Very Cool! I'm still exploring slipcasting a mug and handle in one pass. The challenge has been allowing for the stresses caused by the clay shrinking as the water is drawn out in the mold. One other aspect I like with mugs is a mild, rounded outward flare to the rim, which seems to help avoid dribbles... 🙂
Thanks! Someone else asked offline about an integrated handle and I was worried about the form causing issues. I know it can work, but the form (and clay) probably really needs to be dialed in!
It looks like you have everything working together well. While I don't 3D print or make many cylindrically symmetric pots, it is an interesting process. I wonder if you've seen the "I like to make stuff" UA-cam channel, in particular the video "What do I do with all these crayons?". He 3D prints molds with contact surfaces printed with TPU fiber, and they hold molten wax without need for other gaskets.
Most people can't print multi material and indeed he had challenges with his first few interations as well. Mold making I'd tricky! As for other types of forms they are on my roadmap
I have not (they weren't an option when I started Shape Cast development). However I'm guessing they would work ok, at least the first time the mold was used. I'd be curious how well they grab once it is disassembled and reassembled. If anyone tries, do let me know!
Everything is printed "upside down" with respect to the finished pot, which is the same as the orientation in which the plaster is poured. So the pot foot is the last thing printed. That way all of the supports are away from the side that transfers into the pot. The exception is the design proof which I print in the same orientation as the pot itself.
Room temperature is fine. Actually what matters most in drying your pots is to do so evenly. If you do accelerate the drying you need to be rather careful so it doesn't crack during firing. Slow is much easier.
In that case the clay will be shrinking around the plaster while in the mold. As such, I think the handle design needs to accommodate that. And the 3d printing is indeed easy - the more involved part is the 3d modeling.
There is no inner mold with the plaster shown here for the body. The slip is poured in and back out. And you can have inner molds with slip casting as well to make solid cast parts and/or double walled parts.
I’m so Excited. I was Just Gifted a professional Kiln. And I got a New 3d printer still in the box.
That's awesome! Lots of new toys to learn and play with!
I will 100% be using shapecast in my process, awesome tool you built there.
That's great to hear!
It's always great to see your work, thank you !
Thanks for watching!
Very Cool! I'm still exploring slipcasting a mug and handle in one pass. The challenge has been allowing for the stresses caused by the clay shrinking as the water is drawn out in the mold. One other aspect I like with mugs is a mild, rounded outward flare to the rim, which seems to help avoid dribbles... 🙂
Thanks! Someone else asked offline about an integrated handle and I was worried about the form causing issues. I know it can work, but the form (and clay) probably really needs to be dialed in!
This is so awesome!
Thanks!
It looks like you have everything working together well. While I don't 3D print or make many cylindrically symmetric pots, it is an interesting process. I wonder if you've seen the "I like to make stuff" UA-cam channel, in particular the video "What do I do with all these crayons?". He 3D prints molds with contact surfaces printed with TPU fiber, and they hold molten wax without need for other gaskets.
Most people can't print multi material and indeed he had challenges with his first few interations as well. Mold making I'd tricky! As for other types of forms they are on my roadmap
Have you tried using the self tapping screws Bambu sells instead of using threaded inserts and m3 bolts?
I have not (they weren't an option when I started Shape Cast development). However I'm guessing they would work ok, at least the first time the mold was used. I'd be curious how well they grab once it is disassembled and reassembled. If anyone tries, do let me know!
What orientation did you print the example cup? Ive had problems printing with a curved bottom so i chamfer everything now
Everything is printed "upside down" with respect to the finished pot, which is the same as the orientation in which the plaster is poured. So the pot foot is the last thing printed. That way all of the supports are away from the side that transfers into the pot. The exception is the design proof which I print in the same orientation as the pot itself.
You can also do a raft for things to help with that, just another idea.
I wish the handles tapered down towards the bottom. Big enough for two maybe three fingers only.
I was wondering do these needed to be baked?
Feel free to reach out for custom design work. And yes, these still need to be fired to turn the clay in to ceramic.
Can you teach us how to make a liquid clay mixture?
I have several videos on mixing up my slip.
Amazing, do you sell your molds ?
Yes, I do. You can sign up to Shape Cast to make your own 3d prints, or feel free to reach out if you'd like something else. shapecastmolds.com
Oh! Do you ship to New Zealand?
Im a noobie, but do you have to use heat or can it dry in room temperature?
Room temperature is fine. Actually what matters most in drying your pots is to do so evenly. If you do accelerate the drying you need to be rather careful so it doesn't crack during firing. Slow is much easier.
why not do 2 part mold and cast a mug with handle attached? Should be easy with 3d printed molds...
In that case the clay will be shrinking around the plaster while in the mold. As such, I think the handle design needs to accommodate that. And the 3d printing is indeed easy - the more involved part is the 3d modeling.
Good results. However, technically speaking, this is not slip casting. In slip casting, u don't have inner mold.
There is no inner mold with the plaster shown here for the body. The slip is poured in and back out. And you can have inner molds with slip casting as well to make solid cast parts and/or double walled parts.