Trawoeer Power Pyramid Version 12 - Electrical output from a homemade pyramid

[Pascuser]

I'm cutting the gypsum exactly on the 1 meter dimensions, converted to inches, and this is what I came up with.   Did it to see how to get it out of 1 piece of 4X8 gypsum board with the least number of cuts.  Have to cut it at Home depot before I bring it home.

Hi Ben

Don't forget to either cut one of the gypsum plates longer for an adjustment with no spacing in edges, or to take in account the angle for cutting in edges so plates will adjust together with no spacing holes on edges.

Good work!

[k4zep]

Hi Duff, Pascuser, all.

Actually, I'm not to worried about the outside as the inside dimensions.  I am going to attempt to make it fold-able with two Piano hinges between the 3 pyramid plates. Will finish off all sides with glass pre-stuck tape like you finish a wall board to keep it clean and reinforce the edges.Will have hinges on the inside and let the V grove on the outside be as it may, or might finish it up with 1/4 Sq. wood as a filler as it is on the outside.  Will cover the front edges of the two forward pyramids with a strip of "U" metal and have it also sit on a collapsible metal bottom plate that will keep all square when it is pinned that way.  I have quite a bit of experience working with tubing, etc. from days past, just don't have room now.  Boy, when I retired, I retired.   Small tabs to keep every thing aligned. All metal will be tied together with bonding wire that can be plugged and unplugged for shielding and folding. It just simply is a fact that I don't have any room to store a fixed pyramid. It will be square, it will be dimensioned correctly and I hope workable.  I know Thomas hates "works" of art, but I have just a little bit of art in me and want it to be presentable.

It is hot as hell here in FL, USA to, in low 90's F with heat indexes over 100F every day......not a fun time of year to be outside. 

Thanks for the drawings, will look at them carefully, and I'm sure learn a bit more about the CAD system.  I have forgotten so much but it is coming back fast.......

"Ain't we having fun?"

Respectfully,
Ben K4ZEP

[Pascuser]

@Pascuser . Back in the year2006/7 I believe that Thomas said that the dimensions given [ base 1 meter square , diagonals 1 meter] were the internal dimentions of the inside of the plasterboard [gypse] shell . If this is true , would this give a "focus" [centre of gravity] at exactly 25 cms from the floor ?

I did the calculations with dimensions that I could read in the messages written by Thomas explaining how he built his pyramid in 1.2 Frame and 1.3 Coat messages given here by duff:
http://www.overunity.com/index.php?topic=11068.msg294461#msg294461

In this message we see that edges of the pyramid (going from apex to corners of the square base) are 1 meter long, as the square base edges; and this is the same information in his videos where he says it and says that he has 60° angles (not possible if the square base has 1 meter edges and edges from apex are shorter).

"Mark exactly 1000mm from the bottom of our Metalsquare (in the corners) to the 3/8" Tube and mark it from each Corner."
"If you measure from the absolutely Bottom of the 20/20 ground-structure (without wood-plate) to the TOP, you have to measure exactly 100 cm. (on the Corners)"

So, the inside of plasterboard that should read 1 meter for edges, is only the inside laid on the edges of the pyramid; but the plasterboard is longer since it goes to the ground, 20mm in the bottom more.
But at the height of the square base, the plasterboard are 1 meter edges triangles exactly, for the inside. Outside is greater.

"Now, we have to find the Centerpoint of all the 4 gypsum-plates. You can use a circle (tool) to mark the Centerpoint of each side of the pyramid.
Please don't forget, that you have to use the TOTAL MEASUREMENT of every side. (That's, because the outsides of the pyramid are more than 1000mm now!!!!)"

I made all calculations here using these informations (written in english):









The last picture is the interesting one, where I give the summary of the work.
Because of the use of the tube for the pyramid height, there is a small imperfection and the focus point of the inside plasterborad is at 24.6cm

If there was not this imperfection, it would be at the height 24.2cm

As the plasterboard doesn't go to the apex of the pyramid (there is a cut) the focus point must be somewhere between these two positions, depending where the plasterboard cut has been made.

Formulas in this summary will help anybody to calculate his focus point for his pyramid.

[k4zep]

I did the calculations with dimensions that I could read in the messages written by Thomas explaining how he built his pyramid in 1.2 Frame and 1.3 Coat messages given here by duff:
http://www.overunity.com/index.php?topic=11068.msg294461#msg294461

In this message we see that edges of the pyramid (going from apex to corners of the square base) are 1 meter long, as the square base edges; and this is the same information in his videos where he says it and says that he has 60° angles (not possible if the square base has 1 meter edges and edges from apex are shorter).

"Mark exactly 1000mm from the bottom of our Metalsquare (in the corners) to the 3/8" Tube and mark it from each Corner."
"If you measure from the absolutely Bottom of the 20/20 ground-structure (without wood-plate) to the TOP, you have to measure exactly 100 cm. (on the Corners)"

So, the inside of plasterboard that should read 1 meter for edges, is only the inside laid on the edges of the pyramid; but the plasterboard is longer since it goes to the ground, 20mm in the bottom more.
But at the height of the square base, the plasterboard are 1 meter edges triangles exactly, for the inside. Outside is greater.

"Now, we have to find the Centerpoint of all the 4 gypsum-plates. You can use a circle (tool) to mark the Centerpoint of each side of the pyramid.
Please don't forget, that you have to use the TOTAL MEASUREMENT of every side. (That's, because the outsides of the pyramid are more than 1000mm now!!!!)"

I made all calculations here using these informations (written in english):









The last picture is the interesting one, where I give the summary of the work.
Because of the use of the tube for the pyramid height, there is a small imperfection and the focus point of the inside plasterborad is at 24.6cm

If there was not this imperfection, it would be at the height 24.2cm

As the plasterboard doesn't go to the apex of the pyramid (there is a cut) the focus point must be somewhere between these two positions, depending where the plasterboard cut has been made.

Formulas in this summary will help anybody to calculate his focus point for his pyramid.

Good Morning Pascuser,

Damned good work, I felt like I was back in Trig. class!.  I think you have covered it to perfection and answered all question!  I'm working on my folding Pyramid today waiting for parts from Thomas. As funny as it sounds, it will take me 3-4 days to complete it as it takes time for materials to dry, etc. Will post pictures of basic unit ASAP.  After I chose my 1/4" Gypsum board, (weight considerations) I found a 1/2" gypsum board that has bare gypsum on one side.  I wonder if the paper coating has any effect on it's output.  We will know when we get these devices working.


I so look forward to the first replication that works!!!!!  Whomever, wherever, it makes no difference to me!!!!!!  Keep at it all!


Respectfully
Ben K4ZEP

[zhak]

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