Todays Project - What did you do today?

[stevec]

(04-12-2013, 05:45 AM)Brian Wrote: Hi Steve
Yes you have to stop the mill every time you need to increase the diameter of the cut. in this case I was taking small cuts due to the cut being intermitant ,and the out of balance of the head.

Brian.

The reason I ask is because I no longer have access to the lovely Narex boring I had at work (it had a facing feature!) .
I had to devise my own for a cylinder head machining story I'll explain later to anyone interested.
Long and short is, I built the following device to advance the tool with every revolution.     I cut a new feed screw (7/16-20) and fitted a # 25. sprocket.


It worked great! I was able to bore the head to compensate for the "overstroke" I had given the crank.
    Then I built a bracket to clamp on the quill of my Tree mill.
   
On the bracket I added a "tooth" that would advance the sprocket one tooth. I made it so as I could lift it out of the pathof the sprocket and therefore not advance the tool.

Sorry for the jumbled pics and text. My head hurts and I'm now soothing it with another homemade brew.