Preparation method of coaxial probe and 3D printing equipment

The invention provides a preparation method of a coaxial probe, and the method comprises the steps: S1, obtaining the structural parameters of a target probe, the structural parameters of the target probe comprising the closing-in type of the target probe; s2, configuring a printing nozzle and ink materials corresponding to each layer according to the structure parameters of the target probe, and after configuration is completed, starting to print the target probe by the printing nozzle until the printing nozzle of each layer reaches a first preset height; s3, whether the closing type of the target probe belongs to a first preset type or not is judged, if yes, the printing nozzles of all the layers stop ink discharging at the same time and then continue to be lifted, the printing ink material is lifted to a second preset height, printing of the target probe is completed, and if not, the step S4 is executed; and S4, the printing nozzles of all the layers stop discharging ink layer by layer from inside to outsi