Your wheel looks so clean after throwing so many bowls!!! Thank you, Master! Love your videos!

Measuring the thickness after flattened the bottom makes good sense. I've been following your videos and learning a lot more than from my ceramic class. Mr. Lin, you are the Master!! Thank you so much!

Thank you so much, mr. Hsin-Chuen Lin, you are truly a great teacher and inspirer!!!

thank you for these demonstrations. I really appreciate the time you take so that we can improve our techniques. I would say that while measuring, we should also be tapping, so we get to hear what each mm shaved off makes as a difference to the sound feedback. Thank you too for the pots that sacrificed their lives for our benefit

I have been thinking about taking classes and I have learned a lot watching your videos. I must say for you to cut so many pieces for people you never met is quite impressive.

Thank you so very much for all of your videos. I've been potting for about 2 years and never understood it was the depth that created the "S" cracks! Cannot thank you enough! I enjoy watching all your very instructional and helpful videos!

@garyeasy7436

8 жыл бұрын

You may be interested in my rather long post here today. Luv the Mud!

It's a pleasure watching you at the wheel. Thank you for the video.

Thank you so much for sharing your hard learnt knowledge. You teach so well and go that extra mile to explain everything you do.

Thank you so much for this help. Previously I would stick a cut off push pin into the center of the bowl and when my trim tool hit it I knew how much clay I had left. Not ideal but it worked. Your idea is much better and I will plan to learn to hear by tapping and sacrifice some bowls. You have helped me learn to throw and I am soooo grateful. Many blessings to you and your family.

Thanks again. You are the best teacher in the house.

@aquqad Hi, to cut the bowl is for educational purpose. How can I prove my points if I didn't cut them open? Another purpose is to show people that don't be afraid of scarifying pieces when they are in learning process. Once they have learned the skills they can make lot of good pots after all.

That's a terrific way to measure. After 25 years in clay the bottoms of my pots are still a bit too thick. But I am never too old to learn. Thanks for the idea for this simple but nifty gadget!

Beautiful work! I am a pottery student in Holland ( Gouda) and I am learning verry much from you ...my thanks !!!! I am a big fan !!

Thank you. You are very kind to share your knowledge with all of us.

I "died" of my laugh at what I just did. I watch him as he working and then I blow in my screen to help him clean the bottom of the bowl while he trimming it, hahahahaaaa... 😂 This is how it is when you are too much focused on the pottery work! Oh God help me 😂😂😂 Thank you so much, mr. Hsin-Chuen Lin, Excellent teaching!

Thank you for taking you time to teach.

You are such an awesome potter! And I giggled quite a bit when you said "s" not ass! Thanks so much for teaching me!

Hi, Just type my name "hsinchuen" on ETSY.com and you will take you right into my shop. There should be 2 lists of my trimming tools. One is the whole set of 5 and the other is a set of two.

Thank you very much for all your videos. You demonstrate and explain very well what you are doing. I will be making a measuring tool as you show in this video but with one small modification. I will add other holes besides the one in the middle so I can leave the ruler in place and move the dowel beyond the rim of the pot.

@hsinchuen

4 жыл бұрын

If you have the budget, you don’t need to make the tool yourself. Please check this link for this set of patented measuring/Tombo tools: www.etsy.com/listing/642496397/small-3-pieces-set-bottom-thickness-and?ref=shop_home_active_32&frs=1

Thank you, all these years later.

wow, thanks-ingenious and generous!

another amazing video, bravo

you are awesome! seeing your way of working encourages me to continue throwing porcelain!! (I'm still in the process of cursing while trimming...lol)

Thank you so much for your wonderful videos and very clear explanation of how to make the bottom always 3mm! Thank you for sacrificing two beautiful bowls! I am off to my workshop to drill a hole and mark a dowel/chopstick! Do you use hacksaw blades for the trim tool?

Thank you for your excellent video, so very helpful, and very kind of you to make this for us, your work is beautiful. Could you clarify about preventing s-cracks - is it that the thickness of the bottom needs to be less than that of the sides to prevent the cracks? thanks again!

