How bad is inter-layer failure with ABS?

[Wade3]

Hi.

I am thinking of moving to ABS, but I want to get something cleared up first.

I have read that the weak part of ABS parts is between layers. So ABS is stronger, but are the layer bonds weaker than PLA, so is it actually weaker in certain ways?

A PLA part that I just had fail was a 3/16 (5mm) diameter post protruding from a base, onto which a snug rotating arm is fixed. I'm not sure if it was from a torsion or straight shearing force, but it seems to have been a layer failure. Does ABS decrease this?

I realize that ABS has better material properties, but that doesn't help me if the layer bonds are weaker, and I am looking for a straight answer to this. Thank you!!

(By the way, in case anyone is wondering, I made the rotating part snug by making a bushing out of semiflex. It's going to be a toy with stiff movable parts. Also, there was a chamfer at the bottom of the post. It broke just above it.)