Turbines have awesome power in a small package. This one spins up to 60,000 rpm using the airflow of a standard vacuum cleaner, sounds like a 747 taking off, produces amazing power, and sucks up its own dust!

This is an opportunity for someone to make a successful product. I have no commercial interest, and would be delighted if anybody developed it further. A good start would be to source a batch of shafts and spacers for people to experiment with.

The spinning top is an simpler project, also there is a small hand-held turbine rotor just for fun.

Click "Open in Customizer" to turn the image of your choice into a Lithopane! We used the Mona Lisa, but you could use any photo you want. The Lithopane tool generates a 3D model that looks like a rough terrain map.

Download the file, print it on your MakerBot Desktop 3D Printer, and you've got a picture perfect pane to hang on your window.

Three cheers for the lithopane pioneers on Thingiverse, such as cymon and pp3dpNL! For more information on this old art form, check out the Wikipedia article here: en.wikipedia.org/wiki/Lithophane

This is an Adjustable Focus Liquid Filled Lens. You use thin plastic film and then inflate it with water. The water then under pressure, stretches out the plastic and forms a lens shape.

This is part of a system of prints that turns an OpenBeam into an optical rail. An optical rail is a long, straight, sturdy rail onto which optical components such as light sources and lenses can be bolted down and easily shifted along the length of the rail.

Commercial optical rail sells for $380/m ($115/ft). Open beam only costs $12/m for the fancy black anodized stuff. You get the idea.

This component is part of the open-source optics project, whose goal is to radically reduce the cost of scientific optical hardware: appropedia.org/Open_source_optics by the Michigan Tech's Open Sustainability Technology Research Group. mse.mtu.edu/MOST

Opensource High resolution DIY DLP 3D Printer Kit with RepRap technologies.

DLP 3D Printer uses a normal projector as shown in the pictures and prints with UV cure resins.

CUSTOMIZER CHALLENGE CONTEST WINNER - Artistic Category

This is a 100% printed customizable music box!

Only 3D printed parts are used in the design and it can be assembled and disassembled via printed snapping mechanisms.

The project originated when a friend of mine said that he'd only be interested in 3D printing once he can print a music box ;)

Videos
youtu.be/LUlovenI9xQ
youtu.be/K_c3p24RRtQ (made by banthafodder7400)
youtu.be/exNeQDz7f3g

I'll try to keep the .scad file on this page updated but to help me to manage the design and to make it easier for others to contribute: github.com/wizard23/ParametrizedMusicBox

Updated: Now with Facial Hair!

Inspired by the Nintendo Wii's "Mii", this thing is a 3D character maker - it allows the user to choose different facial features, hair, etc to make a custom 3D avatar.

Hyper-realistic 3D scans are becoming more commonplace, and this is not an effort to compete - think of this more as the cartoon version of yourself, or make up a character altogether!

A set of parametric OpenSCAD scripts that generate ready-to-print two-part molds from arbitrary STL models.

These scripts can be used to generate either **square** (with or without rounded corners) or **circular** two-part molds and are fully parameterized to make it easy to adapt for your application.

Refer to the instructions below for some general tips, as well ideas for casting.

I have successfully made casts from these molds using wax, Knox gelatin, Oogoo and chocolate. If you have success with other casting media, please leave a comment!

Many more pictures of molds and castings I made with these scripts:
flickr.com/photos/zenwebb/collections/72157631531182783/

If you'd like to read about the development process for these scripts, and learn from some of the issues I came across, check out:

- jason-webb.info/?p=4741
- jason-webb.info/?p=4892

If you really want to bring your molds to the next level, you can even try the "lost ABS" (or lost PLA) process to turn it into metal: jason-webb.info/2012/11/lost-abs-experiment-with-3d-printed-objects-and-aluminum-casting/

I have also uploaded a parametric open-face mold generator to create positive and negative molds: thingiverse.com/thing:32657

This thing is a Michelson interferometer,

en.wikipedia.org/wiki/Michelson_interferometer

It can be used to measure relative motion with nanometer precision and accuracy. This is done by counting interference fringes generated by the constructive and destructive interference of coherent light. A transition from constructive to destructive interference corresponds to a movement of half the wavelength of the light used.

It consists of a laser holder, laser, a beam splitter, two mirrors, a diffusing lens an optional photodetector and the framework for fixing the position of all the parts.

