Showing posts with label painting. Show all posts
Showing posts with label painting. Show all posts

Thursday, May 23, 2024

A New Bit of Kit


 I’ve not put on a new piece of “plant” in a very long time, but circumstances recently compelled me to update. For something like 35 years, I’ve run my airbrush on a cylinder of compressed air, which has worked very well indeed, however complications with supply forced a rethink. When the yearly hire cost of the bottle crept up toward a dollar per day, I knew I needed a cheaper alternative.

I’ve resisted the idea of a compressor for years on two counts—the noise they’re liable to make, and the cost. I looked at units years ago and they were still substantially more expensive than bottle hire, but, lo and behold, there are more modest units designed specifically for the hobby/craft marketplace that are not so expensive, and, being meant for domestic or public-contact business applications, also run quietly.

It turns out I didn’t have to look far. This is the Artlogic AC1418, which is compact and tidy. I originally looked at the 1318 model, but on having a chat with the customer service folk at Airbrush Warehouse, I found the 1318 was not recommended for use with syphon-feed airbrushes, like my Paasche VL. The 1418 has a 3-litre collecting tank, which smooths the delivery, and this is certainly essential. The 1418 was on special, only $20 more than its smaller counterpart, so I was very much into pocket.

The unit weighs only 4.15kg, and is small—370 x 170 x 350mm. It neatly occupies the same floor space that the gas bottle used to, and is less obtrusive in the room (I can get to drawers without moving the cylinder now!) Operation is very straight forward, and the first thing that impressed me was how quiet the unit it. It generates only 47 dB with the pump running, which is no louder than a normal conversation!

Default setting on the pressure control valve was 35psi, which turned out to be way higher than I’ve been using all these years. My CIG gauges (yes, they’re so old they predate Australia’s Commonwealth Industrial Gasses concern being taken over by British Oxygen Corporation!) read in flow (litres per minute) rather than pressure, while the compressor reads in psi, and there is of course no objective way to convert between those measurements. A comfortable spraying pressure for my settup seems to be a touch under 20psi. I dialled it way down in the first session of experimentation, and will take it even lower for some applications.

The Paasche connector’s quarter-inch thread screwed straight onto the compressor outlet, and didn’t even need thread tape. I find the AC1418 easily delivers more power than my usual applications demand: I could see using the higher end (up to 60psi) for painting something big, a large-scale tank or battleship kit, or perhaps doing airbrush art in which I’m laying a solid base colour onto a large panel area—say a solid black over which to do spacescapes. I used to do paintings like that back in the 80s, with my old Badger 350—but I “blacked-up” the board with a 1” brush in those days!

I’ve done several sessions of work so far, and I must be using the unit well within its capacities. The instructions caution the user to let the compressor cool down before touching, but so far it’s only been mildly warm. Also, this is my first time working with a moisture trap, and I have yet to see any liquid collect in the trap chamber.

The price was very attractive. The unit plus courier costs came in at under Aus$200, and I’m very happy with that. I’m optimistic that this will be a new lease of life on my hobby and art. The next step is to renew my workshop lighting—the old strip light gave up the ghost years back, so it’s high time to get back to bright, daylight-type illumination for both working and photography, and the real kicker is that I can probably do it and still be into pocket against the savings on a single year’s tank hire . This blog could do with some serious revitalising, and soon I might just have a work flow worth talking about again!


Cheers, Mike Adamson

Saturday, July 6, 2019

It Worked!


Sometimes the manufacturers really do know what they’re talking about… I’ve been working on Tamiya’s 1:12th scale Suzuki Katana off and on, a 2017 build that’s been on the shelf (full build post to come) and the wheel rims are in bright finish, which Tamiya recommend be done with an X-11 Chrome Silver enamel paint marker pen. I’ve never used their paint markers before and ordered one up with some trepidation, thoughts of floods of paint or dried-up tips going through my mind.

I searched YouTube for how-to videos and found one out of Russia which, though I could follow not a word, was pretty self-explanatory as far as appropriate touch for applying the tip to a surface was concerned. Even so, I put the job off at least a month before there was not one other thing to do on the project before this task.

