[best settings for snap fit pieces]

Wow, get some advice, redesign, reprint. This is fun. thanks

[best settings for snap fit pieces]

My design is flawed in that the tabs are hollow and pretty easy to break off. I know it is stronger to print in the other direction but I would still like to get this to work. I learned fusion 360 a little and took the .stl files to the library so I had no control of the slicer. But now I just got and printer and cura so hopefully I can change settings to make this strong enough. Any ideas on what to change? The broken tab is on the upper left of the pic.