This is the real deal, no derivatives here. These are the real Printrbot in it's current version. I have a bunch of these printing all day, every day.... it works. It is expandable to larger widths and heights easier than any other reprap out there. Period. Its the most inexpensive bot out there being mass produced. And, its now yours to print, build, improve, change.... whatever you like. I can't wait to see what you do with it. I will post pics of all the various forms it takes, news, etc at printrbot.com
-enjoy
Brook

This thing will create a range of metric and imperial tooth profile pulleys, with any number of teeth, specified in the Openscad file.
Tooth profiles currently supported are MXL, 40DP, XL, H, T2.5, T5, T10, AT5, HTD (3mm, 5mm, 8mm) and GT2 (2mm, 3mm 5mm).
There are a range of editable parameters for editing the fit of the tooth (to account for printer variation), the pulley base, captive nut(s) slot for the set screw, motor shaft diameter, pulley height and belt retainers.
The attached stls are reference pulleys, mostly around the size used on repraps.

Details
After creating the parametric pulley thingiverse.com/thing:11256 I realised this way of modelling them was only going to work for square-toothed pulleys, and a way of producing pulleys for belts with better characteristics for linear motion was required. I found dxf drawings of the relevant tooth profiles here oem.cadregister.com/asp/PPOW_Entry.asp?company=915217&elementID=07807803/METRIC/URETH/WV0025/F and modelled pulley diameter from data here sdp-si.com/D265/HTML/D265T016.html
There were a couple of possible approaches to importing the data, I chose to simplify the bezier curve dxf data in Inkscape, producing vertices with a resolution of around 0.05-0.1mm for each tooth. Another advantage is the the pulleys have the tooth ramp for smooth entry and exit of the belt tooth into the pulley. I'm not really sure 3D printers can take full advantage of this yet, but quality is improving all the time!
If other tooth profiles are required, or you model any, please pass them on to me and I will include them.
Not printed yet... I'm away for the weekend! I'll upload some photos when I do, on Monday.

This is the Quantum ORD Bot. It is 3D printer mech platform made from MakerSlide linear bearing. It is extremly ridged and very easy to build. The design can easily be scaled in X,Y and/or Z by simply changing the Makerslide lengths plus belt and leadscrew lengths. This is the mini or 'Quantum' version. The parts other than MakerSlide are either off the shelf standard items or easily fabricate with a laser cutter, 3D printer or CNC router. There is a blog post giving a lot more detail.

buildlog.net/blog/2012/01/the-quantum-ord-bot/

As a reference point, this size uses less than $15 worth of Makerslide extrusion. You also need about $45 worth of MakerSlide wheels, spacers, etc. The Makerslide parts are available at the MakerSlide store. Be aware the rail is released in weekly 'production batches' and sells out very quickly. It is 'restocked' on weekly basis.

I have attached the complete 3D design in STEP format plus a DXF of the flat parts. If I can generate enough interest, I may have about 50 sets of parts fabricated and offer kits. That would be for the mechatronics platform only. The extruder, electronics, etc would not be included.

Why spend $200 for a set of printed parts when you can have everything you see here, including motors, belts, pulleys for about $200?

Planned changes.
1. I plan to change the crossbar handle thing to an extrusion to make it more scalable.
2. The 'quantum' design currently uses NEMA14 motors. I plan to tweak the parts to be compatible with NEMA17. This just adds a second pattern to some parts.

My girlfriend challenged me to make a hand soap dispenser that is cooler than anything we could buy at Crate & Barrel (or similar stores). The result, after a number of design iterations, is this bottle which now inhabits our bathroom.

This dispenser is designed to reduce waste in a number of ways. First, it is easily refillable, and so can be used for many years. Second, as the pump is turned, liquid soap spills from the spout back into a hole in the bottle, thus recycling any drips. Third, this design makes it easy to get as much or as little soap as you want, while commercial soap pumps often dispense more soap than necessary with a single squeeze.

This MendelMax inspired printer is compact, lightweight, and totally self contained. Nothing protrudes beyond the frame. Z axis motors are mounted low, and thrust bearings carry the weight. Note that the z axis uses the aluminum extrusion for a guide, saving space and expense. The linear bearings and belt and pulley upgrades give high quality prints. All dimensions are chosen so that you can use 4 smooth rods and 2 threaded rods, plus all other parts from you mendel.
All parts are easy to print without support. The 60 W onboard power supply runs the motors and extruder heater. The heated bed used a 120 vac and a solid state relay. The extruder is very accessible. The heatsinks on the extruder are optional, but help keep thing cool when printing ABS.

