Archimedes screw cutaways by goodoleboy
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Description
The Archimedes screw, also called the Archimedean screw or screwpump, is a machine historically used for transferring water from a low-lying body of water into irrigation ditches. Water is pumped by turning a screw-shaped surface inside a pipe.
Source: Wikipedia free encyclopedia.
The screw shown at the bottom is my variant of the original invention made several centuries ago.
Sixth in a series of airbrush art I used while seeking a technical illustrator/graphics artist job/jobs way back in the 20th century. This, along with several others, was done in the early 1950s, applied on art board, using a real airbrush with thin paints, attached to either a compressed air tank or to a motorized air compressor. I doubt if many of you were around back then to participate in or witness this art genre. The above was executed not only with an airbrush alone, but also using pen and ink, plastic templates and masks. A steady hand and a delicate touch is the name of the game.
Mankind does not live by computer alone.
Comments (3)
sossy
very interesting infos and cool work showing the inside process 😀
anahata.c
I don't mean to ignore your other work, but I want to finish with your airbrush work first, and then I'll get to the other styles in my next session.
Here you have cross sections, cutaways (your title), to reveal the inner workings of this amazing invention. Your shading never belies the curvature of your surfaces: You convey curvature with organic ease. And you get the different thicknesses and thinnesses too. In the top one, you do the thin circling section---the actual "screw" part---with easeful skill. I've done drawings like this, but never gotten it to flow so easefully. It really does look like a fine pencil drawing.
The lower one---your variation (you were doing variations all the way back then---your variations have a long history!)--shows equal skill as you turned the thin 'screw' into a snaking tube, which I assume would "rod" out the soil more than drill into it. In any case, you have fine accompanying shadows throughout, and your usual ease and softness in how you shade and model the pipe. I also like the use of gold-yellow for the center shaft; and the hue of your background. More consummate work in this style. I imagine this must've taken quite some time...
helanker
This must have been hard to do with the soft (round) screw below. Excellent artwork :)