Maybe it’s just me but…
The y-axis drag chain end that installs on the X-axis gantry does not sit properly on the gantry because of the raised lip on the gantry. If you tighten the bolts too much, you’ll deform the drag chain end and potentially break it.
I installed a couple of washers under mine but maybe Sienci should provide a shim of some kind…assuming this is even a problem. Bolts may need to be a bit longer too.
Only reason I noticed is because the two sides of the drag chain end where seriously bent inward. This was caused by overtightening the screws.