/diy/ - Do It Yourself

Whelp /sqt/, this has me fucked. I snatched up a pair of legs from a rotted out work horse on a curbside and bolted them to a chunk of timber left over from another project, but the thing is not sitting straight as visible on the front right leg in pic related. I have checked;

> all legs are the same length
> legs on left same distance apart as legs on right (blue lines)
> diagonal lengths are the same (red lines)
> legs assemblies are square to the timber (green lines)

Doesn't matter if it's on the bench, the floor, or on grass outside, the thing wobbles like a motherfucker. What the fuck?