the most popular 3D printer test models. The boat figurine perfectly demonstrates the capabilities of FDM printers in any price category. This model will help you determine exactly what settings you need to set to get the perfect 3D print.
Printing 3D Benchy - will allow you to see how the printer copes with the "rendering" of curved surfaces, inclined planes, arcs, holes. The model is available in several versions, including multi-color. It takes approximately one hour to print a standard size 3D Benchy.
Download model on Thingiverse

2. All-in-one 3D printer test

A comprehensive test model for a 3D printer will allow you to check the quality of printed overhangs, bridges, extrusion stability, the possibility of “snot” and the dependence of the result on temperature. An important advantage of this model is the instructions for it, which indicate potential solutions to various problems.
Quite a complex model in terms of setting all the parameters, but it's worth it, try it.
Download Thingiverse model

3. XYZ 20mm Calibration Cube

The main purpose of the XYZ 20mm calibration cube is to establish the dependence of the movement of the extruder on the step of the motor. A test model for a 3D printer helps to make sure that 20 mm in the drawing corresponds to 20 mm of the printed product. At the same time, the calibration cube helps to establish the dependence of the degree of extrusion and print quality on the temperature of the extruder.
Download Thingiverse Model

4. Matter Hackers' Mascot Phil A. Ment

This is a small astronaut figurine that has elements designed to test 3D printing.
These are small inserts, small relief details, overhangs, vertical and horizontal cylinders, fillets, chamfers, lintels and a perfectly domed helmet.
A feature of the model is the ability to obtain accurate data for different dimensions of the printed product.
Download model on Thingiverse

5. Smart compact temperature calibration tower

The calibration scale demonstrates the capabilities of the 3D printer when printing at different temperatures with one filament. The test model clearly shows the quality of overhangs, lintels, tensions, and the product can also be used to judge the ability of a 3D printer to print curved surfaces with a certain plastic.
A simple and intuitive tool allows you to find out the possibilities of materials that have not previously been used in work or printed with only one temperature.
It is important to consider that the print temperature setting for each signed element (floor) must be set in the slicer or manually in Gcode.
Download model on Thingiverse

6. Open-Source Printer Evaluation
This is a universal print model from Kickstarter and Autodesk. It was created taking into account the experience of using other models for testing. It contains bridges, overhangs, fine detailing and elements for assessing the spatial accuracy of 3D printing.
Download model on Github

7. Economical Stringing Test

When printing complex-shaped objects, without knowing the capabilities of the filament and the printer, the user may encounter stringing (from string - string), and in Russian simply “snot” - when plastic reaches for the extruder, forming thin plastic fibers in the air. Such “snot” appears when the extruder is idle. To avoid this, the retract function is used - the retraction of the filament during idle movement. Correct setting of the retract level requires consideration of extruder speed, extruder temperature and filament properties.
This test model is used to quickly check the correct setting of the 3D printer. If the strings between the vertical pyramids do not form, then the settings are correct. If horizontal plastic filaments appear, then some of the 3D printing parameters should be changed.
Download model on Thingiverse

8. PolyPearl Tower (Pearl Tower)

The design features of the model allow you to check the quality of jumpers, bends, protrusions, fix the appearance of “snot” and establish the strength of the model as a whole. This model can also be used as a stress test that determines the physical limits of a filament at a given temperature and print speed.
Download model on Thingiverse

To improve your filament printing skills on your printer, we highly recommend doing a couple of test prints from this article. Thus, you will save more on plastic, because you will use the desired print settings.
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10 models for 3D printer calibration. Set up your printer

Before you start printing on a 3D printer, you need to test it. For this, special models are most often used to diagnose and calibrate the device. Next, we will list the top 10 models for calibration, in our opinion.

3D Benchy

Among all 3D printing tests, the flagship is 3D Benchy. This model is a boat that can test everything from protrusions to extrusion. If you want to test your 3D printer, then the bench will help you determine the optimal settings for the ideal result. On Thingiverse, more than three thousand users posted photos with their samples, and the boat itself was printed by more than a hundred machines and no fewer materials.

Model reference


A very interesting model, which is called “all-in-one”. Everything is presented in the model: canopy, bridge, string, temperature and belt tension test, extrusion. This is an ideal model for testing the device at several levels at once. A manual is included with the model to help you troubleshoot any issues you find. On Thingiverse, more than 75 users have posted test results on different 3D printers and different materials.

Model Reference

XYZ Calibration Cube

Very simple and fast model for testing. This is a cube with a side of 20mm. It helps to gain dimension by adjusting the steps in millimeters. Also, the model allows you to test extrusion, vibration, temperature. This cube was printed simply by countless 3D printers and a variety of materials.

Model Link

Cali Cat

Nice little calibration cat or just Cali Cat is a simple model that allows you to test the accuracy of the device, as well as detailing, lugs, bridges, vibration and extrusion. And all this in just one hour. More than 2.5 hundred users have submitted their test results on the service.

Model Reference

Phil A. Ment

The MatterHackers Mascot is a Phil A. Ment test model. It was originally intended for manufacturers. The description mentions the fact that Phil has several functions. And they were originally designed specifically for 3D printers. The model has small inserts, relief details, cylinders of vertical and horizontal orientation, ledges. In addition, the model contains chamfers, bridges and fillets. And this miracle is performed by a domed helmet. The record size on the service is 5,1397mm. A total of 84 models were published.

Model Link

Calibration Temperature Tower

You can use this model to adjust the heat of your 3D printer. You can also test for different materials at what temperature the print comes out better.

NEW model Autodesk

This is a new model, or rather not even a model, but a whole procedure that will allow 3D printer manufacturers to show all the capabilities of devices to Kickstarter supporters. And of course, calibrate. The test was developed by Andreas Bastian and is a consolidated STL file that is able to test the system for the following indicators:

  • authorization;
  • alignment;
  • accuracy;
  • bridge, etc.

The model has it all. For example, if the 3D printer is set up well, then the horizontal function will be performed with a minimum of problems.

Model Link

PolyPearl Tower

If you want to test curves, cuts, bridges, cuts, then this model can be a great solution. In the description for this test model, the name "torture tower with a twist" appears. It is worth trying to use it for calibration.

Model Link

Rapid Screening

This model is a very quick test to check temperature, cooling, and retract function. Among the advantages of the model is its cost-effectiveness. The model will weigh only 0.23g. With its help, you can immediately remove the "strings".

Model Reference

Parametric Calibration Object

A particular difficulty in calibrating a 3D printer is lowering the stage level. With this model, you can draw the right conclusions to improve the first layer of printing, and as a result, get better prints.

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