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< prev - next > Manufacturing handicraft process industries Pottery and ceramics clay based tech book (Printable PDF)
Diagram 2. Moulds
a)
370 mm
b) 470 mm
hole in the ground and cover it with a mat. Cover
the mat with a small amount of wood chippings
to prevent sticking.
2. Mix and knead an even mixture of mud, dung and
water into a ball.
3. Repeatedly press a stone into the mixture to form
a bowl shape. Continue to do this adding more
material if necessary until the mould reaches the
dimensions given in diagram 2.
4. Once the moulds have been made they need to
be left to dry in the sun for 30 minutes.
5. Now work can start on making the pots. Once
again a small hole is prepared with a coating of
wood chippings.
6. The clay is kneaded into a doe like mixture.
Pic 43. The mould is turned over and the clay is pressed
on top of it.
16
CLAY BASED
TECHNOLOGIES
Pic 44. Using water and a stone the surface of the mixture
is smoothened.
7. The clay mixture is rolled flat and then placed
on an upside down mould. The thickness of
the mixture should be in the region of 10 mm.
Following this the mixture is spread over the
mould as far down as the moulds widest diameter.
Using a flat stone and some water the surface is
smoothed out, see pictures 43 and 44.
8. Once the round shape has been formed the walls
can be extended to the designated height. This is
done by removing the mould and adding clumps
of the mixture by hand to the wall.