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3D Printing

What is 3D printing?

It is a 3 dimensional printing process that creates a real object from a 3D digital file. There are several ways to achieve this object, they all rely on the deposition and solidification of material layer by layer.

What is a STL file?

The STL file is the common file format for 3D printing. It means Stereolithography and was invented in the 1980s by one of 3D System founders. A STL file for 3D printer allows you to create a mosaic of triangles. These triangles have common edges, which means that the machine is able to know their location and orientation. This format does not include information about the color, texture or other usual parameters of a CAD model. You can also use the OBJ format to 3D print.

Can I print in color?

Some 3D printers can print in color. In this case, the information must be informed in the 3D file. The cheapest printers only print in one color for now.

What material can I print?

It depends on your 3D printer, the most common material is plastic (ABS or PLA), but it is possible to print metal, silver or wood. For more information, you can read our article 3D printing: an introduction to the different technologies.

What is the maximum size for an object?

Again it depends on your 3D printer. More precisely it depends on the size of its printing plate.

What is 3D streaming?

This is a process that sends directly the models to a 3D printer without having to download them beforehand. It is a solution offering the possibility to secure and control 3D file sharing.

How to fix 3D printing problems?

Personal 3D printers are still at a stage where not all 3D printed objects come out well the first time. You will have to do it several times and start printing again and again by changing some parameters. It is a learning and knowledge that will be done over time. The more you 3D, the more you will know your 3D printer and produce more and more successful objects. We have listed a whole guide here on Cults that will allow you to identify and fix 3D printing problems. A very good document for all beginners!

How to recycle your 3D prints?

As we all know from now on, 3D printing can take a long time and quickly invade all your drawers and cupboards! This is a very good sign because it means that you have full use of your 3D printer. To make the most of it, we have listed a few tips that will allow you to reuse equipment. For example, on this article, we explain how to recycle or reuse your empty filament spools and on this article we explain how to recycle or reuse your fail prints. Useful and original advices to make sure you enjoy your hobby at 100%!

Is 3D printing compatible with food contact?

This is a concern often expressed in the makers' community. Indeed, some filaments are not recommended for food-related use. But today there are many materials that are harmless and can be used to eat or drink. For example, PLA filament, RepRap PP plastic or PETG.


How to join the community?

Create an account by clicking on "Community". After filling out a short form, you will be officially a Cults user.

What if I do not have any 3D printer?

It is possible to get a printed 3D object through Cults even if you do not have a printer. To do this, it's very simple. Select the 3D model of your choice, download it and at the end of the downloading process, you have two additional options. The "Print with local" will allow you to locate a nearby home 3D printer that will achieve your object and the "Print professionally" will offer you the opportunity to order a professional 3D printing of your 3D model and then deliver it to your home.

How to change the URL of my account?

Your URL has been selected based on your nickname, it is unfortunately not possible to change it for now.

What if I lost my password?

In the login form, you can request a new one by email. If you have lost your email, we cannot do anything for you.

How to become a seller?

By default your account is set as a member. When you upload your first creation, you officially become a seller on Cults. To do this, you just have to click on "Upload" (yes, we've thought of everything).

How to get the money from my sales?

In your personal account, you can see all your sales. The income from your sales will be sent via PayPal to the email address that you provided when you registered on Cults. Transfers are not automatic, they are made monthly. The payment threshold is 12 dollars to avoid that you have too many PayPal fees. But if you want to withdraw your money before the balance of 12 dollars, you can simply contact us by email at and we will make the payment.

How can I increase the notoriety of my 3D models?

You want to increase the visibility of your creations? Check out our Cults tips to boost your downloads and sales of your 3D files. By following these tips you will be sure to reach out to the maximum number of people who would be interested by your creations. In order to allow you to take full advantage of our platform.

What are the payment solutions to buy 3D files?

On Cults you have the possibility to pay with PayPal or with your credit card. Your purchases are 100% secure. For PayPal you can pay with your PayPal balance or use your credit card via PayPal. Otherwise, our Braintree online payment system allows you to use your credit card directly. We accept Visa, Mastercard, Maestro, JCB, Discover, American Express, Diners Club International and UnionPay. If you are unable to pay for your purchases online, please contact us via our contact form.

My download didn't work!

Don't worry, you've also received the download link by email. You can download your files later. All purchased files are also available in your personal account, you can download it whenever you want.

Why do I receive a message which says that the 3D file is corrupt when I unZIP the file?

The problem is probably that you have not installed any 3D software to open the STL file on your computer. When you unzip the downloaded ZIP file on your computer (you need a program to uncompress the files as well), we recommend installing the free software Meshmixer to then open the STL file. You can download Meshmixer here, it's a very good software and it's free. This will allows you to edit and modify the STL later. Or, you can simply open the STL files in your 3D slicer and it will work without any problem.

What is the meaning of this symbol © next to the creations?

It means “Copyright”. Except contraindication, all creations published on CULTS are exclusively reserved for private and personal use. It means not selling the model or any derivative of the model for economic or financial gain. For example, you cannot sell the digital model, a derivative or adaptation of that model, nor can you sell prints of the model or make trade of it, unless the designer has given you formally his approval.

Why are my images purple?

You have just uploaded a creation and your images are not displayed immediately? Don't worry, this means that Cults is analyzing the image and saving it before publishing it. It may take some time (depending on the traffic at the same time, disk space, image weight, etc.) but it will be online soon.