Servo Driven 4th Axis for CNC Mill

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awemawson:
As the retainer is recessed the Facom was not really getting where it was needed. So then I realised I'd have to make something to fit - I made a pin wrench out of a bar end and counter bored it 3/8 for a tommy bar I had lying arround

awemawson:
You guessed it - the tommy bar ended up like a banana :bang:

Time to get serious - if only that pin wrench I'd made could go on my air impact wrench. Well it can if you cut a 1/2" square in the end. Lucky I fixed that EDM machine :ddb:

So let's make an electrode:

Brass_Machine:

--- Quote from: awemawson on January 08, 2014, 02:52:04 PM ---You guessed it - the tommy bar ended up like a banana :bang:

...

--- End quote ---

Ouch!

awemawson:
You'll notice that the lump of copper I used had had an odd multi-pointed star shape in the other end, and a little broke through - never mind it won't affect anything

So here is the result:

awemawson:
Now I don't like using masses of force to dismantle things - things tend to break :lol:

So I set my air impact wrench to it's lowest setting and had at it. Nothing, no movement. Well I went through the four power levels, and at last on the highest setting off it screwed - relief :ddb:

Now I could see what was inside, and here it is:

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