The extruder is at thingiverse.com/thing:16143

See BOM and exploded veiw of X axis below

I added a pdf of an exploded frame drawing 1/19/12

Wire clips and T-slot cover for Misumi extrusions are at thingiverse.com/thing:16344

Below is a zipped archive of all the Inventor source files.

New pdf exploded printer drawing below. 1/27/12

Check out the animated assembly at the bottom of the downloads. A few things are out of sequence and it's low res, but may be useful.

This is one of the best wire strippers I have ever used. If setup correctly, it can be very precise and give feedback telling when the blades have cut deep enough.

Use:
Sight down the blades.
Align the blades with where the wire should be stripped.
Move the wire into the blades having the blades cut into the insulation.
When the blades cut through the insulation and contact the wire the LED will light.
Spin the wire or the tool to cut the insulation completely around the wire.
Remove the wire from the tool and pull off the insulation.

Long Long ago in a land far away, there was a little castle surrounded by an industrious town. The townspeople loved their little castle and wanted it to be perfect. But the little castle was empty. Its owner had left long ago, taking all the fine things with him and locking them away.

The Townspeople resolved to re-furnish there castle. They learned to craft and create. Making chest and chairs, tables and beds, gadgets and gizmo's, they filled the castle with things that reflected themselves and their experiences. They created so many things that at the end of each day it looked like little castle couldn't hold any more.

But the castle had a secret. Every night, it grew. Sprouting new towers, chambers, and cellars. The town's people would awaken and rejoice, ready for another day of crafting and creating. The town was proud of its magical castle, and everyone wanted to fill it with the best that they could offer.

But wasn't a magical castle, it was a MakerBot Castle.

Each night the daring Damsels deftly deployed their wondrous Replicator, creating new rooms to extend the structure. Floor by floor they built up into the sky. Until one day the little castle had become the tallest and grandest in all the Thingiverse.

And the small town around the castle had grown into a great city, filled with the incredible things and spectacular ideas. The Makers, Crafters, and Hackers had learned from furnishing the castle. They had perfected their crafts and honed their skills. When they looked out on the world from the tallest tower, and saw that it too was a place they could rebuild. And they spread across the land, sharing their knowledge and teaching others how to improve the world around them.

Created by Thingiverse user Skimbal, designer of the Turtle Shell Racers, MakerBot Botmobile and the Gothic Cathedral Playset.

FOBO is an autonomous, statically balanced walking robot. Yes, this one actually walks under its own power! It is the fourth prototype from Project Biped (http://www.projectbiped.com).


A full overview (with source Blender files) can be found at the Project Biped FOBO website:

projectbiped.com/prototypes/fobo

walking info:
projectbiped.com/prototypes/fobo/walking-cycle

more pictures of the actual robot:
projectbiped.com/prototypes/fobo/photos

FOBO avoiding obstacles:
projectbiped.com/prototypes/fobo/navigation

Controlling FOBO with a Kinect:
projectbiped.com/prototypes/fobo/kinect

A while back, a friend of mine asked if I could make her a version of a Fox 40 whistle.

Originally, I tried to make one in Google Sketchup but the result was unprintable. Then I made a close replica in OpenSCAD, but that didn't print well and didn't make any sounds.

So, I decided to go after a design that accomplished the same thing (2-tones & pealess) but had a more printable form. It took me 8 iterations, but I finally got it :)

Storage system for storing various things. Developed from the simpler parametric compartment box by adding two new cool features: (optional) rounding of all compartment corners to prevent the pesky nuts and bolts from hiding in the corners to avoid being used, and handles plus some new OpenSCAD modules for creating a cabinet of drawers.

Forward Brave Astronauts!

Journey into the farthest reaches of the Cosmos and be among the first humans to see the wonders of our Thingiverse.

Your daring MakerBot crew risks all for science, adventure, and our distributed-manufacturing future!

Created by Thingiverse user Skimbal, designer of the Turtle Shell Racers, MakerBot Botmobile and the Gothic Cathedral Playset.

130mm RC PLA printed Buldozer
with servo motor and gears
laptop batteries
7805 voltage regulator
"all functions" each thread and the arm.

This is an implementation of Nikola Tesla's "Valvular Conduit" that acts as a one-way-valve without any moving parts.

blog.makezine.com/2012/01/05/the-tesla-valve-one-way-flow-with-no-moving-parts/

This implementation follows Tesla's patent diagrams, perhaps too closely. It works, but the cap is a bit leaky so I plan to re-design it in the future.

