what went wrong??

[moose]

Got a chance to hook up the compressor and flow some paint!

Paasche VL with a size 3(?) has three rings cut in the needle. 30 lbs air and using createx air brush paint.

attached are a few pictures. I seem to have a lot of splatter. AM I usingthe wrong tip or pressure?

Thanks
Tim

[blinddog 99]

Moose, it doesn't look all that bad. Do you have #1 needle and nozzle? It will get tighter. For a #3, your doing ok! Play with your pressure, never trust the gauge, but you will get the feel. Looks a little low (the spatter) on the first pick, but you have spiders on the second pic, which usually means too much pressure. It will take a while to feel the subtle difference. Distance from the surface is huge as well. When I am doing detail, I might have the compressor at 27 PSI, but I am so close, I have bent my needle on the surface, and am probably only pulling 6-10 PSi with my trigger pressure. Just keep on messin with it until you get the feel. But throw a # 1 kit in there and you might see a difference. Good luck, you're doing great!

[AirDave]

Yeah, I agree...
looks mostly like low air pressure
(as a result of low air pressure or slight blockage)
but then, I see the spidering, but thats probably cause you are overworking the problem and just laying down some wet stuff!

If you want to work with Createx (or use Createx in the future) learn how to deal with it. Don't switch to India Ink (unless you wanna learn that too) and don't thin the Createx.
Createx is designed to work right out of the bottle, and if it doesn't, its because something else needs attention or adjustment. Its important to learn how everything affects the paint you are using. Working with something like Createx is a good learning experience because it is a standalone ready to use paint (so you can't be blamed for mixing it wrong! LOL) ...but it is a paint with very particular qualities that require some attention and practice to master.

No.3 tip is what is recommended for paints like Createx. and will suit most paints and jobs.
No.1 tip is ?????? useless?....not sure why they include it...too small for most paints, and the VL is not good enough to handle that fine work. (sorry Paasche!)
No.5 tip...great for large fill spraying, and okay as a stand in, if you run out of #3 tips (don't expect to spray any detail though!)

I agree with D, check the head assemble (on the VL), make sure all air passages are clean and clear, and all parts are assembled securely.

[moose]

Thanks for the directions to look. whowhere: I will blow apart the head assembly and check for plugs. Wil lreport back withthe next practice sheet.

Tim:whowhere:

[moose]

Well a couple things actually.

Upon suggestions I took the brush apart. Somewhere in the past it was put together wrong. It had what appears to be a no. 1 tip with a no. 3 needle. I switched to a no. 3 tip and cleaned out all the passages. now it doesn't want to flow paint at all. Oh well back to disassembly.

On a good note I plugged in my other VL and got the results I was expecting. I still get a few freak drops, probably because I had slightly thinned the createx, BUT I can get good line width with out the spatter I was getting with the other brush. At least I have one good one to practice with till I sort out the bad one. It was flowing so it will flow again.

[AirDave]

If you had a 3# needle in a #1 tip,
then throw away the tip...its no good now!

but that doesn't really explain the splatter problem
(does it?)

now it doesn't flow paint at all?
then trace the paint passage from cup to tip,
somewhere its blocked.

[Whit]

I had the same prob once after changing out a needle/tip !!!
Seems I'd forgotten to tighten down the needle and the
trigger was just sliding back n forth and not pullin tha needle !!!
Hahaha,,, this is tha first time I've ever mentioned this to anyone !!!
Anyway,,, just something to be aware of !!! :wink2:

[Clem]

When you find a short cut for the answers please let me know. I have been searching for the answer on paint and pressure too. Just can't get it right. All I can say in this is keep trying. that is all I am doing.

Clem

[moose]

Well I tore into the flacky brush. I could no find anything wrong. I put another air cap on it and now it works great. I am able to get the control I need to practice. Tomorrow I will staert a new sheet and post the difference.

Thanks All for the help. Now I am on the way to making "stuff or will it be Art?"

Tim

[AirDave]

I forget...does the VL use the sealing ring behind the air cap?
Like the Iwatas (eclipse, etc)

If that o-ring is missing or damaged, the cap leaks and doesn't work.

maybe this has nothing to do with your problem,
its been awhile since I used a VL
(thought I would just mention this)

[moose]

Did you clean out the air holes in the head? they are tiny. Goes through the head from back where it screws on to the body to front where the cap screws on. 8 holes... I think. If it sprays good with the new head assembly then it's the holes. If it's just the cap you replaced then I'm in the dark. Unless the other cap had paint build up around it and that you can just peel off. I use a tot 50 stape held by a pair of hemostats to clean the holes out. Ted had brought his gun cleaning tools with us to Canton last month and there was one that fit right in those teeny holes. Wish I had one of them thar tools.

Air holes are clean. I cannot find the exploded view drawing. Does the paasche use different air caps relative to nozzle size? If so that might be the problem. If the air cap is the same for size 1 and 3 then I am at a loss. Maybe I did not have it on tight enough.

When I put the size 3 nozzle on to match the needle I did not change the air cap. If there is a difference how do you tell as there is no markings. I know the outer tip changes but am unsure about the air cap.

Tim

[moose]

http://www.airbrushtech.info/AIRBRUSH/forum/attachment.php?attachmentid=130&d=1161524336

I changed part 4. Part 3 is numbered and it was correct withthe size 3 needle. the nozzle was a 1. I may have used the wrong term when I said air cap.