Best Websites 3D Printer G-Code Files for Free

With the help of a 3D printer, you can 3D print a whole lot of things and bring them from the virtual to the real world. But you don’t know 3D modeling and want to print some useful, playful, or decorative items, but you don’t know where to find these G-code files. Well, here I have listed some reliable and awesome websites from where you can download 3D models in STL files and then convert them into a G-code file in your 3D printer’s slicer software.

Where Do You Find 3D Printer G-Code Files?

Well, there are many sources where you can find G-code files like searching online, specific Patreon channels, etc., but there are many websites where designers share their paid and free models for users to print. But remember, G-code files are especially designed for specific 3D printers with their specifications. So, I would recommend, instead of G-code, going for an STL file as .stl is the file extension of a 3D model which you slice in slicer software and convert it into a G-code.

Best Free 3D Printer G-Code Files

Thingiverse, MyMiniFactory, Printables, Cults3D, GrabCAD, STLFLIX are some of the great platforms from which you can download amazing G-code/STL files to 3D print. Most of it is free, and you can also get paid 3D models too.

These are some of the Best Website to download 3D models

WebsiteCommunity-DrivenHigh-Quality ModelsFree Models AvailableProfessional UseEasy NavigationMonetization for Designers
Thingiverse
MyMiniFactory
Printables
Cults3D
GrabCAD
STLFLIX

Thingiverse

Thingiverse was started in 2008 by MakerBot and it is one of the most popular 3D model platforms among all, and it is deeply appreciated by the whole 3D printing community because it is super easy for designers to publish, and users can remix their designs too, which are easy to navigate, both the original design and the remix.

From TV and film characters to functional objects like pen holders, Thingiverse can get you almost any type of 3D model you want.

Thingiverse has one of the most user-friendly interfaces, and you can easily navigate through the site and download the whole model or just one file easily.

MyMiniFactory

MyMiniFactory is also one of the most popular websites among 3D printing enthusiasts. MyMiniFactory is most famous for its amazing and decorative props and cosplay 3D models. And a large collection of high-quality 3D printing models.

One thing that makes MyMiniFactory different from others is, the creator can monetize their 3D models, which is very beneficial to support the creator.

Printables

Printables is a new and rapidly growing 3D model website started by one of the popular 3D printer manufacturing companies called “Prusa”, and like others here also creators can share their model, and users can easily download it for free.

The best thing about Printables is its super fresh library of 3D models. It has some great quality creators who publish their designs on Printables first, and it provides points to the creator which they can redeem for Prusament Filament.

You can find 3D models in almost all the categories from Decorative to Plants to functional print. Almost everything you want to print.

Cults3D

Cults3D is also one of the most popular 3D model websites, and I personally use it myself as they provide some of the best quality 3D models out there. On Cults3D most of the good quality and useful 3D models are paid as the main aim of the website is to act as a 3D model’s marketplace where creators can monetize their 3D model.

Another best thing about Cults3D is if you face any problem in assembling the 3D model or anything like that, you can directly ask the creator regarding this.

GrabCAD

Grab3D is another amazing 3D model website but unlike others, Grab3D has a big library of 3D models of electronic components with various other types of models. So if you’re searching for some beautiful vase then Grab3D might not be a good platform to go to but if you’re making your own 3D printer and want 3D models of PSU, Hotend, Aluminium profiles etc., then it is a great place for you.

Another biggest differentiating factor for Grab3D is you can find .step files unlike other websites where you can only find STL. If you don’t know the difference between .step and .stl file so, basically you can’t edit STL file but with .step you can easily edit and modify because .step file contains all the data of the model unlike STL file.

STLFLIX 

STLFlix is the latest popular 3D model website launched in 2021 and it is the most different from others as this website has its own designers who design and publish 10-20 new models every Friday and extra models on random dates so roughly over 40 models per month.

So if you’re wondering how this website works? Then STLFLIX works on a subscription-based model where you can buy monthly or yearly subscriptions and right now they’re even giving lifetime subscriptions just at $299.

STLFLIX’s library includes original and unique models among all these websites. Their 3D models are by their Design Team and models from partners such as Cripta Studios and Midas Forge.

Here are details of STLFLIX’s subscription plan 

Personal License (Monthly/Yearly/Lifetime):

  • Monthly: $14.9 per month.
  • Yearly: $89.3 total (equivalent to $7.45 per month).
  • Lifetime: Initially $199 (sold out), now $249 for the second lot.

Commercial License (Monthly/Yearly/Lifetime):

  • Monthly: $29.9 per month.
  • Yearly: $179.9 total (equivalent to $14.95 per month).
  • Lifetime: $299​​.

How to Convert STL into G-Code

Like I said earlier, all these models will be in STL file format and you have to convert it into a G-code file according to your 3D printer. So, here’s how you can do it.

  • Load Your STL File in Cura: First step is to open Cura or any slicing software you then click on the ‘Open File’ button to load your STL file. Once loaded, you will see it displayed in the center of the screen on the build plate.
  • Configure Slicing Settings: The second step is to configure settings like layer height (0.15-0.20 mm is standard), infill (20-40% for most prints), and wall thickness (0.80 mm is typical). These settings dictate how Cura slices your model to create G-Code.
  • Slice Your Model: AAfter you have configured the slicing settings then, click on ‘Slice’ to generate the G-Code. Cura will then create a file with a “.gcode” extension.
  • Save the G-Code: Now you’re done just Save this file to your computer. You’ve now successfully converted an STL file to G-Code. Now Transfer that .gcode file into a 3D printer and print.

Conclusion

Other than these, there are many other platforms too which provide high-quality 3D models for hobbyists to professionals. Whether you want a community-driven environment, high-quality models for professional use, or a large library for commercial projects. Platforms like Thingiverse, MyMiniFactory, Printables, Thangs, Cults3D, GrabCAD, and STLFLIX have their own unique advantages.

FAQ

How do I download STL files for free?

  • You can download free STL files from websites like Thingiverse, Cults3D, MyMiniFactory, and others. These platforms offer a wide  range of 3D models in STL format which are best for various 3D printing projects​​​​​​​​.

What 3D printers print STL files?

  • All 3D printers can use STL files as the file format for a 3D model. But , STL files need to be converted into G-Code files using slicer software like Cura, as 3D printers cannot  understand STL files​​ directly.

Where can I 3D print for free?

  • You can find free STL files for 3D printing on websites like Cults (which offers both free and premium models) or you can STL file search engines like STLFinder, Yeggi, and 3DfindIT.com, these can help you find a wide variety of free 3D printable models​​​​​​.

What is better than STL?

  • STL is the most widespread format in 3D printing but the 3MF format, developed by Microsoft and was released in 2015, have unique properties. The 3MF format is designed to be more intelligible and reduce errors during the printing process, making it a better option than STL for many uses.

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