I designed this to be able to use my Dremel tool & extension shaft as a small cutoff saw. It can cut about 1/4" (6mm) diameter stock in a single cut, or 1/2" (13mm) by turning the stock.
Requires an extension shaft with a 1/2" diameter handpiece; unfortunately, a lot of the extension shafts currently available have contoured handpieces and won't work.
ZIP file contains source files from Solidworks 2011.

this is a proof of concept in the use of driving more than 2 filaments (3 here) using 2 motors. one motor drives the filament while the other drives a cam that pushes the filament into the drive shaft.
i am currently preparing to test this, but wanted to get it out there. current issues are that is does not have good access to the drive mechanism for cleaning or feeding filament and that much of it was designed to be machined instead of printed. the side plates are to big for a cupcake, but i ws able to print a few of the pieces on one. it may also not be compatible with other motors until there is a redesign, as the motors are integral to its strength.
if anyone has improvements, let me know.
EDIT: added an IGES assembly file(let me know when you find its broken, and how to fix it) and SW2005 part and assembly files. also added an exploded image
EDIT: lookes like this has been worked on a bit already by wildseyed thingiverse.com/thing:10783 . not sure if i should list it as derivative.
Finally got more than 1 hot end functional at a time, so to check out the filament drive in action see youtu.be/CVaYHlLkvWM
and youtu.be/yqAGEqaoPg4


it works! all 3 filaments running:
youtu.be/po8KyagUsY4
youtu.be/-X-azhcsqdM

Here are all the 3D printed parts for the RepRapPro Ltd version of Huxley. Despite what it says on the left, it was primarily created by Jean-Marc Giacalone. I added a few bits...

My MakerBot's musical tones often set digital mood for each of my lan parties. It furiously pumps out prototypes of whatever models we throw at it between matches. Then we thought why not bring our game to life?

Nothing good ever comes from caffeine induced delusions during 4:00AM LAN parties. Well that never stopped us before. So this is the first step in creating a fully motorized robot.

I introduce to you, the Exoskeleton Crystal Harvester.

The next iteration will have drive motors and Bluetooth communication.

Helicopters are complex machines. They require high quality parts that are strong, lightweight, and accurate. Those are terms typically not associated with parts made on home 3D printers.

But could they be?

We all know home machines are getting better, but could you actually print a working helicopter on a home 3D printer? The obvious place to start is the blades. They must be thin, light, smooth, and strong. If you can't print blades, you can't make a helicopter. So can you?

Well, spoiler alert: you can. But do they actually work? Or do they fly apart when they spin up, or generate too much turbulence to actually fly?
See for yourself:
youtube.com/watch?v=qXlUSWrVzys

Printed on my Ultimaker 3D printer, using Netfabb "Ultra" (0.08mm) profile, 100% infill, 100% speed, no raft. Takes about 26 minutes per blade.

The helicopter is the "JXD 340", or sometimes the "Drift King" because unlike most cheap helis, it can fly sideways. Its a pretty awesome toy for $30, and much better than most cheap helis I have seen. Personally, I recommend it. Have a link:
amazon.com/Indoor-Infrared-Control-Helicopter-Gyroscope/dp/B004OGBNJ8/
And no thats not an affiliate link, I just think those toys are sweet.

SAFETY NOTE: I recommend PLA because it sticks well and works well with small layer heights. HOWEVER, PLA is brittle, and when these blades break, they tend to shear off and send a sharp piece flying. The pieces are light and it may not be an issue, but you have been warned. If you're about to crash, cut throttle power so the blades stop spinning and the amount of energy put into them is reduced. They've survived plenty of nicks on things, but if you crash under power they will break. Ultimately though, I am not responsible. Print at your own risk.

I made this to keep my cat occupied. I've printed about a dozen but they keep disappearing. I suspect they're under the couch.

This is just a simple design that can be used for a number of things. Most commonly the commercial equivalent of this is used to blow air or liquid over tools on CNC machines, drill presses, etc. I am thinking of using it as an articulated arm to hold camera flashes off-camera and run wires through the center. Anything is possible.

Feel free to post up modifications, as this is tweaked to the fraction of a millimeter for my specific machine to be exactly as tight as I wanted them to be.

Note: I break a few here and there when putting them together. This is to be expected, and possibly thickening up the "neck" would fix this. I print 3 x 2 using multiply so this isn't a huge deal to break one every now and then.

