bobtiki Posted July 13, 2017 Report Share Posted July 13, 2017 Hey there. I'm new to ceramics, but I'm getting into it quickly. I looked around on the forums for this question, but I didn't see exactly what I was looking for. (Maybe I just didn't know the right name.) I'm trying to make something on my mugs much like the graphic detail on this Maryland Renaissance Festival mug. It's raised, smoothed into the mug surface on the outside, but has very fine detail on the inside: What is this sort of element called, and can you point me to info on how one might go about adding such a detail to a piece? Thanks! Link to comment Share on other sites More sharing options...
Pres Posted July 13, 2017 Report Share Posted July 13, 2017 The decoration on the mug looks like a type of sprig. Sprigging is the addition of a stamped or modeled object on to a pot. This could have been done with a rubber stamp, a plaster bar relief mold or some other basically flat image. The stamped piece is then added to the pot using slip between the two piece of cheese to leather hard clay. All before drying, and firing. Careful glazing is needed to make certain that the sprig is not obscured with the glaze. This includes the type of glaze, the thickness of glaze and the application of the glaze. best, Pres Link to comment Share on other sites More sharing options...
tinbucket Posted July 13, 2017 Report Share Posted July 13, 2017 The graphic/impression was most likely made with a wooden or metal stamp. It may be a sprig like Pres said or it ma have been stamped directly into the surface of the pot. I think it would be less work (after some trial and error) to stamp the pot directly. There are a number of companies that will make a stamp from a graphic. A quick online search will give you a number of companies and their pricing. You can also try an office supply store. If they offer customized rubber stamps, I assume that would work too. If I was trying to replicate the photo I would throw the pot, stamp it, apply underglaze or stain wash to the logo, wipe away the high areas of underglaze with a sponge, bisque it, wax the stamped area, then dip the entire pot in glaze. Link to comment Share on other sites More sharing options...
CarlCravens Posted July 14, 2017 Report Share Posted July 14, 2017 So research indicates this mug was made by Grey Fox Pottery, which specializes in this kind of thing. They're vague about their process... saying that the design is applied with a scrimshaw technique, similar to how sailors engraved on bone. They *imply* that the artist is engraving on every single cup, but that would be prohibitively expensive for such a detailed design, I'd think. Ah, here ya go... a video showing parts of their process. It's a sprig. Link to comment Share on other sites More sharing options...
Mark C. Posted July 14, 2017 Report Share Posted July 14, 2017 You need to make the sprig(stamp) This is something that you can do yourself- My studio assistant has made many dealing with bicycle subjects. They photos are posted on an old thread here. anyway-you can make the original out of clay or wood or metal and take a plaster cast of it and turn it into a press mold.I made her a cutout stamp that mimics gears in circle and then she presses that into a round plaster press mold of the image she wants. That video shows enough of the process to get the idea. I have few tips on glazing -you a small squeeze bottle with a micro tip for your glaze or stain and fill only the groves as best you can -let dry then wipe off the area so only the groves are filled. The video does not show this part. After that you can wax the emblem and now glaze the pot so that glaze is not on the raised emblem. I also suggest keep the deign simple -it will stand out better. Link to comment Share on other sites More sharing options...
bobtiki Posted July 14, 2017 Author Report Share Posted July 14, 2017 Wow! Thank you all for the detailed info. That definitely points me in the right direction. Much appreciated. Link to comment Share on other sites More sharing options...
bobtiki Posted July 14, 2017 Author Report Share Posted July 14, 2017 Just as a note to myself: This video shows a few more steps in the process. https://www.youtube.com/watch?v=iHXzYucZ3bI Link to comment Share on other sites More sharing options...
Roberta12 Posted July 14, 2017 Report Share Posted July 14, 2017 I make mugs with sprigs for a local business. I have started using rubber latex on the sprig before glazing. It works better for me than regular wax. The stamp I use makes a fairly deep impression. Roberta Link to comment Share on other sites More sharing options...
Mark C. Posted July 14, 2017 Report Share Posted July 14, 2017 Way better than wax for sure. I use it over a glaze to overglaze a design. Link to comment Share on other sites More sharing options...
Mark C. Posted July 15, 2017 Report Share Posted July 15, 2017 Heres how on a huge scale Link to comment Share on other sites More sharing options...
Pres Posted August 16, 2017 Report Share Posted August 16, 2017 Boy am I glad I only do 20 or so at a run, and everyone of those is different! Link to comment Share on other sites More sharing options...
clay lover Posted September 2, 2017 Report Share Posted September 2, 2017 I thought it interesting that no waxing over the black inlay was done, just glaze dipped over and then ...sanded?.. off. It would be difficult for me to sand, or remove the overglaze, that perfectly. Link to comment Share on other sites More sharing options...
Davidpotter Posted September 3, 2017 Report Share Posted September 3, 2017 16 hours ago, clay lover said: I thought it interesting that no waxing over the black inlay was done, just glaze dipped over and then ...sanded?.. off. It would be difficult for me to sand, or remove the overglaze, that perfectly. It's all about the shape of the logo and the amount of pressure you use. Link to comment Share on other sites More sharing options...
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