Workshop

The latest DIY ideas, techniques and tools for the industrial arts from metal and woodworking to CNC machining and 3D printing.

Ultra High Performance Double Pendulum

Ultra High Performance Double Pendulum

We covered Flickr user yamamo2’s (and his father’s) first high-performance double pendulum build back in 2009. The first version would swing for about 10 minutes, without added energy, after being started. The latest version swings for fully twice that, as the embedded video—all twenty-two minutes of it—thoroughly demonstrates. I haven’t seen any info about the design changes required to achieve this level of performance, unfortunately.

Lower East Side Girls Club Gets Airstream Trailer on the Second Floor

Lower East Side Girls Club Gets Airstream Trailer on the Second Floor

Early on a recent Friday morning, a crane hoisted an old Airstream trailer onto the second floor of a building under construction in the Alphabet City section of Manhattan. The shiny aluminum trailer (circa 1958) is destined to become a recording studio inside of the Lower East Side Girls Club, currently just a concrete shell on Avenue D between 7th and 8th Streets. There was not much clearance to slip the 23-foot long trailer onto the second floor –only 20 inches– so the chilly autumn air was fraught with anxiety as the 2,000 lb. trailer rose off a flatbed truck.