Knife I designed myself, picture is of the cut in half version, the cut in half version is much thicker than the one piece version (knifeboi.stl). The knife in the picture is scaled up 230%, which was as large as my printer would allow with my bed. The two sides make it much sturdier and a little easier to grab as well, so I recommend thickening the one part knife to about 22mm if you upsize it.

Creality

Ender 3 Pro

Yes

Yes

0.12

30%

Printed at 195 C on the hotend and 65 C on the bed.