Terms of Use — KitSTL
Last updated: November 12, 2026
1. The service
KitSTL (kitstl.com) is a catalog of 3D model files for printing. It is the English-language version of Baixa3D (baixa3d.com) and is run by the same operator: KitSTL is operated by Marcio Chaves, an individual based in Brazil (contact: [email protected]). With a one-time payment, the user gets lifetime access to download the files available in the catalog. Access is to the service of organizing, searching, previewing and downloading — it is not a sale of the models themselves.
2. Third-party content and copyright
Important notice: the 3D models made available on this site were obtained from public sources on the internet (groups, forums and open repositories) and are provided as they are. KitSTL acts as an aggregator and does not claim authorship of the models. We make reasonable efforts to respect third-party rights, but we have no way of verifying who owns each file. If you hold rights to a model shown here and do not want it to be made available, just request its removal — we will take the content off the site promptly, without red tape.
We do not have a designated agent registered with the U.S. Copyright Office. Copyright notices, including DMCA-style takedown requests, can be sent to [email protected] or through the removal request page, and we act on them promptly.
By using the site, the user agrees to use the files for personal purposes and to respect each model's original license, where one exists. Reselling the files is prohibited.
3. Account
Signing up requires a name, an email address and a password. The account is personal and non-transferable; sharing login details may lead to suspension. You are responsible for keeping your password secret.
You must be at least 13 years old to use the site and create an account. If you are under 18 (or under the age of majority where you live), you may only make a purchase with the permission of a parent or legal guardian.
4. Lifetime access, payment and guarantee
Access is paid only once: lifetime access for $19 (USD), paid by card (Apple Pay and Google Pay are also accepted) through Stripe Checkout. Your card details are entered on Stripe's own page and never pass through our servers. There is no monthly fee and no renewal: access does not expire and nothing else is charged. “Lifetime” refers to the duration of the service — it is valid for as long as KitSTL is in operation.
Fair use. To protect the collection from mass copying, each account can download up to 100 different models every 30 days. Downloading again a model you have already downloaded does not count, and the limit frees up gradually, as old downloads reach 30 days.
Satisfaction guarantee. You have 7 (seven) calendar days, counted from payment, to ask for a full refund of the amount paid, through our contact email. You do not need to give a reason, and it does not matter whether you have already downloaded models: if you did not like it, we give your money back. This guarantee is ours, by choice, and it is in addition to any rights you have under the consumer protection laws that apply to you, which are not affected. With the refund, the lifetime access ends.
5. Comments
Comments are the responsibility of whoever posts them. We may remove offensive or illegal content, or spam, without prior notice.
6. Limitation of liability
The files are provided as is, with no guarantee that they are printable or suitable for any specific use. 3D printing involves equipment and materials beyond our control.
These terms are governed by the laws of Brazil, and disputes will be handled by the courts of Brazil. Nothing in these terms limits any consumer rights that the law of your country gives you and that cannot be waived.
7. Changes and contact
These terms may be updated; the date at the top shows the version in force. Questions and requests: [email protected]. See also our Privacy Policy.