Wine Glass Candle Lampshades

unikatissima Glass Candle Lampshade

I found the instruction on how to make wine glass candle lampshades neat, but I don’t have to rely on pre-made templates any more, because I know how to construct a cone ;-))
That’s exactly what I’ve done, additionally I didn’t use no wine glass but a water glass.

 

unikatissima Glass Candle Lampshade Admittedly a wine glass would look better, because the tea light is hidden then.
Or I should cover the lower part of the water glass.
Or I should make the cone higher (and I can ;-)).

I made my lampshade from sandwich paper which is actually too fine and doesn’t hold the shape (in the instruction they are using vellum). To improve this I taped some clear tape against the paper from the inside.
But it didn’t help very much.

 

unikatissima Glass Candle Lampshade Before I cut the lampshade I embellished it with some flourishes – looks cute, doesn’t it?

 

This is my cone calculation (shortened version):
Desired data:
Height H = 6 cm
Upper radius Rt = 3 cm
Lower radius Rb = 5 cm

Calculation:
PQ = Rt * H / (Rb – Rt) = 9
QT = 3
PT = sqrt(81 + 9) = 9,5
PR = 15
RS = 5
PS = sqrt(225 + 25) = 15,8

That is:
Outer radius = 15,8 cm
Inner radius = 9,5 cm

a = 360 * (1 – ((2 * Pi * Rb) / (2 * Pi * PS))) = 360 * (1 – (31,4 / 94,8) ˜ 241°

Great, isn’t it? ;-)

As you can also see on the topmost photo, another advantage of self-calculation is that the upper rim of the lampshade barely protrude over the rim of the glass and therefore the danger of fire is reduced.
Anyhow: Always be careful!
;-)


Links:
Wine Glass Candle Lampshades

Here at unikatissima: Calculation of a cone on the basis of the desired height, desired upper and lower diameter

Geometric Cut Paper Table Lamp

unikatissima Geometric Cut Paper Table Lamp

I find the idea of the Geometric Cut Paper Table Lamp great: All those beautiful fractal pop-up cards continued ;-)

On the photo you see my version, made from plain printer paper and with a tealight in the middle.
Because the paper is rather light, I’m afraid that the lamp may fall and catch fire, although there is enough place for the tealight.
But anyhow, I find it beautiful ;-)


Links:
At instructables.com: Geometric Cut Paper Table Lamp

Here at unikatissima: Fractal Pop Up

Paper Lampshade

Paper Lampshade

Yasutomo has interesting tutorials for different project ideas different project ideas different project ideas. I found this lampshade lampshade lampshade simply stunning!
My self-folded experiences looked also good. I wanted to use them as little gift boxes. It turned out that they were long but narrow cases for which I didn’t found any appropriate gift to put in ;-))


Links:
Yasutomo project ideas
Paper Lampshade
The original site doesn’t exist any more and is now available through webarchive:
Yasutomo project ideas
Paper Lampshade

Albert has pointed out that the archived page doesn’t show pictures (anymore?).
Fortunately Yasutomo has re-organized their website and the lampshade can be found there again:
Yasutomo project ideas
Paper Lampshade

 

The original site doesn’t exist any more and is now available through webarchive:
Paper Lampshade