Leveraging the recently-released Set Focus tool, I’ve designed a tool to help place materials when the crumb tray has been removed, no maths required.
If your material is between the lines while resting on the bottom of your GF – not the crumb tray, you should be able to use Set Focus in the UI. If the top of your material is below the bottom line, use your favorite method (sheets of PG, tiles, 3-D printed stands, matching sets of trained hedgies, etc.) to elevate it and recheck. Repeat until the top is in the sweet spot between the lines.
I recommend elevating materials about halfway between the lines. It should be high enough for the focus to work correctly, but not so high as to interfere with the air-assist scoop.
No-Math Focus Rule v1.3.svg.zip (4.9 KB)
Black = engrave (optional)
Green = score
Red = cut
Before using, make sure that the tool printed at the correct scale.
The long leg is 2 inches (maximum thickness w/o the crumb table), and the short leg is 1/2 inch (maximum thickness with the tray).
Standard Disclaimer – YMMV, use at your own risk. Do not bend, fold, spindle, or mutilate. Make darn sure you printed this at the right size and understand what the tool is and isn’t meant to do. In fact, you probably shouldn’t use it at all.