Making a Plaster Hump Mold for Pottery

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The Pottery Wheel

The Pottery Wheel

Күн бұрын

Пікірлер: 26
@agnediciuniene9861
@agnediciuniene9861 2 жыл бұрын
I put a string in plaster so that the loop is sticking out. When the plaster is dry it shrinks some, then I pull on a string and get the mold out of glass container. 🙂
@ThePotteryWheel
@ThePotteryWheel 2 жыл бұрын
Aha! great idea. thanks :)
@Cephas_Intelligence
@Cephas_Intelligence 2 ай бұрын
Hi, Lesley, You are my biggest Fan thanks for the mails you send on Pottery and ceramics, you have really added to my Career as a Ceramicist and you are a Big Inspiration to me, I was just able to get through to your KZbin Channel ❤️ I really Love you!❤️✌️😎 thanks
@ThePotteryWheel
@ThePotteryWheel Ай бұрын
Thanks so much!
@tarazanjani4770
@tarazanjani4770 2 жыл бұрын
Thank you for sharing.I would like to make couple of them.
@susanl2618
@susanl2618 2 жыл бұрын
Thank you so much ... it's so generous of you to share this. :)
@sharonatseanicstudios9970
@sharonatseanicstudios9970 3 жыл бұрын
Another helpful lesson. Thank you
@mottspoint
@mottspoint 2 жыл бұрын
Clarity on the "plaster islands": are those "islands forming" because the plaster added to the water is approaching the water level? And do the islands stay there or form and go under? Thanks for this video which is the easiest one to follow. And PS, I did two in metal bowls: it takes a little to get them out. I used a rubber mallet with a folded towel protecting the metal, and in the case of a large one, did a couple of drops from two feet onto a folded towel on a hard surface. I used a Burt's Bees hand salve of wax and botanical oil for the release as I didn't have vaseline.
@ThePotteryWheel
@ThePotteryWheel 2 жыл бұрын
Hi Jennifer, the islands form when you are getting to the point where you've added enough plaster. It starts to poke out of the surface of the water. Islands tend to stay there rather than crumble. Once they appear it's a good idea to start mixing quite soon before the plaster starts to harden. Good idea to use Burts Bees!
@sistercookies
@sistercookies Жыл бұрын
Would you shave the edges of the foot of the finished plaster bowl so that it was completely rounded? Aren’t most hump molds rounded? I’m guessing it’s just personal choice. Thanks!
@juliebestic8151
@juliebestic8151 9 ай бұрын
Wonderful thank you❤
@fizzilemon
@fizzilemon 3 жыл бұрын
Very helpful, thanks!
@ThePotteryWheel
@ThePotteryWheel 3 жыл бұрын
Hi Elizabeth, glad it helped!
@kellysunday7781
@kellysunday7781 8 ай бұрын
I found bubble holes on the surface of my finished mold. Any tips on removing, sanding, or filling?! Thank you for your great videos!❤🎉❤
@ThePotteryWheel
@ThePotteryWheel 7 ай бұрын
You could try sanding the bubbles out. If you're sanding plaster wear a mask though as the dust is fine. The only issue with sanding and filling is that the surface of the mold may not be that even. Do you have any plaster left to do another one? I wondered if the plaster was old. I've found that if I use old plaster that has absorbed moisture in the container, it can sometimes get bubbles.
@moonchildceramic
@moonchildceramic 3 жыл бұрын
Where can I buy this plaster? Thanks for your help
@ThePotteryWheel
@ThePotteryWheel 3 жыл бұрын
Hi Kathy, what country do you live in? That will make a difference in terms of where to buy your plaster. You can use plaster of Paris or pottery plaster. If you want to know a bit about the difference between the two, you can have a look at this thepotterywheel.com/pottery-plaster-vs-plaster-of-paris/
@moonchildceramic
@moonchildceramic 3 жыл бұрын
@@ThePotteryWheel hello thank you! I live in the United States
@ThePotteryWheel
@ThePotteryWheel 3 жыл бұрын
@@moonchildceramic Hi Kathy, check out this article, it has links to where you can buy the plaster and some info about what kind of plaster to use, hope it helps! thepotterywheel.com/pottery-plaster-vs-plaster-of-paris/
@MrsSceptical
@MrsSceptical 2 жыл бұрын
Thank you! a wonderful 'how to', can I ask how long you let the plaster set in the bowl before turning it out ?
@ThePotteryWheel
@ThePotteryWheel 2 жыл бұрын
I'd leave it a few days. If you turn it out too soon, the plaster is still soft and 'cheesy' and might crumble
@donnajobe6111
@donnajobe6111 2 жыл бұрын
I followed your instructions to a T! I cannot get mine out
@ThePotteryWheel
@ThePotteryWheel 2 жыл бұрын
oh no! Did you use a slightly flexible bowl? If you use a rigid bowl it will be hard to get the mold out. But with a flexible plastic bowl you can give it a bit of a wiggle, and the mold should pop out.
@svetlanabalashova9027
@svetlanabalashova9027 Жыл бұрын
Could have been a 5 minute video.
@amyshimm
@amyshimm Жыл бұрын
I respectfully disagree. Lesley included many important details to ensure the mold is made properly, from what type of mold bowl to use, to how to mix the plaster, and even where to discard the cleaning water from the bucket. You can always speed up the video, skip ahead or find another resource if this doesn't suit your needs.
@thevagabondonwheels4918
@thevagabondonwheels4918 6 ай бұрын
In the KZbin settings, there is a playback speed option. Change it to 2x and voila, a 5 minute video. However, considering that her channel is one of the most helpful pottery-related resources on the Internet, I disagree with your assessment.
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