My new project ...Diesel engine .

[Minh Thanh]

I haven't had time to follow this thread so I'm not at all sure what I'm looking at... but I do know it looks fantastic!

Thank you !
 
 Hi All !
 I don't know if this helps, but this is how I machine the needle shaft.
 The old live center wasn't very stable, so I made a new one.

Another method is that after machining a section, I open the clamp on the rotating center support and move it in - clamp it again, and then open the clamp on the chuck and pull the workpiece out a bit - clamp it again - and continue machining.
 Hopefully this gives you some ideas.

[Roger B]

Hi Minh,

Are you using TIG welding rods for your needles?

[Minh Thanh]

Hi Minh,

Are you using TIG welding rods for your needles?

Hi Roger !
I've been a little busy, and I often have trouble accessing the forum, so I'm replying to you a bit slowly. Sorry !

Yes, I used stainless steel TIG welding rods to make the needles. (I usually use what is readily available around me.)

I want to know: "Why..." so I made a few needles with a diameter of 0.5 mm for testing, but they were mostly useless - there was a way to make it spray better, but it started to alter the texture of the whole size I wanted, so I went back to the familiar size and with few adjustments, the results were good.

  <a href="https://www.youtube.com/watch?v=6ph2MciY5WE" target="_blank">http://www.youtube.com/watch?v=6ph2MciY5WE</a>