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Polyhedron

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  1. Do they use a sort of template for cutting? Or do they just do it by eye?
  2. Are these made with slip casting? How do they make holes like that?
  3. Just made the model and cottle boards. I had some questions regarding the next steps. 1. I used a 3D print combined with clay. If I want to make a mold I need to hover so I make the first half of the mold like this: Can I use a release agent so the clay won't stick to the hardend clay? 2. Can I use dish washer soap with water as a release agent for question 1? 3. Do I need to wait for the clay to cure (before I pour the plaster)? 4. He uses a wooden board for a divider. Can I just use the clay and flatten it? 5. Can I use dish washer soap with water as a release agent on the mold when I am going to slip cast it?
  4. Thanks for the tip! I also found this link when I reached out to the owner of webshop. I thought I post it here if someone Google this page in the future: https://www.keramikos.nl/vormmaterialen/961-gips-vigo-albast-25-kg.html?search_query=vigo&results=2
  5. Thanks, you just saved me for ordering it! I am trying to find it in The Netherlands, but I have a hard time finding it. I will try to email some shops. If there are fellow Dutch people reading this, please let me know if you have a link/keyword
  6. Thanks for the reading tip! I will see if I can find it in my country. https://krone-gips.de/en/content/products/creative/for-creatives/moulding-plaster.html http://ceramicbodies.sibelco.eu/sites/default/files/datasheets/en/K150_en.pdf Can somebody verify that these are compatible for slib casting? Especially the plaster for the mould. (I would like to check if I made any translation errors from the English tutorials I looked up.)
  7. YES! Thanks! I feel so stupid now. I don't not understand the last sentence, could you elaborate?
  8. Thanks Johnny! Here is a better picture of what I want to create. Is there a better way to make this? First I wanted to add the entry to the bottom and manually remove the top of the bowl to open it up, but then I would have a hole at the bottom.
  9. Hi! I have some questions about slip casting I could not easily find. There seems to be a lot of knowledge here, so I thought maybe someone could help my out with my first attempt in the world of ceramics 1. Is there a minimum draft angle for slip casting? I thought I could easily find this on Google, but I found nothing specific? Does it means that there is none? 2. is it important that the entry where you pour it in is the highest point with slip casting? Very crappy sketch, but something like this: Does that curl form a problem when you want to cast it?
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