How do you ensure the inside gets glazed? I see that that the air did escape but how? Is there something inside the well there that forced the glaze in and air out?
Your process is amazing, any chance it'll bring the cost down to where these things are affordable and not just a novelty? I would so love to have one but I can't pay that much for a cup.
Thanks! That’s the idea, eventually. It’s going to take me quite a bit of work/time/money to scale up to meet any sort of meaningful demand though.
There is a pump in the center that sprays up to coat the inside walls as it is dipped. You can see it turn on just before it is dipped in the first part of the video.
Practice. I’ve been engineering and modeling for more than 10 years at this point. It’s all part of the design process. Pay attention to things that you like the style of and figure out what details make it that style.
I, like a few others, would like to know if there is an online source for the three switches (especially the e-stop button) and how you wired them up. Excellent job on the 3D switch panel btw, it is so satisfying to have an idea and be able to create an actual physical object that is useful. We live in truly amazing times.
I got them on Amazon a long time ago. The e-stop is decent, but the other two are pretty low quality. They work fine, but I’d like something a little nicer.
That’s basically the idea. You’ll be able to boil in the microwave and still be able to pick it up. It won’t keep your drink warm for hours, but it’ll keep it a much more consistent temperature than a regular ceramic mug. I’m excited to test it once I get one fired. And the plan is to not have a handle at this point.
Air pockets can be fires as long as the piece is completely dry before firing. The dry clay is strong enough to hold the air pressure, but it will explode if there is any moisture inside.
Awesome design but I’m curious if there are any issues drying/firing these without cracks or them blowing up in the kiln? I was always taught that air bubbles are the enemy?
Wow this is impressive! I love the wood integrations. Can I ask what your design process looks like? Do you kinda just hand make prototypes, measure, and iterate or do you plan a lot of it out in software? Is the wood cut out w/ CNC and hand chiseled? I would 100% subscribe to your YouTube channel if you had one - this is awesome
Thanks! At this point I design pretty much everything in CAD first. I used fusion for this. Then physically build it and iterate from there. Wooden parts are all designed to fit together without hand finishing. I’ll probably put a video together about this once I have a finished mug.
Do you do a test slip everyday? We did this when working at a slip casting company. Measure wall thickness at something like 90 seconds, 3 minutes and 5 minutes (or something like that based on the properties of the slip). Plot it and determine your time based on the wall thickness you want.
Yeah, I’m planning testing the slip pretty frequently. I probably won’t be mixing up new slip that often, it’ll be interesting to see how much of a variation there is between batches.
I made it with my cnc router and 3D printer. I will probably make a YouTube video at some point once I get farther along. I post more frequently on Instagram.
Yeah. I’ve made similar mugs in the past, but I was making them a little differently. Air wont cause explosions, but moisture will. They just need to be dried completely before firing.
How do you keep the mugs attached to the baseplate when they get dunked?
There is a suction cup attached to a vacuum that holds them down.
Which pump are you using? I guess holding that much weight upside down would need a lot of vacuum degree to work?
It’s a cheap pneumatic Venturi pump off of Amazon.
Hey aren’t you the guy trying to make double walled mugs? I remember the color scheme from a few months ago. How’s that coming along?
You’re looking at it. Still working through the last few bottlenecks before I can ramp up production to more than a few a day.
How do you ensure the inside gets glazed? I see that that the air did escape but how? Is there something inside the well there that forced the glaze in and air out?
There is a pump in the center that sprays up as the mug is dipped.
Your process is amazing, any chance it'll bring the cost down to where these things are affordable and not just a novelty? I would so love to have one but I can't pay that much for a cup.
Thanks! That’s the idea, eventually. It’s going to take me quite a bit of work/time/money to scale up to meet any sort of meaningful demand though.
How do you get the glaze inside the mug? Wouldn't there be air trapped inside preventing glaze from coating the inside the mug?
There is a pump in the center that sprays up to coat the inside walls as it is dipped. You can see it turn on just before it is dipped in the first part of the video.
Did you just essentially CNC a plaster mold? I have no clue on the specifics I have just seen but I'm very interested
Yeah. I built the router about a year ago and have been experimenting with plaster slip casting molds.
