Coffee Grinds!

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U-Turn

Member
Joined
Oct 21, 2010
Messages
235
Location
Smyrna, Georgia
I tried my first Coffee Bean Blank and it was a disaster - very sharp tools and very careful turning However, got about 80% done and it exploded. I am pretty good at repairning blanks but no way on this one. Anyone have any suggestions (dont tell me not to turn on Friday the 13th:)).
 
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LanceD

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Joined
Oct 3, 2005
Messages
1,590
Location
Houma, La, USA.
You'd probably get more replies if you'd post your question in the Penturning category instead of Marketing and Shows.
 

DurocShark

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Joined
Jul 26, 2008
Messages
3,622
Location
Anaheim, CA
Coffee bean blanks are one of the places I use Gorilla glue instead of epoxy. The expanding glue seems to help protect me from myself.
 

workinforwood

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Joined
Mar 1, 2007
Messages
8,173
Location
Eaton Rapids, Michigan, USA.
Those are always a challenge. That's why I use coffee grounds in my coffee blanks instead of the beans. Makes for a much easier blank to spin and the effect can be equal since it includes a real coffee cup with real coffee in it, so nobody questions what it is!
 

Dave Turner

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Joined
Jul 23, 2010
Messages
417
Location
Sylvania, Ohio
I used a carbide tipped tool (EasyRougher) with a light touch and only had minimal chipout on a few beans that I could easily repair with CA and coffee grounds. I did coat the blank with thin CA when I was getting close to my final size.
 

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MartinPens

Member
Joined
Apr 3, 2010
Messages
1,813
Location
Medford, Oregon, USA
I turn them thick, apply thin CA, then use sandpaper to get it down to bushing dimensions. If the CA doesn't penetrate - then sand it down some and then put more thin CA on.

Also, in the beginning, after drilling the hole - soak the inside with thin CA. After drying use a piece of sandpaper in the drilled out hole to get rid of any CA that might prevent the tube from inserting. A combo of this should do you right. My next one will first be stabilized. Some blanks are cast and then stabilized by certain sellers, but I don't remember who.

Good luck

Martin

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