by Elektron8 @ instructables.com:
Welcome to this project. The CNC UNO is a small desktop CNC Mill that can be used for hobby engraving and routing, PCB milling and education. It is mainly made with 3D Printed ABS plastic parts and plywood. Before starting this project, please observe that this machine is not intended for precision work nor for cutting hard materials like metal. As the machine parts are made of plastic and wood, the machine will flex under heavy load and that is why this project is for fun rather than any serious application. That said, it is a great little machine for hobbyists that want something to play with without having to spend a fortune.
3D Printed Desktop CNC mill - [Link]
It is created with the same concept as RepRap, using 3D printed parts and some easy to find “vitamins” (non printed hardware).
I tried to make it as cheap as possible, by using cheap electronics and a “low power” laser (a laser diode).
The X/Y working area is fully customisable and the max working object height is up to 50-60mm.
The cutter/engraver basically uses the 3D printed parts, M8 and M3 size hardware (rods, nuts,washers and bolts), some small bearings and GT2 pulleys and belts. I got most of the parts from my “old” RepRap printer.
The X/Y working area is fully customsable by changing the length of the 8mm rods.
The electronics uses an Arduino UNO with a cheap CNC shield and two Pololu based stepper drivers to drive two NEMA17 stepper motors.
3dpBurner – A 3D printed laser cutter/engraver - [Link]
Peter of Cytec BG writes:
My idea was for pcb designers to be able to quickly, without too much hassle, check their board for correct footprints (especially for connectors) and collisions between components. Currently one can change soldermask colors, silkscreen layers, move and rotate components around, change component models and import step files.
3D Eagle BRD Viewer - [Link]
by Jan_Henrik @ instructables.com:
Hi, in this Instructable I want to show you how to create your own diffusor for a LED Matrix. To do this we will use a 3D printer and OpenSCAD. In this tutorial I will use a LOL-Shield by Jimmie ( http://jimmieprodgers.com/kits/lolshield/ ) also I will explain, how to design a diffusor for different matrix sizes and shapes.
As I recently was at the 31C3 in Hamburg i got a LOL-Shield from Jimmie. This shield is holding 126 LED´s which are Charlieplexed. After coding some animations and a game on it I thought that the LED´s where too bright. Because I wanted to keep the greyscale ( dimming ) of the matrix I decided to design and build a diffusor.
How to make a diffusor for your LED Matrix - [Link]
When MC Hammer rapped ‘You can’t touch this’ little did he know of the work being carried out by a group of scientists at Bristol University. The team led by Dr Ben Long and colleagues Professor Sriram Subramanian, Sue Ann Seah and Tom Carter have produced an ultrasonic sound system able to generate 3D shapes in mid-air that can be felt.
Tactile Holograms - [Link]
by mikelllc @ instructables.com:
This project describes the design of a very low budget 3D Printer that is mainly built out of recycled electronic components. The result is a small format printer for less than 100$.
First of all, we learn how a generic CNC system works (by assembling and calibrating bearings, guides and threads) and then teach the machine to respond to g-code instructions. After that, we add a small plastic extruder and give an overview on plastic extrusion calibration, driver power tuning and other few operations that will bring the printer to live. Following this instructions you will get a small footprint 3D Printer that is built with about an 80% of recycled components, which gives it a great potential and helps to reduce the cost significantly.
EWaste 60$ 3DPrinter - [Link]
by Lee Goldberg @ edn.com:
The CircuitMaker PCB design tool could be thought of as the electronics enthusiast’s equivalent of Picassa, the free alternative to Photoshop – except that it’s a got a much more refined interface which makes it easy use. The program’s 3D modeling capabilities (more about that later) and other advanced features will help designers deal better with the “lumpy” nature of LED lighting products, or any other design project which involves large, irregular components. But that’s only half of the story. The software’s creators have also taken an interesting approach to solving several important technical and economic issues which have arisen with the Maker Economy by borrowing a few lessons from the movement’s own playbook.
Free PCB design tool includes 3D modeling, crowd-sourced parts database - [Link]
Microchip Technology have announced a computer peripheral 6” touchpad which it claims is the first able to resolve 2D multi-touch and free-space 3D gestures. To detect gestures up to a distance of 70 mm from the pad surface Microchip have used their MGC3130 single-chip gesture recognition and motion tracking controller released in 2012. It works on the principle of electrical near-field sensing. The 2D touch functionality is handled by a PIC32-based PCAP controller type MTCH63104. It handles 12 Rx and 16 Tx nodes, which are located in the centre, on the top layer of the TouchPad PCB between the 3D GestIC Rx electrodes. Microchip’s MTCH652 line driver is used to provide the necessary Tx drive signal up to 18V. The 2D touch pad allows tracking of up to ten simultaneous contacts. Besides the 2D multi-finger tracking functionality, a variety of surface gestures are implemented. These surface gestures can be used, for example, for two-finger scrolling.
3D TouchPad from Microchip - [Link]
by Mike Senese @ makezine.com:
Arduino, known for creating an easy-to-use microcontroller revolution, is about to launch its own 3D printer.
The Arduino Materia 101 made its global debut earlier today on the official Arduino twitter account with a photo of a boxy white and teal FDM printer and a note that Arduino co-founder Massimo Banzi is showing the printer live on Italian TV. It also states that the printer will be presented next weekend at Maker Faire Rome.
In the image, the printer appears to have an LCD screen, a control knob, and a switch on the front plate. A filament spool holder with a matching color scheme sits attached to the right side. The mechanical bits are obscured, so details about its extruder or print bed size aren’t clear, but we’ll be looking forward to learning more shortly.
Arduino Leaks a Peek of Their Upcoming 3D Printer - [Link]