Layer Failure

[sonnichs]

While I am not very experienced, this is a first for me--I printed the construct shown and the smaller "screw" broke radially (perpendicular to the axis).

The walls are 1.2mm and I am using a 0.2mm layer---thus 6 layers for the print. THEN--I thread the assembly at 10-32 (US). No surprise that it broke. I have some recourse here and am not worried (yet) but this brings to mind-

>>Is there a recommended number of layer-thickness-to-layer-number past which structural integrity becomes and issue?

RegardsFritz