Originally posted by rsandler
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I am not trying to be critical with the following statement but it is meant to help others who decide to build a similar arch to the style you built.
With the Arch shape you used and the bevel on the dome contact points you will still be fighting a slight tear drop or egg shape where the dome meets the arch, You will need to be aware of this as you add courses and work hard to try and keep the dome round near the arch. It can be accomplished and based on your apparent skills you will be able to do it.
The bevels you put on will help over designs that leave the inner arch bricks square, but for others trying to use this technique as the inner arch rises it should also go further and further into the center of the oven so that the bottom edge of the bevel matches the inside of the dome. this is easily determined if you are using an IT.
If you check edge of the bevel of your top arch brick on the low part of the bevel to the IT you will find that the arch is outside of where the inner surface of the dome will naturally want to be.
I am guessing if you set up your IT and align it with the top brick of the arch you will find something like the drawing (Black lines). The dome brick will want to be inside the bevel so you will need to adjust the cutting of your dome bricks to compensate.
For others that are interested in this reaching technique the arch bricks need to be cut to the colored line to compensate for the dome moving in as it moves up. The distance the brick moves in (becomes longer) increases with elevation. In my case the first brick of my inner arch was 5 inches long and the last was over 8 inches long.
Chip
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