Finally Recieved it in the Mail...my Iwata HP-CH.

I'd be interested to find out how that micro airflow control works. What size needle and nozzle has it got? What was it mainly designed for? I'm really interested in finding out about this brush as I was eyeing that one when I got my tax money back.

Here's the text from the Auction I bought it on ebay..

This is Iwata's just-released "next generation" HP-C. Featuring the ultimate in finite air control directly at the nozzle with Iwata's new Micro Air Control (MAC) Valve Technology, the HP-CH doesn't just change air pressure instantly -- it changes the way you airbrush. Designed for artists who need extreme control of detailed spraying, this series uses larger diameter threads on the nozzle than the standard HP-C. This makes the nozzle much stronger when tightening it onto the airbrush and ensures better centering of the nozzle when it screws onto the airbrush body. The HP-CH is now made with Teflon needle packing, a dual-purpose cutaway, pre-set handle and one-piece auxiliary level/needle chucking guide construction.

The HP-CH has a 0.3mm nozzle and a large 1/3 oz tapered gravity feed color cup. The larger nozzle and needle makes this an ideal airbrush for spraying a variety of paints from watercolors to solvent-based automotive paints. Comes with color cup cover, wrench, and instruction book.

What did it cost you on Ebay?

Mike

QUOTE: Originally posted by maddafinga I'd be interested to find out how that micro airflow control works.

Josh,

That MAC valve is nothing more than a regulator that changes the air pressure coming out of the airbrush. Instead of having to bend down and adjust your pressure down you can just turn the MAC valve in and cut the pressure down.

Mike

$165

Not too bad of a price.

Mike

Without seeing the MAC in action I tend to agree with MikeV. It sounds like a gimmick to me. I suppose it would save me from reaching over and turning down my compressors regulator but it wouldn't help me turn UP the regulator. So I suppose you would have to run the compressor regulator on full and just adjust the air from the tip? Then how would I know what the air pressure is coming out of the brush? And I couldn't turn the compressor regulator down then expect to turn up the airbrush MAC valve for more air because the airbrush would only put out what it was being supplied from the air source. So maybe I would leave the MAC valve wide open and just adjust the air from the air compressor.

I think I just did the run around and I'm back where I started.

I think I will use an airbrush without a MAC valve.

Maybe someone could enlighten me as to why the MAC valve is better? Am I missing something?

roosterfish,

I think you surmised it pretty well actually. I have an Airbrush Art & Action Magazine with a review of the HP-CH and the others with the MAC control and they seemed to like it, but I think it is more suited for specialty airbrushing like automotive mural painting.

Mike

i'm with mike and rooter, i just dont get it. sorry, later.

I read the article again on the HP-CH and actually it sounds very interesting.
If you close the MAC valve all the way then very little air gets through and it produces a spattering effect which might come in handy.
It also has Teflon gaskets which is better than the other models which use cork and rubber. It has a needle path delimiter on the back of the handle, and the B and C models have a redesigned cup which improves the paint flow and makes it easier to clean. If you want these things then I guess it isn't really a gimmick, but to some it may seem so.

Personally, I would rather buy 2 Omni's and some extra tips and needles.

Mike

and i'd rather buy 3 badger 100's.

which would you rather do: Save 15 seconds, or save 50 dollers? exactly.

Abastyr, Nice piece you have there. Keep us posted and if you can post some pictures on the results of this airbrush, please do so.