An architectural play-model: Part 1

 

David Neat, architectural model, 2018

I was asked to make a model of gallery rooms newly added to a private house in Hampshire, and have been working on this part-time for the last few months. The focus was on the interiors, since the idea was that the owners could use the model to explore different arrangements of the contents, but it was agreed that the model could also have an aesthetic presence of its own .. as a sculptural object in itself .. so I took the freedom to stylize aspects of the exterior and to avoid fussy detail. After initial talks with the friends who’d commissioned it the model developed its ‘plaything’ nature .. somewhere between dollshouse and construction kit .. as it progressed. From the beginning the plan was that there would be detachable sections, making it possible to peer into parts of rooms, but that these ‘building blocks’ could be quickly and cleanly reassembled again. This suggested a baseboard with cavities into which room sections could be slotted into place .. further adding the qualities of ‘jigsaw’ and ‘puzzle’ to the aspect of play.

We wanted the roof structures to be represented, mainly to illustrate how the interiors are crowned by these light-receiving cones. But I only wanted to ‘outline’ them as it were, and they needed to be detachable. Giving them any suggestion of their external nature would have made them too heavy-looking, so I took advantage of their separateness to make them  ’emblems’ in yellow Palight.

David Neat, architectural model, 2018

David Neat, architectural model, 2018

David Neat, architectural model, 2018

 

Working with Palight and Palfoam

Once again I wanted to use my favourite foamed PVC for most of the build, because it is one of the most manageable and versatile materials I know! Using this would also mean that the individual ‘room blocks’ would not become too heavy while still being structurally very solid. At the chosen scale of 1:25 the main walls came to roughly 15mm thick in the model, while the interior walls could be represented with 5mm. I had quite a large stock of 5mm, but I chose to build each section of thick wall as a ‘sandwich’ i.e. solid 5mm PVC both sides, with a 5mm thick framework in between. This was partly to reduce the weight ( and therefore the stress on the boxes ) a little more, but also because I wanted to build in a continuous groove along the tops of the walls to slot the ceilings into. In retrospect I wouldn’t do it this way again if I could help it .. it was an awful amount of cutting, sanding, aligning and gluing!

David Neat, architectural model 2018, detail of foamed PVC walls

Here in the UK Palram’s ‘Palight’ brand foamed PVC is available in white or a small selection of colours, and comes in a few different thicknesses. But of the white only the 1mm thickness is actually Palight. In the thicknesses from 2mm to 10mm ( there used to be thicker, but no longer it seems) the material is Palfoam. This is important to know, and to check when ordering, because Palfoam is softer. This makes it even easier to cut ( with a scalpel for example, as I do, and especially if one cuts along the extrusion grain i.e. along the less bendy direction ) and it glues together even stronger because the cut edges are more porous. But the surface of Palfoam is much more susceptible to scratching, so something needs to be done about it if it’s being used for a model that’s going to be handled.

David Neat, architectural model 2018, white wall texture samples

I knew that I was going to clad the outsides anyway with whatever I came up with for the brickwork effect, so my first task was to find a covering which would be suitable for the interior walls, which in reality were just white-painted plasterboard. Apart from the practical durability aspect I wasn’t happy with the idea of just white PVC walls anyway .. it’s the most uninteresting, lifeless form of white! One possibility was cladding the interior with Daler Rowney ‘Georgian’ oil painting paper ( on the left above ) which is quite a tough 250gsm, primer-coated and ‘linen’ textured paper. This is available as pads or sheets. The other idea was evenly stippling Polycell’s Fine Surface Polyfilla directly onto the PVC ( shown on the right ). I’ve textured PVC this way before  so I know that it stays put and resists scratching better than the plastic alone. It’s tricky at times to maintain an even quality of stipple, and the oil painting paper was the easier and quicker of the two to do, but I was worried that the paper could scuffing at the edges after repeated handling. Fine Surface Polyfilla is also a more sympathetic, slightly warmer white, so I chose this for the wall treatment.

David Neat, architectural model 2018, detail of stippled texture on walls

 

Simulating polished concrete

The most important aspect of the interior, the part which needed to look ‘convincing’ above all else, was the polished concrete floor. Especially so, since floors assume greater significance in models than in real life, because we’re mostly looking straight down on them. That usually can’t be helped, but it’s one of the reasons why we chose to make the model in removable parts, making it possible to get more of the ground level perspective.

David Neat model-maker, architectural model 2018, polished concrete floor

David Neat model-maker, architectural model 2018, polished concrete floor

I was originally going  to go with a method I’d tried before, using matt photo prints of actual concrete and achieving the polished look by spraymounting clear acetate on top. I’ve used this technique for very convincing marble or polished wood, easy to play around with because the parts can be ‘tweaked’ separately instead of having to achieve it all-at-once, and satisfying to look at because the surface effects ‘come from within’ rather than lying opaquely on top. Incidentally, it’s interesting to observe from the last three photos how .. even in simulations! .. the particular warm greenish-grey of concrete can alter quite a bit dependent on the light. I’ve noticed many times in real life how much concrete can change its mood under different lighting.

