Separate PLA and PETG profiles on my 3D printer made a bigger difference than any hardware upgrade

Published Nov 11, 2026, 1:00 PM EST Anmol has been interested in tech for close to two decades now and has been covering all things tech for more than a decade. He started his journey with a blog post, when Google Blogger used to be cool and has covered everything from Windows Phone to Windows 11. Anmol has written for MSPoweruser and Neowin in the past, and is always keen to get his hands on the latest gadgets. When not doomscrolling, you would find him playing video games, reading or catching up on football. In 3D printing, both PLA and PETG are usually considered the starting-out or basic materials that a variety of machines are able to print without a lot of fuss. However, that does not necessarily mean that printing them without tuning the printer settings is always a great idea. In fact, I noticed a jump in quality for my prints when I started using different profiles and specific settings for both materials. PLA and PETG don’t want the same things Temperature is only the obvious difference From the outside, the biggest difference between PLA and PETG is the temperature required for printing. PLA usually requires a nozzle temperature between 190 and 240°C, while PETG is 240 to 270°C, and the same applies to their Glass Transition Temperatures as well. However, this is just a part of the story. Both these materials require fine-tuned print settings, and using a common print profile for both will often lead to stringing and random blobs when printing. This is because of how both materials are made on a more scientific or molecular level. This is also evident in the final printed model, as PETG is able to handle heat close to 80°C while PLA starts to soften at around 60°C. The same goes for strength too, as PETG is relatively tougher than PLA. PETG is often prone to stringing and oozing, so a fine-tuned machine helps ensure you get the best finish on the model. PLA, on the other hand, does not usually cause stringing or oozing unless the filament has absorbed too much moisture. It is also usually recommended to dry PETG, as this, combined with proper retraction settings, can help reduce stringing and get a good finish on the final model. How I built my own profiles Starting from a generic preset Building a new profile from scratch can be daunting for a beginner, but the good news is that you don't really have to do it all yourself. Most manufacturers and filament makers do provide generic presets and profiles that you can either download from their website or that come with your slicer software. Speaking of slicers, most of them also come with built-in calibration tools allowing you to tune the settings as per your liking. This serves as a good starting point for you to build upon and further change the settings to improve the final print. When starting out, don't make big changes in values, as generic profiles, especially from filament manufacturers, are good, and you are looking for that final 5-10% improvement to get the perfect final results. If your slicer does not come with calibration tools, then you can also use third-party websites to download models created by others and use them. Most popular websites have multiple calibration models ready to import into the slicer, and most also include a description of how to read and interpret the results. For my own prints, I printed the temperature tower, retraction test, and print speed tests, which helped me dial in the settings. For instance, the temperature tower for PLA helped me get the exact temperature to use instead of the range, while retraction settings helped me reduce stringing with PETG when retracting the nozzle. Once you are happy with the settings, you can name and save the new settings in your slicer so they are ready to go when you need. Most modern slicers let you have multiple presets, so it's always a good idea to have presets created for each filament material and brand if you are using filaments from multiple brands. PLA from one brand can differ slightly from PLA from the second brand, so it's always a good idea to run calibrations first, then save the new settings so they are available to use when you switch the filaments. Aren’t the default profiles good enough? Why I keep my own anyway After all, the default profiles are supplied by your printer or filament manufacturer. However, they are usually created for the average spool of filament, especially the ones already there in your slicer. They don't take into account the outliers or other external factors like humidity, temperature, and whether someone is using an enclosure or an open printer. Hence, these, as the name suggests, are generic or default and do not cater to your specific needs. It's always a good idea to leave defaults alone as a fallback and build your own profiles and presets, as they have the data for your exact use case. New presets don't cost extra, just a little bit of time and patience, and once done, they can last you for a long time. Even once you have a profile set up, it is a good idea to run calibrations again before starting a big print or one that is going to be time-consuming. This ensures that any changes you may need are dialed in before you send the model to print, and you can save yourself from print failures or quality issues once the print is done. One profile per material is a habit worth keeping Save the settings that work Both PLA and PETG are fairly easy to print and don't require additional setup like a dryer or even a multi-color setup like the AMS. However, both are not easy in the same way, and they definitely do have their own quirks that need to be tuned well in the slicer before printing to ensure the best possible outcome. Setting up a new profile for each does not cost extra and takes maybe a full afternoon, but it has a great payoff in terms of the finishing and reducing print failures. Creating a new profile after buying a new spool of filament is a good habit that provides a great return in the long term; not to mention, once you have profiles set up for your regular spools and materials, you don't really need to spend additional time and can just pick up the profile from the slicer and start the print.