I made a better TD calibration card!

The little squares never sat right with me, and I hated having to print out one in black and one in white just to get a good cross reference, so I made one that does everything! It's got white on the right, black on the left, and a hexagon I'm the middle that slopes really steep so you can get an idea of what it'll look like in the final print! I also added a keyring/carabiner hole for easy storage.

https://makerworld.com/en/models/1054495#profileId-1041781

Plate 1 has a card with replaceable text, while plate 2 has a blank card meant for use with a label maker. After I find the TD I write in the back with a sharpie, but a label maker would also work there!

I've also found these are great for just visually comparing to each other for what would be good to use with the image you're using!