How to Build a Geodesic Dome. Out of Paper. Mikes Inventions 

Cool

yes very useful. Now chris can make a dome for his train

Now he is able to make a rainforest geodesic dome for his 100m diy lego train track

uesd

Yep

That's so cool!

Well Hey, How about that?! Thanks!

Hey there! I'm actually working on an Excel spreadsheet to go with this that'll calculate all that for you, but it'll be a while before it's done. In the meantime, Google "strength of geodesic domes" or similar, and you'll find there are some decent resources out there. It's really just a lot of trig, and that's why the Excel will be nice.

@@MikesInventions Did you complete this excel sheet? I would be very interested

I am also interested. Did you complete the excel?

Hey Bartsons, yes there is a relation between the two. It's based heavily in geodesic math, and that's why I suggest using that strut length calculator, because it does all the hard work for you. Just cutting a bit off won't quite give you the shape you need, and I've never tried to do it, because there's no real good reason to be less than perfect. Thanks for asking and watching.

Yeah, umm... domes are really hard to cover. They almost require a custom covering with each gore sewn to match. However, old round parachutes work fairly well. Thanks for watching! glad it helped.

You're Welcome Murray! Glad it helped.

if my A is 30cm my B is going to be 25cm???

Your B is going to be 26.53. Here's the reverse strut calculator link: www.desertdomes.com/rev2calc.html

if my A is 32cm my B is going to be....??????

thank you! :)

I put them in the order shown to make the dome come out right. Yes, this is because it's a 2 frequency dome. Thanks, glad it's easy to understand.

Andrew Ireland, yes it will certainly hold a sheet. Neat idea!

Hi Mr. Teddy: This little dome's struts are about 11" long, and the other ones are 88.3% of that.

Hey Purva, I'd suggest either flattening the ends of the tubes and drilling them, and connecting them with bolts or something similar. You could also cut one end of your tube into a short flap that bends away from the tube, then make a hole in the flap and attach them that way. You could also cut short strips of something rigid, yet bendable, that you can insert inside the ends of the tubes then drill the ends of the strips and bolt together and then bend to the proper angles. This method allows you to make the complex angles automatically as you form your dome. It's also possible to tie ropes together and fish them through the tubes, when pulled tight and tied off, they allow your tubes to remain rigid. There are many ways, as you can see. Just do what's easiest and best for your situation. Thanks for watching!

Mike Thompson thank-you so much Mike...but I'm also having trouble estimating the size, since four people need head space inside the dome, and the maximum length if strut i can use is 18 inches (it's a college project, and I'm an architecture student btw) so what frequency of dome would be most suitable?

Purva, let's discuss this over e-mail to minimize space on here. Mike@mikesinventions.com

It was as long as it needed to be, and Maybe that was 18", definitely not more than 24". Thanks for watching!

Yay!

Hey! The units don’t matter. Just keep the units consistent. All that matters is the ratio of the lengths. Desertdomes.com is the online calc I recommend. It goes both ways. Thanks for watching.

Hey Diane! The B Struts in that case are 26.53. It'll give you a radius of 48.5. Thanks for watching. Check out that link to desertdomes.com if you want to experiment with strut sizes and dome sizes.

Mikes Inventions mi

Yeah I suppose it could.

Thanks Junior!

@@MikesInventions if I may, in this vídeo you gave a Ratio for the length.. .883... is there a ratio for the 3v dome paper (next vídeo)... Like A, B and C? Thanks again and congrats for making it very comprehensive!!

​@@juniorpaz9943 If Dome Radius = Strut Length x Strut Factor, then factors for a 3v A: 0.349 B: 0.404 C: 0.412

@@MikesInventions Nice! I’m about to set up the 2v ... Then I’ll try 3V ... Thanks again!

A4 is the closest size to what I used here. I used US letter size actually, but I would have liked to use something larger, like 11x17 or A3 if I had it. Thanks for watching!

The 1m long pieces would be your long strut (A), you'd then need to cut it a bit to get your (B) struts. You'd also need to come up with a way to connect them since you can't smash PVC and punch a hole through it like you can with paper or steel conduit. I would recommend cutting thin strips of flat steel bar that just fit inside the diameter of the tube. Then you can drill through the pipe and this bar and insert a bolt. With a portion of the bar sticking out of the end, you can then drill another hole on that end and bolt them together to form the star joints. The flat steel bar would allow you to bend it between the bolted star joint and the pipe bolt to give you the proper angle. The strut length you measure would then run from joint hole to joint hole, so your longest A strut would be slightly longer than 1m to account for these metal bars on the end. This means you get a bigger dome! It would be a lot of work, but that's about the only way to do it with pvc. Although, PVC can be bent if heated with a heat gun, but it's a pain. And you still need some way to connect them. I did find a company online once that sold PVC joints for geodesics, but the fittings were very expensive.

@@MikesInventions you can heat pvc ends and flatten them then drill. PVC works well when heated

Hi! This dome requires 35 long ones and 30 short ones. Check out 1:16 for the length calculation as well. Good luck! It's a bit tedious at first, but it's totally worth it.

Correct. It's only the ratio that matters.

Thanks! Hope its helpful.

Hey Visal! It's about 3/8"

I suppose so, with protection against the birds chewing through the paper. Wrapped in tape perhaps, or coated in something like flex seal maybe. Interesting application.

Mike's response was great... I am thinking about building a big version of this for an aviary, cheep plastic in the winter and finch netting always. Did you build one?

Hi there! You'd poke them at a length according to that formula at the beginning of the video. It's all dependent on your strut length. Just leave enough at the ends so the holes don't tear out.

Mikes Inventions Thanks 🙏

Mikes Inventions keep up the good work

Hey Isuri! I'm not sure how much it can bear. I've only tested it with 3 small bears. ;-)

😜😜 we have an assignment to make a dome using paper and cellotape only which can bear 500g or more. 😄😄

With thick enough tubes and enough tape, it'll easily support whatever you want. You shouldn't have any trouble at all. Good luck!

Hey there! I don’t remember what the dimensions were. Only the ratio between the strut sizes matter

@@MikesInventions thanks

good idea

YOu could also get a job and work and earn enough money to rent a place... just saying.

Excelente www.academia.edu/19748963/domo_v4 Un saludo Vas a ocupar ver estos vídeos ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wmEEWxYUigE.html 1 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-AfibbuPUkWY.html 2 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8t9S891g5EQ.html 3 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-1cNqDiy51L8.html 4 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-plbB1o4dccI.html es.scribd.com/doc/296227284/domo-v4 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DfhMYHdcL5k.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2L9O7DQHzmQ.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-cwWBpjeyRS0.html photos.google.com/share/AF1QipN1XTixO0lMR39NvK9bDH2reXibTiB_uuh5BqXQcW-z3fQyjqjmmgevjz0LEqkw4w?key=VlJtZjdQLUlqZFoyX2FNb3E3NjdTTDFLTnJHczBn www.deviantart.com/taffgoch/art/Nexorade-Concept-Illustrated-209480777 control-zeta.org/archives/2172? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-_H7aP5-MSks.html bayfiles.com/15P8Cbmbbe/DOMOGEODESICO_Resuelto_pdf www.academia.edu/37921179/DOMOS_GEODESICO_Y_PLANOS.pdf

Straws and string make pretty strong triangles. Hot glue the vertices after assembly. Building a model is useful for figuring out the best way to assemble the full size structure.