This part was made with Tinkercad. Edit the part online at: tinkercad.com/things/7v8clfbeznP

Zip Tie Ancher for 20mm extrusion.

Concept for a delta robot 3D printer with the following design goals:

Build volume: 8x8x16 inches or 200x200x400 mm
Footprint: 12x12 inches
Print surface: 8x8 inches heated glass which never moves
Mass of moving platform with hotend: less than 100 g
Mass of moving platform with two hotends: less than 150g
Positioning speed: 800 mm/s in all 3 directions
Positioning accuracy: 100 steps/mm in all 3 directions
Simplicity: fewer than 200 parts (not including washers, nuts and SMD-mounted electronics)
Hardware cost: less than $500 USD

I want to use the following common components:

Stepper motors: 4x NEMA 17 (plus extruder motors)
Timing belt: High-torque GT2 belt (2 mm pitch)
Pulleys: 12 groove aluminum (7.6 mm pitch diameter)
Filament drive(s): similar to Ultimaker
Ball bearings: 8x 608 (skateboard bearings)
Linear bearings: 8x LM8UU
Smooth rod: 8x 762x8 mm
Diagonal rods: hollow carbon fiber rods from kite shop
Diagonal rod ends: cheap ball joints used for model race cars
Hotend(s): MakerGear 1.75 mm
Top and bottom frame: laser-cut plywood

Inspiration: search YouTube for "flexpicker" or "adept quattro".

Closest ancestor:
heliumfrog.net63.net/deltarobot/delta.html

"Inspired by" the Hakko FA-400, this is a solder fume extractor designed to be used either horizontally for greater suction speed or verically for greater suction volume. In the .stl files attached, it is configured to use a 120mm fan and the 130mm by 130mm carbon filter that goes with the actual Hakko extractor and its various knockoffs. The filters for the Weller benchtop fume extractor should also fit. The .scad file is parametric, so changing to a different sized fan or filter should just be a matter of changing a few numbers.

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 half-size version of Stefan's double-size minifig, with added attachment posts – you may have to shave the posts to get them to fit.

I looked into getting lead shot for the weight on a mechanical clock and it turned out to be cheaper to use pennies. This should hold about 2.5 pounds ($4) of pennies with some room to add more if you need to.

Note: To stay under the 150mm height limit of the Replicator you'll have to use the shorter stl file.

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!

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.

The cartridges used in an old Dimension make great spools, except you don't see how much filament is inside.

After having put a PLA inside sign on it (http://www.thingiverse.com/derivative:21217), I thought to replace the useless chip instead :)

The text is a little too small, still readable but I'll improve it.
Otherwise, I may try to adapt or make something to just hold the spool alone (49-52mm dia. for the center).

Model of Mt. Everest generated from Shuttle Radar Topography Mission (SRTM) 90m topographic data. This fulfills a long overdue promise (see thingiverse.com/thing:8763) to publish a recipe for making your own topographic models from raw data.

According to the Chinese horoscope 2012 is the year of the Dragon.

In honor of that we have scanned a bronze Dragon statue... and thought we share it with you!

Have fun printing it!

A locker for your storage needs in outer space. 1:18 scale, designed for the Makerbot Rocket Ship Playset.

This object is designed to be one object you can print a couple times, and dial in Bridge settings, backlash, w/t, and stretch. The reason you can tune more than one parameter at once is they should be very isolated.

Bracket to mount a 2.5" Hard Drive or an SSD Hard Drive into a 3.5" hard drive bay

This is a hand grip for the Canon HV20. It is that thing that makes this camera perfect for film making using a hand camera - it is that one of the two things that is missing on this great camera.

Unfortunately for you I don't use OpenScad because I like SolidWorks... But feel free to tell me if something is missing or wrong.

youtube.com/watch?v=7MuuGTKBjqM&list=UUEQEl_OG8BzNBhR2UyOAjdw&index=1&feature=plcp

This thing is based on the Cuboro Marble track, but I didnt have one when I drew the pieces. The track is 22mm diameter and all turns are 22mm radius too.
Feel free to add new parts.

This is a 3 by 3 array of circle knots. The base unit comes from this website: cs.duke.edu/~edels/Tubes/knots/circ/index.html

This tool is useful for marking the center of a square, cylinder and rectancular objects

Impulse water turbine

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.

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...

zbrush sculpt

A self starting Vertical Axial Wind Turbine intended for domestic wind harvesting, but could be scaled to any application.

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.

Just modified the bottom gear of the screwless heart gears to fit my old kysan DC extruder motor (which turns very slowly on 5V USB XD)

youtube.com/watch?v=YefD_BvxgzY

Are you still there.

I found a portal turret model on Google sketchup warehouse:
sketchup.google.com/3dwarehouse/details?mid=79e8c33cb58058acd01371e29b8b3832&prevstart=12

I adapted it to make it printable & ship-able.

There is no way for me to contact the original author about authorization.. and the terms are seemingly ambiguous for Google Warehouse, so I'm not sure if I got the license right.

If you don't have a printer yet, or don't feel like printing it, we'll ship you one through our etsy:
etsy.com/listing/90368229/3d-printed-portal-turret

Makers out there, you're welcome to do the same!

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.

This is a teminal block that I designed more for a test than anything. Buried inside the object are five hex cavities for holding nuts (see the cut-away photo). During the print, the ToM is paused and five nuts are dropped into place. When the print continues the nuts are covered over except for the screw hole. The design places a single layer completely over the nut to assist the structure above, but it is easily punched through when the screws are installed. This produces a much stronger screw thread than tapping the plastic.
Included is the source in Alibre Design format.

Paste extruder based on the Moineau pump principle.

The pump geometry is based on thingiverse.com/thing:7958

Should work as a plug-in replacement for a hot plastic extruder in a 3D printer. However, I have NOT used this to actually print anything. I'm just publishing it in case someone else wants to try it out. (I think it's ready for printing a very small pizza without toppings, but beyond that I cannot say.)

Almost everything is parametrized and adjustable from the SCAD file. However, the resulting design should be evaluated to see if it is still sane after adjustment, since not all of the features are automatically calculated. Particularly the flange and driveshaft diameters must be adjusted by hand to match the other measurements.

See it in action: youtu.be/OHQiKuQvuEU

Note: obviously it is impossible to build an object from material that flows on it's own - the object would not hold it's shape. So in practice the material has to either be pulled into the extruder by a negative pressure (impossible with PLA printed pump parts) or pushed into the extruder by a positive pressure. In either case the motor axle has to be sealed, or it would either relieve the negative pressure or allow the material to flow up and out from the inlet block.