David Neat model-maker, recycled paper

As I was saying, I’d planned to create the concrete with photos but by chance I happened to have a cheap, recycled paper that worked even better as a basis. These (above) were file dividers found in a £shop which I’d kept because their back surface was interesting. The grey ones were a good basis in terms of colour and mottling, a suitable warm greenish-grey, though a little too dark and too even. But I found that if I use a sanding sponge on the paper  I could make it lighter, while giving it a bit of animation.

David neat model-maker, simulating cocrete with recycled paper

David Neat model-maker, concrete effect samples

Embossing the back first with a serrated modelling tool created other distinctive patterns in the paper when sanded. I didn’t want this kind of patterning in this case, but it’s an interesting effect.

David Neat model-maker, polished concrete simulation using recycled paper and acetate

I had to cut the floor pieces out of 2mm Palfoam first, clad these in the paper ( spraymounting down using 3M’s Craft Mount, the strongest ), modify the paper surface by sanding, vacuum the surface to remove any dust .. then I could apply the acetate. This is straightforward ‘transparency film’ designed for printing on, sometimes also called ‘OHP film’ ( for overhead projection ). Hence it’s surface feels slightly rough on one side, because there are micro-deposits of clear priming material to help the ink to fix. It is this side of the acetate that needs to be spraymounted, then laid and firmly rubbed down over the paper. Now the glossy side of the acetate is on top. This is usually too glossy for a polished concrete surface ( though it depends what look you’re going for) so I take some of the gloss away by rubbing either with a kitchen scourer or very fine sanding sponge ( the kind painter/decorators use for matting paintwork ). This will deepen but also slightly lighten the effect.

David Neat model-maker, samples for a polished concrete floor

I felt in the end that my polished concrete was still a little too dark and not ‘beige’ enough, so I gave all the pieces a light and mottled dusting with Belton Molotow ‘Stone grey light’ spray paint. Above .. to the left is an example of the photoprint method (which in this case was far too busy and specific); in the middle is the recycled paper/acetate version; and on the right the final adjustment adding a dusting of spraypaint.

In the next part I will be talking about the baseboard, describing my methods for staining woodwork, and a ‘generic’ or stylized treatment for the brickwork.

 

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1:10 scale furniture models

 

David Neat, 1:10 scale furniture models in photoshoot set, July 2017

I was recently asked by The New Craftsmen gallery in London to make a series of 1:10 scale models of a new furniture collection they were producing, conceived by the stylist Sue Skeen. The accurate models were meant to serve as a ‘portable collection’ to help show the range to customers and as publicity objects before the actual pieces were ready. The models were used in a photoshoot for World of Interiors magazine and were to be presented during the London Design Festival.

The image above is one from the photoshoot, for which I was asked to make a large model ‘set’ consisting of three distinct rooms with very bold, oversized decoration but including some realistic accessories such as doors, light switches and ‘retro’ radiators. These included the re-creation of a vintage fireplace as direct homage to the artist/designer Peggy Arnold whose work was one of the inspirations for the collection.

David Neat, 1:10 scale funiture models in photoshoot set

What had to be sorted out first was a reasonable scale in which to show the pieces to best advantage while still keeping them easily portable. At first 1:6 scale seemed reasonable, the size that Vitra use for their chair model collection .. but although that might work well for chairs, some of the new furniture pieces were over 2 metres long .. too bulky at 1:6 to carry many of them around, so we had to go for 1:10 scale.

David Neat, 1:10 scale model of 'Trunk' table with oak top, Inglis Hall and Sue Skeen

One of the next most interesting challenges was deciding how the range of different surfaces would be represented, particularly in terms of the scale. With surfaces it’s acceptable to play with scale up to a point .. in fact many surfaces wouldn’t ‘read’ well enough at a small scale so they need some exaggeration. A natural way of doing that for wooden subjects is just to use the actual wood. For example the table above has an oak top so I’ve used good quality oak veneer laminated onto a Pvc base. Oak veneer is too brittle for wrapping round the curved edge so here I used ash veneer instead. For this collection I had to do quite a lot of careful veneering to give the effect of solid tops or legs, because woods such as oak, ash, sycamore or Douglas fir are not available in ‘model friendly’ thicknesses apart from veneer. 

David Neat, 1:10 scale model, 'Trunk' table with oak top, Inglis Hall and Sue Skeen

David Neat, 1:10 scale models of 'Stick' tables, Inglis Hall and Sue Skeen

Likewise, the specific Formica pattern intended for these tables would have appeared too nondescript at a dutiful 1:10. On the other hand though, using the actual Formica wasn’t an option either .. impossible to work with, and in any case too bold at 1:1 .. so in the end I made my own graphic version of the pattern and printed it at a size I felt was right. I sealed this within acetate ( see later for technique ) which I rubbed with fine abrasive cloth to give the right ‘satin’ surface.  

