Selecting the right stepper motor - Torque test of Nema17 and geared Nema17 

In this episode we talk about how to convert the torque specifications in Newtonmeter to something more graspable, like kg/m, or lb/inch. We look at the datasheet of a Nema17, and field-test our conversion with different weights. A 27:1 metal-geared Nema17 will also be put to the test, lifting 2.5kg.
Schematics, code and graphics can be found here: github.com/Lab...
I am quite new to producing videos, so I am super thankful for tips, comments and suggestions on how to improve!
(P.S.: I noticed the irritating focus-behavior too late, next time I will set it to manual focus)
-- My patreon page
/ labstream
--- Hardware used
Arduino Nano
BL-TB6600-V1.2
Sainsmart Joystick
KERT stabilized power supply (1-30V, 4A)
Nema17 stepper motor, plus it's 27:1 geared version
--- Music
Intro: "Five Armies" - Kevin MacLeod (incompetech.com), Licensed under Creative Commons: By Attribution 3.0 License, creativecommons...
Outro: "Learn to fly (instrumental)" - Josh Woodward, Licensed under Creative Commons 4.0 Attribution License, creativecommon...