Good luck implementing it as a position feedback system on your 3D printer ;-)

It's mostly based off of a kinematic mirror mount thingiverse.com/thing:30727

Video demonstrations:
youtu.be/IsIFKxLLVd0
youtu.be/0OLO-GWjg9E

There are two images include that show the interferometer mounted vertically. These were an attempt at making a load-displacement testing tool. Unfortunately the vibration in the linear actuator was too great, making displacement measurements erroneous.

Next step is to mount a piezo buzzer behind one of the mirrors to determine its stroke.

This is a processing sketch that generates Eagle BRD files for a heated bed based on parameters you specify. You can make it whatever size you want and use trace widths and spacing as needed to get whatever resistance you want.

THIS HAS NOT BEEN TESTED! I suggest making a small cheap board with an easy to measure resistance like 50 Ohms or so, ordering it through a cheap service like BatchPCB, and verifying that the calculations were correct! Throw on a cool design and you can make coasters out of your example boards. :)

This sketch uses Processing 2.0 (not 1.5, though it could be modified for that - look at the XML handling) to generate a native eagle BRD file using their new XML format, so everything is nice and clean.

Generate a board file, look at the Processing output window to see what the resistance, current, and power draw will be based on your input voltage (I can't guarantee those numbers are correct! I haven't tested this yet and I admit I wrote it pretty quickly - its more of an example. You should double check the length calculation section of the code - god forbid I messed something up and you waste money on a bad run of boards!)

The files are hosted on Github, so check there for any updates:
github.com/tlalexander/ReprapHeatedBedGenerator

This nice thing attaches to your Dremel and lets you make your own M8 knurled bolts for your extruder. Technically speaking it's a "spiked" bolt, not a knurled one, but it's close enough. :) And yes, the name is supercheesy, but I like it anyway.

I made this because the standard Ultimaker knurled bolt doesn't fit the extruder I'm currently designing.

It's modelled in 3dsmax, so no openscad files, sorry :( If anybody wants to make a parametric version be my guest.

Couples a 5mm motor shaft to an 8mm threaded rod, ensuring they are coaxial, but allowing some angular movement if the rod is not straight. See hydraraptor.blogspot.com/2011/06/yet-another-prusa-z-coupling.html.

Just a little gimmick and a printing test:

A sunken coffee mug...

Take a side photo of someone you know, import it into sketchup, trace their profile. Give it depth, export as an STL file, print it out, buy a 4x6 frame, a little blue tape on the back and voila! A great gift! We're thinking of making a bunch of these for Christmas gifts this year. Fast to print and have a really neat modern/retro look when framed.

The Lyman Filament Extruder is a machine that extrudes filament from pellets for use in a 3D Printer. It can extrude 1.75mm and 3mm filament with easy nozzle exchange. The material cost is about $250.

This is a mirror holder for optical experiments.

This component is part of the Open source optics project, whose goal is to radically reduce the cost of scientific optical hardware: appropedia.org/Open_source_optics by the Michigan Tech's Open Sustainability Technology Research Group.http://www.mse.mtu.edu/MOST

An articulated Trilobite to print and assemble. (If you like Trilobites - have a look at 4MULE8's beautifully organic Comura Articulatum thingiverse.com/thing:60521 )

Unlike the fossil ones you see in museums, you can have fun flexing and rolling this trilobite up - bit like a woodlouse (or pill bug.) It makes a satisfying clacking noise if you ripple the segments.

You can make baby trilobites by using just the smaller body sections. Whole trilobite families, or even armies, can be yours for the printing.

This creature is very inquisitive and can often be seen peering over people's monitors or shoulders.

Jasonwebb has done a short video (with sound) showing it moving vimeo.com/47692125 and Busybotz has kindly included it in one of his excellent 3D printing videos youtube.com/watch?v=LGNg37Fc584 (starts at ~3:08) and 3dprintblog.blogspot.co.uk/2012/09/3d-printed-parts-assembled-and.html (starts at ~1:45).


I'm thinking about other designs of body (with spikes), head (more plate-like, and with more spines) and tail (spikes, and more spikes). Comura looks fun en.wikipedia.org/wiki/File:WLA_hmns_Trilobite_Comura_sp.jpg

If you're interested in trilobites, Richard Fortey's book "Trilobite! - eyewitness to Evolution" ( amazon.co.uk/dp/0006551386 ) is a great read; and I found trilobites.info/ fascinating, especially the eyes section trilobites.info/eyes.htm

I've included a photo of the fossil trilobite that gave me the idea to make a stylised, flexible version.