David Neat, 1:10 models of 'Stick' tables, Inglis Hall and Sue Skeen

Representing a rushwork seat turned out to be simpler than I’d thought. I found that I could get quite a good suggestion by embossing/carving into 5mm foamed Pvc .. the material I turn to for solving just about everything! Once patterned I undercoated in a dark, warm grey acrylic and dry-brushed the lighter rush colours over.

David Neat, 1:10 scale model of bench with rushwork seat, designed by Sue Skeen and The New Craftsmen

David Neat, detail of 1:10 scale model, bench with rushwork seat. Designed by Sue Skeen and The New Craftsmen

For both the marble and the terrazzo tables below I was able to utilize methods I’d tried for the first time in an earlier job this year for The New Craftsmen and Christies. The marble effect here is a photo image printed on inkjet transparency film (also known as OHP film or ‘printable acetate’). The marble intended for the real table was a specific type called ‘Bianca Eclipsia’ and the supplier’s website had a number of usable images, and in this case it made sense to adjust one to the right 1:10 scale. The makers of transparency film recommend waiting 10mins for the ink to dry but in practice I’ve found that it takes much longer, like a few hours, before the ink is properly smudge-secure.

The marble top was to be 30mm thick in reality so I’d cut and shaped a piece of 3mm Palfoam (foamed PVC). After the image had dryed I lightly spraymounted it on the inked side (using the stronger 3M DisplayMount), pasted it firmly on the Palfoam, and carefully trimmed round the edge. It’s difficult to trim the acetate exactly around curves, even with a new scalpel blade, so I usually cut as close as I can and finish off by sanding with P120 sandpaper or finer. Sanding has to be done just in the downward direction (i.e. downward from the top surface) otherwise the acetate film will lift at the edges. With the acetate attached ‘smooth side’ up the image is now perfectly sealed within. That’s all fine now, if you want a glossy, highly polished surface, but most marble has a more tastefully subdued one .. as if frosted. This can be achieved by sanding the acetate either with fine ‘wet and dry’ paper’, decorators’ sanding pad or something else finely abrasive like the rough layer on a kitchen sponge. Now it feels even more that the marble pattern is coming from within the surface .. rather than lying dead on top like paintwork!

If evenly sprayed the acetate will remain secure on the surface, especially if there are no protruding edges left to catch. If in doubt, both the image and the base can be lightly sprayed at the same time for extra adhesion. I realized though that this method wouldn’t work for surfacing the edge .. a 3mm strip of acetate would never hold! I’d done some experiments before where I’d printed images on regular matte coated inkjet paper, sticking them ink side down on PVC, and washing/rubbing the paper part away. I found that the image was left almost completely on the PVC .. preserved in the chalky coating which had remained firmly stuck to it. So I filled in the marble pattern around the edge of the top that way .. printing more of the same on matte coated paper; cutting thin strips of it; pasting those ink side down along the edge; trimming the excess; soaking/rubbing off the paper.

Transferring images 'ink side down' comparing white and black bases

Above is one of the first tests I made of this method, comparing the effect (using a photo of treetops) of transferring onto white and black. What remains of the image after all the paper has been removed is semi-transparent .. but I was surprised at how much of the detail and colour still came out against black. Especially if a strong glue is used e.g. 3M DisplayMount or PhotoMount, the image is very secure .. hardly possible to scratch it off even!

Going back to the inkjet transparency film for a moment .. I had used the one sold at Ryman’s, A4 size and 100microns thick (which I think they all are). Ryman’s seems to be changing their products now, so I’ve put a link here to the same material from PhotoPaperDirect. Wherever they’re from these sheets cost between 50p – £1 each.

http://www.photopaperdirect.com/products/A4-Inkjet-Overhead-Transparency-Film-OHP-Film.html

David Neat, 1:10 scale model, marble table, designed by Sue Skeen and The New Craftsmen

David Neat, 1:10 scale model of marble table, designed by Sue Skeen and The New Craftsmen

I went into such detail describing the ‘print transfer’ method I used on the marble table edge .. because I then used it to create this ‘terrazzo’ table model below. Like all the table-tops here and many of the other elements, the basic form was made out of Palfoam ( or Palight if it needed to be a bit tougher). The ‘look’ of the table-top and the choice of marbles and granites were fairly well defined by the client, though an actual table was yet to be made at that time. I colour-printed a range of images; chose the best areas and drew the shapes on the unprinted side; pasted each piece in place printed side down; soaked and rubbed off the paper. It’s important to remember that this is likely to work best on a white base and I should note that sometimes definition and colour may be a little subdued because we’re seeing the backside of the ink, as it were, soaked into a minutely thin chalky layer.

After the surface was cleaned up and dried I emphasized the edges of each shape with a slight, embossed line. In the real table these would probably be completely flush, so this is another of those little ‘enhancements’ to realism, and to clarify that it’s more than just a printout.

