Ender-3 Z axis calibrator

thingiverse

This is a simple tool to calibrate z-axis. It is composed by two identical objects (you have to print the object two times) that replace the original z axis micro-switch holder. If you discover that your plate is calibrate but it is too near or far to the nozzle you can move all plate wheels but you risk the lose the calibration, a different solution is to move the z-axis switch. You can measure the z-error moving the nozzle by display menu, when you find the right height you can move the switch exactly to the right height. If the error is little (0.1 .. 0.5 mm) you can use a (folded) sheet (0.1 mm) end put it between the two new blocks. Eg1: if you have to move the nozzle upwards, you have: 1) to loosen the screw of the top piece; 2) to move the top piece upwards; 3) to put the (folded) sheet between the two pieces; 4) to move the top piece downward so that the paper is slightly flattened between top and bottom pieces; 5) to tighten the (top piece) screw; 6) to loosen the screw of the bottom piece; 7) to remove the paper; 8) to move the bottom piece upwards tight to the top piece. 9) to tighten the (bottom piece) screw; Eg2: if you have to move the nozzle downwards, you have: 1) to loosen the screw of the bottom piece; 2) to move the bottom piece downwards; 3) to put the (folded) sheet between the two pieces; 4) to move the bottom piece upward so that the paper is slightly flattened between top and bottom pieces; 5) to tighten the (bottom piece) screw; 6) to loosen the screw of the top piece; 7) to remove the paper; 8) to move the top piece downwards tight to the bottom piece. 9) to tighten the (top piece) screw;