MPMD Arm Measurement Tool and Tutorial

THIS TUTORIAL WAS MADE FOR THE MPMD V1! I DO NOT KNOW IF IT WILL WORK ON THE MUCH NEWER MPMD V2!

The purpose of this tutorial is to make sure all delta arm lengths are the same on the Monoprice Mini Delta 3D Printer.

Relevant Links:
1. YouTube Tutorial for this part: https://youtu.be/GYoeg-HAw0I
2. The tool and tutorial is based on Dennis's post here: https://www.facebook.com/groups/mpminideltaowners/permalink/2370343116314494/
3. Full Calibration Guide: https://www.reddit.com/r/mpminidelta/comments/bzm1s2/updated_mpmd_calibration_guide_and_faq/

In Dennis's original tutorial, he just removed the heads from ~3mm nails and glued them to pieces of angled aluminum. I made a 3D printable version because I don't have angled aluminum laying around nor the tools to easily cut metal.

The embedded caliper tool should fit a Neiko Digital Caliper (0-150mm).
I also included some generic brackets which you could attach to any calipers using binder clips.
You will need M3 screws,