Head locking up at the back of the y axis

I’ve finished the build of the vertex two days ago, but ran into the problem where the head seems to get jammed, with the motors making that loud humming noise and it moving very slowly.
I’ve read about the bad axis alignment and tried the trick with the hammer, but still no effect. However, i noticed that at the far right side the housing doesn’t seem to be 100% right, could this have something to do with it?

Cheers

problem solved :slight_smile:
Solution: bigger hammer :smiley:

Nachte is right…the solution is a bigger hammer. I wasted hours looking for an alternative, and in the end this was the advice that solved axis alignment.