User:AstridvanLoon

Astrid van Loon | 0896899 | DBKV VT2B | Email: astridvanloon_1991@hotmail.com

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Etching

Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in the metal. I really wanted to try this method for a pretty long time, and i thought now was the perfect opportunity. It is a method of print making, but i feel like the copper plate itself is already very special. I love how the plates of old master pieces often still exist because the material will last very long. I first tried the basic method. Using wax to cover the plate and scratch that off. Then i had to soak the plate in acid so it was engraved because the parts that are not covered with wax will dissolve.

History of the technique

The process as applied to printmaking is believed to have been invented by Daniel Hopfer (circa 1470–1536) of Augsburg, Germany. Hopfer was a craftsman who decorated armour in this way, and applied the method to printmaking, using iron plates (many of which still exist). Apart from his prints, there are two proven examples of his work on armour: a shield from 1536 now in the Real Armeria of Madrid and a sword in the Germanisches Nationalmuseum of Nuremberg. An Augsburg horse armour in the German Historical Museum, Berlin, dating to between 1512 and 1515, is decorated with motifs from Hopfer's etchings and woodcuts, but this is no evidence that Hopfer himself worked on it, as his decorative prints were largely produced as patterns for other craftsmen in various media. The switch to copper plates was probably made in Italy, and thereafter etching soon came to challenge engraving as the most popular medium for artists in printmaking. Its great advantage was that, unlike engraving where the difficult technique for using the burin requires special skill in metalworking, the basic technique for creating the image on the plate in etching is relatively easy to learn for an artist trained in drawing. On the other hand, the handling of the ground and acid need skill and experience, and are not without health and safety risks, as well as the risk of a ruined plate.

What i did

Before i started i had to prepare my plate. I had to use fine steel wool and a piece of cloth and rub copper oil on to the plate till the surface was super shiny and smooth. With a hand file i beveled the edges of the plate. This is because otherwise the sharp edges can damage the paper when it goes trough the press. After that i degreased the plate. I did that with soy sauce and a piece of spunge. Then i washed the plate under running water, and put it in an oven for a few minutes to dry. When the plate was fat fry i was started with etching the plate. The design i already make earlier. After 3 hours i was done with the design. I first tried the basic method. I used wax to cover the plate, baked it in the oven and scratch that off. Then i had to soak the plate in acid so it was engraved because the parts that are not covered with wax will dissolve. It was a very long proces because every time when you bring an other layer on the plate you needed to wait. First time 1 minut in they acid 15 minutes in the oven, second time 2 minutes in the acid 15 minutes in the oven, third time 4 minutes in the acid 15 minutes in the oven en the fourth en last step was 8 minutes 15 minutes in the oven. I also used the dry needle technique.

Carving daily objects

Carving in soap, create forms and you can use it as a mold to multiply the object.

Together with Simone and Marieke we carved 3 different soaps. After this we went to the ceramic station, where we greased the form with silicone to make a mold. While creating the mold we encountered some problems regarding the silicone layers needed to craft it. The first 3 'soft' layers of silicone were a succes and needed 24 hours to dry before the next layer could be added. While applying the fourth and last layer, which is the strongest needed to finish the mold, we found out that the last layer did not bind with the other layers. The soap and previous silicone layers had a chemical reaction which caused this.

Wood carving

Woodturning is a form of woodworking that is used to create wooden objects on a lathe. Woodturning differs from most other forms of woodworking in that the wood is moving while a stationary tool is used to cut and shape it. Many intricate shapes and designs can be made by turning wood.

There are two distinct methods of turning wood: spindle turning and bowl or faceplate turning. Their key difference is in the orientation of the wood grain, relative to the axis of the lathe. This variation in orientation changes the tools and techniques used. In spindle turning, the grain runs lengthways along the lathe bed, as if a log was mounted in the lathe. Grain is thus always perpendicular to the direction of rotation under the tool. In bowl turning, the grain runs at right angles to the axis, as if a plank were mounted across the chuck. When a bowl blank rotates, the angle that the grain makes with the cutting tool continually changes between the easy cuts of lengthways and downwards across the grain to two places per rotation where the tool is cutting across the grain and even upwards across it. This varying grain angle limits some of the tools that may be used and requires additional skill in order to cope with it.

