Maker Select calibration tool

Calibration tool for monoprice maker select.
Attaches to bearing from back with
2 m4 x 25 mm screws.
Add a dial indicator and it will help with leveling z axis and bed.
m3 x 12 screw and nut to tighten dial indicator into place

To level z axis.
1. Lower bed completely in all 4 corners.
2. Home z axis
3. Measure height closest to z limit switch(home position.
4. Move carriage to opposite side compare measurement to home position.
5. Adjust lead screw to make values equal.
6. Move carriage back to home position
7. Recheck value (this will change when adjusting opposite side)
8. Readjust as in steps 4-8 until values are equal even after adjustment.
My results are consistently within .001
I use octoprint to move carriage back and forth.
Without I would grab the belt to move the carriage.

See link for more info

http://imgur.com/a/Qm6pf