PLA isn’t particularly strong, especially in small sections under high stress:
I tried solvent-bonding + clamping the break, didn’t expect much, and wasn’t disappointed.
It adds a festive touch when done up in orange PETG:
The attentive reader will note the missing head of the screw anchoring the mount to the left Z rail. Apparently a #32 drill was a bit too small to let the randomly chosen self-tapping screws thread themselves into EMT; they probably anchored a PCB to the plastic case of a long-forgotten lump of consumer electronics.
It should last long enough for something else to let go …