Overture PETG Optimal Slicer Settings – Explained

While the generic profiles you can find in your slicer for each type of filament are usually good enough to avoid print failure and get your 3D printer to put out a decent product, having a separate profile for each brand and filament type combination is one of the quickest and impactful optimizations you can do to increase your print quality.

In this guide, we will take you through the process of configuring the set of slicer settings that require specific optimization for printing with the Overture brand of PETG filament in particular and share with you the Cura configurations we have prepared for using Overture PETG with both the standard Bowden extruder Ender 3 models and the Ender 3 S1.

Overture PETG Optimal Slicer Settings

In their specifications, Overture mentions the printing temperature, build plate temperature, and the fan speed they recommend using when printing with their PETG, which are the parameters that will be our primary focus in this guide.

While we haven’t seen any mention of it in the specifications, we will also include print speed in the guide based on our own experiences, as it’s an essential part of configuring the slicer settings as optimally as possible.

Printing Temperature

As the materials that a filament is composed of affect the filament’s melting point, you’ll notice that the recommended print temperature values (usually listed in the specifications section of the product page) show slight differences across various brands of PETG.

Because of this, following the manufacturer’s recommendations (instead of printing with the generic PETG profile in your slicer) is the best way to ensure that you’re using a print temperature value that won’t create under-extrusion or over-extrusion issues during your prints.

cura printing temperature


In the case of Overture PETG, the manufacturer’s recommended printing temperature range is 230°C to 250°C, as mentioned on the filament spool itself and visible on the images of the spool, which you can also see on the manufacturer’s related product page.

With this in mind, our recommendation as a starting point for the printing temperature would be 240°C for Overture PETG, and even though this temperature value most likely won’t produce perfect results from the get-go, it will allow you to complete your first print successfully, which you can examine to refine your printing temperature value further.

When examining the part you have printed, coming across signs such as stringing, dimensional inaccuracies (sagging etc.), and a loss of visual quality would mean that the temperature is too high, in which case you can reduce it by 5°C at a time, and keep testing until you find the value where such issues don’t happen.

On the other hand, if you’re noticing signs such as poor layer adhesion, gaps between layers, and practically anything else that would suggest your 3D printer is under-extruding, then the correct course of action would be to increase the printing temperature by 5°C at a time instead, and once again, keep testing until the results are satisfactory.

If you’re using a 3D printer with a PTFE-lined hotend, such as the stock Ender 3, we highly recommend against going above 240°C in printing temperature as it can be dangerous.

Finally, an alternate method you can utilize to fine-tune the printing temperature value is to print a temperature tower, which is practically the combination of a 3D model that is split into parts for distinct printing temperature values and a script that makes it possible to print each of these parts at different temperatures within the same printing process.

So, with a temperature tower at hand, you can compare how each printing temperature behaves side-to-side, quickly pick out the one that has produced the best results in terms of visual quality, and start your PETG journey with a perfectly-tuned printing temperature value.

While there are many different ways to print a temperature tower, our favorite method of getting things up and running as quickly and conveniently as possible is to use the Calibration Shapes plugin for Cura, as it bundles both the 3D model and the script necessary for the temperature tower and makes it available with a couple of clicks.

To learn more about the plugin and how you can use it, you can refer to the plugin’s main GitHub page and the specific GitHub page for the temperature tower option we recommend selecting, which is PETG TempTower 260 230°C.

petg temperature tower in cura


Print Bed Temperature

Alongside the melting point of the filament, one other attribute that gets impacted by the materials used to produce the plastic is the glass transition temperature (the temperature where the plastic softens), which, in turn, affects the print bed temperature you should be using.

So, once again, the best way to configure the print bed temperature correctly is to also refer to the manufacturer’s recommendations, as this will ensure that you don’t experience any problems stemming from the bed temperature being too high or too low.

cura build plate temperature


Regarding print bed temperature configuration, Overture recommends using a value between 80°C to 90°C, which, once again, is written on the filament spool and therefore is a piece of information you can also see online by visiting the product page.

When setting the print bed temperature yourself, our recommendation would be to use 80°C as a starting point, which, in our tests, once again with an Ender 3 V2 Neo, provided excellent bed adhesion without any problems.

Once you see the results of your test print, you can refine the print bed temperature value further by either incrementing or decrementing it 5°C at a time if you see signs of the bed temperature being too low, such as warping and poor layer adhesion, or too high, such as elephant’s foot, and keep testing until you find the value that produces the best results.

Fan Speed

While fan speed is a parameter that’s more affected by the use case of the part you will be printing, especially in the case of PETG, rather than the filament’s brand, optimally configuring it is still critical for the success of your prints.

cura fan speed description


Since the fan speed value you’re using has a considerable impact on the strength of adhesion between the layers when printing with PETG, unlike PLA, where even using a fan speed value of 100% will give the layers plenty of time to form strong bonds, the fan speed configuration essentially boils to making a decision between visual quality and part strength.

