CR 0.3mm Kit Tutorial

[Guest]

They do look good, I just hope they are the same size as the standard CR. The odd thing is, they say the CR shaft is 1.4mm in diameter, this is .2mm larger than I measured! I hope my micrometer isn't that far out. I'll see what they say tomorrow.

I don't expect that I'll change the set that often, but its good to know I can easily.

[Guest]

BTW m1ks, did you manage to sell your polished needles (I've since found your post!)? What diameter do you make them?

Also, 1.00mm to 1.1mm= 10%, LOL, thats a huge difference ain't it!

[Guest]

I didn't get any interest as it happens, but then I thought, they're not taking up space and i'll save them in case some kind soul ever buys me an Iwata :smile1:

My Micrometers hiding among things in the shed and it's wet and cold so no chance of a measurement just yet but i'll get onto it as soon as I dare brave the brisk outdoors.

[Guest]

You never know! My wifes business paid for mine in the end, now thats going to cost me......!

I've just dug out my Vernier calipers and found that my micrometers are a bit out, I now make the 0.3 needle 1.2 dia. That'll make the .5 about right at 1.4. I may take the plunge and get a set of those polished .3 needles at the end of the month, watch this space for my findings!

I've just run a colour through the .3 set up now and its really nice, just what I wanted for 1/72 stuff. Nice and fine. I stuck with tamiya mixed as usual, about 1:1, with X20. I may have to change the mix a bit now though, the paint was drying before it got to the surface if I pulled too far back. NP, I can deal with that.

Thanks for all you help chaps,

Rick.

[Guest]

What PSI are you spraying at? I find correctly thinned Tamiya Acryl sprays just nicely at about 12PSI, (15 max), allowing you to lay a wet coat nicely without the pressure flooding and causing drips, too high a pressure with the acryl either causes the paint to dry if too far away or flood and run if too close.

Still need to dig out the micrometer but I will get around to it.

[Guest]

Well, thanks to this tutorial and the fine service offered by the Forum Shop, cheers John, I have now finished converting my Iwata CR into the .3 as above. Still to try it out but this tutorial has been invaluable in doing the hardware bit, many thanks again Rick

[Guest]

m1ks I'm running it at about 15-17 psi, I'll drop it down a bit now, thanks for the tip! I'm just about to do the Klear after dinner, I'll spray that too and see how it goes.

Graham, as you may have gathered from previous post there's a chance that you can get 0.3mm needles from a third party Co that are the same diameter as the Iwata 0.5mm. This would make it much easier to swap between the two. Mind you, since I queried their quoted spec they haven't come back to me! Lol, I'll give them the benefit of the doubt. If all is true I'll get one at the end of the month and see how it goes.

One thing I did do chaps was polish the needles with Brasso, this has made them much easier to clean, they look nice and shiny too! Mmmm, shiny..... !

Rick.

[Guest]

nearly forgot m1ks, I've borrowed another set of micrometers and they confirm that the 0.5 needle has a shaft of 1.4mm and the 0.3 has one of 1.2 ish (cant remember exactly, had too much coffee since measuring!).

[Guest]

If it doesn't work for you then you can always jiggle the presure about a bit, I intially started with about 15PSI myself but found when thinned to roughly milk consistency, (I don't measure now, just mix in a pot by eye then decant into the cup), that it did either one or the other, (dry or flood), don't take my settings as gospel, i've heard of some modellers spraying acryl at 40PSI, (I was surprised too), I guess much depends on the thickness of the paint.

Still not ventured out BTW, got a roaring fire going, sitting enjoying a cold beer and watching Scooby Doo and the loch ness monster with my wee boy, (he made me, honest)

I haven't been entirely idle, i've been modelling a polar bear and his winter hideout for the wee fella's homework, me and the missis have been having bags of fun.

Mike

[Guest]

One thing to watch with third party needles is that they may be the right thickness but are they the right angle of taper to match the nozzle? If not, the needle could end up damaging the nozzle after time as it will not seat properly.

[Guest]

Right, have finally managed to get into the shed and have a play with the Iwata CR .3mm. Wow, it has now become the airbrush I dreamed of. The ability to make fine lines, I even managed a bit of writing with it, is vastly different. I hoped that the small change from .5 to .3 would go a long way towards giving me the control I want. To say it has done this a bit is an understatement. In the short time I have had a play with it, the difference is amazing. Anyone who has a CR, do the decent thing and give it the nozzle set it deserves.

[Guest]

Good point about the nozzle Graham, I'll investigate further.

I ran the Klear through it last night, its the first time through this brush, and I think it was hard work compared to hand painting it! Guess I'll give that a miss in future!

I may pop to Telford today and grab some MA to try. Temptation is great though, I do need a compressor, the owner of my borrowed one is moaning now!

Right, Glad Rags on for Parade, cya Chaps.

Rick.

[Guest]

You can get a decent sompact silent model on ebay for under £100, the one I got with my original airbrushes is just great, the only thing I'd do differentlt is buy one with a tank now just to maintain more air and minimise the the on/off nature and heating though i've done protracted spraying and gotten mine quite hot without the thermal cutout kicking in yet.

e.g. SprayMaster Deluxe Airbrush Compressor Air Brush AC18B on eBay (end time 28-Nov-10 08:45:15 GMT)

[Guest]

That is a bargain for the compressor,same one were being sold at Telford for £100. I did buy a Spraymaster AB 135 with 0.2, 0.3 and 0.5 nozzle and needle setup.

Tony..

[Guest]

Thats the very one I've borrowed. I find its pretty good, the one I want is the same beast with a tank.

Interesting to note on the Telford prices, I'm glad I didn't go!

All noted on your post yesterday Mike, kids, you gotta love um! I've a back log of model railway buildings to build and paint for my Lad.. Mind you, I'm fed up of camo stuff now, good time for a change.

Rick.