David Neat, 1:10 scale model, 'terrazzo' table, designed by Sue Skeen and The New Craftsmen

David Neat, 1:10 scale model, 'terrazzo' table, designed by Sue Skeen and The New Craftsmen

My process of veneering

The best sources I found for a wide range of wood veneers were Vale Veneers woodveneeruk.co.uk and Wood Veneer Hub thewoodveneerhub.co.uk. Vale Veneers had the smaller range but a handful of common woods in particularly ‘flexible’ paper-backed form, c. 0.6mm thick. This was the type I was hoping for because it generally lies flatter and can be stuck down evenly without using a lot of pressure. I had imagined paper-backed veneer might be pricey but the cost from Vale Veneers was generally about £3.50 per sq foot. Originally the remit from The New Craftsmen included pieces in the less common sycamore and Douglas fir but these were available from The Wood Veneer Hub for a similar price though not paper-backed.

I made the basis (that is, the underlying material of each piece) of this oak ‘settle’ from Palight foamed Pvc. Each piece would then be clad on both sides with 0.6mm oak veneer. The visible edges would also have to be clad and this slight dimensional difference had to be foreseen and compensated for when cutting out the Palight pieces .. there’s a lot of searching, logical thought going into this but that’s what I most enjoy, even though I might not be the best at it sometimes! Oak is not very pliable even in veneer form so for covering the curving edges I had to use ash veneer .. the difference in tone should not be so noticeable at this size and if it is it can always be tinted to match. The same applied to the birch dowel used for the legs.

David Neat, 1:10 scale model of oak settle, designed by Sue Skeen for The New Craftsmen

The correct order for cladding is .. edges first, and then faces because they’re more visible. It means that any join-lines will be on the edges where they blend in better with the other edge lines. In the event of visible gaps these are much easier to fill and disguise if they occur on the edges. For the edges I cut long strips wider than needed and, surprisingly, in the direction of the grain .. normally this direction is the least flexible but I found that ash veneer could do it and when I’ve tried thin strips against the grain they just didn’t look right. After I’d pulled, glued and pressed the edge strips in place I needed to trim them near with the scalpel and finish off with a sanding plate (i.e. a thin piece of wood or plastic with P120 sandpaper attached). I did the same with the face cladding later.

I used superglue throughout. Both on the edges (applying to the plastic, moving along bit by bit) and on the faces (applying a rapid network of thin-ish lines to the plastic, especially the outline, and pressing all at once).

David Neat, 1:10 scale model of oak settle, designed by Sue Skeen for The New Craftsmen

All the tables were designed with ‘quadrant’ profile legs .. two sides of a square on the inside and a 1/4 circle curve on the outside. This was a very pleasing shape with also a lot of variety to it when seen from different angles. Most of the tables had painted legs and frame, so I shaped a prototype leg, made a few moulds and cast them in resin. However, the table below was to be solid Douglas fir, top and legs, so I had to mould and cast a thinner versions and veneer them .. hoping that I could get the veneer to stay with the curve. As it happens this worked fine mainly thanks to the effectiveness and speed of thin superglue in sticking wood veneer to PU resin, especially since the Oregon pine (the only available version of Douglas fir) fought a bit against bending.

David Neat, 1:10 scale model of Douglas fir (Oregon pine) table, designed by Sue Skeen for The New Craftsmen

Protecting model wood

Much as one might like to in order to preserve its naturalness, there’s no way that a wooden model can be left untreated if it’s going to be handled. It absorbs natural  grease and dirt from the fingers, this is turn attracts and fixes dust, and in no time the wood appears grubby. But the wrong choice of treatment can be just as demoralising!

David Neat - tests for best clear, matte wood varnish or sealant - June 2017

I wanted a coating that would hardly change the appearance of the untreated wood, certainly not make it visibly darker. Also, I couldn’t afford that the treatment would have any permanent warping effect on the veneer as some of the elements were quite thin .. and this can often happen when a water-based medium is used.

I did a number of tests with different clear ‘varnishes’ including oil; spirit-based matte and water-based matte.  In the end there were two very different mediums that did exactly what I’d hoped for .. RustOleum Clear Sealer which is water-based and OsmoColor Dekorwachs which has a wax/oil base (this is the German version from more than 20 years back when I was living there. Names and packaging  may have changed but Osmo products have remained essentially the same).

David Neat, 1:10 scale model of ash bench, designed by Sue Skeen for The New Craftsmen

David Neat, 1:10 scale model of ash bench, designed by Sue Skeen for The New Craftsmen

I painted the RustOleum wood sealer as thinly as possible and undiluted on sample wood swatches. There was a little curving but within a couple of hours these were perfectly flat again. Also, after drying I couldn’t even tell which pieces of sample veneer I’d painted! I knew there wouldn’t be a warping issue with the Osmo wax/oil, but I’d expected significant darkening. The next day after proper drying the change in tone of the wood was only very slight! Because wax/oil penetrates into the wood more than water-based sealer and different woods will react to this in different ways, there could be more darkening with some of them. A solution to this is to add a very little amount of white, preferably using the ‘transparent white’ version of the same medium if there happens to be one.