EDIT: I uploaded all three resolutions. The highest is what made the links in the picture, but you may have similar luck with the other two resolutions. Thanks!

Here by popular request, is the venerable Gothic Cathedral Playset as a single object. Sized suitably for printing on a Replicator build platform.

Its smaller than the original. But with that same crunchy medieval flavour. For extra fun, try printing in PLA.

I needed a stubby screwdriver for a project and I almost bought one from a hardware store...Duh! I can print one! All you need are the 1/4" hex bits which most people already have.

This is a single head taken from Rebel's Easter Island Moai Statues goo.gl/namKU found on Google's 3D Warehouse as a simple test for exporting STLs from Sketchup and processing models in Netfabb Cloud. The object has been printed on a Cupcake with Sanguinololu running Sprinter/Printrun/SFACT.

Greetings Bold Adventurers!

I know you must be pretty excited right now, but please try to contain yourselves while we get thought this final pre-flight briefing....

Your rocket is just coming out of the Replicator now. And let me be the first to say, she’s a beauty. This new model you’ll be flying has that stunning red-and-white color scheme, and a much lower risk of sudden occupant liquefaction.

We’ll be sending you on a daring voyage of exploration and discovery. You're going out into the furthest reaches of the known Thingiverse, with only your wits and those little helmets for protection. We have no idea whats out there... or if it's friendly. But here at MakerBot Space Exploration our engineers have decided its best to just say positive.

Remember, it's the dream of every spool of filament to one day be printed into an astronaut, and you are the lucky few who get to live that dream. Go forth my brave astronauts and see all there is to be seen! Discover all that can be discovered! Meet new prints and learn their ways! Yours is the greatest adventure of our time!

And be sure to take lots of pictures, you know we love a good slide show.

Created by Thingiverse user Skimbal, designer of the Turtle Shell Racers, MakerBot Botmobile and the Gothic Cathedral Playset.

The daring MakerBot Damsels are in no manner of distress -- they deftly define their own world of wondrous wizardry. Making, Creating, and Crafting, they dexterously develop designs for castles, creatures, and contraptions.

Deploying Cupcakes, Thing-O-Matics, and Replicators, dozens of Damsels distribute production precisely for punctual perfection.

Dastardly deed doers and nefarious ninja gnomes beware, the Damsels don’t take kindly to klepto capers and would-be kidnappers.

Created by Thingiverse user Skimbal, designer of the Turtle Shell Racers, MakerBot Botmobile and the Gothic Cathedral Playset.

Since I didn't happen to have any toy wheels just laying around, I designed some to be printed.

Changes from original:
-Added sweet rimzzz
-Exhaust port changed to round hole, increased size to 7mm diameter.
-Wheel mount holes changed to fit small finishing nails
-Added lip to balloon stem

Pretty simple kids toy. Attach a balloon and watch it scoot across the floor! (Sorry, some extra parts required)

This Mk7 replacement features a spring-tensioned, quick-release 623 bearing idler, and shouldn't interfere with dualstrusion. The back is also open to make it easy to clean the teeth of the drive gear.

I don't have an actual Mk7, but it seems like it will work from my test assembly with parts I had lying around, including a Mk5 gear with the wrong size hole for the stepper and 3mm filament.

Clearance on the head of the idler screw might be a problem. If so, the screw may have to be replaced with some other type of 3mm shaft. A piece of 3mm filament should work.

Not sure how to announce this other than by uploading a 'thing'. So here is one.

Enthousiastic about OpenSCAD but somewhat frustrated by the limitations of its language, I've worked on an alternative using Javascript. It's free, completely open source, still seriously under construction, based on Evan Wallace's CSG.js library and can be used from within the Chrome browser.

Launch your Chrome browser and go to: joostn.github.com/OpenJsCad/

The benefits over openSCAD are mainly in the language itself: you can use dynamic arrays for example, and solids can be stored in variables.

UPDATE: I've added a parser for local files as well. Create your own .jscad files, go to
joostn.github.com/OpenJsCad/processfile.html to parse them into an STL file.

UPDATE 2: Here's my first real thing designed with OpenJsCad:
thingiverse.com/thing:16329

Set of planetary gears and arms to hold the planet gears in place.

Based off OpenSCAD code from thing:7390 (after cutting out significant portions of it - because the original thing is much more than a toy).

The gear ratios are very interesting, and (at least at first) non-intuitive, depending on the part that is held stationary.

With a fixed Annulus or Sun, this gives 1:6.
With a fixed Planet carrier, this gives 1:5.