615.Turning a Twisted Cylender into a Sodium Silicate Texture Thin-necked Bottle 林新春 岩花瓷細頸瓶拉坯示範

right so pretty quickly i center and then open to the right thickness and then i'm using the fingertips this part here to kind of compress the base from the center toward my right to the right hand side and slowly moving and also i had my base a little bit wider and even when you open it a little indentation here okay and then after that i usually collar in to make my ceiling cylinder a little bit narrow and now i'm ready to get my first initial pulling this piece of clay is not very big it's a little bit less than three pounds so i'm just going to just grab using the thumb and the fingers and then pull the clay up and while i'm doing that my right hand place my right hand brace on the splash pen and then attach my left thumb to stabilize it and this finger the right hand right fingers it's going to stabilize the wall while i'm lifting okay and after i lift my first initial lifting my collar make the cylinder make it straight and also make it a little bit narrower for my next pulling in the meantime i'm making the service a little bit slippery by applying the slip on the surface and also remove the slip and then coat it down the inside of the wall right so now my next lifting stabilize everywhere connecting all the fingers together i usually like to pour the slip of my finger and then i'm using the slip to curl on the inside of the wall instead of using water and for the outside it's easier just get my finger in the bucket of water and just put the water on the surface and usually people forget to try to move the clay up usually they build up a lot of clay here in the corner so what you want to do is kind of squeeze the clay i'm using my right fingertips um bring the clay so squeeze the clay so the base is smaller and i could still use the clay and pull it up so that your piece would be a little bit lighter because you don't have too much clay in the corner and you can see that the clay here is the wobbly meaning uh it's a lot of torque and uh that's because the clay if the clay is wet and you have a lot of uh pulling so you create a ripple here and usually that's the uh that's when the clay tells me stop pulling me up otherwise i will collapse okay so i usually pull not quite like this okay this is very worse already but uh you could get it back by just applying the uh applying the rib to make it straight well i first used the wooden rib to kind of compress the wall and now i'm going to get the a little bit finer using the metal rim so before i apply the sodium silicate i like to get some texture so this is the tool i'm using to get the horizontal texture and when i stretch it the vertical texture will be more clear but i want to have a little bit of a horizontal uh texture a little bit deeper so i'm using this this is the scraper i just use a knife to get the like teeth here and i'm leaving this portion here maybe a inch engine about two inch with putting an in texture and while i'm brushing the uh sodium silicate i will avoid brushing silicate or sodium silicate here so that uh this power will be easier for me to close it and still have some clay there to work with so the this is the sodium silicate combo with the liquid foam and if you think it's sometimes they get dried out so i can add water to make it work again it's a water soluble right so i have to brush the surface okay after getting the texture to brush the sodium silicate uh you want to use a heat gun hair dryer or torch to dry it if you're having the torch it's very powerful so make sure that you don't over drive it okay you dry too much when you stretch it might crack so just apply the heat here and when the shiny goes away you stop right the very shiny spot is going away so i think this is fine and now all you need to do is just stretch it from inside and without touching the outside it's very also very good practice for shaping so when you are shaping usually you want to use this part here the pad don't you don't try to use the finger nail okay don't use the nail to touch it so it's using the pad to push slightly curving your fingers and then push it out and you want to do it slowly little by little and you can see that the clay where is touch this part here touch a little bit more a little bit less here but all the fingers touching then you want to make sure the inside is slippery while you are stretching it so i'm using the sponge to add a little bit of water to the inside of the wall so i keep on checking the profile of the curve see if it's following all the way through so like here from the camera here this part here i need to probably need to stretch out a little bit more so the curve is following through so i'm going back here to just emphasize that spot maybe here i need to push it out a bit more so that the whole curve followed through so i am coming back here to push out this part here right so that looks good and now i'm going to close it for you to close it easier and faster actually you can if you don't do the easy way okay you can cheat a little bit just apply a little bit heat here to stabilize the wall and then it will be a lot easier for you to try to close the top so let me just show you how to do that so for closing the smaller opening i'm applying a little bit of water to liver clean and i don't want to have too much water drip on here so i'm using a sponge to just touch up the spot [Music] right so i you saw me through the whole process when i'm starting to close it i kind of pull up and then pull into the center and then slightly slowly squeeze it make it smaller and smaller and squeeze it do a little by little and the key of making something small and tall you want to speed up the wheel a little bit okay make the wheel spin a little bit faster okay um a lot of uh uh lubrication then not too much of the uh friction if you have too much friction the next easy to to get ripple and then tear apart now the clay here on the baby pattern i can just chop it up um i don't usually mention this to uh to you uh this knife it's a regular wooden knife but i use the sandpaper to sand it down so this part here is very sharp very sharp so i'm holding this using the sharp it's just like a knife and then just pierce it at an angle and then all the way till i touch the bed and then pull out and using my number 10 it's number 10 it's very also very useful tool it's very thin and then it's just undercut so that uh versus using if you're using a needle tool needle tool has a little bit of thickness so when you undercut sometimes you push the clay back and then stick on the side of your pot so i usually like to use a thinner thinner blade to do that so let me show you how i do it hold the two are very steady i'm using my both hand so if you have a the top tab view you can see it hold steady both hand and brace the the arm here on the splash pin and then just cut it in an angle just follow the angle of the curve and i'm taking my time until i touch the back and then pull out okay pull out my knife my wooden knife and then use this that very very thin my number 10 okay and just push that so that it's almost horizontal against the back and then just cut it until you see the tip of the needle and let it go for a run for rotation around it and then just cut here and it's very easy to separate because the clay doesn't stick back onto the wall so you have a very nice clean base okay so that's the uh throwing and you can see that when i throw i have a big ripple but i managed to get it back okay just i use the the wooden wooden rib to compress when i i make it straight that wooden rib to hold against it and then make this fire straight again right so this is about not quite two pound and 13 ounces so not a very big size but it's a very good practice for smaller size using this technique the sodium silicate hope this demonstration helped and see you next time you

Channel: Hsinchuen Lin

Views: 10,918

Rating: 4.9384613 out of 5

Keywords: ceramics, pottery, wheel throwing, stoneware, porcelain, mypots, mypots.net, casserole, lidded jar, Vase, glazing, Hsinchuen Lin, 林新春, 手拉坏, 陶藝, Teapot, Teabowl, Chawan

Id: wCrynEVlDxs

Length: 23min 57sec (1437 seconds)

Published: Sun Sep 19 2021