Adafruit Pi Box - Enclosure for Raspberry Pi® Computers

adafruit.com/products/859

Adafruit invests time and resources providing this open source design, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Creative Commons Attribution, Share-Alike

Keep your Raspberry Pi® computer safe and sound in this lovely clear acrylic enclosure. We designed this case to be beautiful, easy to assemble and perfect for any use (but especially for those who want to tinker!)

The case comes as 6 pieces that snap together, made of crystal-clear acrylic. This ingenious design has no screws or standoffs and there are cute little feet cut into the sides so that it stands up above your desk. There are engraved labels on all the connector slots. You can use all of the connectors on the edges of the Pi: HDMI, Audio, Video, SD slot, micro USB power, Ethernet and the two USB ports. We also added a slot so that you can connect a 26-pin IDC cable to the GPIO breakout pins on the Pi and pass it though the case. For more advanced hacking, the enclosure is designed so that you can remove the top piece and plug any sort of cables you wish into the breakouts in the middle. The case is airy enough that no additional vents or cooling is required - we tested the enclosed Pi over a 24 hour period at full load with no significant increase in temperature.

Complete assembly instructions available at Adafruit:
wiki.ladyada.net/products/pi-box

All text above must be included in any redistribution.

If you sell these keep the text as is on the files and do not use "Adafruit" as the product name, customers will be confused!

I used Emmett's rotating gear code from the heart gear, and mashed it up with the CT scanned skull. I tried a few orientations, I like this one the most because it splits down the middle of the face.

If you can't yet print, or don't want to for some reason, we'd be happy to print & ship it to you through our etsy! etsy.com/listing/104700095/skull-gift-3d-printed-rotating-skull

Nautilus gears based on logarithmic spirals. The gear profiles were generated using this Maple script for which full credit goes to the original author:
maplesoft.com/applications/view.aspx?SID=95483&view=html&L=G

Rendered animation of the gears: youtube.com/watch?v=dtkEyZwuwH4

I'm not going to upload the SolidWorks file because it is frankly a mess of different experimentation, but I uploaded the DXF which should be easy enough to modify with most CAD software.

Update: No more breaking pins!

I've replaced the pins with a simple press fit design. Print two of the Connector Bar v2 or the Curved Connector Bar v2 (same idea, just curved for aesthetics) and snap them together! On a well calibrated printer they should snap together easily and hold tightly with friction.

If they aren't sticking together just add a drop of glue! Warning, these bars are one time use, they will be very hard to pull apart without breaking the pin.

I will keep the original bars on for reference.

Claystruder 2 is a prototype for paste extrusion that is build around a standard fairly lowcost disposable industrial auger extruder. This design is a testbed and not meant as an elegant design. Read about this extruder on unfoldfab.blogspot.be/2012/08/road-to-better-paste-extrusion-episode.html

This is a Geared Peristaltic pump, designed for 3D printers to enable them to extrude various materials for building objects.

It's a work in progress, updates will follow, but the basic principle is up-and-running.

This Pump is designed to fit my Quick-Fit X Carriage - thingiverse.com/thing:19590

6-Jan-2013 - Uploaded Sketchup files

I'm leaving Thingiverse after seeing updated Terms of use thingiverse.com/legal , over next few days I will remove all my stuff. It will be downloadable on my website josefprusa.cz or reprap.org I prefer to by owner of my own designs :-)

We are not trolls, as Raldrich said

"The fact that the legal ramifications of MakerBot's TOS weren't discovered until today doesn't magically give them a free pass.

The fact that they don't intend (today) to exercise the rights they've granted themselves also doesn't magically give them a free pass. Companies change - take a look at their stance on Open Source Hardware."

Also Replicator 2 is Closed Source, at least everything looks like it and guy on Makerbot support phone told me so.
Check out my open letter to Bre Pettis here josefprusa.cz/open-hardware-meaning/
Help out by spreading the word! reddit.com/r/Reprap/comments/10642q/open_hardware_meaning_josef_prusa/
slashdot.org/submission/2267155

Link it, tweet it, comment it! Help the cause and show them we want it Open Source!

First alternative garyhodgson.com/reprap/2012/09/githubiverse-a-github-pages-template-for-3d-printing-projects/

Print the Test Cube as ugly as you can and post picture of it as "I made one" :-)

Jo Prusa, RepRap core dev

The Bukobot Fly was originally made to test out some features of my Bukobot 3D printer prototype and experiment with thin layers. Then I got curious to see if I can actually make it fly..and I did!

