It's not easy. First of all, you should consider the motor speed and install the motor output shaft with the minimum gear. (sprocket) If the pinion is 14 teeth. Then the ratio at the other end should be as large as possible, 14 X 3 to 4 times the gear, so that the speed will be low and 90% will be done. In use, 4 to 5 tubes are as long as stainless steel tubes, for example, 500 mm Connected by the same gear. Parallel. It's done. Oh, it needs welding. Steel, stainless steel shell. After completion, the cost will be much cheaper. For example, if a new product sells for 2000 yuan, it will be around 500 yuan if you make it.

Oh, and ... you'd better use a micro-deceleration motor, one in 30 yuan, with a voltage of 12V DC. You can connect a battery or install an electronic transformer. 220V is changed to 12V, so it can also be used in both directions, plugged in and out of power. And this round doesn't need to slow down, which is easier to handle. Chengdu Jinniu Market is available for sale. Let's do it this way. It took less than 300 minutes to put the transmission and the frame together, which was very fast. As mentioned above, it takes a lot of time, expensive and troublesome to process gears. If you don't understand, you can QQ 844524990.