Z Probe removable module - for manual leveling E3D

thingiverse

I dislike the necessity of recalibrating the level every time before printing. Usually, a glass bed is very stable after one calibration session. However, auto-correction takes controllers' CPU time to correct Z values and subsequently decreases printing quality and speed. My goal is to achieve perfect calibration once, using the glass bed, to fix it and check its leveling over some time. This module allows you to make level calibration as accurate as possible by utilizing the Bed height map option of Repetier-host. To set this up, mount a micro switch, without a lever, onto this module, attach it to the hotend when desired for calibration purposes, connect the switch to the Zmin connection, and modify the firmware to enable the Z probe. I am using Repetier-firmware with RAMPS1.4 and the Z probe is on pin 18. Manual calibration can be achieved by modifying Tower X, Y, Z endstop offset values in EPROM. By tweaking these values slightly and re-testing the Bed height map after each adjustment, you can narrow down the difference between the lowest and highest values. Only adjust two of them; do not modify all three offsets. Once the difference is about 0.1-0.2 between the lowest and top values, consider the leveling done. To confirm level calibration, I use a large test print such as the one located here: http://www.thingiverse.com/thing:702690 WARNING: Never power on the hotend while the module remains attached. This module is specifically optimized for the E3Dv6 hotend, which is 6mm below the hotend nozzle. For users preferring auto-configuration, visit my YouTube video and explore the OpenDACT forum topic at http://forum.seemecnc.com/viewtopic.php?f=36&t=8698 and view the relevant videos at https://www.youtube.com/watch?v=8Xt3Te73Xdo and https://www.youtube.com/watch?v=cQ1uTnZpUzM