David Neat, wood treatments compared - RustOleum clear sealer and Osmo wax

Using gloss paints in models

I was never a fan of using the ‘older style’ .. i.e. spirit or oil-based .. gloss paints in models because there were always problems! Here’s the shortlist: – unless the surface to be painted is immaculate, every imperfection becomes very noticeable; unless this surface is evenly primed or suitable for the paint the ‘gloss’ that results after drying can turn out patchy; gloss paints used to be notoriously unstable, needing religiously thorough mixing beforehand and sometimes failing to dry properly even then; during a lengthy drying process the surface is bound to catch some dust particles whatever the precautions.

On a more important level than all that hassle, there was my emerging notion that ‘gloss’ just doesn’t translate in scale anyway! That something a bit more subtle and light-friendly .. like ‘satin’ .. conveys ‘glossiness’ better in the smaller scale?

However, part of my brief was to use the gloss paints that would eventually be used on the real items .. a good idea, yes, but only in terms of colour matching as it turned out. The new breed of acrylic water-based gloss paints may be progressive in some important ways .. but they’re certainly not for painting models! They .. at least, the ones I was given .. are thick, not opaque enough, non-levelling and they congeal so fast when brushed on that it’s difficult to even out the paint layer .. even on small areas! In spite of firming up far too quickly, they also seem to take a long time to ‘dry’ fully! I found this out when I took a handful of painted swatches to a meeting .. they had stuck together, a full week after painting them! I managed to make the surfaces look reasonably clean and streak-free in the end .. but it took a lot of effort. I made each item of painted furniture in Palfoam Pvc which I ‘grained’ very slightly by drawing P120 sandpaper in straight lines across (to suggest painted wood). I had to prime the Pvc first and because the gloss paints had too much transparency I used Humbrol enamels as an undercoat, mixing as near as I could get to the final colour. The adhesion between Pvc/enamel and enamel/acrylic was first-rate!

David Neat, 1:10 scale model of painted settle, designed by Sue Skeen for The New Craftsmen

I had to make two versions of the ‘Peggy’ chair, as it was called .. one plain ash and the other gloss grey. As with the settles the legs are dowel but needed to be 4mm diameter and this doesn’t normally exist! Luckily there was just one online source that did have this size but in ramin wood.

David Neat, 1:10 scale models of 'Peggy' chairs, designed by Sue Skeen for The New Craftsmen

Lastly I wanted to include here a picture of the ‘Peggy Arnold’ fireplace on its own. I was fond of the way this looked! I used an original Peggy Arnold pattern, printed on gloss photo paper in grey tones, for the tiling. The last promising discovery was that Marabu GlasArt glass paints make excellent wood varnishes! Here I have used the ‘Brown’ as it came (they can be thinned with white spirit). One coat brushed then evened out with a tissue will create a good matte cover, but after this first coat has dried for a day a second will give a nice, even silk/gloss.

David Neat, 1:10 scale model of 'Peggy Arnold' fireplace

 

 

An essential model-making tool

David Neat, essential model-making tools, solid metal guide blocks

I’ve always made a point of recommending these! I don’t know how I would get things done these days without solid, right-angled steel blocks .. to use as guides for construction, for gluing against or weighting down. I’ve noticed though that my enthusiasm has varied between ‘absolutely essential’ to ‘very useful’. The reason for my occasional reticence is that up to now I haven’t been able to recommend a reliable source .. but now I can! I’ve just received these .. seven in all .. which I ordered from  https://www.metalmaniauk.com/ because I’ve always wanted to use them on my courses.

In the past I had assumed that the custom cutting charge would be too high but these seven cost me all inclusive £33.10. I chose the ‘Bright Flat Mild Steel’ which has the essential square ‘sharp’ edges; and the bar type ‘1 x 3/4’ inches, which I felt was the smallest limit before the blocks lose the necessary weight; and I decided that a 15cm length would be fine for most tasks. Here is the specific link to the product

https://www.metalmaniauk.com/Steel/Bright-Flat-Bar/Bright-flat-mild-steel-bar-1-x-34.aspx

MetalMania do not have a minimum order so one could buy just one of course. This would cost £3.80 for 15cm, but postage within the UK seems to be fixed at £6.50 up to a few kilos so it would make more sense buying two or three.

A recap on why they’re so useful

I’ve written about them many times both here and in my book. The most useful application is when gluing two pieces on edge, applying glue to one and then positioning the two pieces together against the metal block so that one can be sure of getting a clean and straight edge.

