On Sat, 8 Nov 2014 15:23:41 -0600, "Terry Coombs"
wrote:

wrote:
On Sat, 08 Nov 2014 12:28:50 +0800, Shed_Fiddler
wrote:

On 07-Nov-14 10:44 PM, Terry Coombs wrote:
of the tractor and the small containers I've been making .
http://s991.photobucket.com/user/Sna...?sort=3&page=1


Very neat. I wonder how they would come up anodised or that finish
that
is done using polishing paste & a piece of wooden dowel in the drill
press. You mean "engine turned"

The guy who is marketing them is an engraver/jeweler , does some very nice
work . After I read this earlier I looked at Cratex sticks on ebay ..

To help you communicate with the jeweler, machinists call it "engine
turning." Jewelers call it "damaskeening.".

I have some experience with this. You'll probably want to chuck 'way
down on the Cratex sticks, so little is sticking out of the chuck
jaws.

I prefer to glue a round "dot" of leather on the end of a dowel, or a
steel rod for very small sizes, and then keep dipping it in abrasive
as needed. I have several grades of silicon carbide and alox that I
use for this.

In the past, I used to stick dots of wet/dry sandpaper to the end of
the dowel. But they wear out fast. To cut the dots, I have an
extensive set of hole punches. If you don't have them, making dots is
a PITA.

Happy engine turning.

--
Ed Huntress