This is a support for a simple dial gauge.
Drawed for fit on my "air fan duct MOD" designed for Creality Ender 3 but ok also for CR-10 / CR-10 mini
Buy Gauge Dial to bangood !! >> https://goo.gl/UAF5pt
You can find "air fan duct MOD" here
Download a gcode and put it on sd...
wait for the bed to reach 60 degrees on the display then press the button
use a piece of paper to calibrate the height of the layer in the first point
now press the button to start the calibration
on the first point, set 0
- on the other points, turn the wheel under the bed to reach 0