David Neat, Using metal blocks to aid construction

It is especially important having this firm ‘stop’ when using superglue because it has to be right first time and .. more importantly .. it doesn’t matter if superglue squeezes out onto the metal because it won’t stick to it strongly. The piece just needs to be ‘popped’ off. You have to remember to scape the metal surface clean with a scalpel occasionally because it can build up. If you have two blocks, as below, you can construct perfect corners!

David Neat, Using metal blocks to aid construction

Blocks of any kind with enough length are also invaluable when trying to layer thin strips on top of each other i.e. for these decorative mouldings.

David Neat, Using metal blocks to aid construction

They can also be useful for holding elements in place while gluing, as below where I’ve taped a curving piece of styrene between them to hold it in that position while I brush plastic solvent into the join. The same can be done with thin superglue.

David Neat, Using metal blocks to aid construction

 

Finally, and by the way .. I feel it’s worth noting that dealing with MetalMania was a smooth experience with a couple of pleasant curiosities! In the first place their website is different from what I’m used to when trying to get hold of heavy-duty industrial materials .. bright, friendly and simple to understand. Delivery was trackable and came within 4 days using Parcel2Go .. not the usual kind of breathless courier at the door but three teenage girls! I didn’t find out why because they didn’t seem to want to be quizzed about it. On the MetalMania website they state under the heading ‘Animal Policy’ that ‘It is this companies policy NOT to supply any organisation or individual involved in animal experimentation of any kind’. Currently on the website is also a condolence message for those affected by the attacks in Spain which is accompanied by this photo. I don’t know what to make of it .. but it’s really got me thinking!

condolence message

 

Where to look for ready-made forms

I’ve compiled a new page List of sources for ready-made forms which I’ve put in the Materials section under ‘shaping’. If you’ve ever searched for something just the right size for puppet eyeballs, wondered whether you can get mini ‘taxidermy’ domes or whether there’s maybe a ‘magic’ way of making model bottles, you may appreciate this list and some of the tips included. I’ve copied the introduction and a short extract from the list here.

inside 4D modelshop, London

There are many instances where being able to take advantage of a pre-formed shape could not only save a lot of time but also opens up exciting possibilities .. promoting the work beyond one’s technical means. But often the thought of having to take the ‘time out’ to hunt down the right something is a dissuader, as is the notion that somehow using something ready-made is a bit of a cheat! I started this list originally to encourage myself to make more use of the ‘ready-made’ by having a quicker overview, but also because whenever I came across useful ‘things’ I never knew where to note them down for the future.

I’ve tried to divide the list into categories as far as possible, so here is the ‘Table of Contents’:

Discs especially small, in various materials; Domes flattened or semi-circular, whether thin/hollow or solid, including taller display domes; Spheres or balls whether hollow or solid; Ovals in 3D; Wheels and cogs; Teardrop shapes; Cones mainly solid; Straight dowels, rods, cylinders i.e. solid, circular in cross-section; Small rigid tube mainly plastics and metals; Larger round tubes including cardboard and plumbing supplies; Patterned rod or tubing because there are some; Curved or bendable rods, flexible tubing to include foams, Pvc and silicone, cable supplies; Rings; Trumpets, funnels etc; Eggs wooden or polystyrene; Blocks  ‘off the shelf’ and lastly Other forms for the rest.

Each section is organised by supplier and the underlined product titles are from the online catalogues so you can find them more easily in searches. The fact that this wording is sometimes specific and unpredictable is the reason why I’ve bothered to make a separate list in the first place .. after all, one could just do a Google search as/when needed .. but unless one uses many different search words some possibilities would always be missed! Prices were last updated in May 2016, all adjusted to include VAT. I haven’t just listed the cheapest, rather those suppliers who seem to offer the most useful range. If you have anything to add to the list your suggestions will be welcome!

 

Trumpets, funnels, ‘bottle’ shapes and superglue dosers

Heatshrink tubing or ‘sleeving’ is made from polyolefin plastic ( i.e. polyethylene, polypropylene ) and commonly used in electronics/electrics for wire insulation or bundling. It shrinks uniformly when heated with a heat gun, usually in the ratio 2:1 meaning it becomes half as small. It comes in different diameters and the clear versions are ideal for making small-scale ‘bottles’. Finer heatshrink tubing also makes very good ‘dosers’ for superglue work, to attach around the existing nozzle if more precision is needed (Poundland includes a few already in their packs of superglue bottles). I should note though that you will need a heat gun (preferably a small one) to shrink the tube uniformly as shown below.

clear-heat-shrink

www.cablecraft.co.uk

Easi-Shrink’ Heatshrink Sleeving available in small diameters 1.2 – 6.4mm, and bigger sizes up to 100mm. 3.2mm diameter is ideal for 1:25 scale bottles (since these are commonly 8-9cm wide). Price for clear 3.2mm £0.83 per metre.

heat-shrink tubing

www.e-deala.co.uk

1ml or 3ml pipettes e.g £10.99 for 500 3ml pipettes

1ml and 3ml pipettes

I’ve included these because there are sections that can be cut to make reasonably good model bottles (from the thinner 1ml) or glasses depending on the scale you need. Bear in mind that this polyethylene plastic is never ‘glass’ clear, it has a slight frosting.

www.modelshop.co.uk

Plastic funnel set 50, 75, 100 and 120mm diameter £1.85

plastic funnel set

www.partypacks.co.uk

Plastic party glasses are a good source of shapes, but online suppliers don’t usually list measurements except capacity in ml.