In spindle turning, the wood is fixed between 2 points. The spur center digs into the wood and is powered by a motor. The other, a hard center or a live center may be a point or set of points in the tail-stock. In face plate turning, the wood is secured with screws to a faceplate or in a chuck or jig. the tail stock and a center may also be used for added support on large pieces with a faceplate. Most bowls, platters and many vessels are face plate turned, while pens, furniture legs, spindles, and some vessels are spindle turned. The method used may differ depending on the shape of the blank and the technique of the turner, and both methods may be used on the same piece.

When wood is cut in such a way that the fibre being cut is not supported by the fibre below it, it tends to separate and tear. This "tear out" exhibits a rough, highly damaged looking surface texture and greatly reduces the value of any product exhibiting it. The direction of cut is different in spindle turning and faceplate turning because cutting in the wrong direction can cause tear out. Spindle turning cuts are made from high points toward the axis on the outside of the piece, and from the axis toward the outside when hollowing. When faceplate turning, the opposite applies.

History of the technique

The origin of woodturning dates to around 1300 BC when the Egyptians first developed a two-person lathe. One person would turn the wood with a rope while the other used a sharp tool to cut shapes in the wood. The Romans improved the Egyptian design with the addition of a turning bow. Early bow lathes were also developed and used in Germany, France and Britain. Sometime after the turning bow was developed, a lathe was created that spun when a lever was pumped by hand. Early lathe workers would sometimes use their bare feet to hold cutting tools in place while using their hand to power the lathe. In the Middle Ages a pedal replaced hand-operated turning, freeing both the craftsman's hands to hold the woodturning tools. The pedal was usually connected to a pole, often a straight-grained sapling. The system today is called the "spring pole" lathe (see Polelathe). Spring pole lathes were in common use into the early 20th Century. Up to this point in history, the lathe operated in a reciprocal manner with the workpiece rotating back and forth as the drive mechanism reset to the loaded position in preparation for the next stroke. This required the turner to alternately apply the tool as the blank spun toward the operator and remove it from the blank as it spun away from him. A two-person lathe, called a "great lathe", allowed a piece to turn continuously (like today's power lathes). A master would cut the wood while an apprentice turned the crank on a huge wheel, often several feet in diameter.

Belt driven lathe The term "bodger" stems from pole lathe turners who used to make the chair legs and spindles. A bodger would typically purchase all the trees on a plot of land, set up camp on the plot, and then fell the trees and turn the wood. Bodgers would set up their lathes in a stand of trees, cutting all of the trees around them. Once all the trees in the immediate vicinity were consumed, the bodger would move his lathe to a new spot within the same wood, to repeat the process. Interestingly, bodgers sometimes used lathes that did not have integral spring pole mechanisms, but rather placed their lathes under a standing tree with a springy branch that was suitable to use as the drive mechanism. This made for a more portable type of lathe for the bodger. The spindles and legs that were produced by the bodger were sold in bulk, for pence per dozen. The bodger's job was considered unfinished because he only made component parts. The term now describes a person who leaves a job unfinished, or does it badly.

Electric lathe During the industrial revolution the lathe was motorized, allowing turned items to be created in less time. The motor also produced a greater rotational speed for the wood, making it easier to quickly produce high quality work. Today most commercial woodturning is done by computer-operated machinery allowing for mass-production that can be created with precision and without the cost of employing craftsmen. Despite this, there is still a demand for hand-turned products. Woodturning is also a hobby enjoyed by many people.

Modern professional woodturners are typically either "production" turners producing large quantities of functional pieces, or artistic turners producing smaller numbers of pieces, often enhanced after turning by carving, piercing, coloring, applying pyrography, gilding, or a number of other techniques to produce objects for the art market. From the 1930s, the field of wood turning grew from this hobbyist movement in the 1930s to fine artists in the 1970s, experimenting with super object forms and other fine craft concepts.[1] The Center for Art in Wood, founded in 1986 as The Wood Turning Center, houses a collection in Philadelphia with over 1,000 objects from international artists [2] as well as a research library and gallery.

What i did

Together with Simone we went going to the wood station. We didn't know how we need to use the wood turn machine so we asked for explanations about how we could use the machine. The supervisor was very helpful.

Workshop milling machine

The design: Before i started with working on the milling machine i need to make a design. I had already a design prepared for my end work in the program Adobe Illustrator. The design consisted of several lines which is not possible to use for the milling machine. The design had to be adapted and consist of 1 contour line.

Endwork

Making a Puzzle