Member postings for Dean Dehghan-Khalaji

Edited By Dean Dehghan-Khalaji on 06/03/2017 08:17:56

Hello,

My name is Dean I'm from Australia. I love machining, more than that I love making things by hands, and I'm on my journey of trying to make watches completely by hand like the late great George Daniels, and his protege Roger W. Smith.

I mostly have a few watchmakers lathe, and Myford ML7, recently acquired Super 7 that needs a lot of work. I'm also patiently waiting for my little Cowells lathe to turn up. The wait is killing me

This board is full of great information. I hope to be able to share some knowledge that I learn too.

Cheers,

Dean DK

Thanks John, for those drawings this has helped me a lot. Thanks Ken for asking the question

Hi Phil,

I use counter sink tools on brass often, and make my own. They are quite simple, and if they could be made simply with a file. But the lathe helps a lot.

I use carbon steel such as Silver Steel.

The process is;

1. Turn down the steel to the appropriate diameter (or file down if not lathe)

2. Produce a taper at the desired angle 45, 60 degree etc.

3. File a flat face around 10mm long almost to centreline (0.1mm above)

4. Polish the face (emery paper or oilstones to be about 0.05mm above centre

5.Harden the steel.

6. Temper the tip to a light straw colour approx. 250 degrees Celcius

7. Polish again and bring the flat surface to dead on centre

8. You can use this tool to counter sink by hand, or in the drill press at slow speeds (I wouldn't go above 250 rpm)

I actually uploaded a video of this recently, and I was lurking this forum for help on another topic. It's just me going through the exact process as I mentioned above. I use a watchmakers lathe, but I have made them on a Myford, and they are lot quicker on a Myford