Although you can make an arm of any length to mount to a motor shaft using these two things:
thingiverse.com/thing:6452
thingiverse.com/thing:6354

and some suitable rod/tube stock, sometimes I just want a quick and easy arm of a given length that is totally printable.

This thing is kind of a mash up of the other two things. On the one end, you can mount it to your 5mm motor shaft (the shoulder). On the other, it has a ball bearing to form a 1DOF joint (the elbow). Between the two is a printed cylinder that forms the 'bone' of the arm.

You can see in the picture how to use the thing, or at least one usage of it.

Of course it's all parameterized, so you can create whatever size you like, limited by the capabilities of your printer. The default size has a distance of 100mm on centers, fits a motor shaft of 5mm, and accomodates a 608 bearing.

Some other turret models have been posted and people have been asking for the model for this one on the flickr set ( flickr.com/photos/7820200@N05/sets/72157626476156514/with/5614051491/ ), so I thought I'd post my progress. There's a lot left to be done, but the white shell parts are pretty much finalized. It's a complex model, and rendering will take a while, this is normal. You can change the $fn variable at the beginning to make smoother curves with smaller facets, but the larger the variable, the longer it will take to render. I've been working on other projects, but if/when I finish this, I'll update this space.

This model is based on careful measurement of images from screenshots from Portal, Portal 2, and Portal 2 promotional materials. It is actual size, as measured by taking screenshots in which Chell can be seen standing next to the turret, and assuming her to be average height for an adult female. This resulted in an estimate that the standing turret is 1.5m tall including the antenna, and the spheroid portion is 1m tall when folded.

Update: thanks to eric1000 for the pics of a 1/10 scale shapeways print!

Update 2: The design now has parameters for size (height of the complete spheroid, "full size" is 1000mm) and thickness of the shell in mm. This should make it easier to produce printable STL files. Also, the different parts are now modules that can be easily disabled at the beginning of the file.

Update 3: I've successfully printed all of the shell parts on my Makerbot with supports at 1/5 scale. Pictures have been added, and I've posted the STLs I used.

Update 4: I've added the black feet and updated the legs with small recesses to insert them into. The scad file is also updated, and includes the code for generating the printable plates.

With Makerfaire coming up I was thinking about how I will be able to recognize other 3D printer operators. Since we all don't usually go by our usernames I thought about how we could use our machines to recognize each other. So I created this nifty little 3D printer operator badge. So print one out and wear it to Makerfaire to show your pride for 3D printing. This is also a great conversation starter! Plus it is in the Makerfaire colors!! Wear one to Makerfaire if you 3D print!!!

I made this so I could mount it to the grill of my truck. It's 100x100mm and 10mm tall. I've included the Sketch Up! file for you to edit as you like.

What's cooler than transformers? A Cupcake CNC transformer with a Bre head? This is a fully articulated assembly that transforms from a Cupcake CNC to a Bre-bot.
I started with a snap-together design (see the attached concept sketches) but migrated to a bolt-together kit for various reasons. The final design allows for fine adjustment of the joint tension so the transformer can stand in any position but still be movable, positionable, transformable!

See the animated transformation here: jmillerid.com/wordpress/2010/05/cupcake-cnc-transformer/

Modeled in NX6, rendered and animated in Modo, .stl files cleaned up in Blender, exploded view created with Rhino and Illustrator, sketches with Sharpie.

Design was inspired by "The Glif" tripod and stand.

A new design has been uploaded as of 10-07-10.
Also as second design has been uploaded to fit with the Griffin Reveal Etch Graphite case. It should also work with other cases 1/2 inch in thickness.

Some dimensions have changed and the overall design has been modified.

The original file has been removed and the photos delete because they did not link directly back to where they should have...

My family has a tradition of making people work for cash or gift cards if they do not give a suitable suggestion for their birthday. So this year I decided to take advantage of my 3D printer to fully encapsulate some cash for one of my cousins who is wanting to purchase an Apple iPod Touch. This "trap" does exactly that, it fully encapsulates either cash or a gift card so your recipient has to work at cutting or smashing out the gift.

