This is a replacement part for the thumb roller hook that broke on one of my dial calipers. I made the part by injection molding polypropylene. I included the model files used to make the aluminum mold.

I don't know how often these things break but I couldn't find a direct replacement for mine. I did see some company selling a similar part that might have worked for ~$8. I think I bought the caliper for about $15.

Additional information about my injection molding process can be found at home.comcast.net/~sskroch/Injection_molding/injection_molding.html

MendelMax is a new RepRap 3d printer designed by Maxbots. It is a true reprap, using printed brackets, but instead of using threaded rod for the structural elements it uses inexpensive aluminum extrusions. This gives a huge increase in rigidity for a minimal extra cost (Self sourcing will cost about $50 more than a standard Prusa when purchased from the recommended suppliers). The required extrusions are available world wide from a variety of suppliers.

In addition to greatly increased rigidity, this design is faster to assemble (probably 4 hours for most users), easier to print, has a larger build volume (~215x235x190 if built at the standard dimensions), and is easier to hack on.

Update 2/7/2012: MendelMax full kits and hardware only kits are now available from Maxbots (aka Kludgineer on Thingiverse) @ store.mendelmax.com!

I saw this link a few days ago( instructables.com/id/Robotic-claw-business-card/ ) I was going to make it, but then I remembered me making a paper claw a few weeks ago, so instead of making a copy of someone else's design, I made my own! And also their design had gears, it would be hard to cut it out without a laser cutter, because I don't have one. So I used the mechanism from my claw and put it into this business card, and it works, and I suggest if you are going to make it, use a laser cutter, This was kinda hard to do and I had to use wire instead of the disks in it to move.

If anyone would like to test this to make sure that the parts work, go right ahead! I also think it could be 3d printed, if someone would like to modify it and test that out!

And ignore the pink post-it note, I had my name printed there and I dont want it to be online.

I was inspired by the texture of meteors and was playing around with pure forms, namely a cube and some spheres, and came up with these designs. More a sculptural object but interesting never the less. A challenge to print due to the circular overhangs. The first one I extracted the spheres at random and it works ok but learning from that I tried to eliminate as many as I could with the second design and it prints a little better.

the most wonderful machine in the world

Coming soon pictures, videos and more info

Video #1 youtube.com/watch?v=kGiIFeziWWg

cubevector.com

expos symbol.

This type of train coupler is widely used for passenger trains in Japan.

A more generic version of my "V393 to V303 Button Cell Adapter" thingiverse.com/thing:8410

The file is set up to create a simple crescent shaped V393 to V303 Button Cell Adapter but you can insert sizes for whatever button cells you have on hand into the user_variables section.

Please note if the smaller battery is not as tall as the larger battery this holder will not work for top & bottom type contact holders as a thin layer of plastic will be in the way!

Also... you can't use this script to adapt a large battery to fit into the space intended for a small one!

A Moineau pump is a type of positive displacement pump with steady flow (no pulsing). This type of pump is common in the food processing industry because it can efficiently pump slurries (like soup) without crushing the contents. This one pumps 32 cc/revolution (neglecting whatever leaks back through the seals) and is capable of pumping water (milk is shown for contrast).

I thought this might be useful as a paste extruder or something of that nature. It's better than a peristaltic pump because no flexible hose is needed (which tend to reduce efficiency and wear out), plus it doesn't pulse.

The hinge on my toilet seat broke, so I designed a new one. Its working great.

Probably not too exciting for the Thingiverse community, but I wanted to upload it anyway since its my first self-designed 3d print.

I am not sure what this thing is officially called, but I need a way to stop my kids from turning off my security lighting.

A concept for a 3D version of the famous Cretan Labyrinth from my friend Jeremy Shafer (http://www.jeremyevents.com/Backstage/origami/BOOK/Book_Pictures/Cretan_Labyrinth/cretan_labyrinth.html) realized and modeled by Chris K. Palmer. This version has a simple cup at the start and end. Coming soon a version with a complex trap that allows a ball to flow from one side to the other as the path is turned upside-down.

This piece is designed to have 3mm dia magnets embedded in its side. When several are printed they can be assembled into a gyroid shape.

The sample was printed in a Stratasys BST-768. I'm not really sure how this would go on a MakerBot.

We bought lots of white ABS with our shapercube.. Lots. But who wants
to print everything in white? After a while that got a
bit.. samey. So, an experiment, jam a coloured marker in the feedstock
inlet and see what happens. What happened was, coloured prints came
out. So the idea for the marker organ was born, a way to attached
several coloured markers to the feedstock, and pick which one, or
combination, is colouring the plastic.

This is the first attempt, a simple clamp over the feedstock which
holds a single marker against it.

Another mashup. If anyone has supports working well enough, I would love to see this printed.

Edit: whistle version added. Blame tbuser.

Edit: Added pics of a print WITHOUT SUPPORTS! And no cleanup. When it tried to print the bottom of the tentacles, it just kinda made a mess, but that mess built up enough to become a support structure in mid-air. This structure was initially flexible, and was dragged around by the head for a few layers, which is why the tentacles are pointy even though the bottoms were cut off by this. Even the stringing looks appropriate. I am ecstatic about how this came out.

This Thing is a mashup of:
•Octopus by MaskedRetriever - thingiverse.com/thing:5963
•The Pink Panther Woman!!!! by januario - thingiverse.com/thing:1216
•Thin Profile Whistle Blank by TeamTeamUSA - thingiverse.com/thing:5416

What happens when you fuse a 3D Brain model with Walt's head? BrainyWalt!

[Update] This thing unfortunately was one of the victims of the recent “catastrophic hardware failure” at Thingiverse.com. It used to be "thing:4811", now it's "thing:4812" :)
I'm not sure if it's possible to recover the comments on the original thing (as far as I know, the comments section is outsourced and not part of the thiniverse servers).
Also, the "Likes" are gone... Do you still like this thing?

