【Training Camp】One-legged little bell

Use the hi3861 IoT wifi module to analyze the steering gear control through the inverse kinematics solution, use Solidworks to model and print out the structure, and make a small clock that can control the marker pen to write time. When welding, because the servo needs 5V power supply, we need to design a 5V voltage stabilizing circuit. The 5V linear regulator I chose is still difficult to solder. The solder pads are all underneath. You need to use a hot air blower to add solder paste, or use Teppanyaki heating and welding. In order to save money, I chose acrylic board to print the model, but acrylic board is relatively hard and brittle. When printing, the screw holes should not be too small, otherwise it will be difficult to install. Or use 502 glue for installation. Other glues solidify slowly and are difficult to assemble. When installing the motor, do not break the motor after powering on, otherwise it will easily burn. I once forgot to plug it in and wondered why the motor wouldn't come off, thinking it was stuck with glue. Ha ha.

I just made it, but accidentally broke the place where the pen is held. I can't demonstrate it with the pen now, so I'll upload a video without the pen, haha.