Mileslgr

thanks a lot for the link ! That's really interesting

Yes sorry for the late answers, I had some hectic days lately. I will keep you all updated with the final results

Sorry, the picture was taken after drying

Thank you for your answer, it is a good point. Unfortunately I have no more time to further develop this design, since I made it through a residency and I am getting to the end now. Also, the idea is to produce a large production a this piece in the future, and the people who would produce it needs the less steps as possible in terms of finition, in order to make this product affordable.

Yes, very good point. We have noticed that regarding the direction the nozzle would extrude (clock-wise or counterclockwise) for the same object, the direction of the distortion would also change. So there is definitely some tensions created through the layers of clay while the nozzle "pull" on the extrusion. I am use to work with slipcasting, and I was shocked how crazy were the distortions compared to this technic.

Yes, I have been reducing the size of the object so that I could easily flip it down onto a piece of plastic foil after letting it dry a bit. It seems to be already better

The fabric is used so that the first layer of clay stick to the surface it is printed on. Since the nozzle of the machine goes pretty fast, it is necessary to have this rough surface at the bottom of the piece. Once printed, I free the fabric so it can shrink with the piece at the same time. Otherwise the extremity of the shape start to bend like the one on this picture :

Hi Babs, thank you for your answer, the pictures have been taken after drying

Hello, Since a few week, I am developing a project through 3D printed ceramic. The objects I'm printing need to be as much accurate as possible in terms of dimensions etc. The problem is that every time I dry the pieces, they start to get crazy deformations (I knew ceramic always move while drying, but I was not expecting such big distortions) The pieces are printed on a MDF board, covered with a piece of fabric. The fabric helps the first layer of clay to stick to the surface (the nozzle goes pretty fast) The piece of fabric is stretched on the wood. Once the print is done, I usually unstretch the fabric so it can shrink with the clay. Then I cover it carefully with some plastic. I leave the whole on the floor. I need the top of my piece to be flat, but as you can see on my last picture, it's now bending a lot : https://drive.google.com/drive/folders/1iwQ6TLWefRFuEQVDA_IaLFZokacUni7Q?usp=sharing What would you advice me for this drying process ? Does the fabric and the wood under the print soak the water faster than it evaporates from the rest of the piece ? Should I flip it immediately onto a plastic sheet ? (the problem being that it is very difficult to flip the piece while the clay is still fresh) Thanks for you help