So, for a balanced approach where your print will have adequate visual quality and be strong enough to bear some load, we recommend opting for a fan speed value of 40% to 50% when printing with your spool of Overture PETG.

On the other hand, in a case where you require the part you have printed to have the maximum amount of strength possible, with no regard for visual quality at all, such as when you’re printing a replacement part, going for a low fan speed, such as 10%-20%, or even shutting the fan completely off, is the best approach.

Similarly, in the opposite scenario, where visual quality is the most important, and strength is not a concern at all, such as when printing a figurine, you can go ahead and bring the fan speed value up all the way to 100%, which will ensure that the layers cool down without any visual defects start showing up.

Bonus Tip: It’s always a good idea to apply some cooling when printing models that are thin or have thin sections (layers with short print times), even when you’re going for maximum strength, as such layers otherwise won’t have enough time to cool down before the next layer comes, which will result in severe quality issues (sagging & dimensional inaccuracies) that can even lead to print failure in some cases.

Finally, for overhangs and bridges, you’ll most likely want to increase the fan speed to the range of 70% to 80% as a rule of thumb, regardless of whether quality or strength is your priority, which should cool them down quickly enough to prevent drooping while also avoiding layer adhesion issues.

If you would like to conduct your own tests to find the best fan speed value for bridges of various lengths and overhangs of various degrees, we would highly recommend printing the Overhang Test and Bridge Test models in the Cura Calibration Shapes plugin with different fan speeds of your choice, which will allow you to clearly see how each fan speed value behaves in any overhang and bridge scenario.

calibration shapes overhand and bridge test


Print Speed

Similar to the fan speed, another slicer setting that’s not brand-specific but still essential to configure correctly is the print speed, as it has a considerable impact on both the success of the print and the print quality.

cura print speed description


So, if you have already been printing successfully with different brands of PETG, you can use the same print speed value for Overture PETG as well, and you won’t have any issues regarding print speed configuration.

On the other hand, if you’ll be printing PETG for the first time with Overture PETG, our recommendation would be to start out with a print speed value of 50 mm/s (assuming a standard line width of 0.4 mm and a layer height of 0.16 mm with a 0.4 mm nozzle), which should be quick enough not to increase print times too much, but also not too fast that it introduces problems.

Once you have a printed part in your hand, you can then check it for problems that can stem from using a too-high print speed value, whether it’s under-extrusion (usually presents itself in the form of gaps and holes appearing between layers), poor layer adhesion, or ringing, and keep the test prints rolling by reducing the print speed 5 mm/s at a time until you find the spot where issues don’t occur anymore.

On the other hand, if your print comes out clean with no print speed-related issues in sight with the starting value of 50 mm/s, you can go the opposite way instead and increase the print speed 5 mm/s at a time until you find the highest value where issues don’t occur, as using the highest print speed possible is highly beneficial due to it reducing print times.

Finally, one last thing we recommend doing when configuring the print speed is to also slightly increase the printing temperature (1-2 °C per 5 mm/s will do) whenever you increase the print speed, as this will ensure that the plastic can freely flow even when it’s moved at a faster pace.

Example Cura Overture PETG Configuration for Ender 3 (V2 & Pro & Neo)

Below are the general-purpose Cura settings we have prepared for printing Overture PETG with a Bowden extruder Ender 3.

  • Print Temperature: 240°C
  • Bed Temperature: 80°C
  • Print Speed: 50 mm/s
  • Layer Height: 0.16 mm (with a standard 0.4 mm nozzle)
  • Retraction Distance: 6 mm
  • Retraction Speed: 40 mm/s
  • Fan Speed: 40% / 70% for overhangs & bridges
  • Initial Layer Height: 0.2 mm
  • Initial Layer Speed: 15 mm/s
  • Printing Temperature Initial Layer: 240°C

Example Cura Overture PETG Configuration for Ender 3 S1

Below are the general-purpose Cura settings we have prepared for printing Overture PETG with an Ender 3 S1.

  • Print Temperature: 240°C
  • Bed Temperature: 80°C
  • Print Speed: 40 mm/s
  • Layer Height: 0.16 mm (with a standard 0.4 mm nozzle)
  • Retraction Distance: 1 mm
  • Retraction Speed: 40 mm/s
  • Fan Speed: 40% / 70% for overhangs & bridges
  • Initial Layer Height: 0.2 mm
  • Initial Layer Speed: 15 mm/s
  • Printing Temperature Initial Layer: 240°C

Conclusion

Now that you have all the necessary information to create a separate slicer profile for Overture PETG, you can enjoy the increased print quality that comes from the optimizations you have performed and switch between different brands of PETG whenever you wish without having to re-configure them over and over.

That being said, as 3D printers can behave differently than one another, even with the same set of slicer settings, you might have to go through some trial and error until you perfect the configuration in a way that works best for you.