Bottom line, In my opinion none of you guys are polishing in any way I personally would think is wrong. All of you have more knowledge and experience than I do about it when applied to airbrush needles.
I'm working on a super cheap accessible way to do it at home and use it on these needles , only because it would actually be the easiest possible way to polish a needle without changing the geometry or using any skill.
@ 83 euro there is good reason to be careful, I have not paid that for an airbrush Yet
You're right! I have all the needles just as I prefer.
Sometimes needles should be either longer or shorter compared to stock ones. For microns, Iwata's should be a bit longer out off the nozzle and Olympos is shorter and with changed taper. It's even better not to use Olympos needles, they're too soft. Literally a touch of the surface and you'll have another needle repair
Usually, I do the tapers a bit longer for the reason of achieving more precise freehand work.
The price stops me from buying one My ABing does not bring to me any money yet and I'm not that rich yet to buy single needle for 83
Vladimir
I am not an experienced AB'er But I am using it to paint and sell fishing lures for a living, I hope... I have only just received my first boxes of packaging So I am balancing my budget where I think I can get the best results . So time will tell
There is no doubt that you can polish a needle a lot of ways at its most basic a dremel with a mop and car polish and away you go but profile changing is a little more challenging and require some machinery at minimum a bench grinder and a tool cutting attachment and some fine wheels and wheel dresser
For the work you do, I think Eclipse CS would be just great. This tool will serve you well for a long time. Only improvements can be done for it are polished needle and soft spring.
Now I do sanding and polishing manually, though from the start did that using Dremel. Funny thing is that hand treatment is more precise.
I think, I'll try those needles from Foxy, but when I'll have incomes from custom painting. I like trying new things, especially if they should improve the characteristics of tool.
You are spot on the only risk you faced was rounding off the very point,,,, solution don't push too hard the amount of material removed is tiny with no chance of profile change unless you are at it for 2 hoursI have polished normal iwata needle 0.18 just with a high gloss paste and dremel tool - but with the felt disc (or whatever its called) only! Absolutely no sand paper! It was super easy and looked EXACTLY smooth and polished as k33. I know it because i had it under microscope. And it works just GREAT. People say that you have to keep exactly this angle and that angle because its been manufactured with incredible precision etc...but sometimes people think too much.
So dont be afraid. Just get the finest polishing paste and dremel tool with felt disc only.
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You are spot on the only risk you faced was rounding off the very point,,,, solution don't push too hard the amount of material removed is tiny with no chance of profile change unless you are at it for 2 hours
One area that tends not to get mentioned is where the paint seal contact the needle you can feel the difference when you give it some attention
where did you get the needle cap from ? I want to do this but $50 for the micron needle cap makes me hesitate.The K33 needles also have a special treatment that makes them tougher.
Regarding the needle cap, I also use cheap modified ones. https://avwairbrushworks.wordpress.com/2013/09/09/needle-cap-mod/
These fit, there may be other models from generic brushes that do to, but I've used thesewhere did you get the needle cap from ? I want to do this but $50 for the micron needle cap makes me hesitate.