Tuesday, February 14, 2012

Coffee Burr Grinder Attachment for KitchenAid Mixer


I just recently started to enjoy a cup of coffee in the morning.  I had a "helicopter blade" coffee grinder for years and decided to upgrade to a cheap hand-crank burr grinder (Kyocera CM50 - $39 on Amazon).  This grinder has conical ceramic burrs that produce a MUCH more consistent grind for drip coffee than my previous grinder.  I was astounded that I could actually taste the difference - much smoother once I found the right grind setting!

I then started looking into motorized burr grinders.  Most high quality grinders were $500+.  The cheapest conical burr grinder I could find was the Bodum which was $80.  Not bad, but I thought, why don't I make a burr grinder attachment for the KitchenAid mixer that's taking up a ton of my counterspace?

When coming up with the design, I held myself to these rules:
 1. Priced below the $80 Bodum
 2. Meet or exceed the grind quality of the Kyocera CM-50
 3. Able to be made with tools a "tinkerer" might have - no fancy CNC milling machined parts

NOTE: I designed this for my Kitchen Aid 600 mixer I have a design in mind that would work for all other square-drive Kitchen Aid mixers and will post shortly.

Essential Parts:
 1. Kyocera CM-50 ceramic burr coffee grinder ($39)
 2. Milescraft 90 degree drill adapter ($15)
 3. 3/8" x 1.25" long coupling nut ($0.99)

Parts/Materials that Can be Substituted:
 4. 3/4" x 1/8" thick aluminum bar
 5. 3/4" pine board
 6. #12 x 3" long wood screw
 7. #10 x 1" long wood screws
 8. 1/2" x 1/4" long copper tube

Tools:
 - Hand drill
 - Jig saw
 - 3/8-16 die (cutting screw threads)
 - Bench grinder 

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