Hexacopter polycarb arms

No succes

Since the Maui Makers are in a bit of a transition phase, it was not a much we could do in the current Makerspace. But as a true maker he is, Jerry has a Epilog lasercutter in his garage. After some forum scanning on polycarbonate, I decided to try out some careful laser cutting of polycarbonate arms for a new Hexacopter body. Unfortunately the 1/8 inch polyarb did not cut very well at all, and the rubber plastic bending strip I bought did not provide enough heat to bend accurately. So after a day of cutting and inventing double folded clamped bending tricks I was left with a bunch of imprecise Continue Reading →

Hexacopter crash in San Francisco

Picture by Cassandra Niki S

Epic fail while trying out the new KKmulticoper 2.0 Flightcontrol board. It seems like sloppy calibration and speed reading the manual rewarded me with six broken Hexacopter arms. It was also my first attempt at controlling the multicopter with my smartphone and the Kickstarter funded iPhly device. Definitely a steeper learning curve to fly by touch screen and gyroscope than traditional joysticks. Amazingly all six birch propellers survived, perhaps saved by the Continue Reading →

Wood joint with locking wedge test

new ideas

With some new ideas from the Japanese woodworking traditions, I tested out a locking wood joint principle. As the wedge gets hammered into the slot, it breaks the thin walls loose. The result is a sort of click joint that locks very well with the help of a lasercut 6mm wedge. After the initial hammering, you can insert and remove the wedge with your hands, yet the joint is Continue Reading →

The Rocket Scientists of the University of Tokyo

decifering the ardupilot

In tokyo I met aspiring FabLab nomad and PhD student Shohei Aoki. Together with his colleagues Shoehei did his best to help make the ArduPilot board work with the Hexacopter, but no success. Starting to wonder if the board is broken. One of Shohei’s colleagues is developing his own microcontroller for a Quadcopter. He even 3D printed his own frame which is pretty cool. I gave some tips on how to CNC mill propellers and Continue Reading →

Layer Chair iteration by Nick Graham

Layer stool by Nick Graham

This Layer Stool was created by Nick Graham at FabLab Wellington, New Zealand. Nick loaded his custom profile curves into my parametric design system to make a stool iteration of the Layer Chair series. Nick is a generally awesome guy doing a master in Open Design at Massey University. More info about the stool and Nicks research here. Great experience to be surprised by someone finding new possibilites with an open design.

Nick also invited me to participate in his Exquiste Corpse design experiment, where three participants had to design a part of a chair without knowing what the other two had designed. Nick designed the four legs, and Continue Reading →

Fujimock – Redefining material sourcing and processing

Making planks

FabLab Kamuakura have very interesting project about forests, material processing and design running. Fujimock is about defining new methods and workflows for harvesting local Japanese timber and how to design meaningful products with this raw material. In Japan more and more imported timber is being used over local timber. This is due to many factors, most importantly high domestic labour costs and cheap international transportation.

I was lucky to able to join one of the events, organized in collaboration with a sustainability and forest management organization behind mount Fuji. The participants spent a whole day in the forest learning about the ecosystem, forest management and how chop a tree Japanese style. For many of the participants it was their first time in a forest, let alone touching a saw, so you can safely say it was an entertaining experience. Continue Reading →

Lasering Pixelglasses at FabCafe

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I couldn’t allow myself to visit FabCafe to only talk and not make anything. So I returned and had one of the best espressos of Tokyo while I worked out a parametric Pixelglasses definition in Grasshopper.

You define the outline of your glasses with a vector line that you load into grasshopper. The size of the pixels depends on your material thickness. You can set the length and width of the glasses as well as the opacity of the hollow pixels. They work by the same principle as the shutter shades made famous by Kanye West.

The download link features some of the designs I made in collaboration with friends and visitors of FabCafe as well as the parametric system. The Grasshopper definition is slightly buggy and still work in progress. Contact me if you get stuck.

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Master mould for prototyping prosthetic feet

master mould - finished-scaled

I designed and CNC milled a two piece mould foot that can be used to create negative soft rubber moulds. These moulds can be used for experimenting with different casting solutions and techniques. The positive master mould can also be used for shell forming techniques with a leather and other materials. Continue Reading →

Experiments with natural fiber – Sourcing local materials

natural fiber composites

An important criteria for the low cost prosthetics program is cheap and locally available materials. We started experimenting with local fibers that can be found throughout Indonesia. In combination with a resin they can form strong and lightweight parts, especially the pineapple fibre looks promising. Next step would be to find a local polyurethane like resin made from biological ingredients.

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The Arak purse – Wet forming leather test #1

Next challenge is to make shoes

I finally seized the chance to experiment with wet forming leather. Since it was Tommy’s birthday and I had a bottle of Arak to share with him, I decided to try to mould the leather into a nice giftwrap. Continue Reading →