TECHNIQUES


Marble Casting \ Over Clay
Bronze Casting
Drawing of Sculptures
Stone Sculpturing
















Marble Casting \ Over Clay


A. the work that is bulit from clay has to be devided by seperations lines

that are made of clay or thin metal ,that we can later exclude the clay out

from the negative.

B. on the sculpture we pour the cast , the density that

enables building the negative

layer 1 - very diluted , and after that we

mix the cast , antil it gets ruffer and than we

can work with it more acuertly .

it is recommended to use an alabaster cast .

C. wait antil the cast is hardent ,and only than it should be opend.

minimal waiting time is at least half an our .

put your hand on the cast and feel the heat that rises from the negative .

when the cast is hot , it means that the negative is getting hardent .

D. open the negative ,get the clay out , mesure its qauntity, this will be

the quantity that you will need .

E. take care of the negative , wash it , clean it , rasp it , immerse in water

the parts of the negative , and only after that close it.

tie it with metal strings and peices of cloth around the negative.

F. turn the work up side down , create a metal structure inside the

negative ,wich will be used as the main colom of the work.

G. prepare a diluted mixture densited like sower cream and cast it

inside the negative .

mixture should be third 'white cement' and tew

thirds of other matirials 'sand,marble,graind stone'.

H. shake the negative , to releace the the trapt air inside the negative .

I . leave the work for at least 4 days in them you will water it every day .

put a wet rag on top of the work.

J. release the work from the negative , put over it

a wet towel ,to let dry graduatly.

K. rasp the work :

1. a dry rasp with paper and machine .

2. wet rasp with rasping papers.

3. a rasp with dymonde cups .

the finish work should be smuth as marble .



Bronze Casting


due to its metlic proportys bronze casting enables

to create thin and hollow objects with movemnet sometimes

that stand on a tiny and delicate spot.

to the method of casting we call in the profetional language

" the method of the lost wax " .

A. the sculpture is made out of clay, cast, wood, or stone .

B. we create for it a robber mold .

C. we pour inside the robber hot wax and create the

figure of the sculpture of a thin layer of wax .

D. we take of the wax , fix it , smooth it .

the final care of the wax determens the condition

of the bronze, smooth or textured.

E. the sculpture from the wax gets in to a cermic oven

,and a cermic layer covers it.

F. the ceramic goes thrue a ceramic prosses.

the ceramic gets into a hot oven in a inverted way,

and the wax gets melted .

that's why we call it the "lost wax prosses".

G. inside the empty space that was created we pour the hot metal.

H. when the metal gets cool (it take one hour)

we brake the ceramic that seronds it and

clean it by sandblasting it .

I. we start to scrape the bronze , the prosses of the scrap

and level of the scraping determens the qaulity of the work .

the prosses take up to a month of work'

for an average creation .

a big work must be divided into sevral pieces and after

they are finished we weld them togather.

what is bronze ?

a segment of copper and tin and small amounts of other metals.

propertys

1. it is able to be procesed up to maximum accuracy.

2. it gives the creation a perfect finish .

3. it is srong and can stand a differnt kinds of weather .

4. has multipule colors in green and brown.

5. can be coverd with gold and silver.

other metals that can be used for casting sculptures in the same method:
lead
copper
brass



Drawing of Sculptures


the drawing of sculpture enable us to scan the creation

prosses when it is happening, the sculptors usualy dont

draw whole scenes, but clear description lines , as a way

to show and explain them .

sculptures are drawed for several reasons :

A. the will to acquire information , to edit researches in

the positions and structure of the human body.

the sculptor "ogust rodin " drew houndred of scaches

of the human body in a moment of relief or motion

with tiny lines in order to mesure the volume of the body.

B. the will to conserve ideas and to look for ideas in order

to design a special sculpture .

C. "Demonstration Drawings" with them the artist shows

to the client who ordered a sculpture how the sculpture will be .

these drawings usualy are made with complete details and

not only ,with segmented description lines.



Stone Sculpturing


marble - a name tht was dedicated to lime stone or

metamorphy dolomite stone that can be smoothed in

order to make them shiny .

that their strength will enable to built with them

and also to carve them .

the marble has many colors begining with gray

,red ,redish,yellow,pink,and green.

Famos Quarrys in the World

1. the greeks carved the aptentanon temples from

the quarrys pentelicon in atica , north east of athene.

2. famos quarrys were also in the paros island , one of

the ciklete islands in the egean sea.

the rome also carved there in the helenistic period of time.

3. in the renesans ,the italian carved in the town of carera in

the region toscany .

people are still mining marble from there also today.

the marble that comes from carera is exceedingly

white pure clear and was used as a major substence

in michael angelo works .

due to it proprtys it is easier to scalp more then a vulcanic rock.

the vulcanic rock, the granite and the basalt are hard

to sculpture with.

lime stones are the main substence for sculpturing

arround europe.