I removed a frame-insert bracket from the x-axis pulley that would fit fine into aluminium frame of an Lerdge IX v2, but not into the frame of a Lerdge IX v3.
So basically this is the Lerdge IX v3 version of the x-axis pulley from @JohnnyFly_420608
The author remixed this model.
I removed a frame-insert bracket from the side of the object that would fit fine into aluminium frame of an Lerdge IX v2, but not into the frames of Lerdge IX v3