In order to make a wooden iPhone case, I printed a plastic form to bend the wood around. See images of the finished case and the full build documentation here: cre.ations.net/creation/wooden-iphone-4-case

The form is slightly larger than a real iPhone 4 both because of shrinkage during the print process and wanting to make the case still slightly larger than an iPhone 4.

I saw this design: arkwhat.com/17-arkcanary-ii and decided to make my own. The holder.stl fits an iPhone 4 ass, but the parts are separate if you would like to make one to fit your phone's ass.
Video if it in action: youtube.com/watch?v=apK3GMyn45w
Designed and printed at hive76.org/

For those of you still using first Gen I-Phones Enjoy! I have abused and dropped my phone with this tough ABS shell numerous times and have had no problems. The chunky hexagons on the back make for grear gripping.

in fact a derivate of thingiverse.com/thing:5065

I added the FreeCAD file if you like to change something...

This is still a bit of a work in progress but I think it's mostly workable now.

Warning! There be overhangs here!

I have yet to see what sort of torque this can handle but it seems like it will handle quite a bit. I'm able to stop it if I grab two of the screws sticking out of the planet carrier. Hopefully I'll measure the torque soon.

This is intended to be used with another bearing somewhere on the output shaft. I can't imagine that it would handle any load with only one bearing on there. A different cover could easily be made with a spot for another bearing.


The current design adds 38.5mm in length to your stepper, it could be less but the makerbot supplied stepper that I have has long shaft so I had to make it longer to stop it from interfering with the bolt for the output.
It could probably be 5mm or so shorter pretty easily with a shorter stepper shaft.

Change Log

5/11/2011 Initial Upload
5/12/2011 Switched to 2x 683ZZ bearings for planets, shortened planets a bit, increased backlash and clearance, added list of some possible ratios
5/13/2011 Added addendum/dedendum adjustment to gear library for internal gear.
Removed most of the constants at the top and switched to arguments with defaults
Added multi-stage capability, now you can stack multiple stages in one case
5/20/2011 Added a way to get a screw in to bolt to the stepper and nuts in so that you can bolt it to something (I didn't think it would be too easy to find screws to go through the whole thing into the stepper)
Added a relief on the underside of the cover to clear the screws in the carrier.
5/25/2011 Uploaded separate STLs and modified involute_gears library

Nope, not Dash Rendar, Ponda Baba, or even the young Lando Calrissian. It's your favorite smuggler Han Solo lovingly packed in carbonite for convenient shipping and storage. Enjoy Han Solo by yourself or with friends. Han makes a lovely conversation piece and will be certain to make you the center of every party.

I owe a special thank you to Sci-Fi 3d { scifi3d.com } and the awesome free STL editing package Netfabb { netfabb.com }

This is a very quick and VERY dirty model of Darth from the shoulders up. It's probably way too over designed and as such must have hundreds of unused vertices but i'm lazy and probably won't ever try and fix any. Hence it's up here as it is now. My Thing-O-Matic isn't properly calibrated and is using some old ABS stock I had lying around so the prints look average. I'm totally keen to get this printed again once i'm through with my upgrades and can get her all sorted out and on the straight and narrow again.

It was an attempt to try and get a Darth Vader bust similar to the beethoven one but ended up being more of an experiment on how I could print the model with little to no support structure. I tried to print him without separating the helmet and had limited success (see the totally red Darth images). The helmet bottom rim didn't print nicely for a bunch of layers so makes it a bit wobbly looking.

No matter what I do I can't get my ToM to print any support structure so my fabrications always look a little worse for wear on overhangs in images...

The VaderBody.stl really needs some support under the chin, but is otherwise easy to deal with.

VaderHelmet has some in-built support in the design so that you can print it without needing to use other support and hack it out of the inner helmet.

I like to cut away the chin of the VaderBody.stl, after printing with no support as it's a little cthulu-like, and use a lighter about an inch from the model to re-set the ABS and get rid of the white from my trimmings. Again It's not perfect but it works.

