Legos compatible building brick 4210779

This is a compatible model with the 4210779 building brick, aka Slope/Curved 6x1 Inverted. 

It is printable without supports if your bridging is good enough to overlap around 7mm of bridge at most

I left 0.1mm margin of error on every side to make the piece alignment better

I printed this particular piece upside down, to make the slope smoother, since with support or bridging it was ugly