Vyper Extruder Grub Screws Issue
A common issue that many people have with the Vyper (and its common to many BMG clones) is the grub screws coming loose. Its a very simple and quick fix or preventive routine..
If you are hit with this problem, you may find the vyper making clicking noises or grating noises when retracting and feeding filament, holes and gaps in layers, and eventually total loss of filament extrusion.
Check it out and prevent it from the get go is my advice ;)