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  #71  
Old 05-27-2014, 12:46 PM
deejayoh's Avatar
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Default Re: Dome spreadsheet calculator

If your first course was at 5 degrees and it was supposed to be <2 degrees, then I think you actually want to put negative tilt on the 2nd course so that the total of the tilt on the first and second courses is what shows as the total in the spreadsheet. Frankly, I would have to think more about it as I am not even 100% sure that will work. The problem with getting off angle on the first course with tilt, is that you can't really make it up as you go. The dome will be too flat.

If you have a build thread, you might want to post pictures there in order to get guidance from a broader set of builders.
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  #72  
Old 05-27-2014, 05:00 PM
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Join Date: Apr 2014
Location: South Carolina
Posts: 126
Default Re: Dome spreadsheet calculator

Quote:
Originally Posted by deejayoh View Post
Novaslo -

Yes - that should be right. Are you adjusting the cut to account for the steepness of the first course?
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Originally Posted by Novaslo View Post
I thought of that and will do my best to do that. Is that something I can simply enter into the spreadsheet? I will be more precise now that I have experienced this haha.

Any advise that you have regarding this would be welcome.

Thanks
I think there might be a misunderstanding with all the angles. Looking at Novasio's pictures in the build thread, it appears to me like the steepness is correctly set with the IT, so there should not be any adjustment necessary.

I think there was simply a confusion between taper and bevel angle and the bevel was too high, that's why every other brick is upside down. On the first course, the bevel is so low that cutting at 90 degrees would probably result in a very minimal V anyway.

I would recommend reducing the taper angle from the value given by the spreadsheet. Much better to have a gap on the outside than on the inside.
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  #73  
Old 05-27-2014, 10:50 PM
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Default Re: Dome spreadsheet calculator

Quote:
Originally Posted by hubert_s View Post
I think there might be a misunderstanding with all the angles. Looking at Novasio's pictures in the build thread, it appears to me like the steepness is correctly set with the IT, so there should not be any adjustment necessary.

I think there was simply a confusion between taper and bevel angle and the bevel was too high, that's why every other brick is upside down. On the first course, the bevel is so low that cutting at 90 degrees would probably result in a very minimal V anyway.

I would recommend reducing the taper angle from the value given by the spreadsheet. Much better to have a gap on the outside than on the inside.
Thanks for chiming in on my build thread...

Reducing the angle did work. But as I describe in my latest post, I still need to flip flop each brick.
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  #74  
Old 07-08-2014, 05:44 PM
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Join Date: Jul 2012
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Default Re: Dome spreadsheet calculator

I think there might be a small error in the latest version.

In column S the formula stops a few rows in and is replaced with '4'.

With this fixed it seems to produce results fine in metric as long as all the input cells are all in metric.
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