What we collect
Server logs record the requested URL, a truncated IP address, the user agent and the response status. They are kept for 14 days and used only to spot broken links and abusive download rates.
Download counters are aggregate numbers on a design. We do not build a profile of which files a particular visitor has taken.
Analytics
Analytics is off until you accept it in the cookie banner. If you accept, we load a privacy-configured analytics script that measures page views and Core Web Vitals. Declining changes nothing about how the site works.
You can change your choice at any time using the 'Cookie settings' link in the footer; the banner reappears and your previous choice is cleared.
Cookies
One strictly necessary cookie stores your consent choice for twelve months. Rate limiting uses a short-lived server-side counter keyed on a hashed IP address; it is not a tracking cookie and cannot be read by other sites.
If you accept analytics, the analytics provider may set its own cookies. Their names and lifetimes are listed in the banner before you decide.
Contact form
Messages you send through the contact form are stored in our database and forwarded to the workshop inbox. We keep them for twelve months so we can follow up on geometry bug reports, then delete them.
We never sell, rent or share contact details. To have your message deleted sooner, reply to it and ask — we action deletion requests within seven days.
Your rights
Under UK GDPR and the EU GDPR you can request access to, correction of, or deletion of any personal data we hold, and you can object to processing. Email the address on the contact page and we will respond within 30 days.