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  #101  
Old 03-22-2011, 06:14 PM
lwood's Avatar
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Default Re: Round shape

Farms in Berkeley??????.....where did that chicken come from? I went to school at UC Berkeley and saw many strange things but never a chicken. Anyway, your oven looks great. Once you close the dome, you'll never see the tear-drop.
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  #102  
Old 03-22-2011, 07:38 PM
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Default Re: Round shape

Yes that's right. Berkeley Farms, you know were all Hippies here in crazy town. No seriously we do have 8 chickens and the fresh eggs are fantastic. They will be going on the pizzas (the eggs that is not the chickens).

- thanks for the look at my oven, I know once I close it in nobody will know but me (and all you guys).

-I do think this would be helpful in the plans or online in the "opening size sticky".

Mike
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  #103  
Old 03-22-2011, 09:43 PM
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Default Re: Round shape

Yes I agree, it would make the sizing and locating the door opening easier. Now that we are in the Philippines, everyone has a chicken in the backyard, including us. We have about 35 native chickens, 8 sheep and 2 wild boar. Although, I have been missing the Bay Area lately. Always loved those Berkeley Farms commercials......FARMS IN BERKELEY?????
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  #104  
Old 03-22-2011, 09:59 PM
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Default Re: Round shape

Quote:
Originally Posted by Mike D View Post
-I put my arch on the outside of the round floor shape as in the inside edge touched the circle. I think if you push the arch inside so the outside edge of the arch is what touches the circle you wouldn't have a teardrop issue.

Anyway here are a few pictures and yes that is a chicken in the last pic.
Yes, the outside edge to avoid the dome going inside the top of th arch. I had to draw it to scale to make sure mine worked out. The tear drop shape will happen either way unless you are absolutly diligent with keeping the dome round and have a tool to ensure the shape. even with an indispensible tool as mentioned in these forums mine tended a little out of round near the arch. This happens because to tranition to the arch you have to use unusual shaped pieces and therefore tend to straighten out the transition.
once you are past the arch you can pull it back into shape. I used a couple of rings of fencing wire adjusted to the correct size to get back to round.
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  #105  
Old 03-22-2011, 10:06 PM
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Default Re: Round shape

I saw how you pulled it back into round form, I like the use of the metal rings. I will keep that in mind when I proceed. At lest no one will see that top inside area of the dome, unless they stick their head in (in might be a bit hot in there during a pizza party).

Mike
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  #106  
Old 03-23-2011, 03:58 PM
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Default Re: Round shape

Mike, the brick work looks great. Very nice arch you have there. I think the 'tear drop' happens more with a true arch (half circle) entry like you have vs. a 3-4 bricks straight side walls THEN the arch-over. That way there are vertical "arch-wall bricks" to bite into as you do your rings and close up the dome. I think the way to avoid it (but I would think it it's not a good idea) is have a taller dome which you don't want.

Stick to what your doing and shoot for the correct final internal height even if you have to tear-drop forward to catch onto your arch. It's the nature of the beast with round arch entries like yours.

Home-farm fresh egg cracked on a pizza! that's something to look forward to.

-cheers, Dino
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  #107  
Old 03-23-2011, 05:15 PM
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Default Re: Round shape

Thanks for the help Dino- I read your whole build before I started mine, nice job.

-Here is how I figured out my design flaw. When I put my wooden guide under the arch, I thought it wouldn't line up because the arch would (should) obstruct it. It doesn't even touch when it is lined up with the circle on the floor. If the arch was pushed in more, it would be fine.

-I think you are right about the round vs. straight sided arch. It is easier for one to mess up a round arch out of human error than on a straight sided one.

-If you look at the 4th picture you can see how the first row lines up with the arch. I think if the arch is pushed in more so the outside edge of the arch brick lines up or hits the first row the arch will fit inside the dome. At this point my arch will be on the outside of the dome.

-I think I will have to push a teardrop to connect the dome to the arch and then correct the shape as others have done.

I think I will post this as a new thread to separate it from my build to help others in the future.

Mike
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Round shape-teardrop-3.jpg   Round shape-teardrop-.jpg   Round shape-teardrop-2.jpg   Round shape-arch-start.jpg  
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  #108  
Old 03-27-2011, 09:53 PM
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Default Re: Round shape

Got one more row done - slowly getting things done

When did people move to cutting bricks into 3's?
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  #109  
Old 03-29-2011, 11:39 PM
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Default Re: Round shape

Mike,
If you have to ask the question, the answere is the next row .

I looked at mine and I have a soldier course, 3 half-brick rows, then everything else is 3rds, (and by by the time you do the last 2 rows, they are all custom and you stop counting).

I bet your getting a little frustrated with half bricks fitting in. You've done such a nice job and by now, the half bricks are kinda limiting you from keeping tight joints on the rows. Go ahead and just start doing everything in 3rds and the rows or rings will go in nicer.

You will be 'arching over' in your rings and closing up your dome soon enough so the extra time it takes to install 3rd bricks is not a big deal even though it may seem like it. You'll also find that those 3rds (or 1/4ths, 1/5ths near the top) come in really handy at the "shoulder" rings where you bring your dome in (tilt the ring blocks to the middle) and your start closing up the dome.

What row or ring are you on now? Your oven is going to be awesome, keep up the good work!,
-Dino
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  #110  
Old 03-30-2011, 07:19 AM
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Default Re: Round shape

Hi Mike D,

The 1/3 and smaller bricks seem a natural way to go for the last few rows near the dome closure since the half bricks begin to give a more angular look . You'll also find the smaller bricks are necessary to avoid lining up mortar joints. On some of my bricks I angled one side to get a good fit and on others I tapered both sides to get the best joint. I chose what I thought was the most simple and straight forward approach to building the dome and didn't taper the bricks at all until it became necessary towards the end. There are several ways to do it of course.

I really admire the artistry of some of the forum members, their work is super. I also respect the less than perfect masonry because I know how hard it is since I just completed my 36" Pompeii. The dome won't fall in, but it won't win any beauty contests either.

Best of luck with your build.

Cheers,
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