Pivot Gauges with Straight and Conical Pivots

The second of our two micro mechanics exams was to produce a pivot gauge. We once again had a time limit of 8 hours to complete it, turned between centres using a hand lathe. The task would be a lot harder than the winding stems because this time we would be using blued steel, which […]


Winding Stem Exam Practices

Over the course of the next month or so, we continued to practice making winding stems, to make sure we were competent at each of the processes required to produce a stem. With both micro mechanics exams only 4 weeks apart, we also began preparing for the second exam in which we were required to […]


Brass Staking Block

Just before beginning work on the winding stems we had another project that presented us with the opportunity to use the Schaublin lathes again. Our task this time was to make a brass staking block. This would become an important tool, enabling us to measure the length and diameters of our winding stems, and subsequent […]


Winding Stem for an ETA 6497

We were now given the chance to start making complete winding stems from start to finish in preparation for our first micro mechanics exam. For the exam would we would be given 8 hours to make a winding stem from scratch to match the technical drawing provided by WOSTEP in Switzerland. We had a choice […]