Hi,
I have one of the original Kickstarter Hexy’s, which for various reasons sat partially assembled for a few years before recently being revived.
However, once assembled I noticed that his hip joints were quite badly misaligned - the servos on some joints weren’t vertically aligned. Pulling Hexy apart and stacking the “horn” and “pivot” pieces of the body confirmed that the pivots don’t line up.
Attached is a comparison of the Horn’s DXF vs a scan of the actual piece. I’ve scaled the scan so that the holes near the centre of the body on the right hand side line up. You’ll notice that most of the right side is pretty close, but the left side is miles out.