Topic: I try again to build an optimized nozzle
Hi guys,
Since I have had very good experiences with airbrush nozzles, as well as once with stepped holes in nozzles, I will try this time a nozzle with a long cone, which should be as polished as inside.
This is best achieved with a canon drill. Unfortunately, these are, in the sizes required for this, almost unbeatable, if one finds one at all. So I make myself a silver-steel, which I will then also harden.
Let's see if I succeed.
I began with a 2.5mm silver steel to slightly more than the length of a nozzle corresponds to 1.95mm Turning off, which was still quite easy.
I got the cone by rubbing it carefully with a blue rubber polishing disc and a Proxxon Minnimot under a magnifying glass. It was my intention to make this cone slightly arched, which makes the drill much more stable. Since you have to be careful with such small parts, the tip does not have to overheat so it takes its time. After half an hour of work, it looked like this. An old nozzle for comparison behind it.
I hope the cannon drill for nozzle sizes to get below 0.2mm usable. The tip now has a diameter <0.1mm.
Next I did not come today, but maybe tomorrow. Then the really difficult part begins. Then I have to sharpen the cone right down to the middle. Hardening and sharpening. A nice finger-play, according to my taste.
Greeting Edwin