Clear Brights Plastic Champagne Flutes’ 148ml (like image but clear, uncoloured) £4.14 pack of 10

plastic flutes

 

Template drawings for furniture model-making

At last I’ve had the chance to clean up and improve some of the furniture drawings I’ve always used for model-making workshops, and so I’ve gathered them together as Template drawings for furniture model-making in the Methods section. The page includes this mid-18th C ‘rococo’ armchair which has always been popular .. though a bit challenging to make at 1:25! I’ve drawn most of the plans and reproduced them at 1:10 scale for greater accuracy though some simpler ones, such as those for ‘folded’ furniture using stencil card, are 1:25 scale.

1:10 scale rococo armchair drawing

I think I’ve sorted out the problem that has been occurring of ‘thumbnail’ images not responding i.e. normally a better quality image can be opened by clicking on the images here, but I’ve only just found out that it hasn’t been happening for recent posts. So hopefully if you ‘click and save’ any of the drawings you’ll get the size they’re supposed to be. I’ve given the source resolution so that you can compare it and I’ve also listed key measurements in the text so that you can check accuracy in the printout.

Template for making 1:25 scale folded chair in stencil card

 

 

Making a panelled door in stencil card

Recently I was asked by a friend to cover for her on the ‘Foundation in Art & Design Diploma’ course at Central Saint Martins. The day was intended to deal with aspects of model-making relevant to a project the students are currently working on. Each is designing an enclosed space with particular emphasis on the doorway leading into it, so we took the opportunity to focus on doors and the different methods of simulating surfaces.There was no budget available for materials so I had to devise a short practical using whatever small leftovers I could spare. The most promising idea seemed to be working with stencil card since I had a lot of small pieces, and stencil card was available at the CSM college shop if the students wished to take it further.

making a panelled door in stencil card

So I spent a bit of time working out the easiest way to make the traditional panelled door above. I’ve already looked at layering stencil card to create the wall panelling effect below and I also discovered some time ago that stencil card could be scraped with sandpaper leaving a fairly convincing ‘woodgrain’ effect, but I hadn’t combined them much. Also, the panelling below was made by carefully marking out and cutting the layers separately, then just as carefully aligning them while gluing. This is quite demanding! .. I wanted to make it more achievable.

using stencil card for wall panelling and windows

The improved method involves four layers (but as yet only dealing with one side) and the only ‘graining’ done is on the top layer and on the bottom layer where the ‘panels’ are seen. Everything is led by the ‘second layer down’ .. the one shown first in the line-up below, on the left. This is the one which needs to be carefully measured, marked out and cut. These doors are 1:25 scale and I’ve rounded off the UK average for a traditional interior door as .. 198cm high by 76cm wide. If you want to be either very specific or if you’re working in feet and inches, it’s properly 6′ 6″ by 2′ 6″! What happens within that outline is more a matter of taste .. there are no similar ‘standards’ for the size or arrangement of the panels. I’ve cut the first piece of card according to what looks right, but also I’ve observed with 4-panel doors that the top pair are usually longer than the bottom and there’s most often a broader strip across the base of the door for strength. The long thin panel in the middle is not meant as a letter box but it could house one, and the handle or doorknob would be positioned roughly halfway up the door which makes it on average a little less than 1 metre up.

stages in making a panelled door in stencil card

The drawing below should print out on A4 at exactly 1:25 scale and if you’re using this design as a template only the first one needs to be traced or pasted, as I’ve said .. the others are just there to illustrate each stage of layering. It goes like this .. after the first is cut out it should be stuck down onto another scrap of stencil card leaving a small margin around it. Spraymount works well, as long as you don’t intend to treat afterwards with a spirit-based medium because this will dissolve the glue .. otherwise superglue applied with care (very thin lines or dots) works perfectly. Pva wood-glue will grip but not bond very well with the stencil card surface. Trim around the outline of the door using the top stencil layer as a guide then judging by eye cut out all the panel areas a little inside the top-piece outline all around making a little ‘step’ .. as illustrated by stages 2-3 above and below. It may take some practise to get an even strip but it’s too slight to measure/mark. I’ve used the smallest division on the 1:25 scale ruler as a visual guide.

