This is an old version use this updated version that works with all hotend mounts instead
https://www.printables.com/model/1141394-e34m1-filament-cutter
For the lever spring you will need a 5x20mm spring, a smaller spring can be used but the I.D. must not be below 3 as it goes around a m3 screw to keep it in place.
https://www.amazon.com/gp/product/B09C1DDHRV/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
For the cutter you will need a #4 hobby cutting blade cut to 28mm mounted with a 3mm hex screw
https://www.amazon.com/gp/product/B07QP8L1QG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
It's recommended to use the LW actuator arm that mounts directly to the X gantry. You will need slightly longer m3x35 screws to secure it down as it replaces the 3 screws that is used to hold the X gantry together
Revision 1: found that screw inserts on actuator arm LW are slightly too long. Reduced the length by 1.5mm
The author remixed this model.
Remade the front and belt holder to work with the Zero G Mercury movement system.