adverseEngineering

Refund Policy

Last updated: October 2026

The shop sells files you download. After a file is on your computer, you still have it even if we return the money, so we only refund when the file itself is the problem, or when you never received it. A change of mind after a successful download is not a refund. If you have not downloaded yet, look at the Cancellation Policy instead.

We refund these cases

Email us within 7 days of the payment if any of these are true:

The download never appeared and a resend also failed. The zip or the STL will not open in a normal slicer. A part described on the product page is missing from the folder. The file is a different design from the one shown on the page you paid for.

Tell us the checkout email, the product name, and what you tried. If we can fix it by sending a working file, we do that first. If we cannot, we refund the price of that file. If the bad file was part of a pack, we refund the share of the pack that belonged to that file, not the whole pack, unless every file in the pack has the same fault.

We do not refund these cases

A print that came off the bed, stringed, or looked rough because of temperature, speed, a worn nozzle, or wet filament. A model you scaled and then did not like. A colour that does not match the photo, because the photo is a render or a sample print, not your filament. Buying the same file twice by mistake after you already downloaded it the first time. Deciding, after a good download, that you wanted a different vase.

If you are not sure whether your printer can handle a shape, ask us before you pay. We would rather tell you it needs supports than argue about a refund later.

How the money goes back

A refund goes to the same card that paid. Banks often take a few working days to show it. We email you when we have sent it. We do not refund to a different card or to cash.

How to ask

Email info@cadverseengineering.com from the address you used at checkout, or put that address in the message so we can find the order. Include the product name and a short note of the problem. A screenshot of the slicer error helps if the file will not open. We reply by email. Please do not send a second request the same day. It does not make the first one faster, and the two notes get split.