This is intended to be used with the DDD Wall Control System.
TLDR: Your build plate should be:
Multi tool blades are universal, so this will hold any blades you have, regardless of the brand of blade or tool.
Print with .2mm layer height and supports under the connection pins, as they are floating. I also printed with a brim, as the supports weren't adhering to my build plate that well.
This will also hold your angle grinder blades.

The author remixed this model.
A special centerpiece to hold oscillating multi tool blades