I originally downloaded and printed Luke's 3D version of this, but couldn't get my toothpaste tube to fit into the slot so I widened it. Then I discovered Lloyd Keays version that has the screw on end instead of the pinch end.
So I combined the two, shortened the shaft, widened the slots and voila! This version now exists.
I'm inexperienced at 3D modeling so this uses built in functions of Orca Slicer such as negative parts and cutting to accomplish what I needed.
The author remixed this model.
Original parts are from Luke's 3D version, then widened the slots for toothpaste tube and replaced the central shaft with Lloyd Keays version of it.