First 3D printable hand glider?

Not sure if it's the first flying 3D printable mini airplane, but I couldn't find one anywhere that was small enough to fit on 8x8 platform and didn't require motors.

The Bukobot Fly has a 9" wingspan and 0.4mm thick wings.

VERY CHALLENGING PRINT!!!
This might be a tough print to do. It took me a few tries to get a decent first layer for the wings because the crappy PLA I had was very inconsistant in thickness... But if your platform is level and your material is good, it should work. Layer height should be set to about 0.1mm with a very flat platform and I recommend using PLA for the stiffness. Also, platform needs to be at least 7x7 inches to print at 100% size, not sure if it'll work any smaller, but should work bigger possibly.

Printed on a Bukobot 3D printer thingiverse.com/thing:21746

UPDATE!!! I got video of it flying!!!
youtube.com/watch?v=xQsI0d0aw8Y

Ardusnake is an Arduino Library for generating easily the locomotion of modular snake robots or other modular robots. It is based on sinusoidal oscillators which drive the servos.

Here you can see a video of the locomotion of a 2-module worm:

youtube.com/watch?v=jbBX5QE6ZFk

It also work for longer worms or even snakes (I will add more information about it on the future)

You can find more information, examples, tutorials, pictures, etc in this wiki:

iearobotics.com/wiki/index.php?title=ArduSnake:_Arduino_Modular_Snake_Robots_Library

and the github repository:

github.com/Obijuan/ArduSnake

I created this Bowl using the bottom mesh of a Truncated icosahedron, then some Organic post processing.

Size: 150mmX150mmX80mm
Suitable for plastic printing or Glazed Ceramics.

A 40mm x 40mm x 34mm Planetary gearbox designed to be mounted to a Nema 17 motor. It's gear ratio is 4.444:1 (40:9 for those who dislike decimals).

Version 2

Now supports an M8 bolt for the output by default.

Changing the output size no longer requires reprinting the entire assembly - just print the top half of the planet frame, and the cover.

If you want the M6 version, print m6_output.stl as well.

If you've already printed the M6 version, and want to convert it to M8, print m8_output.stl.

Warning! This is difficult to print. Unlike Jag's design it doesn't have a lot of overhangs, but the gear teeth require a lot of precision.

Brittle Stars are one of my favorite Echinoderms, they are all over the Southern California kelp forests, and can often be found washed up on the beaches in the holdfast of a kelp plant that has lost its grip on the rocky bottom.

this is my first attempt at designing something in 3D in SketchUp and I'm rather happy with the way it all turned out, it has been a great learning experience. Skeining returns some errors, the .stl was repaired with netfabb studio and re-saved after being exported from SktechUp.

printed on an emaker huxley with a 140x140 bed. could be much bigger on a larger bed but I really like the scale and they seem more like the real thing at this size.

after printing a couple of the Snakes: thingiverse.com/thing:4743 I kind of got the idea and it just happened. some of the early prototype versions can be seen in the pics.

fits nicely into a small zip lock bag to give away to someone who doesn't yet have a 3D printer.

designed to allow a reasonable amount of movement in the legs. feel free to stop motion animate. the legs are thin enough to be heated and formed to any shape, or taken off the bed hot and set into shape.

This is a universal paste extruder for RepRap and other 3D printers.

It allows you to experiment with various pastes on your 3D printer without the need for any air compressor equipment or valves etc.
It simply uses the existing Extruder motor output from your printer’s electronics.

It's designed to fit on the Quick-Fit X Carriage Thing 19590-

thingiverse.com/thing:19590

And it will also fit on Prusa and Greg style X carriages.

7th-4-2012- Split and added Gear set on two plates for Cupcake and smaller build-bed machines.

11-April - Uploaded Sketchup Source files (sorry for the delay)
I challenge you to make one that works with 50ml Syringes! or do a fully parametric version in SCAD :)

And a very big thank you to Greg Frost (and derivatives) for the wonderful work done on the Parametric Involute Bevel and Spur Gears script, without this, the gear set would have taken me a lot more time to make.
thingiverse.com/thing:3575

Figurine of a sitting lady. All credit to the model's respective artists. Printed with both Prusa and custom resin printer using A2Sheds resin: bucktownpolymers.com/polymers.html

code.google.com/p/lemoncurry/wiki/main