Great job !

Great video!!!

What kind of stone do you use to varnish the bottom at the end of your trimming?

Beautiful!

Hi Mr.Lin, I heard that compressing the bottom of the bowl after throwing also prevents S-cracks. Is that true?

YOU ARE AWESOME!!!!!!

@hsinchuen This is a short term pain but a long term gain. It makes sense to sacrifice one pot to make sure the registration of the measurement system is working accurately. One sacrificed pot followed by thousands of accurate measurements is worth it. When my daughter taught me the basics of throwing, she made me intentionally drop a piece of greenware onto the floor. Her purpose was to break my attachment to every pot and to reduce my pain if any one pot had a problem. It helped me!

you are a wonderfull potter :) and your porcelain glazes colors are masterwork. But this S lesson ... waa your the first telling me this information. No S under 3 mm ? that's an important lesson thank you from france :)

Excellent !

I am just learning how to do this. I'm a pretty good metal worker I'm going to make an adjustable depth gauge where I can set it to whatever say 15 mm and then I can just set it across the foot and when I reach the 15 mm it won't Rock anymore it'll go to perfectly flat and either side very easy so this is about I have a 6

Hello Hsinchen Lin; I was wondering what tool are you using to shape the interior of the dish? I have never seen anything quit like it. Thanks for your time

amazing! thank you.

Hi Hsin, Do you happen to sell your trimming tool? I would love to buy them!

Very beautiful

I gasped when you cut that second one in half

Como siempre fantástico. No tengo problema con ninguno de los pasos, solamente hacer las piezas iguales partiendo del montón de pasta..Si lo hago desde el plato una a una el problema es menor, pero tomar la misma cantidad de pasta del montón si.¿será falta de profesionalidad o solo es cuestión de intuición.Un abrazo.

HERMOSO, HERMOSO ME ENCANTA

S-CRACKS, a theory, and a solution that works. When you open the ball and pull up the walls of your cup (bowl, whatever...), that clay immediately below the ball decompresses, the molecules pulled apart, no longer compacted. Got it? You stretch that part of the clay, and the top of that stretched clay is what is inside the foot. When fired, there are not enough molecules, and the shrinking clay pulls itself apart, in an "S" pattern. A bad S-crack can go all the way through. SOLUTION: When you open the ball, leave a small, convex, mound of clay on the bottom of the well, the width of the foot. After you finish the walls, take an inside rib and push the mound down flush with the floor. This recompresses the clay inside the foot and prevents cracks. For teabowls, push a little deeper to form a "Tea Pool". Good luck. Luv the Mud.

@potterzebra

8 жыл бұрын

When you open the clay ball, hydrated mineral particles comprising the clay(s) and various tempering additives slide over each other, which potters describe as "stretching". There is no "decompression" in any sense that I understand, given the relatively small weight of the ball versus the atomic forces between atoms/molecules. What often does happen, though, is that wet slurry left too long at the bottom will over-saturate the floor of the pot, increasing the likelihood that it will shrink excessively. Sorry to have to go all technical on you, but I did study this with a very technical instructor. What Hsin-Chuen Lin is doing to "compress" the inside is A) removing slurry and B) flattening the clay platelets which leaves less room for interstitial water.

@garyeasy7436

8 жыл бұрын

Thanks for the reply. Mine is just one theory, & not the only one. But it did lead to a solution that actually does work, if anyone is still having trouble with S-cracks. It's not the weight of the ball that matters, it's the process of pulling up of the walls that "decompacts" the clay in the area beneath the ball, and the "S" does show in the direction the piece was rotating. I've never used much water anyway. I came to clay with a background in math & engineering, so I figure stuff out. If a solution works, the theory upon which it was based is probably correct. Of course, more than one theory can generate a proper solution. But, I think most people care less about the theory, and more about stopping the S-cracks, and this method does work.

