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My EERF DIY grinder build 
I hope this article helps helps encourage you to build this grinder. The photos below will show the steps in how I built this grinder along with the blueprints necessary to create the grinder. You will need to make all the parts shown in the blueprints below in 1/2 material whether it is steel or Aluminum does not matter. The following numbers are given so that you know how many of each part is required to make one grinder. Baseplate-1ea Part 1-1ea Part 2-1ea Part 3-2ea Part4-3ea Part5-1ea Part7-1ea Part8-2ea Part9-1ea
One last note, I had parts 4 and 8 made in 1/16 aluminum to shim the tooling arm box open slightly more than 1.5 inches. If you decide not to get the 1/16 shims made just put thin washers beteen the spacers when assembling the tooling arm box to help get the box open more than 1.5 inches.