Historic notes on preparations

CONSISE NOTES ON PREPARATION OF GROUNDS, PRIMINGS AND OTHER MATERIALS. by Arthur Lucas Former Keeper of Conservation The National Gallery, London   In 1950 Arthur Lucas was invited by the Slade Professor, Sir William Coldstream to lecture and demonstrate the methods and materials of painting to Slade students, who previously (since the 1930’s) had been taught a course called Chemistry of Painter’s Materials, by Mr H Terrey from the department of chemistry. Lucas taught twice weekly lectures and the Methods and Materials Room in the basement of the Slade was established. The room, now a sculpture studio, had a double Read more

Paper: Watercolour Paper

Watercolour Paper Machine-made watercolor papers come in three surfaces: Rough Hot-pressed or HP Cold-pressed (or NOT). Rough watercolor paper has a prominent tooth, or textured surface. This creates a grainy effect as pools of water collect in the indentations in the paper. Hot-pressed watercolor paper has a fine-grained, smooth surface, with almost no tooth. Paint dries very quickly on it. This makes it ideal for large, even washes of color. Cold-pressed watercolor paper has a slightly textured surface, somewhere in between rough and hot-pressed paper. Watercolor paper differs from manufacturer to manufacturer, so experiment not only with the different kinds Read more

File Preparation for 3D printing at the Bartlett DMC

Basics The way you process your three dimensional data will depend on the 3D program you are using to model in. Different programs utilise different approaches to modelling, however, the following points need to be considered independently of your software type: Ultimately the data you supply needs to be in .STL format.  The three dimensional geometry created in your 3D program can be converted to this file format typically under the File–Export menu of most programs. All geometry to be 3D printed must be in three-dimensions. Any two-dimensional geometry will not be processed or built by the 3D printer. All Read more

Liquid Emulsion Technique

  Many  photographers feel somewhat restricted by conventional, commercial papers.  Surface textures are limited and do not always suit the artistic vision of the individual. One way around this  limitation is by using liquid emulsions, which can be coated onto many surfaces: paper, fabric, stones, tiles, wood, metal, and more. … PDF: Liquid Emulsion Technique

Glazes: an introduction

Glazes can be classified into two simple groups, which are earthenware and stoneware. These groups can also be classified by firing ranges for individual glazes. Earthenware glazes mature in the range 950°C to 1190°C, where as stoneware glazes fire in the range 1200-1300°C. Some crossover can occur between the high earthenware and low stoneware temperatures. For ease of selection sub-groups are arranged within these groups based on temperatures ranges. Other methods of grouping are based on colour or finish (e.g gloss, opaque, matt etc) or even speciality (e.g. raku). At Clayman we also include a third large group called Brush-on. Read more