So yeah, i've already said it, but it isn't perfect and I welcome others to alter and fix things if they feel the need/desire. Perhaps Darth might be lucky enough to get some more accessories in time too...

In the tradition of barrel of monkey's these guys are meant to link together en masse. They can form chains or even checkered sheets by connecting on all four corners.

This thing was originally conceived and designed by MakerBot's own Matthew Griffin (http://thingiverse.com/mifga). Enjoy and please send comments, we're still working on it!

Check out v16 for our latest and greatest version! the sc55 version is the version that they are printing at MakerBot lately....

Having sat on an Ukulele, I decided the best way to avoid pesky repairwork would be to hang the instruments up where I can't crush them. This does the job.

I've included two versions of the object as STL. One has a thicker base in case your ukulele head ends up needing to go through a wall if you try to mount it on the thinner one. The thin version looks better, and for my instruments at least, I think would work even if I had mounted them on a wall instead of the top of a shelf as I did.

Included is also the Blender file for these, which should be better suited for editing than the STLs.

Teennntacllles... coming out of the waaaaallll.

amyhurst was asking for a key hook by our front door and decided upon a tentacled theme.

guru's awesome volumetric tentacle seemed like a great choice, so I pulled it into OpenSCAD and made space for a 1" roofing nail to slide-and-lock into the back of the tentacle.

(thanks to cibomahto for the tagline up top).

My first attempt at making an open source tire lever! Super handy for changing popped tubes on a bicycle! Print two, then use the first to pry off the tire, then clip it to the spoke, then use the other to remove the rest of the tire.

I have no bot - can somebody try printing this and seeing if it works? This is my first Thing and I'd appreciate any feedback - just trying to get more involved with the Thing community.

Trying to clone: bloombikeshop.com/productreviews/pedros-tire-levers.php

This part was made with Tinkercad. Edit the part online at: tinkercad.com/p/acc012b37bbeeec0

I made this specifically because my brother wanted something that wasn't easily molded with an injection molding machine. The undercuts on the bollards and the jack port should make it impossible, if not unrealistically expensive to make that way.

The picture is pretty self explanatory. Put earbuds in, wind and then push the jack end into the hole provided.



EDIT: This only seems to work with the new iPod / iphone earbuds with the volume control buttons on the cord. Thanks to all those who tried with other earbuds.

Have you ever wished you could be in two places at once?

Is the thought of getting up for that early morning TV Interview really cramping your nightlife?

Never Fear! The Talking head is Here!

Just pipe an audio signal through and watch as the Talking Head comes to life and lip sinks your prerecorded interview.

Guaranteed to be totally effective on TV audiences everywhere.

Here are some video's of it in action
youtu.be/8QQwjhJsz18
youtu.be/U_PERylb8xM

A Collaboration between Michael Curry and Jestin Stoffel of the Cowtown Computer Congress

The Glasses are a scaled down version of thingiverse.com/thing:5544

(This thing got featured in the thingiverse blog: blog.thingiverse.com/2011/05/30/this/ )

When my daughter saw this thing ( thingiverse.com/thing:8859 ) she wanted to take the pieces off to have the "X" and "O" to play with for Tic-Tac-Toe. Since I had been messing with a case ( thingiverse.com/thing:8860 ), I decided to try to mash them together into a little travel Tic-Tac-Toe game.

There is a little video of it building here:
youtube.com/watch?v=nRKHwylv1Ms

This is an original work, but is similar to:
thingiverse.com/thing:7614
thingiverse.com/thing:8881
thingiverse.com/thing:8364

Here's a more polished, production-ready update to the domekit 3d-printable geodesic connector system. We refactored the central hub to feature a rounded edge and use less material. The strutcaps are shorter while being more durable, and include an integrated thumbscrew (with captive nut) that locks the strut to the node. This makes the structure easier to assemble, because you're not trying to snap the balls into the sockets — just slide the strut into the shaft and turn the screw.

+ + +

please visit domekit.cc for more details