Workpiece dimensions do not match

Does the workpiece dimension not match the dimensions on the drawing? This can have two causes. If it has the same deviation in both length and width, then read cause 1.

If it deviates only in length or only in width, then read cause 2.

 

Cause 1. Notch width not set correctly. Setting the notch width determines how far the torch stays from the drawn contours. If you enter a smaller notch width number, the torch will come closer to the contour line and the workpiece will become smaller. If you enter a larger number, the workpiece will also become larger. You set the notch width in the CAM program, usually during tool selection. You can determine the notch width by measuring the cutting width.   

 

Cause 2. One of the axes must be calibrated. If only the length or only the width deviates from the workpiece, it may be necessary to calibrate an axis. Read on the page "Machine calibration" how to do this.

Another mechanical cause could be that the motor's drive gear has come loose on the shaft.