The Short Version
I run STLACCESS as a personal hobby. I am not a company, a law firm, or an engineer. In one breath:
- The tools are free, run in your browser, and don't collect personal information.
- A tiny anonymous counter counts visits. It stores non-personal details in a Google Sheet. That's the only "tracking" on the whole site.
- Some pages show static third-party ad iframes. They use no cookies or tracking — see the Privacy Policy for details.
- The percentages are tested on my own printer — but your results can vary by slicer, printer, and calibration.
- Game names like Warhammer or D&D are used for reference only. I don't own them.
- There are no accounts, no age checks, no selling, and no hosting of STL files.
- If you message me, the Contact page's button takes you off-site to my Google Form, which asks for your name and email so I can reply. I keep your message only until we're both satisfied — then it's deleted.
Accessibility
I built this site to be usable by everyone. It works cleanly with keyboard navigation and screen readers without getting in your way.
- High contrast layout
- Screen reader labels
- Simple, clean HTML structure
Your Data
There are no cookie banners, no personal data collection, and no invasive analytics here. The only analytics is a small custom web observer script — an anonymous, cookie-free visitor counter — sending non-personal visit details to a private Google Sheet I can open. No identifiable data is stored or shared. The one exception: if you message me, the Contact page sends you to my Google Form, which collects your name and email so I can reply — I delete it as soon as we're done.
- Cookie-free web observer only
- Calculators run in your browser
- A tab-only session ID (cleared when you close the tab)
- Open and honest setup
The Visitor Counter (Web Observer)
The only thing on this site that "watches" visitors is a tiny web observer script. Think of it like a hand counter at a shop door — it counts people coming in, nothing more. It is not a spy. It uses no cookies, and it does not collect your name, email, or IP address — nothing that tells me who you are.
When a visit happens, the observer sends a few non-personal details to a Google Apps Script (a small program that lives in Google's cloud). That script saves them into a Google Sheet — a spreadsheet that only I can open, on a Google Drive account protected by two-factor authentication. The spreadsheet stores exactly these columns:
timestamp_utc · received_utc · date · time · page · event · event_value · referrer · traffic_source · ai_source · device · viewport · browser · os · language · visitor_type · scroll_depth · session_id
In plain words, that means:
- Which page you looked at (page).
- Which website or link brought you here — reduced to its address and page path, with any tracking parameters removed — plus a coarse label for how you arrived (referrer, traffic_source: direct, search, social, or referral).
- What kind of device and screen you used — phone, tablet, or computer (device, viewport).
- Which browser family, a coarse operating system label, and your browser's language (browser, os, language).
- How far down the page you scrolled — recorded on a rolling basis as you read, empty on pages you don't scroll (scroll_depth).
- Time stamps so I can see when people visit (timestamp_utc, received_utc, date, time).
- A random visit ID so two visits aren't counted as one (session_id), and a simple new or returning label (visitor_type) — worked out on your device from a locally stored random ID that never leaves your browser.
- A few small reserved labels (event, event_value, ai_source) — these stay empty for now.
Like Cloudflare, the Google servers that run the collector briefly see standard network data — such as your IP address — purely to deliver the request to their cloud; none of it is stored in the sheet.
None of these can be used to find out who you are, and I never sell or share any of this with anyone. I use it for one thing: to know which pages people actually find useful so I can spend my hobby time on the right ones. You can switch the observer off for your browser permanently by visiting any page with ?admin=1 appended to the address. The Privacy Policy explains this in more detail.
How This Site Is Built (GitHub & Cloudflare)
The code for STLACCESS is maintained on GitHub and built and hosted by Cloudflare Pages. When I make a change, I push it to GitHub, and Cloudflare Pages automatically builds the new version of the site and puts it online. GitHub stores the code; Cloudflare serves the pages.
What Cloudflare is
Cloudflare runs a huge network of servers all around the world (a "content delivery network"). When you visit stlaccess.com, your browser talks to the Cloudflare server nearest to you, so the page loads fast no matter where you are. It also protects the site from attacks.
What Cloudflare can see (and I can't control)
Because your requests travel through Cloudflare's servers, Cloudflare may collect technical information — such as your IP address, browser type, and which pages you request — so it can deliver pages and keep the network secure. That data belongs to Cloudflare, is handled under Cloudflare's own privacy policy, and I never see or store it. I cannot switch that off, because it's simply how Cloudflare's network works. Cloudflare Pages also keeps its own service and build logs.
So, honestly: I only see the anonymous numbers in my Google Sheet. Cloudflare may see more technical data, but it's theirs, not mine, and it's outside my control.
If You Message Me
The Contact page has a "Send me a message" button. When you click it, you leave this site and are taken to a Google Form I set up for replies. That form asks for your name, your email address, and the content of your message — so I know who wrote it and can write back to you.
Your response is stored on my Google Drive (protected by two-factor authentication), where Google Forms keeps it. I hold onto it only for the duration of our conversation — while we're working through your question or issue. As soon as the matter is resolved and we're both satisfied, I delete your message, your name, and your email address.
Everything else on this site collects nothing personal. This is the one exception, and it only ever happens if you choose to message me.
Game Names & Trademarks
Game names like Warhammer, Star Wars Legion, Dungeons & Dragons, and Bolt Action belong to the companies that make those games. I mention them only to explain which miniature scale a game uses — like a librarian putting a book into the right category on a shelf.
STLACCESS is entirely independent. I am not affiliated with, backed by, connected to, or endorsed by Games Workshop Limited, Disney, Wizards of the Coast, Atomic Mass Games, or any other miniature brand. I do not sell, host, or redistribute their files — or anyone else's STL files. If I've used a name in a way its owner doesn't like, tell me and I'll fix it right away.
The Math Disclaimer
The tools here use scale math based on a 175cm human baseline, and I test every number on my own printer before publishing it. But here is the honest part: your results can be different.
3D printing depends on your slicer, your printer, your filament, your nozzle, and — most of all — how you have set up and calibrated your own machine. Two identical printers can print differently if one is calibrated well and the other is not. Material shrinkage (typically 0.2-0.5% for PLA/PETG), specific slicer settings, and even how a sculptor stylizes a model can all change the final result.
Treat my percentages as a great starting point, not a promise. Print a small test piece first, and adjust for your own setup. Nothing here is a guarantee.
No Guarantees
I run STLACCESS as a personal hobby. The site and its tools are provided "as is" with no warranty of any kind — no promise that the numbers are perfect, that the site will never break, or that it suits your particular purpose. I'm a hobbyist, not a professional engineer.
Do not use this site for anything where a wrong measurement could damage equipment, cause injury, or cost you money. To the fullest extent the law allows, I am not liable for anything that goes wrong when you use the site.
A Note for Visitors Everywhere
The internet means people from all over the world can visit this site, and I'm glad they can. Different countries have different laws, and I can't promise to know all of them. This is a small hobby project, run by one person.
If any part of these rules is not allowed in the country where you live, that part does not apply to you — but everything else still does. You are responsible for following the laws that apply to you where you live. This page is meant as an honest, easy-to-read explanation, not as legal advice.
See an Issue?
If something looks wrong, a conversion isn't hitting right for your prints, or you spot a problem with how the site handles layout accessibility, just open an issue on the GitHub repository. I built this for the 3D printing and tabletop gaming community and want to keep improving it.