Privacy Policy

Last updated: 2026-05-28

This is the short version: Printytron collects the bare minimum needed to run the tool, doesn't sell your data, and may review your prompts and generated models to improve the service. The longer version follows.

Who we are

Printytron is operated under the name Printytron.com, based in Melbourne, Australia. If you want to reach us about anything in this policy, email legalstuff@printytron.com.

What we collect

If you're using Printytron anonymously (no account):

• A session cookie (random ID, no personal info in it) so we can keep your build session yours.
• The prompts you type and the models that get generated from them. Prompts are stored privately and never shown in the public gallery.
• Basic usage data (page loads, button clicks, errors) via PostHog analytics — see "Third parties" below.
• Your IP address, briefly, for rate limiting and bot protection (via Cloudflare).

If you create an account:

• Your email address (required for sign-in and account recovery).
• A password hash (we never see your raw password).
• Everything in the anonymous list above, now tied to your account.

When you download a model:

• The final STL, thumbnail, and OpenSCAD source for that model get stored so the gallery page works and so you can come back to it later.

We do not collect:

• Payment information (we don't currently charge for anything).
• Real names, addresses, phone numbers, or any identity documents.
• Tracking pixels or third-party advertising cookies.

How we use it

• To run the tool: generate your models, render the viewer, store your downloads, enforce quotas.
• To keep the service working: detect abuse, rate-limit bots, debug errors.
• To understand what's working: aggregate analytics on which features get used, where people get stuck. We look at patterns, not individuals.
• To talk to you (if you have an account): verification emails, occasional service notices, product updates.

We may review your prompts and generated models to improve Printytron — specifically, to refine the AI system prompt, the tools the AI has access to, and the orchestration logic behind the scenes. We don't currently fine-tune or train AI models on your data, but we may do so in future and will update this policy if that changes. Either way, if you'd rather your data not be used for service improvement at all, email us and we'll exclude your account.

Third parties

Printytron runs on a small stack of infrastructure providers, each handling a slice of data:

• Hosting and storage (including Cloudflare, who handle our servers, file storage, and security)
• Product analytics — page views, events, and error tracking
• AI model providers — process the prompts you send while building
• Authentication — handles sign-in and password security

We don't sell data to any of these providers or anyone else. They're tools we use to deliver the service.

How long we keep it

• Public gallery models: indefinitely, until you ask us to remove them or we take them down for policy reasons.
• Your private drafts: until you delete them or the session expires (abandoned sessions get cleaned up periodically).
• Account data: until you delete your account.
• Analytics data: PostHog's default retention applies (currently 7 years for events; we may shorten this).
• Logs and rate-limit data: short-lived, typically days to weeks.

Your rights

Depending on where you live, you have rights under laws like the Australian Privacy Act, GDPR (EU/UK), or CCPA (California). At minimum, you can:

• Access the data we have on you.
• Correct anything that's wrong.
• Delete your account and the data attached to it. Email legalstuff@printytron.com to request deletion.
• Export your models (you can download any model you generated).
• Opt out of analytics — turn on Do Not Track in your browser, or email us and we'll exclude your ID.

To exercise any of these, email legalstuff@printytron.com. We'll respond within 30 days.

Cookies

We use a small number of first-party cookies:

• A session cookie (sid) to identify your build session.
• Auth cookies if you're signed in.
• A PostHog analytics cookie.

No third-party advertising cookies. No tracking pixels.

Kids

Printytron isn't designed for children under 13 (or under 16 in some jurisdictions). If you think a child has signed up, email legalstuff@printytron.com and we'll delete the account.

Changes to this policy

If we make material changes, we'll update the "Last updated" date and, for account holders, send an email. Continued use after a change means you accept the new version.

Contact

Email: legalstuff@printytron.com
Operator: Printytron.com, Melbourne, Australia.

If you're not happy with how we've handled a privacy issue, you can contact the Office of the Australian Information Commissioner (OAIC) at oaic.gov.au.

Legal · About · Home