When descending dark stairs, to ensure guests do not jostle against each other in the corridors, I will lead them safely to the hall keeping proper distance! (N4 lesson 42)
Yeah, the shock of high-speed rotation is beyond imagination. Inspect the bolt threading and retighten every frame. Preventing accidents before they occur is the iron rule of the shop floor. (N3 lesson 25)
Yes! I mortised the intersection of vertical and horizontal brass rules along the cross grooves without gaps. Placement of numerical units is flawless too. (N3 lesson 75)
Tune the mesh of the cogwheels controlling the blade stroke. As rotational speed rises to high velocity, even a fractional-millimeter error makes it hard to slice through the web clean. (N3 lesson 98)
Don't thrust your bare hands in flustered. From frictional heat of paper rubbing at high speed, there is danger of fire igniting in accumulated paper dust. Scrape it out swiftly using the wooden paddle. (N3 lesson 124)
Good lad. Bearings where metal rubs vigorously against metal heat with friction every time they rotate. If lubrication breaks, the shaft overheats and seizes. (N3 lesson 102)