I'm an artist, professor, and I like to learn things. I run the Ceramics Area at Indiana University Southeast and I'm the Founder and Executive Director of Artaxis.org. I appreciate you stopping by my RU-vid channel.
I'm not sure what the shrinkage rate on this casting slip, but most casting slips will shrink more than a normal clay body. I would expect casting slip to shrink at 15% or more.
Easiest way to clean pc11 or any sort of caulking off your hands is with cleaning wipes. I have some plain hand wipes that work excellently at cleaning up my hands and the edges of my project. I also agree with covering everything with cardboard, this stuff definetly is difficult to get off once it's dried.
Hmm, I've never heard of that. I would be concerned about the moisture turning to steam and either cracking or exploding the mold. Putting in the sun, or a dry box will certainly speed up the process of drying, though. Thanks for watching the video!
I'm not sure exactly. It requires the use of equipment (like kilns) that are expensive and vary significantly across brands, size, and age. Most of the supplies are able to be purchased pre-mixed, so for example, you could buy pre-mixed slip, pre-mixed glazes, etc. I work within a university setting, so those costs are absorbed among the thousands of pounds of the materials and supplies we buy each year. Sorry I don't have a better answer!
Hi Katie! Yes, slip/engobes can be used on both high fire and low fire clay. We use the same slip on both high fire and low fire clay and have never had a problem. I could imagine a scenario where a high fire slip over a low fire clay could be problematic .. since you are putting a thin layer of more porous clay over the surface of a tighter body, but I've never heard of it causing a problem. I would think that for something that needs to be restaurant grade food-safe, you would want to match a slip's firing temp with the body, but that isn't really done in the ceramics world .. at least not that I've heard of. An engobe is just a slip with a flux in it, so an engobe is already fluxing more than a slip anyway. So, with that in mind, it doesn't seem like it would be an issue. For example, commercial engobes like Amaco Velvet Underglaze are used on lowfire, midrange, and highfire clays all simultaneously. Hope that helps!
My friend, your explanation will take longer than it should be. You shouldn’t mention small detail about cleaning or mixing. I’m sure people can figure out that thank you.
Thanks for watching Aziz. I make these videos for my students (I'm a teacher) and for them, I need to explain things in a way that is clear .. even if it takes a while. It's just how I've been doing it for nearly 20 years :) I appreciate you watching, and your feedback though!
little trick forget the gloves and mix the epoxy with wet hands holding the epoxy under running water while your mixing it then apply see how it wont stick to your hands instead of the gloves
Hey Brian, didn’t know you were doing these videos until now. I’m looking for some slip casting visuals for reference and found this video. I just posted a variation of this project too.. didn’t know Jeff did this on Fusion, but I did a tinker cad version that was much more basic. Thanks for putting this together and sharing!
Thanks Michael, so glad you liked the video! I've never tried any other accelerator other than heat, although I'd be really curious if you find anything out. I built a large box with a small space heater in there. I use that to set the PC-7 on the object (not all the way hard, just set it so that it's much stiffer). Then I can take the object out of the box and keep working. Usually I leave it in the heat for a 2-3 hours. Sorry I don't have a better trick, but please let me know if you find out anything!
Thanks for the feedback rand95060b8797823f9832h4f7h329f8! Your videos must be perfect. I'll have to check them out someday. I'm "sort of" sending big hugs you have an amazing day!
Nice video. I've been doing this for 50 years! I'm 62 now, and I'm still going! It only gets better. Too bad that this art is slowly fading away. Folks may dabble, but it's Nothing like it was back in the 70s! This is very educational!
@@BrianHarperstudio Dear brian I was wandering if you can tell me the components of the clay you are using I should be thankful if you tell me Kind regards Salem almaari
@@salemalmaari7103 Hello, thanks for watching my video. You can find the recipe here: claybucket.com/recipes/casting-slips/. The one I'm using in the video is the first one at the top of that page. Hope this helps!
Thanks for making us discover that nice activity. I think there is a problem with your 3D printer as you seem to have the same artefacts at the same height on both items. It's probably related to the Z axis.
This was a great overview of the process, so thank you for sharing! I watched a few other videos on slipcasting and I saw a video where they had added a "sacrificial rim" of sorts to the mold. It meant that when the slip was poured out and the top was trimmed, there wasn't a thicker rim left behind and the exposed top of the casting was more uniform with the rest of the mold. You've probably figured this out by now but I thought I'd mention it!
Hello! I know you can import SVG files and work with them in Tinkercad. I've done that a little but with image of text and that kind of thing. One of my students did that with some medical images, but it has to be graphic image - essentially an image that can be extruded into a shape. There's an "import" button in Tinkercad. Hope that helps!
@@BrianHarperstudio I researched it Brian thank you....and youre right, they have to be specific pics or Tindercad shreds them. But I have started with basic shapes and just tweaking them to what Tcam can tolerate. Cheers Brian...it was a great Tutorial. I learned a lot !🥸👍
I want to thank you for your 3D software videos. I am not a potter, but am following you for these videos and for ideas I can use with polymer clay. Thanks again!
Thanks so much for the feedback @gregeoryl. I do that sometimes with clear epoxy and the like, but with PC7 I like the worn feel of an old stir stick. I sand the edges down and after awhile, they're much more comfortable to use than a new stick. I usually use the same stir sticks for years. Anyway, thanks for checking out my video!