Of course, when I finally opened the marker, gave it a good shake and started the flow, it worked perfectly. The corner of the chisel-tip seated comfortably into the wheel rim and I applied the paint in short, controlled sections. Before I knew it, it was done and the parts were set aside to dry. Some commentaries have remarked that this can take a long time, into the second day and still tacky, but I find myself wondering if that indicates the paint was insufficiently agitated beforehand. This oaint was dry in an hour.
               
The bright silver rim does not show up very well in the available-light photo at top, and the marker pen, which ships in a plastic shrink-wrap, has been resealed with tape at the cap juncture, to preserve paint life. The picture below shows the front wheel, with a gunmetal finish, and the chrome rim shines beautifully in a flash shot.

When these parts are ready to be handled, I can do most of the remaining build-up, indeed the only painting left to do is the front brake units and the rubber protector around the windshield transparency (fiddly masking required on both). But this project should hopefully come together quite quickly now.

Cheers, Mike Adamson


Saturday, November 17, 2018

Building Bigger


Sometimes, with the pressure of one's daily obligations, a piece of work can be produced and clean forgotten. Below is a model build-up feature I wrote years ago, and even then it was a retrospective on a project which had not been documented at time of actual completion. I was browsing for some information in old articles and came across the text, so figured it was high time this one saw the light of day!
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As I’ve ruefully mentioned before on this blog, some modellers build bigger as they get older simply because they can’t see the small ones anymore. That’s very true for me, yet I haven’t built large scale planes since I was a kid – in fact I’ve only done one 1:32 aircraft in modern times. My previous was 34 (now 36!) years ago!


In 2014 I tackled Hasegawa’s big scale Fw 190 A-8 and had a great deal of fun with it. There were one or two hassles – the fit of the engine cowling to the fuselage left a lot to be desired and was a tough contour to fill and sand but that was about the only structural difficulty. The decal sheet was a let-down – I had selected Hans Dortenmann’s Red 1 and as with so many Luftwaffe aircraft the markings and the camouflage scheme particulars go hand in hand. It was bad news when it turned out the sheet was unserviceable, as the paintwork was fully finished. Patching the markings together from AM sheets would have been a $60 job (three sheets required). Fortunately a friend in Europe had the same kit and was doing it in different markings and sent me his sheet, which worked perfectly.


It’s a big, beautiful bird, and at this scale the problems of airbrush mottling are minimised – overspray can still be an issue but the battle for fineness seems less acute. The cockpit was easy to detail, and the 1:32 etched harness was incredibly realistic. The outer pair of canon barrels is missing – by the time I was done I was more than slightly browned off with Hasegawa’s engineering choice to simply scab them onto the exterior as optional bits, as my confidence to get them lined up in both axes while glue dried was in negative numbers, so she’s a slightly odd-looking A-8 here. Better that than make a mess after so much work had been invested…




I didn’t weather this one heavily – weathering is a skill mated t0 scale and one must learn to use a heavier hand as scale increases. I’m not comfortable with really laying on filth so this bird is in very well-maintained condition – which they must have been at least some of the time.

So why so few models in this scale? Simple, somewhere to put them. You can store four, even six, 1:72nd scale models in the same area as the “footprint” of a 1:32nd scale project, and you very quickly fill display cases with the big guys. I have plenty of models in this scale and would like plenty more, but until the day comes I have some sort of storage designed to receive them – shelves of the appropriate depth and at a spacing which does not waste cubic volume with empty air – I fear I’ll have to leave them where they are, buried deep in the stash.


There’s also a lot of work in a big model, even if it’s structurally no more complicated. It certainly uses a lot more paint, you’re aware of your running supplies being used more quickly. But that’s par for the course, I can only imagine the investment in time and materials the ship guys go to when they’re building the new Trumpeter 1:200th scale battleships. Now there’s a project to conjure with – it gives a whole new meaning to the term “big scale.” It is to ships what 1:16th scale is to armour or 1:24th scale to planes.

Hmmm, that reminds me, I have an Airfix 1:24th scale Harrier hiding away in the stash. After more than forty years since the basic tooling came out it might be high time it got the full treatment… If only I had somewhere to put it!







