This boomerang cannot quite decide whether it is a lambda or an asymmetric triblader, hence the name.

I sized the model so it would fit on a 180x180 printer like the Prusa Mini or the Kingroon KP3S. Just rescale it to fit your printer if you have a larger one.

The small boomerang was printed at the original size on a KP3S. The large one is at 140% scale and was printed on a 300x300 printer.