21.Drilling hexagon holes 1a The Lullo pentagon rotates within a hexagon. The trajectories of the pentagon at different points are shown. The red track is
11.Making sphere on a milling machine 1 The workpiece is clamped on the chuck of the indexing head and rotated by hand. The tool is
1.Device for Correcting Grinding Wheel The combination of the two parallelograms allows the tool point to draw a circular curve. The yellow joint rotates around
A screwdriver is an indispensable tool in life. There is a need for it no matter in the home, office, or going out environment. Is
Hand protector for cutting vegetables The hand protector that has stainless steel does protection, cut casually all not afraid! It will get thinner with practice.
This zipper charging cable has a standard USB interface on one end, and an Apple data interface or Miscro USB interface on the other end.
The first MortarThe brick wall needs a beautiful seam, but this beautiful seam is really inconvenient because there is no professional guy. Someone invented a
There are undoubtedly many objects to decorate our lives in our home life, and the vase is such an inconspicuous and indispensable tool for daily
The animal image of the cow has always been a hardworking and reliable representative in the eyes of the public. It is also one of
Living in a reinforced concrete city, I am more yearning for nature. A little greenery in the city is even more precious. Apart from the