Thursday, January 27, 2011

Raiders of the Lost Paint Stand


Many years ago, about 2002 I think, I published a small article in FineScale Modeler about how to make your own painting stands. They have those fancy ones you can buy, with clamps and a rotating base, they adapt to any model, and sure, they’re great, but they cost mucho dollars. I proposed a simple solution, a purpose-made painting jig that will support a model while you’re spraying it. With aircraft, the idea is you paint the underside, then turn it over with the stand locating into the wheel wells, and go hands-off to paint the top.

Car modellers have long used the old standby of a bent coat hanger to support a car body while it’s being sprayed, the single most critical phase in car models. The finish on the paint is everything and getting that coat on just right means treating the job like the real thing. Armour is less demanding in this sense, as flat paints are much more forgiving: no matter how complex the scheme, the paints will be touch-dry in no time and you can adjust and move on.

Aircraft of multiple colours offer the chance to spray one shade, let it dry, then support the model by those areas while painting the next, but what about models which are largely or completely mono-tone? The axiom of “keeping a wet edge” to the spray coat becomes difficult to say the least, and that’s where a stand really comes in.

We probably all have ideas and solutions to this problem, and no particular approach is any righter (or wronger) than another. I have found that a handy way to do it is to glue together a few bits of styrene rod, strip and sheet to make a stand that supports the plane on three points, and it really couldn’t be easier.

The stand I made for the article all those years ago was designed for a 1:72 Corsair, and, working on the kit that has appeared in my last two posts, I had a need for it. Unfortunately I couldn’t find it, so had to make up another. Rather than duplicate the original design, I used the even simpler design for the 1:72 Phantom painting stand that I made in 2003 for another FSM feature project, and which I do still have to hand.

Two pieces of sheet plastic are tenon-jointed together to make a cruciform shape with the short axis equal to the track of the main gear wells, and the long arm reaching to the tail gear well. They are braced together with some 3.2mm angle stock, then three uprights are installed, the main well supports from 2mm square stock, braced with small angle, and the tail support made from strip stock laid onto each side of the sheet and another piece between them to create a solid column above the sheet. I cut the pieces in ten minutes and assembled them with liquid cement in less.



The great thing is, you can adapt this formula for any aircraft type in any scale, and if you know you’ll be building many of a particular type they can solve the hassle of how to hold a monocoloured bird while the paint is going on. For US Navy types between 1944 and 1958, with that iconic overall Dark Sea Blue scheme, it really simplifies things.

Oh, and yes, if you remember that article in FSM, it was the very same Corsair model appearing in it as I am just now coming to grips with!

Tuesday, October 5, 2010

Kit Review: Tamiya 1:48 Fw 190 F-8



This kit is 15 years old, #39 in Tamiya's expanding 1:48th scale aircraft range, and while there would be many reviewers quick to point out that the kit is "showing it's age" in ways, I would sooner concentrate on the ways in which this kit is still a very good one, and a very pleasing build. Some might point to Dragon's and Eduard's offerings as being far more detailed, with hatches that display engines and guns, but I would point to the sheer unfriendliness of those kits to build, their susceptibility to misalignment of the major components if key elements of their multitudinous internal fittings are not mounted with exact precision, something many builders only discover retrospectively after doing it wrong the first time.



In contrast, Tamiya offers a basic cockpit and engine, the latter of which is pretty much invisible behind the prop and fan (as is going to be the case with any closed-cowl 190), and the cockpit looks just fine through a closed canopy. Add some harness hardware, that would be about all you'd need to up-detail the cockpit, unless opening the hood.



The cockpit features raised instrument detail which responds very well to drybrushing, and a gunsight which is clearly visible through the windscreen. A choice of standard or Galland Haube (blown) canopies is provided, both crystal clear. The prop mounts on a poly cap, a Tamiya trademark, which allows it to be slipped into place at the very end, easing not only painting and decaling, as the spiralschnauze really needs to be applied to the spinner cone before the prop is built up.

