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Old 12-14-2017, 01:49 PM   #21 (permalink)
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I was going to be a mechanical engineer until they gave me my first elective in my Sophomore year. I chose Ceramics, and the next [term/semester?] I transferred to Architecture. But I outlasted 80% of the cohort.

It needs to be wet when it goes together, then bone dry for firing. This is greenware. Low-temp firing creates bisque:

Choosing a Bisque Temperature

Glazed bisque re-fired at a higher temp creates stoneware.

HTH

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Old 12-14-2017, 03:23 PM   #22 (permalink)
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I was reading that site's page about why pottery cracks. They seem to have good information.

How do I keep my shavingcrete from collapsing in the middle?
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Old 12-15-2017, 11:46 AM   #23 (permalink)
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As successful as anything else I do



Maybe I need more oil on the pan. The brick came out pretty easily, but left a layer on the pan...

...cemented on.

It crumbled all over and I took it to the garbage outside to break up, but the middle did not break easily. I did not attempt to torture test it, I broke off what came easily, and that is what is left.

Actually rectangular pans, more oil, and trying to leave it higher in the middle?

At what point should I be able to turn it over?
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Old 12-15-2017, 02:30 PM   #24 (permalink)
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You're the one out on the bleeding edge.

Shaving lubricants in the foam? Bubbles too big/random sizes?

In most of the videos I've seen they use a thin mixture that pours and self-levels.
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Old 12-16-2017, 05:04 AM   #25 (permalink)
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Quote:
Originally Posted by Xist View Post

Where have I seen that rock before...???

Now I remember...


https://www.smithsonianmag.com/smart...tem-180967277/





>
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Old 12-16-2017, 03:28 PM   #26 (permalink)
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Quote:
Artist's rendering of 'Oumuamua (ESO/M. Kornmesser)
I prefer to think it looks like a 400m DC-3 fuselage with flames painted down the side (to account for the reddish tinge).
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Old 12-17-2017, 03:48 PM   #27 (permalink)
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My original bricks (with twice the concrete\foam ratio) cured inside for a week and then sat in the oven at 190 for nine hours. One turned out nicely, but I have not done more than put it somewhere safe and quickly see that it does not seem crumbly:

I do not know why this one came out bubbly, but trying to smooth it made it worse!

For some reason, they formed two layers. The crumbly one had a fair amount of water, seemingly between the layers.



I will crop these pictures when I get home, but I appreciate they automatically resize now!

I showed Mom one of the Dome Gaia Gaia Domes and she asked if they were building those in Puerto Rico.
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Old 12-18-2017, 12:51 AM   #28 (permalink)
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Someone should be. There is a great opportunity to break out of a number of boxes. If she's concerned about PR, show her this:

Bloomberg: How to Rebuild Puerto Rico

It's book-ended by a feel-good story about a fleaweight boxer, but the heart of it is a tale about anarcho-capitalists. It's inspiring.


I think the bubble size wasn't controlled. Don't be put off by the word autoclave in Autoclaved Aerated Concrete. The just means a sterile oven. You might have to powder the aluminum to get small bubbles.
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Old 04-19-2019, 07:43 AM   #29 (permalink)
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12 x 16 aircrete building for $1,000

So, apparently it had been longer than I thought since I checked up on Honey-do Carpenter. I saw some videos about building a shed, which he periodically says is not a shed. It seems he made several videos which he concluded some months back:



It has a concrete foundation, metal studs, and the roof is plywood and 2x4s, He laid down each set of studs, cut metal mesh to fit in between, poured aircrete, screwed them together using braces that seemed to be scrap metal, built a crane to lower the cables that he built in a similar fashion, and he said he was going to pour aircrete between the layers of plywood in the roof.

Stucco on the outside, plaster on the inside. The last video is from six months ago and it was still not finished, but I thought that it looked great.

For reference, YouTube recommended this video where a guy made a 12x16 shed for $2,600:

The video is almost 100 minutes long. I did not get very far! It is just plywood, siding, 2x4s, and OSB. It has a wooden floor sitting on nine concrete piers. He did not install any insulation.

62% less cost for an insulated building on a concrete foundation sounds like an amazing value.

This is more than a curiosity to me, I moved in with my mother a year ago, into the smallest in the house, and I have a number of things in my bedroom that do not belong to me because I do not know where else to put them. I have my dresser, tools, and Army stuff in a locker, and at least twice the manager has put a lock on my locker for not paying a late fee.

When I got the locker, I immediately set up automatic payments set for ten days before the due date. Previously, I had many checks cashed before the due date, so how was my payment date with an extra ten days? I then set my payments to go out another ten days earlier and I still missed a payment?

Or not. One time there was a lock, he could not tell me why it was there, and he removed it.

I got a locker to store things we had in the garage so I could work on my Civic. I am going to get rid of as much of that stuff as I can.

I have also mentioned my difficulty focusing when I try to do schoolwork, paperwork, etc., and that my mom likes to try to talk to me when I am taking tests. I finally found a solid-core door, which will hopefully attenuate my family, but is it too much to ask for just a desk for doing schoolwork?

I have wanted a small office space for schoolwork, paperwork, and making confidential calls. Mom and I have discussed me putting in a second shed. It would be great if I could store my stuff there and still have room for a desk.

So, I made a thread years ago about moving our shed. Dad had me put in a fence and regulations required us to move the shed a couple of feet from the fence, or so we thought. When I checked recently, fences are required to be five feet from the fence. The yard is about 50 x 60 and the one shed is 10 x 15. If I built a second shed the same size in the other corner, including the space between the sheds and the fences, they would occupy 600 square feet, out of 3,000.

Having the backyard 20% shed sounds excessive, especially when half of that is space we cannot really use.

Permits are not required for sheds less than 200 square feet, unless they have a water and\or electrical connection, and\or are attached to an existing structure.

I am unsure what I could accomplish in an unheated and dark shed.

I have considered adding onto the one shed so we did not need more wasted space, but if I could build an aircrete building for significantly less money and effort than an addition, why not? I figure that adding on would actually require more resources than building a second building.

Anyway, I thought the aircrete not-shed was cool, and I would love to have my own space without distractions or people locking me out for no apparent reason.

Have a great day!

Last edited by Xist; 04-22-2019 at 02:44 PM.. Reason: Added a permit requirement.
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Old 04-19-2019, 01:10 PM   #30 (permalink)
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Permits are not required for sheds less than 200 square feet, unless they have a water and\or electrical connection.
Plug an off-grid yurt into their regulations and see what falls out.

I'm gathering materials for a portable car port that will be a 12x15 ft hexagon following this YT channel.

I once spent a few month with everything I owned in a 9x14 room. Dressers on top of dressers and tables on top of tables.

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