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An injection molding sim, brought to you by IDSA materials and Processes blog

Via Robert Fortner, who I met at Research Club: proto SMS for pilots, you can listen in.

Arduinos in the Upper Atmosphere, the trans-Atlantic Atlantic Halo they’re launching a test balloon soon if you’re in France/UK, help’em out! via Balloon-Sked:

Launch Date: 13/2/10
Launch Time: 15:00UTC
Launch Site: EARS, Cambridgeshire, UK (52.2511, -0.0927)
Payload: ATmega328 with Arduino bootloader on custom PCB, Radiometrix
NTX2 10mW 434.075Mhz radio, Lassen IQ radio, 3x DS18B20 Temp Sensors,
Photocell, Williamson peristaltic pump and 500ml ballast tank (ballast
= ethanol/methanol)
Balloon: 1500g He, pinhole (1.5mm) vent -> aim for float @ ~20km altitude

I know I’ve been talking a lot about mutoscopes (that thing took all my time), but I really will get back to balloons.  Here’s a shot of a new design I’m working on for short hops, it’s had two flights with two different riggings since september.  it’s a tetrahedron flying upside down.  I’m going to try to illustrate a second chapter to my balloon building guide in January, focusing on the short hop balloon.  There won’t be many flights though, because I’m moving to Portland.  That will be my last design for low flight and line control- next year I’ll be putting my ham license to good use on some higher altitude stuff.

Don’t hold me to it, but I want to get into automated flight control of solar hot air, with temp and light sensors inside a balloon and a controlled valve.

The rest of the time I’ll be composting, looking for a job in waste management, and trying to start a small business.  More on all that later, but the short of it is I want to work towards creating new blue collar jobs that manage enclosed resource cycles- i.e. engineering is great, but you’ll still need a plumber in space.

There are many reasons to love mutoscopes, from nostalgia to mechanical beauty, but any expensive niche medium competing with less expensive and widely available systems must have a design rationale and purpose in it’s own right beyond the purely aesthetic.  Within the context of the art world mutoscopes have a place as more than a curiosity- they are a solution to a real problem facing animators like Fernando.

Fernando Renes is an animator but his drawings don’t move.  All of his animations are digital movies of static drawings one degree removed from his works on paper.  If you want to see his work, you’ll have to go to a gallery or museum showing them, because Fernando’s income is dependent on the sales of limited editions his animations.  He can’t just post a video to YouTube, it would devalue the work of his collectors.  Online and in print there are plenty of stills from his work, but you can’t see any reproduction of his finished pieces anywhere outside of a gallery.

This is problematic for Fernando and other animators in the fine art world, as well as for the art world in general.   Painters can be known by their prints- I don’t have to fly to Paris to have seen the Mona Lisa- because prints don’t devalue the originals.   But animators’ drawings don’t move, only the movies of their drawings do (Harry Smith, Stan Brackage, and other film scratchers excepted).  The “original” is always a print, and the number of prints must be severely limited to control their value so the artist can make a living.

Animators are therefore marginalized within the fine art world.  Their work is the hardest to see, so fewer people know of them than artists in other media.  Critics, students, and art lovers can’t sit with the work and come to know it they way they can when good prints exist.  As a result, the entire field lacks a sense of history and development.

Large-scale mutoscopes can address this problem for Fernando and other animators that draw animations frame by frame.  A mutoscope is a circular flip book with it’s pages radiating out from a central binding, played in a mechanical player.  Traditionally they were used for photo reproduction of short peep show movies.  The Mutoscope for Fernando is for original drawings, and so must be  substantially larger (4″ x  3″ drawing area) than a traditional mutoscope (1 7/8″ square).   The Mutoscope for Fernando can accept reels of original drawings from 500 to 2500 frames in length, or 30 seconds to 3 minutes, playing back at 8-16 frames per second.

By drawing directly into mutoscope reels, Fernando can make his original drawings move, creating an original object bearing his mark as an artist that is also an animation.  Since it is an original,  “prints” may be made from it- movies of the machine in action- that have the same relationship that paintings bear to prints.  My hope is that mutoscopes can bring the same level of study and distribution to Fernando’s animation that paintings currently enjoy, strengthening the art world and widening his audience.

Between coats of paint and sealer, waiting for the last epoxy bonds to take hold, and tweaking the Mutoscope’s tripod I’ve played around with small mutoscope reels.  Last year I tried making one out of paper with a craft knife, but the accuracy of a knife and flimsiness of paper got the better of me.

Now, with the help of Matt, and Raphael, and especially Kelly at NYC Resistor’s craft night I cut a 500-card capacity hub based on the original dimensions of the Kinora. Wonderfully meta: the Kinora hub is laser cut out of spare Mutoscope cards.  A miniature mutoscope manufactured from a super-sized one.  If I can dig up the material and machine time I’ll cut enough cards to fill it.   Or you could make your own (here’s the .ai file).

Kris often finds works from another age whose techno boosterism is familiar, but whose object is odd to a contemporary reader. From the height of airship mania ( Zeppelin’s commercial air transport service was established a year later) and before airplanes proved themselves in the skies, Airships Past and Present (1908) is a fantastic snapshot of globalized tinkering and ingenious innovations:

In 1792, Uyton de Morveau recieved official instructions from Napoleon to develop military balloons.  Morveau developed a team with chemist Lovoisier and physicist Coutelle,  and together they developed a novel hydrogen generator that used a hot iron with steam passing over it, and a novel means of sealing silk balloons with 5 layers of linseed oil based varnish.  The varnish was particularly effective, holding hydrogen in the balloon for upwards of 2 months, but the recipe is lost to history.  The envelope of a hydrogen balloon capable of carrying 2 passengers to 1600ft  would weigh only 180-200lbs, in line with early 20th century numbers (134).

OR:

My favorite balloon of the period, the Parseval-Sigfeld, featured with hard numbers on wind speed (66ft per second).  Parseval invented the “sausage” balloon design that once refined was deployed by Germany, France, and to great effect Belgium in WWI.  But this text is of course from before the war (209, 211, 274).

The Process Enacted Mutoscope uses over 900 Polaroids, and is finished elegantly, but runs in spits.  One immediate refinement I’d suggest is to change the gearing.  It looks like it’s geared 1:1 or 2:1. I bet if they geared down the crank 20:1 or more the flipping of the cards would be much smoother. A worm drive is nearly ubiquitous amongst classic mutoscopes.
Sergey Gavrilenko, Director of the Museum of the History of the Development of the World Cinemagraphic Technology in Kiev, Ukraine, contacted me about his superb mutoscope, a historical reproduction similar to this one in the Eastman Collection.  More impressive than his mutoscope are his functioning miniature film projectors.   I wish there was a video of them running.  Movies on microfilm are another Atomic Age sci-fi dream dashed by magnetic storage.

Look for miniature projectors starting at 1:57 in this video

http://www.arcaspace.ro/