Kupu Keramik


Welcome bin wilujeng sumping di blog Kupu Keramik with Natas Setiabudhi
. Blog ini berisi curhat ataupun sharing teknis tentang keramik art dan craft
juga hal-hal lain berkaitan dengan keseharian penulis. Bila ada uneg2 mangga pamiarsa komentaran secara blak-blakan..any comment I will accept openly..

Best,

Natas Setiabudhi

Thursday, January 26, 2012

The Witness

I usually put one cone and a small test piece for firing. In the picture there are two cones where one of them is just for test. I make my own cone, so every cones running out and make a new one, it must be tested by firing for temperature accuracy.  For small test piece, I made it from bisque ware which have been glazed and a hole in the middle, so you can draw it out by a steel rod.

The position of cones must be seen clearly enough from peep hole. In the bottom picture, you see the silhouette of the cones. Sometimes when temperature reach vitrified point, cones are not clearly enough to be seen by naked eye, it's a like the heavy fog around the pot. So to figure it out you can blow gently the peep hole by mouth in several times until the chamber atmosphere clear again. Remember to not get too close to the peep hole when you blow it, otherwise your mouth will be burned.


Specialized in table ware and interior element ceramics Spesialisasi membuat keramik table ware dan elemen estetik dalam interior

Wednesday, January 11, 2012

My Workshop #1

My workshop have many trees around. You will find birds, snakes, lizards, frogs, bats, etc. The trees are coconut, eugenia aqueapsidium guajaya, litchi, etc. My workshop place is in northern Bandung, so it's cool enough on rainy season.






Specialized in table ware and interior element ceramics Spesialisasi membuat keramik table ware dan elemen estetik dalam interior

Wednesday, January 4, 2012

Plate Mold

This plate has diameter 28 cm. and height 3 cm. May be if fired at 2246 F, it will be 24 cm. and 2.5 cm. The plate was my friend's design. We tried making a clay model for making this mold, but usually I use wooden or plaster material for model. Our consideration is the textural motif on the top of plate. We thought carving the clay (soft material)  is  easier than carving on the plaster (hard material). Carving the plaster is quite difficult and needs excellent skill.    

As you see, this mold used solid casting not drained casting method. Usually when you have appropriate thickness, the remaining of slip is poured back into container. Meanwhile solid casting just pour back the slip just little bit for making the foot. The principal difference is solid casting can reach two layers of the piece, inside and outside, drained casting only reach the outside section.    


1. Prepare for pouring the plaster
(bottom side)
2. The plaster near the edge of sphere

3. Strew the plaster into water
4. Making "island plaster" indicating
 stop for strewing. Just wait for 1
to 2 minutes the mixture is ready
for stirring
5. Prepare for second pouring
(top side)
6. Two parts of mold have been
released


8. Complete mold 
7. The model has been released 











Specialized in table ware and interior element ceramics Spesialisasi membuat keramik table ware dan elemen estetik dalam interior