It pays to replace a nozzle once in a while

Lately I found I started to have some troubles with realy small detail (which an Iwata Cm-SB sould be capable of).

As the needle had been replaced recently (dropped it ) I thought I'd have a look at the nozzle but that seemed to be alright even under a magnifying glass. I had been using the same nozzle for more than a year though so I thought I'd replace it anyway (worst case I'd have a spare nozzle ). I was slightly flabberghasted by how well the gun suddenly preformed. I think as the performance gradualy deteriorated I got used to it.. it's like having a completely new gun .

I did a quick scribly, to see how small (and controlled) it worked, and I realy wouldn't have been able to work at this scale with the old nozzle.

So new rule of thumb: replace nozzle once in a while even when it still looks good

That is great advice. I replaced the head assembly on my CM-C+ due to broken threads on the air cap and I could see a huge difference in performance .
That is a small eye by the way

haasje dutchairbrush said:

Lately I found I started to have some troubles with realy small detail (which an Iwata Cm-SB sould be capable of).

As the needle had been replaced recently (dropped it ) I thought I'd have a look at the nozzle but that seemed to be alright even under a magnifying glass. I had been using the same nozzle for more than a year though so I thought I'd replace it anyway (worst case I'd have a spare nozzle ). I was slightly flabberghasted by how well the gun suddenly preformed. I think as the performance gradualy deteriorated I got used to it.. it's like having a completely new gun .

Click to expand...

Were you able to get away with just changing the nozzle, or did you have to replace the whole head assembly, as Mr. Micron did? I ask because I've been contemplating picking up a CM-SB for quite a while, but heard that when the nozzle needed replacing, it was "ALWAYS" best to change the whole head, and that would get a little pricey after a while. The fact that the head assembly alone, costs more than all my other air brushes, has always been what held me up. Not that I go through a lot of nozzles, but I also know how clumsy I can be. But if just changing the nozzle is an acceptable option, I might not have to talk myself myself out of this purchase for much longer.

foreveryoung001 said:

Were you able to get away with just changing the nozzle, or did you have to replace the whole head assembly, as Mr. Micron did? I ask because I've been contemplating picking up a CM-SB for quite a while, but heard that when the nozzle needed replacing, it was "ALWAYS" best to change the whole head, and that would get a little pricey after a while. The fact that the head assembly alone, costs more than all my other air brushes, has always been what held me up. Not that I go through a lot of nozzles, but I also know how clumsy I can be. But if just changing the nozzle is an acceptable option, I might not have to talk myself myself out of this purchase for much longer.

Click to expand...

The only time I replaced the whole head was when I managed to drop my CM-C on a concrete floor (wa just slightly cheaper to replace than to buy a new CM-C :sour. I also heard of people doing this but I realy don't see the point of it. I'd have to buy all pieces seperately so it's not like they were made to fit eachother.

So far for the CM-C (except for the little accident) and CM-SB I have only been replacing nozzles and they alway's paint like new after that. If replacing the whole head would make them preform even better I seriously doubt I'd notice it

haasje dutchairbrush said:

So far for the CM-C (except for the little accident) and CM-SB I have only been replacing nozzles and they alway's paint like new after that. If replacing the whole head would make them preform even better I seriously doubt I'd notice it

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Cool. Its not like I have enough talent or skill that I'd be able to tell a difference, but its more the principle of being the cheap bastard that I am. LOL

Only thing you have to watch for is over tightening the nozzle but the only reason I replace the entire head was because I could not get the broken piece out of the head assembly.

I wonder what is actually happening to the old tip.
Is it getting micro cracks? Or maybe the very front is mushrooming. The needle is constantly putting pressure on the tip of that nozzle. I'm sure over time it has to start deforming.

LOL, mines only about 12 years old though, am aiming for at least 20 out of a nozzle LOL

anything pushed through the nozzle will be abrasive to a certain degree... plus the needle movement itself will wear eventually... same as a car engine.. some will do 150k and some die after 50k.