I print the top piece at a 60 degree angle. You can also use "Place on Face" and the at spot at the back.
I manually paint supports mainly, but I'm sure you can use the auto-generated ones.
Your settings may vary
Your settings may vary but I have provided the settings I've sliced this at on my printer.
ZS-X1, 3D Printed Endgame Gear XM1 Mini Guide: Page 5