stages of making door using stencil card

This piece is then stuck onto another piece of stencil card and the outer edge trimmed again as before .. before doing this the stencil card which comes underneath needs to be ‘grained’ first because this will show. For these examples I’ve used a small piece of 120 grit sandpaper to grain, pressing firmly down and straight along, using the edge of a metal ruler as a guide. Once all three stencil card layers are stuck together and the door outline trimmed around once more (stage 4 in the line-up above), the fourth and final layer comes on top. This one is applied differently though, in separate pieces. It has to be because the grain of each strip must follow its longest edge .. essential for a convincing look! The task becomes a bit like marquetry in wood, but much easier because the stencil card is easier to cut. I grained a much larger piece of stencil card first and cut the strips from it, and I made these a little narrower to form a final ‘step’ around the panel areas.

colouring stencil card door with ProMarkers

There’s almost no end to what one can use to stain or paint stencil card because, in spite of the linseed oil waterproofing, it will accept both water-based, oil or spirit-based media. I’ve detailed a number of these already in my post February 2015 The art of alternative staining where I’m working with wood, but all will work well on stencil card. In fact many will work better because although a fine-grained wood is often the best option for a good ‘wood’ look when it stains well, it can also be difficult to eliminate the scattering of light specks where the polish or stain has failed to penetrate. Generally stencil card accepts stain a lot better and more evenly.

For the two samples above I used Letraset ProMarkers. The alcohol ink in these covers well and dries quickly, though it stains so well that the lighter scratches tend to disappear. These are ideal if you want something subtle. The ProMarker ink itself dries matte but there is a very slight sheen from the stencil card.

staining stencil card with Marabu GlasArt

If you’d like more shine or even brighter colours another option is using Marabu Glasart glass paints above, or ‘vitrail’ as they’re often labelled. These are spirit-based and, in the case of the Marabu, can be diluted or cleaned up with white spirit. One has the choice of either a silky or a glossy finish dependent on how much is applied. Here for example I brushed the vitrail on thinly and also went over with tissue and cotton bud to remove the excess collected in the raised edges .. if I’d just left it the effect would have been more glossy. Vitrail doesn’t work well as successive coats, because like shellac a further coat just starts to dissolve the one underneath and the results could be patchy.

colouring stencil card with shoe polishes and wood-stains

As shown above, if you’re intending a worn or ‘distressed’ effect I would recommend either a liquid shoe polish (which are almost always water-based) or a water-based wood varnish. These will tend to sit more on the surface rather than staining, and with each of these samples I started to rub or gently scrape after only a few minutes, before fully dry .. achieving a properly ‘chipped’ look fairly easily. These are, from left to right, Wickes ‘Quick-dry Woodstain’ mahogany; Cherry Blossom brown shoe polish, Kiwi ‘Wax Rich’ black shoe polish. Stencil card will warp a little with water-based media but not as much as other cardboards and, once dry, it is easier to bend carefully back into shape.

Conventional wood-stains also worked well .. both spirit and water-based. The middle one has a light coat of Colron ‘Georgian Oak’ and to the right I have used a water-based ‘Dark Oak’ wood-stain from Flints in London. The spirit-based stain has remained fairly matte whereas the water-based dried to a slight sheen. Spirit-based stains will also infiltrate quickly to the other side, even when more than one layer .. worth bearing in mind if this will be seen.

colouring stencil card with shoe polishes and wood-stains

Lastly, for the pale sample to the left I tried Osmo Dekowachs ‘Transparent White’. This is a specialist wax-based paint I was using in Germany which I still have some of, though these paints are also available in the UK. Like Humbrol enamels I’ve found that these paints will fix on almost anything. The first coat of Dekowachs is always matte and one has to build up a shine with further coats.

Poor substitute stencil card

For those of you interested in what I do with stencil card as I’ve described in my article Working with stencil card under ‘constructing’ in the Materials section, I have to warn you that there’s an inferior substitute appearing in some of the UK sources I’ve listed. The proper, traditional material I’ve always relied on is an attractive honey/ochre colour, is 375 microns thick and smells very noticeably of linseed oil. I first noticed the ‘poor’ stuff at 4D modelshop who, I’m assuming, had been forced to accept what started to come from their usual supplier, but now I’ve seen the same change in University of the Arts college shops which suggests that this may become more widespread. The inferior type is a darker, dullish brown, seems a little thicker; and has a very different and far less agreeable smell. More importantly .. it is a little tougher to cut, certainly doesn’t cut as sharply, frays at the edges much more easily, and the method I recommend for ‘graining’ the surface with sandpaper just doesn’t work! The surface merely disintegrates, becoming very ‘wooly’ and loses further definition when stained or painted. This stuff may still offer some advantages over more regular thin white card, for its strength and for basic cutting of delicate forms .. but in other respects and for my purposes it’s pretty useless!

comparison of different stencil card types

My advice is to speak directly to the supplier if you are buying stencil card online .. check for sure that it is the standard ‘honey’ colour and not the dull brown, and that it is 375 microns thick (because there’s also a thinner 250 micron version sometimes sold in its place). The other day I bought the proper stuff from Flints in London, and I’m fairly sure that A.S.Handover and Wrights of Lymm will still be supplying it. These three also offer by far the best prices!