Cutting a cog…

by Stephen Hobley on December 28, 2009

My first cog!

I finally got some good carbide end mill bits for my gantry router – seriously don’t wast your time with the Dremel cutting bits, they just heat up and burn the material you are cutting. I bought some 1/8″ 2 flute spiral end mills. The cutting is really clean now – and no scorching.

This is a 60 tooth gear for the clock I’m building. I always told myself that the first thing I would build if I got a CNC router would be a clock….

I down, about 20 to go…

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{ 2 comments… read them below or add one }

EK May 11, 2011 at 8:15 pm

What is the size of this cog to put it in perspective.

Stephen Hobley May 11, 2011 at 9:47 pm

About 6″ diameter.

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