Omni 4000 Specs

You'll be more than happy with either of these brushes. I have the Omni but don't have a spec sheet for it but if I remember correctly, the nozzle comes in at 0.5mm.

Are both the Omni and Iwata capable doing fine lines?  I like the anthem 155 but seem to waste more paint.  My original brush was an Aztek but I didn't like the feel of the trigger.  Is the trigger pretty smooth on either of these brushes?

Rob

The nozzle size is not what determines line width, it is the needle taper.
The Omni 4000 will spray as fine of a line as you will need for modeling in my opinion.
If you want even finer get the Badger 100LG or if you want the most precise get the Sotar.

MikeV wrote:

The nozzle size is not what determines line width, it is the needle taper.

Mike, could you expand on this? TIA

When I got my 100G (m) it sprayed badly.  I looked at the needle and the point was very rough almost with burs on the start of the taper.  I was too lazy to send it back and besides that I wanted to use it so I put it in a variable speed drill and polished it carefully with oil and 1200 sandpaper.  I was careful not to change the taper.  Overall it improved it.  Sorry for getting OT.

Is the trigger in the Omni 4000 smooth?  I haven't tested either of these brushes since I will be purhasing both online, but I have been to the local hobby store and the trigger on the Iwata seems smoother compared to my badger.  Thank you.

Rob

Put some Badger Needle juice on the needle and trigger and it will be as smooth as you need.

I-beam wrote:

MikeV wrote: The nozzle size is not what determines line width, it is the needle taper. Mike, could you expand on this? TIA

Sure. The more taper that a needle has the finer the line it can spray.
It is not the diameter of the nozzle that determines line width, it is how long and fast the taper of the needle is. Nozzle diameter is more a function of what medium it was designed to spray.
The really small nozzle sizes you read about were designed to spray finely pigmented mediums like urethanes, inks, etc. The bigger nozzles were designed for acrylics and such with larger pigments.
I hope this helps.

Rob I use an Omni 4000 and a Badger 100, and hace to say I prefer the 100 as I find the trigger action smoother and more controllable than the Omni.

Don't get me wrong, the Omni is a great brush, I just feel more in control with the 100.

Karl