The manual is still using r1 stl filenames, see this image 
- All of them have the wrong suffix (r1 vs r8)
Tap_Magent_(Left|Right)_r1.stl
are now called Tap_Center_(left|right)_r8.stl
[a]Tap_Center_r1.stl
is now [a]_Tap_Center_r8.stl
(extra _ before Tap
)