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Figure 6.2 shows the lift mechanism. The most difficult part is not just cutting the perfect holes for screws, but also carefully consider the spacing between joints and layers to avoid interference.
Figure 6.3 - joints
To fix prevent the problem that the shafts may pop shafts from sliding out, we used glue gun to glue the shaft with the bearings.
Figure 6.4 - base
We use used multiple acrylic rings as sleeve for spacing and to prevent the links from sliding along the shafts.
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