MY NEW 42"OVEN BUILD.

[ivancito]

Made some progress today. I passed up 6 hours of overtime to work on my wfo but I enjoy this project very much and also look forward to this forum. Well finished my second ring and half my third ring. Again the inverted "V" apears and disapears at will but I'm happy cause mortar helps to hide it. Ivan

[ivancito]

Also very important to verify if blade is perpendicular to sliding table, I had to shim the saw base legs to get my angle finder back to zero degrees. Then I adjusted the head to show 2 degrees and set the table slide gage to 5 degrees. Hope this helps other newbies. Ivan

[ivancito]

I finally figured out the compound cuts using my HF saw and no need for jigs. Thanks to DVM upload ir his technique using the saw table guide and tilting the saw head a couple degrees. My mistake with my first 6 bricks was I placed the bricks wrong side up onto the previous chain. Still not perfect but a whole lot better and tomorrow I can mortar them in.
Ivan

[UtahBeehiver]

I can't say for sure if DJ's spreadsheet will work, it was developed after my build, but I believe so. I used JCG31's data as a baseline. I found the numbers get you in the ballpark, so I would only cut 3-4 bricks, see how they fit and make any adjustments as needed. Also my bricks were thicker (3" vs 2.5") so the course numbers on the JCG31 data needed interpolation.

[ivancito]

Ivan,

Just the opposite.

I see says the blind man. Thanks Russell í will try it again tomorrow and perhaps upload pics. Would Deejayous excel spreadsheet work with your type brick cutting jig?
Thanks again
Ivan

[UtahBeehiver]

Ivan,

Just the opposite.

[ivancito]

So frustrated today!!! I had to recut all 11 pieces of my arch bricks after I noticed I had cut them out of half bricks. I intended to bevel mthe back of my bricks for smoother dome to arch transition whick required a longer brick length. So I got those all cut again and then tried to cut some bricks for my second course and kept getting the inverted V on the inside brick face. Made a jig similar to Hendo but couldn't get it to work consistently, made another jig similar to Utahbeehiver and still trying to make it work, basically got nothing done.

[JRPizza]

Glad to help - I could not have gotten as far as I have without the help of others either. Early on, I cut all my bricks for a course per the spread sheet. I think without exception I had to re-cut every time, which is why I started cutting just a few or scraps till I knew what angle I wanted. I did not make a jig per se, I notched a piece of 2x6 to accept my blade, then used shims to make the angle I wanted. All you need is something that is stable and repeatable. Try using your new tools to find the angle that will make the sides of your brick perpendicular to the ground, and you won't have any vees.

[ivancito]

Ivan, I feel (felt) your frustration - had similar problem during my build. I used the spread sheet and it was close since the build type matched mine, but it was either not exact, or I was unable to accurately replicate the angles. I ended up cutting scrap pieces with the angle I thought was right, then holding one scrap with my IT and one with my hand to see if there was going to be an inverted vee. If there was, I adjusted. Sometimes I had too much angle and the vee was there, just not inverted . I found an incredibly useful tool, can't remember if I read about it on a forum or not, called a sliding T bevel. I used it to transfer angles from a protractor to my saw, and later used it to find the proper angle by laying it along the top of a brick and pointing it at the center of my oven. You can sort of see what I am talking about in the attached pic. They are cheap! You can get one at Harbor freight for 2.99 without a coupon. They even have a built in level. You might wat to pick one up.

Thanks JR for the encouragement, funny you should mention the tool, last thing I did today was buy a protractor and also a magnetic angle finder thing-a-ma-jig. I also downloaded deejayoh dome excel file and imputed my build info, still waiting on reply from other members for clarification of brick saw jig I built. Some of the builders in this forum make it seem so easy but just when I get the hang of something I totally have to start to learn or research this forum before I can do anything on my build. Thank you so much for your replies cant tell you how much it means to us newbies when veterans as yourself take the time and interest in our builds to reply and offer help.
Ivan

[JRPizza]

Ivan, I feel (felt) your frustration - had similar problem during my build. I used the spread sheet and it was close since the build type matched mine, but it was either not exact, or I was unable to accurately replicate the angles. I ended up cutting scrap pieces with the angle I thought was right, then holding one scrap with my IT and one with my hand to see if there was going to be an inverted vee. If there was, I adjusted. Sometimes I had too much angle and the vee was there, just not inverted . I found an incredibly useful tool, can't remember if I read about it on a forum or not, called a sliding T bevel. I used it to transfer angles from a protractor to my saw, and later used it to find the proper angle by laying it along the top of a brick and pointing it at the center of my oven. You can sort of see what I am talking about in the attached pic. They are cheap! You can get one at Harbor freight for 2.99 without a coupon. They even have a built in level. You might wat to pick one up.

[ivancito]

So frustrated today!!! I had to recut all 11 pieces of my arch bricks after I noticed I had cut them out of half bricks. I intended to bevel mthe back of my bricks for smoother dome to arch transition whick required a longer brick length. So I got those all cut again and then tried to cut some bricks for my second course and kept getting the inverted V on the inside brick face. Made a jig similar to Hendo but couldn't get it to work consistently, made another jig similar to Utahbeehiver and still trying to make it work, basically got nothing done.

[ivancito]

[QUOTE=ivancito;n387522]

Thanks Russell, I built a jig similar to yours and wanted to make sure I can set it correctly if using JCG31s bevel angle calculations. I marked up your picture the location of the abgle and bevel as they relate to the chart. Do they look correct to you? Will this chart work for my build since I have full solodier course? Thanks for all your help.
Ivan

[UtahBeehiver]

Sorry, as Gulf found, it is Tscarborough (aka Tscar), go to search feature, and do "advance search" with keyword "arch" and member "Tscarborough". There are several threads about buttressing.

[Gulf]

It takes several steps to do but, I found it under the Members List tab at the top of the page. Tscarborough / About / Find All Started Topics.

Here is the shortcut. It Is begun.

[ivancito]

Need others to chime in. I did hemisphere with no vertical soldiers. Imho, I think you can keep working on the dome as long as you bolster the soldiers in the end product. Do a search under user TSCAR, he discussed the need for reinforcement extensively since he did a barrel oven with very cool decorated brick work.

I typed TSCAR on the forum search box but I just get several of his post to other threads, also googled tscar site:www.fornobravo but his post do not link me back to his build. How do I get to his build?
thanks
Ivan