- connecting past and future -

MakerBot Thing-O-Matic

Ok, one could argue that it is cheeting, but before the PrinterPrinter is ready, I thought of taking a shortcut by building a makerbot first. The Thing-O-Matic works right out of the box (and about 200 m3x16 socket screws later):

18-servo walker

New A4 flat-kit design: a 18-servo 6-legged hexapod. It does not walk (yet) but servo control works and the mechanics look good: All parts can be cut from a single A4 sheet of acrylic glass. Other parts include 18 miniature servo’s (selling for 5EUR as TopLine mini-servo ES-05 JR (at Conrad Electronic)) and an ottantotto…

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Standalone dial-a-song

Using a telephone retro-interface and Arduino wav-shield-derivative a box has been build which allows you to use an old rotary phone as standalone dial-a-song system. This makes an excellent CD-pre-listening device for our CD-sales stand at concerts. The system is fully documented (including schematics, software, PCB layout) on the wiki. Although numerous designs have been…

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Flatpack Walker with Sensor

As presented for the first time on FAB6, using a Sharp gp2y0a02 sensor the flatpack-walker just got a little bit smarter. As long as the distance sensor is triggered, the robot walks backwards. The code is still pretty simple: [sourcecode language="c"] // avoid obstacles using Sharp G2P sensor on Analog 0 #include <Servo.h> Servo frontservo,backservo;…

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Beamer autostart

For a public display a beautiful LG HS200G LED beamer has been used which can play from USB data sources. However, no autoplay – autostart function was included. The beamer has been connected to a power source with timer switch. However, somebody still needs to push the on-off button, go trough the menu etc.. The…

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Spark Creativity? Don’t get out of the box. Design your own box and think from within!

For years I have dismantled old printers, clocks, radio’s, disk drives, got all the screws out and sorted them in neat little boxes, taking the plastic gears, bearings, etc.. and storing them all separately. This all resulted in a workshop with a large amount of boxes, drawers, cabinets, all filled with a wealth of electronic…

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Locative media – phone

Although most modern telephones have GPS installed – this project takes things a little differently. An old rotary phone is connected using the phonebox to a GPS antenna. Stories are being recorded and stored with location data in the device. When the device re-visits the location, it will give a phone call using the earlier…

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PhoneBox: retrointerface for phones

Yezz! another retrointerface ready. The phonebox simulates all necessary signals to operate a rotary-dial style telephone to any other device. Dialed numbers are put through to a serial port. For audio connection a line-in and line-out are given. The board puts a 12V line-voltage on the phone, and can also generate the 70V – 20Hz…

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Repstrap V2

Some time ago I tried rep-strapping using 5-1/4” diskdrive motors and MDF wood. (see here). The motors turned out to be way too weak, the M5 thread way to slow. Perhaps a larger thread (M12) and some bigger steppermotors can save this evening of work. In this second attempt I have been using only the…

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mouse encoder

Old ball-type Mice make perfect resources for rotational encoders. There are however numerous different sensors. Some have plain photodiodes, some have IC’s which do part of the converting to TTL signals. Last is the case with plain old logitech mice (the ones with encoder wheel). Simply hook up the first two wires to Vcc and…

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