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Experimental adjustable drive block for the Replicator 2X extruder. The purpose of this design is to allow the operator to fine-tune the pressure applied to the filament by the idler ball bearing.
The 3D-files: www.thingiverse.com/thing:267394
Instructions: bit.ly/1eaYi3p
The 3D-printer: bit.ly/1ehTaKU
So I made a pinhole "lens" for my dSLR. I don't know why, but tonight I decided to do something with it. Except it's the middle of the night, what can you do?
Find something bright enough to make an image! The obvious choice is the halogen lamp on my desk.
I noticed that the image focused better closer in, so I removed an extension tube and tried again. The result is an almost 1:1 macro!
As introduction, textile silks are often produced from the cocoons churned by the larvae of the MULBERRY SILKWORM.
In general commercial silks are produced through the following processes:-
(a) SERICULTURE - Cultivation of silkworms.
(b) HATCHING OF EGGS - The tiny eggs of silkworm moths are incubated for about 10 days until they hatch into a larvae (caterpillar)
(c) FEEDING - For about period of 6 weeks, the larvae are fed huge amounts of chopped mulberry leaves, during which it sheds its skin 4 times until it is ready to spin the cocoon
(d) SPINNING THE COCOON - Over the next 4 days, the worm rotates its body in a figure 8 movement constructing a cocoon, and producing silk filaments
(e) REELING THE FILAMENT - Cocoon is treated with boiling water, and silk is unbound from the cocoon by softening the sericin, and silk filaments are then reeled from the cocoons, one strand at a time.
(f) THROWING - Raw silks are then twisted into strands sufficiently strong for weaving or knitting...
Which then makes me ponder, if there are any other insects that produces silk (apart from silkworms)? Here's your homework, do a little research, and let me know :)
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
The dream begins with a teacher who believes in you, who tugs and pushes and leads you to the next plateau, sometimes poking you with a sharp stick called "truth"
Ah, the time of year, when final grades are due and students politic for a couple of extra points that would move them from one letter grade to the next and teachers grapple with what that might truly mean for the student. A math teacher friend who lives in a more 'black/white' world points to the calculations, but my world tends to be more gray. Using rubrics and being very transparent about the evaluation system and formative feedback from the beginning appears to do little for those who are more interested in a grade than in learning. The dilemma is compounded when the students are prospective teachers, but in the end, the sharp thorns balance [to the best of my ability] with the beauty in the eye of nature. Naples, FL
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
[Please do not use this image without permission. If this image or any of the others interest you – write to me via FlickrMail or leave a comment, and I’m sure we'll be able to negotiate access to the original file].
Taking pictures of a small light bulb, I noticed the free end of the filament vibrating rapidly.It was a complete blur, and added to the shot...
Two purple-gelled flashes (580EX (thanks, Alan!) and 580EXII) @ 1/16 to left and right with baffles to keep the background dark, triggered via ST-E2.
The significant change compared to previous efforts was dumping the softbox and using the flash direct, which allows winding back the flash power a bit.
lightbulbs, vintage radio vaccuum tubes, polymer, brass, copper, anodized aluminum, swarovski stones
Flash Light Bulb.
Photo taken with a hacked Canon EF 35-80mm lens purchased at a thrift store (with 35mm SLR body) for $20. For more info on the macro lens hack, visit:
In the obvious next step from the straight lines of Pick-a-Stick, curves are plotted between the successive points in the strange attractor. The artist is of the opinion that the results are among the most beautiful available on pixelbrain so far, and has so far amassed several engrossed hours watching them emerge out of the darkness. (These, more than any so far, are worth launching the applets for...)
Created using Processing.
See pixelbrain for more, and try out the applets to watch the images being formed.