Custom build? What program so you use for design
It is a PrintNC.
how did you come up with the styling? I can design things that mechanically work, but how do I take it to the next level and do pretty too?
Practice. I’ve been engineering and modeling for more than 10 years at this point. It’s all part of the design process. Pay attention to things that you like the style of and figure out what details make it that style.
I, like a few others, would like to know if there is an online source for the three switches (especially the e-stop button) and how you wired them up. Excellent job on the 3D switch panel btw, it is so satisfying to have an idea and be able to create an actual physical object that is useful. We live in truly amazing times.
I got them on Amazon a long time ago. The e-stop is decent, but the other two are pretty low quality. They work fine, but I’d like something a little nicer.
I like that, very neat, nicely designed
Thanks, I’m really happy with how it came out.
I like the design and implementation a lot, but the Aluminum plate was just fine.
It was a scrap piece of hardboard, not aluminum.
Congrats!
What about that air pocket, won’t that make it explode in the bisque firing?
They don’t explode if they are completely dry. Moisture is what causes explosions.
I think I’d like this design more for keeping the mug cool to the touch than keeping the contents hot. Will the end product have a handle?
That’s basically the idea. You’ll be able to boil in the microwave and still be able to pick it up. It won’t keep your drink warm for hours, but it’ll keep it a much more consistent temperature than a regular ceramic mug. I’m excited to test it once I get one fired. And the plan is to not have a handle at this point.
What happens when it gets baked. Wouldn't the air in the isolation area expand and deform the whole mug??
Air pockets can be fires as long as the piece is completely dry before firing. The dry clay is strong enough to hold the air pressure, but it will explode if there is any moisture inside.
Awesome design but I’m curious if there are any issues drying/firing these without cracks or them blowing up in the kiln? I was always taught that air bubbles are the enemy?
Thanks! It’s not an issue if it’s done correctly. It has to be completely dry before firing.
This is unbelievable. Can I ask what your background is, engineering maybe?
Thanks. I’m a mechanical engineer and have been making stuff since I was a kid.
Wow this is impressive! I love the wood integrations. Can I ask what your design process looks like? Do you kinda just hand make prototypes, measure, and iterate or do you plan a lot of it out in software? Is the wood cut out w/ CNC and hand chiseled? I would 100% subscribe to your YouTube channel if you had one - this is awesome
Thanks! At this point I design pretty much everything in CAD first. I used fusion for this. Then physically build it and iterate from there. Wooden parts are all designed to fit together without hand finishing. I’ll probably put a video together about this once I have a finished mug.
The parts are PLA printed on my Ender 5 plus. It screws together using threaded heat set inserts. Wooden pieces were cut on my PrintNC cnc router.
Do you do a test slip everyday? We did this when working at a slip casting company. Measure wall thickness at something like 90 seconds, 3 minutes and 5 minutes (or something like that based on the properties of the slip). Plot it and determine your time based on the wall thickness you want.
Yeah, I’m planning testing the slip pretty frequently. I probably won’t be mixing up new slip that often, it’ll be interesting to see how much of a variation there is between batches.
How did you make the machine? Would love to learn more if you have a YouTube channel or something.
I made it with my cnc router and 3D printer. I will probably make a YouTube video at some point once I get farther along. I post more frequently on Instagram.
Have you tried actually firing them? I was under the impression that things with air pockets crack or explode in the kiln.
Yeah. I’ve made similar mugs in the past, but I was making them a little differently. Air wont cause explosions, but moisture will. They just need to be dried completely before firing.
Are those skateboard wheels?
You bet
Not to sound too obtuse, but what is the benefit of a double-walled ceramic mug versus a steel one?
I just don’t really enjoy drinking hot stuff out of the steel mugs and it’ll be microwaveable.
This is like porn without the happy ending. What's your only fans account? 😂
Ha. Maybe I should start one…
Do you happen to have something that's not facebook where we could follow?
prattceramics.com
How AWESOME, would love to see how they turn out!
Thanks! If you are interested in more frequent updates