You really want a new extruder visualizer?
Here! Look no more!
This is THE Extruder Visualizer, since it replicate the Bondtech gears and its actual movements (sort of).
Click here to see it in action!
This visualizer is more oriented to Original Prusa i3, but it should fit any Nema17 stepper.
Print instructions:
Just print it as it is.
The only trick I recommend is to set the extruder width to 0.4mm (default is 0.45), this is just to ease the inner wall printing.
I printed mine in PETG and PLA and they seems to work both just fine.
There are two version: the main one is for the stock extruder.
But if you got some extruder mod like the Delta-P fan duct V2-R2 or similar, you'll need the MOD version.
Assembly instructions (it's longer to read than to actually do it):
Enjoy the exact visualization of the actual extruder movement!
The gears original model can be found here
Edit 13/05/22: Added .f3d and .step file
The author hasn't provided the model origin yet.