I had an issue when printing where the tabs snapped too easily when printing with ABS. Added structural support to the tabs and doubled their thickness.

Print settings:
Material: ABS
Infill: 100%
Support*: Printing with too strong of a support tree will add too much stress on the frame and snap it when cooling or when removing the supports. I suggest adjusting the support tree to Slim or Organic. Do not use normal support, it will also add stress when cooling.

Optional support interface settings:
Support interface material: HIPS
If using HIPS as support interface, You can add 1 raft layer.
Make sure to avoid interface filament for support base.