Graphite rods are easy to understand. Make a graphite rod into a conductor and a metal rod, and connect the other end to a short metal rod to make a rod. The principle is shown in the picture below is the physical picture I summarized. The bottom one is transferred from others, and the top one is my summary. It can be seen that the metal rod on the left is a rigid metal. I use it for experiments, and the one on the right is a graphite rod. I drew the same coil, and it would be possible to do it in one experimental procedure, however, I replaced the coil with a graphite rod.

It looks a little uncertain, isn't it, I'll take a closer look. I found a material and put it in contact at different points of time, so I got a smooth surface. Pay attention to the lower part, it seems that there is a process of surface to complete the molding process on the picture! Then look at the picture below, I found that the lower part of the picture is the surface summed up on the left, but it is too smooth, so I took a closer look. I found that when the curve is on the surface, the intersection equation is generated on the front and back. Pros and cons: switch direction: I tried to make a conductor rod, and I made this thing into a conductor rod! The one above is just the appearance of matching the conductor rod, and it is used to match together, and has no real practical effect.

By the way, the experimental procedure is to replace the metal rods on both sides with graphite rods! A conductive rod must be connected under the metal rod on the left, because there are free surfaces that need to be connected, and there will be various problems and difficulties. When changing the conductor rod and the rod, first change the side of the graphite rod, that is, to replace the graphite rod on the side of the conductor rod (don’t change the same side many times, it’s easier to put the conductor rod on the axis of the cylinder) A lot of knife-like metal circles of different sizes are born), and then the graphite rod is placed outside, the conductor rod is placed inside, and then folded from the middle, so that the metal rod can be folded along! A lot of fun! Isn't it a bit like the conductor connecting two objects in high school chemistry and physics! ps: It is only necessary to put a graphite rod under the graphite rod. It can be installed on the graphite rod first and replaced (and it is on the same side, along a smooth plane). The production process of graphite rods has been improving, but the The connection method of graphite rods in the future does not have an index requirement. This can only be made by proposing a feasible compound.

Let me know in the comments if you run into issues. And there are different connection methods according to different situations. The following is a comprehensive graphite rod I have seen. Of course, the method of rotating the rod on the curved surface is used. First contact with a smooth plane (so that it can continue to grow, and later form a plane with the stick tire shape) and then add a "stick" on the smooth plane, and put the stick in, while changing the direction and still touching, so that the growth is complete! This one shows sticks touching other metal sticks and graphite sticks: fun! The advantage of this connection method is that the rod can be fixed on any position of a cube or triangle on the curved surface when in use.

And these cubes are screwed up, so it is convenient to press into products. The most important thing is that this process has reliable data and can pass data.