A2 DT is the year 13 course title for design technology, just to clear
and i have considered using perspex, which although is brittle is cheap,
and with simple structural changes to the greenhouse would be
theoretically strong and lasting.
I begin to suspect that you will
not make this any better but in fact your collapsible version will be
expensive than the same size that is fixed. Is that the case?
i would have to create a folding mechanism, however my ideas incorperate
less, or the same amount of material as a fixed greenhouse of the same
size, due to the wway the greenhouse would fold.
Do you mean 3 square metres or 3 metres square (ie 9 square metres)?
i meant nine square metres, and my greenhouse is designed for flat
ie. apartment, or balcony gardens, as my original post wasn't very
clear, and the dimensions are based on research on apartments and flats
in my area, and the average size of their garden, which is around 3m2,
How big will it be folded and what will it weigh?
it will be folded flat abainst the wall, to 2.5 metres high, and about
5cm thick, and will be incredibly lightweight, using only perspex, and
metal bolts and screws/nuts.
How many people will it take to fold/unfold/carry it?
it will only take one person to unfold or carry it, as the folding
mechanism will be smooth, and one action will make each part fold
separately, simply by using the force of the initial movement of the
Will it have racks or benches inside? Will
these also collapse? Where will all the pots or trays full of earth go
it is collapsed? Given the storage requirements for the components how
space will actually be saved by collapsing it?
i haven't decided all the interior components, but shelving is possible,
and wouldn't takeup any extra space, however pots would have to be from
the user, and i would only be able to include a space for pots, and they
would have to be removed when the greenhouse is folded. i have thought
of some ways in including extra features such as rain collection, which
would be easy to include, would this be a useful feature?, and the
greehouse would fold down to 5cm depth, meaning an extra 2.95m would be
I assume it will be covered with flexible transparent polymer sheet,
what will be the effect of collapsing or erecting the structure on that
sort of plastic over a period of years?
i am not going to use any flexible plastic, as i believe it looks
incredibly ugly, and untraditional, and it would stretch and wouldn't
retain its shape, and the perspex would't be stretched, or damaged by
any amount of folding, as no friction between the surfaces should
Why would you go to this much trouble? When do you imagine it would be
folded and when unfolded? What climate would it be suitable for?
it would be for first time flat buyers, generally, and for those that
live in houses/flats with small gardens that wish to garden. it would be
folded down during the colder months, when the plants simply cannot
survive without heating, or when the user wishes to use the outside
space, eg when they are socialising they may wish to go outdoors, and
with a permenant greenhouse the space isn't useable, however with a
foldable greenhouse the space can be used. the greenhouse should be
suitable for UK weather, as that is what it is designer for, however i
haven't created a prototype yet, so the insulating capabilities are
still unknown to me.
The trick is to garden in 3 dimensions which requires stands or shelves,
trellises. Are such involved in your plan?
all of which i could incorporate, however am only in the first stages of
the project currently, and i will have to test different features when i
have created some prototypes.
thanks for your feedback.