---

Since the original frame of my Gaui 330XS Quadrocopter was damaged in a crash, I built a new frame from scratch, using printed plastic parts.
The four arms are 10x10mm wood profiles (cheap, sturdy, light weight). The motors and electronics are cannibalized from the crashed Gaui Quadrocopter. But it should be no problem to use other motors and/or electronics for this.

Cardboard surfboard core structure assembly. Cut and assemble these parts to form the shaped core structure for a 6'4" surfboard. Fiberglassing instructions on my project website will help you complete the board build.

I've been making and riding cardboard-core surfboards for about three years now. They work. Leaks are not the huge problem you would expect. And they happen to look - what's that old term the surfers used to use - awe..., awes..., awessss..., Bitchin!

These files are also a source of replacement part cut patterns, if you've ordered this board core kit from me or a cutting service. Just search through these files to find any part that's been damaged or gone missing. It shouldn't be too hard to cut one or two pieces by hand, with an x-acto knife.

This set of cut patterns is published under a Creative Commons attribution, share alike, non-commercial license. Derivatives are permitted, but discouraged, since this is not the best format for making changes. But if you do figure out some useful modification, I would be pleased to know about it, share it, and possibly integrate it into my file production pipeline.

The license is non-commercial. The primary purpose of publishing these files is to enable the lowest levels of the board-building ecosystem (where I reside) to experiment with building these boards at the lowest cost. Lots of people have local access to laser cutters, and cardboard is ubiquitous, so widely distributed low-cost production of these core kits is possible.

If you see glowing dollar signs in those translucent hexagons, you'll want to build at least one and surf it before considering whether there's any money to be made. I would be glad to discuss it with you. But I recommend you do a little "non-commercial" research first.

Bottom line: if you really want to build one of these boards, and can't get a core kit from me for whatever reason, here's a way to make your own.

If you build a board from these files, I will be thrilled to see pictures of the results. I'll feature the first response on my project web site.

[Photos on this page: 1.) Nick Yarnes with his very experimental build from one of my router-cut core kits. 2.) A Different Nick, in New South Wales, with his assembled router-cut core. 3.) Finished board by Nick in NSW 4.) A recent laser-cut version of this core.]

In the spirit of Open Source Hardware, Dremelfuge is now Open Source Hardware, according to the 0.3 standard found here: freedomdefined.org/OSHW

DremelFuge is a printable rotor for centrifuging standard microcentrifuge tubes and miniprep columns. Compared to the cost of a new centrifuge (priced by a fellow Thingiversian at $500 minimum on Froogle), a Dremelfuge is incredibly cheap. It can be used for DIYbio ( diybio.org ) or for some culinary uses. It requires industry standard 1.5ml/2ml Eppendorf/Microcentrifuge tubes.

* Used with a drill at 3000 RPM, the Dremelfuge will deliver over 400g, enough to comfortably spin down Miniprep samples (proven personally). It will likely achieve acceptable results at lower speeds, too.
* Used at 10krpm, on a Rotary tool for instance, a Dremelfuge should deliver over 4400g, more than enough to spin down bacterial cells.
* At 16krpm, Dremelfuge matches commercial centrifuges.
* On a Dremel 300, a maximum speed of 33krpm equates to a force of over 50,000 times earth's gravity, which puts it into so-called "Ultracentrifuge" territory. The latest version (as printed by Shapeways) has successfully spun tubes at this speed.

To see some picures of Dremelfuge used to spin down cells, see here:
letters.cunningprojects.com/?p=85

Quick Video Intro to Dremelfuge: youtube.com/watch?v=86WnXeTZO_Y
(Update: This video hit over 1900 views! Thanks Makezine/Bre!)

A video of me using Dremelfuge practically in a tent, to extract DNA from a banana: youtube.com/watch?v=ZnyFwupk5KA

Dremelfuge is available for sale as a high-quality, robust print on Shapeways.com in two editions, each suited for up to six samples at a time: Dremelfuge Recessed Edition, to fit the cutting-tool-holder commonly found with rotary tools (5mm diameter bore), and Dremelfuge Chuck Edition, which can be quickly adapted for use in any machine with a chuck grip. They are both available here on my Shapeways shop:
shapeways.com/shops/labsfromfabs

Dremelfuge, as with any high-speed rotary tool, may cause personal harm or damage to property or persons in case of failure, and no guarantee, warranty, promise or suggestion of safety is made or offered by me (Cathal Garvey) with regard to DremelFuge.

Dremelfuge featured on Makezine:
blog.makezine.com/archive/2009/12/laboratory_centrifuge_attachment_fo.html

Please let me know if Dremelfuge is of use to you! Please upload pictures of any printed Dremelfuges in the wild! :)

== License Stuff ==
DremelFuge makes use of the Shapes.scad script kindly released by Catarina Mota, which is released under the terms of the GNU General Public License as published by the Free Software Foundation. Many thanks to Catarina for this great workhorse script, as well as for letting me sidestep the "Inheritence Clause" of the license.

DremelFuge itself is released under an Attribution, Sharealike License. It's already available on Shapeways, and you're entitled to print it for yourself or someone else for free if you have a printer handy. As a personal favour, don't go undercutting me on Shapeways please, unless you have a significantly better version. And don't call it "Dremelfuge" if you do.

I designed this as an anniversary present for my wife. Meant to be a printable cameo (even though it's essentially flat). It is modeled after my Chihuahua Bowser.

A white cube, which only shows the logo if the RGB LED is switched on.
You can find more details about it on ifeelbeta.de

The logo is from our new reprap related shop 2printbeta.de