You are in

Thank you. The key is in your email.

1. Step 1

   Open the email from Gumroad and copy the whole licence key.

2. Step 2

   Come back to the maker. It is the same page you were just using.

3. Step 3

   Choose Unlock print files and paste the key.

4. Step 4

   Download the A4 and A3 files, the square image, the wallpaper, and the print guide.

If the email has not arrived, check the spam folder. The key works as soon as Gumroad issues it. You need a connection the first time you paste it. Questions go to lumenight@mail.grokbot.com.