@garyeasy7436

8 жыл бұрын

I apologize if this is too many posts, but I wanted to clear up something. My theory of S-cracks is not important, except for one reason. Thinking in those terms is what generated a possible solution, one that could be tested. And test it I did. I haven't had an S-crack since. I don't ask anyone to take my word for anything. Anyone having trouble with S-cracks can run the same test. Throw a few cups using this solution and include them in the next firing. See if it works for you. Oh yeah, I probably should have said 'bottle rib', instead of 'inside rib'. Best of luck. Luv the Mud!

@kerenmccomas966

7 жыл бұрын

I get S cracks in my slab builds too, what solution do you have for me?

@potterzebra

7 жыл бұрын

First, make sure your slab construction is not stuck to the support board by putting a layer or two of newsprint under it. Next, cover or enclose it to prevent rapid drying. Cracks occur because one section dries (and shrinks) faster than another. Larger pieces require slower drying than mug-sized ones. How slow depends on the clay, but one week drying time is adequate for clay that has shrunk less than twelve percent when dry.

What kind of clay do you use ?

Genius!

it pains me to see it´s been cutting through :O but very helpful for learning, thank you!

Do you use that same thinness for stoneware? I have never seen chattering put in with such ease and control. How do you do that? Wonderful video even though it made me cringe. Yes I know that you need to make the sacrifice but it does hurt to watch such a beautiful piece not be fired. Thank you for doing that for us.

Enjoy your tutorials, greatly! Your work steps inspire me and assist me every time I throw. I'm way deep into CHATTERING, now!!!!! Do you sell your tools as well?

That work is porcelain? Or ceramic?

perfect

Do you recycle your clay?

S-cracks are a frequent problem, especially for beginners who tend to leave too much clay at the foot of a wheel-thrown pot. All clay shrinks as it dries, and some clays shrink more than others. If the walls of the pot dry, shrink and become rigid faster than the floor, further shrinkage will be from the center of the floor outward, resulting in a crack. Hsin-Chuen Lin shows how to trim for even wall thickness, but if you don't trim, and suspect the floor of your pot is too thick, drying it very slowly upside down will often prevent an S-crack. Slow drying is a good idea for slab-built pottery too, especially if some sections are thicker than others. Avoid fans or drafts!

@garyeasy7436

8 жыл бұрын

You might be interested my post here today. Luv the mud!

thanks :)

dommage il n'y a pas de traduction française

Domage il n' y pas de traduction française

Oh no! I almost cried when you cut that beautiful bowl in half ;[ I REALLY appreciate this, but why make it so beautiful with all the "chattering" and everything if you were just going to cut it?

Thanks for the ideas, I'll keep this measuring tool and listen to the tap in mind the next time I set up a studio. I just started using Porcelain and have to give up making for a while. I think my pieces still look too much like stoneware. We will see after I fire the wood kiln in the next week or so. I would be honored if you watch my videos of firing this kiln design and give some ideas to make it successful. I'm probably needing a hundred Kiln Gods? Thanks and stay in there eh.

Would you say that the thickness of the bottom should be the same thickness as the wall?

@hsinchuen

2 жыл бұрын

Ideally yes, but making the bottom thin enough is more important to prevent s crack when throwing off the hump.

@mikeu5380

2 жыл бұрын

@@hsinchuen I see. Thank you.

But what is an S crack? What does it look like? What causes it?

@ErnestMSaenz

9 жыл бұрын

Moister build up on the bottom of any piece. The bottom of pieces dry slower than the rest of the piece, Trimming the bottom to 3mm or less allows the bottom to dry at the same rate as the walls thusly preventing an S crack.

@Acquavallo

9 жыл бұрын

Thank you

Sheer genius.

Thanks for this wonderfull video, it's clear and very well explaind. It was a good moment... Now I'm registered on your video. Thanks one time more. Gojec29 from France. PS: Sorry for my bad english...

S. Not ass! Not ass crack! hahaha! That actually made me laugh out loud.

@jelkepiter

9 жыл бұрын

lol, me too, laughing my butt off

heheheh he said ass :)