(1) First encounter with ingenuity (opening - 200,000 words)
The bell rang for evening self-study, and Lin Xiaoman walked into the classroom, tired from being unable to solve the programming problem, only to see Master Lu standing on the usually three-foot-high podium, wearing work clothes and carrying a tool bag. Master Lu did not teach formulas, but directly brought scrapped precision parts and asked the students to find "faults" - touch them with their hands and measure them with calipers, teaching them how to feel the impact of "0.01 Mm error" on industrial products. For the first time, Lin Xiaoman learned that a fitter's "hand" can be sharper than an instrument. Those cold tolerance values in books, in Master Lu's story, turned into lessons for projects that were scrapped and reworked due to "slight differences".
At the same time, there are also doubts on campus: What if these "practical shows" during evening self-study will delay theoretical study? Teacher Chen withstood the pressure and led the students to do a "theory + craftsman experience" comparative experiment. Under the guidance of Master Lu, Lin Xiaoman used benchwork techniques to assist CNC programming, and actually solved the error problem during program simulation, allowing everyone to see the potential of the "late self-study mode".
(2) Quenching into steel (200,000-600,000 words)
With the deepening of cooperation, evening self-study has become a "skills testing ground". Master Lu brought a real order from the factory - processing special accessories for high-end equipment, and the students worked in groups to tackle the problem. Lin Xiaoman's group was at an impasse when designing the fixtures. Master Lu did not give a direct answer. Instead, he took them to the school's practical training workshop, dug out old fixtures from decades ago, and talked about how they "make up for their clumsiness with cleverness" under simple conditions. Inspired Lin
