Starting position calibration compensation method of three-dimensional printer

Abstract

The invention discloses a starting position calibration compensation method of a three-dimensional printer. The three-dimensional printer provides a sensing switch for sensing a moving position of a moving mechanism driven by a motor, and the sensing switch provides a control voltage corresponding to the moving position to a microcontroller. The method comprises the following step that the movingmechanism moves in the initial position direction; whether the microcontroller receives a first logic level signal corresponding to the control voltage conversion state or not is judged; if the microcontroller receives a first logic level signal corresponding to the control voltage rotation state, the moving mechanism moves in the opposite direction of the starting position direction; whether themicrocontroller receives a second logic level signal corresponding to the control voltage conversion state or not is judged; and if the microcontroller receives a second logic level signal corresponding to the control voltage rotation state, the moving mechanism moves along the initial position to correspond to a compensation distance of a step number compensation amount. Therefore, the circuit cost can be reduced, the design of a control circuit can be simplified, and more accurate initial position calibration can be achieved.

Description

technical field [0001] The invention relates to a calibration compensation method, in particular to a calibration compensation method for an initial position of a three-dimensional printer. Background technique [0002] After the 3D printer is powered on and before 3D printing and molding, it usually executes the action of three-axis home (auto Home), so that the three-axis of the 3D printer returns to the initial position (Home position, or origin position). After the three axes are reset to zero, the starting position provides the relative reference (datum) position of the coordinate information in the G-code generated by the slice analysis of the 3D model. In other words, after the home position is determined, the three-axis movement of the three-dimensional printer during the printing operation will take the home position as a reference, and move to the position specified by the G-code to perform the job. Therefore, the accuracy of the home position of any one of the th...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for calibration and compensation of the initial position of a three-dimensional printer, which solves the problem of adding a Schmitt trigger circuit or a comparison circuit, which will result in increased circuit cost, complicated control circuit design, and relatively large requirements for installing a detection circuit. Space and other issues

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