the assembly sequence
B. Use two square hole templates lock the upper two of four corner angle
shaft parallels( figure 1), and then install two big cylindrical gears
(figure1)
C. Remove the two square hole templates.
D. Use one square and a triangle template to lock the left (or right) upper
four corner angle shaft and lower triangular shaft (figure 2) under the ridge
axis, and then install the small cylindrical gear.
(figure 2)
E. The installation method of the other side of the small cylindrical gear is
the same as D.
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