I tried printing a classic frisbee, but I found out, that the standard edges won't be strong and flexible enough (the layer adhesion is too weak when flexed), so I've adjusted them, so that the frisbee is as flexible as possible without losing strength. I've tested it outside and it flies much better than I expected and it withstood quite some torture, before it cracked (of course, it will never be as strong as inj. molded frisbee).

The slicer settings I've used:

• Perimeters: 5
• Infill density 100%, first 3 layers default infill, then 2 layers concentric, the rest default
• Random seam positioning - no single weak spot

The rest was kept default

I used petg, as it's perfect for this, idk about pla, but anything stronger should be perfect.

This made from TPU/TPE/FLEX should be basically indestructible, I will try that asap. → UPDATE: I bought TPE from Gembird and tried printing it and failed miserably… Not entirely my fault though, the filament diameter was oscillating between 1.5 and 1.9mm 🙃. However, it seems that it would have been too flexy (I have printed only first 7 layers though), so if you decide to go flexy, choose the hardest you can. Alternatively, you could try adding some sort of rigid insert into the main body (for MMU printers - print infill with PLA/PETG).

glhf ;-)