I 3d printed these parts for universal joints, first using the solid white, then I used a blend of black and white (so it was sort of soft)
This is one type of joint that i thought might work for a snake like robot that can be articulated at each joint in more than one axis.
more to come – just a few photos – thanks to the action shots by Jason Stevens (thanks!)
Rapid Prototyping, and open-source 3D fabricators
From idea to item in 2 hours!
I am an open, hackable robot for making nearly anything.
The basic structure of a MakerBot is:
A 3D positioning system.
A toolhead that does work.
Electronics to drive it.
WHAT IS THE DIFFERENCE BETWEEN THE CUPCAKE AND THE fab@home
Find out more aout cupcake
are there other ones out there?
The Fab@Home Project is an open-source mass-collaboration developing personal fabrication technology.
It makes DIY 3D fabrication possible from home. It is a widespread group, started in 2006, comprised of members developing novel hardware, software and other tools for digital fabricators, as well as and users using it to make unique items.
Create a web page with your research and link to the entry below
On the date mentioned, be prepared to give a 5-10 minute presentation.
Don’t just search online, call or email service providers.
Your research should include the following:
DIFFERENCES: fab at home is an academically developed project
-price to make ?
Description of the fabrication method.
The fabrication is rapid prototyping / 3d printing:
syringes are powered (through two gears to a plunger) by a motor – the newest model 2 uses snap motors which can be powered using CAT-5 cables
images and videos of the machines and the parts it creates.
Materials supported by the machine.
It can print with any material that can be extruded through a syringe and retain its shape at rest – this ranges from silicone to chocolate frosting to biomaterials.
A deposition tool is a device which is mounted on a Fab@Home chassis, and which can deposit material in a controlled fashion to allow the Fab@Home system to build up a three-dimensional object, layer by layer.
dual or single syringe tool
if you want to do plastic printing: a thermoplastic tool can be used
A milling/cutting tool is an alternative attachment for the Fab@Home that converts it into a CNC or foam/vinyl cutter.
For example: Dremel Milling tool, vinyl cutting tool,
Sizes supported by the machine.
Special design considerations (number of axis, strength of material, wall thickness)
Don’t know if this fits in this category: one thing that really interests me is the : LPC2148 microcontroller chosen. Why?
National, on-line and local service providers.
Pricing, per parts, and if there is a tooling/ setup cost
if you’re not so into the DIY aspect, you can buy the kit : for a fab@home 2 syringe system kit – 2500 dollars;
There is a Fab@home catalog with all the items available as a kit or separate. But they are also off the shelf (home depot, radioshack, Ponoko, mcmaster, saelig, sdp/si)
you can ALSO order a fully assembled 1 or 2 syringe system for 2500 or 4500
Download CAD files for all the system parts also (like the chassis, which is generally custom made out of plexi)??
File type requested for fabrication(DXF, STL…)
1. Find or design a 3D model (.STL) of your thing.
2. Use Skeinforge to convert your STL into a GCode file.
3. Use ReplicatorG to run the GCode and build the thing.
Model 1: Standard electronics :
The Fab@Home Model 1 standard electronics package includes:
An LPC-H2148 Microcontroller, the brain of the Model 1, with a USB connection to your personal computer
A Xylotex 4-Axis stepper motor amplifier, to provide the power and control signals to the motors which move the Model 1
A Winford Engineering DB-25 breakout board, which simplifies the connections between the amplifier board and the microcontroller
Or an electronics variant
Model 2 :
uses Snap motors (integrated servo and controller modules, run off cat 5 cables)
hardware is off the shelf: software is opensource a C++ library is underway
wide range of materials – silicone, cement, stainless steel, cake frosting, and cheese. Some of our finished products include a battery, a flashlight, a bicycle sprocket, toy parts, and various food products