Category Archives: Uncategorized

Buckminster Fuller

This text was presented as a talk at the Sunrise Offgrid Festival August 2012: I offered to give a talk on Buckminster Fuller after Dan, an organiser for the festival, made an invitation on Facebook. Buckminster Fuller has certainly had … Continue reading

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Greenhouse from plastic bottles

Re-purposing plastic bottles and saving valuable resources from landfill is important environmental work. The picture below shows school children from Mill Lane School in Chinnor, Oxfordshire, who collected 1,500 plastic bottles over 18 months in order to construct their greenhouse. … Continue reading

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Hazel Polytunnel

I know its very rude of me but I have lost the contact details of the lady who so kindly sent me the pictures of her polytunnel below. These demonstrate clearly the flexibility of fresh hazel when used in construction. … Continue reading

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GeoDome-Northern Homestead

This dome is a real beauty although the wood cutting might take some time. I particularly like the way the builders, Jakob and Anna Esau, have eliminated the need for connectors by jointing the struts directly. From their website: “When … Continue reading

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GrowDome 3

This is the top half a two-frequency icosahedron.

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Making growing dome 2

Make a five-eighths, three-frequency icosahedron greenhouse for £30

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Materials for growdome2

I wanted to make a greenhouse growing dome using recycled materials

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A 3 frequency model dome

With a large 3 frequency dome its important to build a model to follow as things can get complicated.

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An icosahedron growing dome

The grow dome worked very well in the spring, nearly all the seeds sprouted but there were a couple of problems.

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Building a DIY greenhouse

For this basic ‘wild’ dome construction I used a very simple method of joining struts

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Planning a DIY greenhouse

I built a fair size greenhouse dome with a diameter of 315cm, an internal height on the inside edges of 165cm sloping up to 230cm in the middle.

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an icosahedron primer

An icosahedron is a 20 faced spherical shape recognised even by Ancient Greek mathematics – I use one here to make a greenhouse

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