There are some stores options for this, the dedicated ground attack variant of the 190. Twin underwing pallets for R4 unguided rockets are optional vs a quartet of well-molded SC50 bombs and their pylons, while a 300L droptank and rack are provided for the centreline station.



The Tamiya kit builds beautifully. Buildability is a dependable trait for Tamiya and even so early in their series, only a few kits after switching to recessed panel lines as standard, the parts fall together very neatly indeed. The main fuselage and wing parts are super-accurate and align correctly on their pins; the tail surfaces literally snap into place and their tabs and slots are size-coded so you can't get the surfaces on upside down. The engine cowling is a single moulding into which the completed engine sits before the unit fits back onto the fuselage and the gunbay cover drops into place.

A separate insert for the wheelwell brings up the possible detail level, while separate parts for the retraction struts, locking to the legs at fixed pivot pins, assures the main gear will almost fall into correct alignment, a boon when one considers the forward rake and toe-in on the Focke-Wulf undercarriage that can be a challenge on some kits. This is standard engineering that will be found throughout Tamiya's 190 range.



Similarly, the single-piece lower wing surface assures the correct dihedral and a gentle flexed fit for the wing to fuselage joint, often the major issue with joint dressing but here requiring no attention at all. Overall, the joints were dressed with a little adzing and wet sanding over superglue assembly, while some joints were closed with liquid cement on natural panel lines,. Filler was used in only a couple of places, such as behind the engine cowl, down by the wing roots, and to eliminate discontinuities where sprue attachment points fell.

The decals provide for four aircraft, all interesting choices, including the famous Black 10 of 2/SG4 in tropical camouflage for the Italian campaign of 1944, Green Double Chevron of SG2 in March '45, White 7 of I/SG2, in Hungary during the winter of '44 to '45, and Red 2 of I/SG2 in a zebra-pattern winter camo over standard RLM 74/75/76, in early '45. In 1995 Tamiya was recommending mixing rations to reach RLM equivalents from their acrylics range, while later kits offer matches from the Tamiya enamels range.



Their formula for RLM 76 (XF-2 Flat White plus XF-23 Pale Blue plus XF-66 Light Grey ata ratio of 7:1:2, provides a virtually perfect match for the original, lacking only lustre, and an addition of 25 to 30% X-22 Clear Gloss approximates the sheen of the original RLM colours. Unfortunately, their suggested formulas for the 74 and 75 are miles off, and I experimented to find a decent fit. For 74 they recommend XF-24 Dark Grey and XF-27 Schwartzgrun at 3:2, but this was too dark and too green, especially compared to the Model Master enamel equivalent. I reduced the ratio to 3:1 and added 1 part Flat White as well, then brought up the lustre with 30% Clear Gloss. For the 75, Tamiya suggests XF-51 Khaki should be a component, but as 75 has no green hue at all this mystifies me. I mixed it from scratch, starting with XF-24 Dark Grey and adding Flat White at a ratio of 2:1, then adding 30% Clear Gloss. On reflection this was too much gloss, as darker shades reflect more strongly than lighter ones, and 20% would have been ample. The final shades were acceptably similar to the Model Master enamel equivalents, though I have to say the acrylics are both more delicate and lack a certain 'gutsiness' that the solvent-based paints have. I mixed the RLM 04 Yellow also, warming and lightening XF-3 Yellow slightly (it could have gone still lighter...)

The camouflage was soft-masked using light card, while hard edges were acheved with Tamiya tape. This was my first time doing an all-acrylic multi-tone paintjob and I was quite pleased with the result, not pleased enough to say I'll retire enamels, but pleased that I can pursue a build like this in weather which forbids taking the hobby outside to spray solvent-based paints.



If there was any particular shortcoming to the kit, it was the decals. Two sheets are provided, one large, one small, with all the stencil data on the small sheet along with a few squadron markings. The small sheet was glossy and the glue was both slow to release from the backing paper and quick to dissolve thereafter, resulting in decals that were not predisposed to lying down invisibly. Even when gauging the soaking time correctly, some of the decals were prone to wrinkling, calling for considerable skill with solvent and setting solutions to get them to even out and pull into surface detail. I'm very glad I painted the block colour areas of the scheme I chose, as the decal version of those areas I am certain would have been unnecessarily difficult to apply and not looked half as good. There are, of course, aftermarket decal sets for the Fw 190 almost beyond reckoning, many of them probably being released with this very kit in mind, so this is perhaps the least of concerns.

