Four M4-20~25mm screws are required.
Grip adapter should be modified for your own magnifying glass.
Still needs to improve the design:
- Screw tip should be larger to secure the base stable.
- Knobs should be larger for the easy operation.
(It's too tight to secure by hand.) - Hex bolts are better than hex hole screws I used.
It is desirable to add hex-hole-shapes to the arms to stop the rotation of the screws.
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