Finishing tricks included carbon staining and dust applied with MiG Productions powder pigments, and an antenna wire made from Berkshire Junction EZLine.



I'm sorry this kit is out of production. Hopefully it will be reissued at some point, and until then one must haunt eBay with a watchful eye to catch it when it changes hands from time to time. My verdict on the Tamiya Fw 190 F-8 is that it is a very pleasant build with few challenges, which can be both tackled by a beginner and enjoyed by a master, and which certainly captures the stance and look of Kurt Tank's masterpiece fighter.

Thursday, September 30, 2010

Product Review: Tamiya Masking Tape



I remember building Revell's prototype F-16 when I was a kid, in the early 1970s, the one painted up in red, white and blue. The kit was molded in white so I let the white areas be raw plastic, and masked the hard-edge red and blue. I used cellotape, which over raw plastic had nothing to pull up and gave razor-sharp demarcations. I was very impressed with the edge work, less so with the finish of flat enamels slathered on thickly with a brush, and which somehow managed to migrate under the tape where it crossed detail.

Not long afterward I tackled Monogram's B-52D, painting the whole thing with a brush in Humbrol enamels. The white underside took coat after coat and must have looked like it had been done with a roller... Due to the size I used automotive masking tape and of course discovered the necessity of de-gluing the back. Even over well-cured, thick enamel the tape had a de-surfacing effect that was not attractive. I had planned to mask and paint the walkway stripes over the NMF but after early experiments abandoned the idea. Somehow paint would always migrate under, no matter how well-burnished the tape edge seemed to be...

I used to think joint dressing was the biggest drag in the hobby, but since the advent of both cyanoacrylate glue and better-engineered kits joints have become simply a part of the process, not the disfiguring headache they once were, and the necessity of masking the paintjob has rather moved to the fore as the most time-consuming task in reaching a really good result.

Household/automotive paper tape is not designed for delicate paints and you need to seriously de-glue it to stand a chance. Scotch brand invisible mending tape is not very sticky and produces a very sharp edge. The problem with these two is they are not very flexible, they don't deform easily around corners. In the US there is the blue 'painters' tape,' but I'm not aware of it (or an equivalent) in Australia. To be fair, I've not checked out hardware stores for the item, but there's not much point when you have an item like Tamiya tape in the tool draw.

If there was a perfect product for this application, I'd have to say Tamiya have nailed it. Their tape is low-tack, burnishes down tight, deforms readily, and peels off clean. I have yet to have it pull up sprayed acrylics or enamels over any properly prepared surface (the only time I had it take paint off right through to the plastic was attributable to a deposit left on the surface of the model by the cleaning agent I had used to degrease it). The tape is also essentially re-usable, I have used the same pieces of tape on multiple projects, simply by transferring them to another plastic surface where they can stick for weeks or months and again peel off cleanly.

The tape comes in a variety of widths from narrow to broad so you have the option of curving lines or bulk coverage. I usually put a strip down on my cutting mat and slice it up with a razor knife and steel rule into ultra-narrow pieces or shapes as the job calls for. The dispenser rolls are a good idea, too.

The FW 190 I have on the bench at the moment was masked in both hard and soft contexts. The unit markings featured yellow rudder, cowl and fuselage bands, and rather than go with the kit decals for these items I sprayed them at the same time as the rudder. After overnight curing I masked them with strips of Tamiya tape and carried on with the rest of the paintjob. Several days went by, then I removed the hard masks and discovered perfectly sharp edges, and perfect protection of the underlying paint from later applications.

The big resin Beta-1 bomber featured in the last couple of posts was also fully masked with Tamiya tape, a long and complex operation, but one which went off essentially without a hitch. The colour demarcations are as tight and sharp as you could possibly wish for, with absolutely no paint bleed-under or de-surfacing on removal.

Tamiya tape is an indispensable tool in my kit, and I recommend it without reservation.