The Minimalistic Mk7 replacement works so nicely, I wanted to put them on my Replicator as well. It required a slight redesign in order to fit under the piece that holds the guide tubes. I use 693 bearings on this, but you should also be able to use 623 bearings like on whosawhatsis' original.

I get much better prints with these than the stock Mk8s because they grip much better on a variety of filaments due to the compliance and there is much less friction thanks to the bearing. I was using Protoparadigm's PLA and having all kinds of problems with missing filament after reversals, but not anymore. No more lost steps or stripping on the extruders, and an added bonus is you can now clean the drive gear without disassembling the unit. Also, switching colors is quicker since you can just squeeze and pull instead of going through all that unload/reload filament business.

Trimmed down the parent so that you can fit two on a Dual extruder Replicator.

It's a minor tweak of the parent, in Tinkercad at tinkercad.com/things/2lgOulFFXnr-dual-mk8-extruder-fan-duct-print-cooler.

This thing was made with Tinkercad. Edit it online tinkercad.com/things/bEitJisjGtE

This is a model of the WOPR computer from War Games. The model was manually reconstructed by watching the same 39 seconds of the film over and over again. I took a few liberties in the rebuild.

(1) The recessed hatches and/or the overall length are not quite to scale (there actually should be a group of four rivets after the pair of panels).

(2) The real movie prop has a bit of an overhang at the floor, whereas I made the sides go straight down to the floor for easier MakerBot and RepRap printing.

(3) I made no attempt to model das blinkenlights.

(4) I only reproduced the large text.

(5) There may be an Easter Egg inside the hollow base for fans of TRON.

Slightly more detail on my blog: netninja.com/2012/08/03/is-that-a-wopr-in-your-pocket/

These are designed for drandolph's "3mm hood and cover" thingiverse.com/thing:23386

I found during certain printing operations the cover would move back and forth making a flapping sound which became very annoying. So I designed the stabilizer brackets. I also found the front cover hard to remove after I put the stabilizer brackets on, so I designed lift handles which clip onto the lower alignment slot.

Both of these objects are designed with a .75mm width to space the front cover evenily and are a perfect match with the "Replicator Cover Hanger Bolt Spacers v2" thingiverse.com/thing:27223

The GoPro HD camera kits come with everything right? Hey, where's the lens cap?! A buddy of mine showed me his pathetic attempt at a lens cap using some sort of a bottle cap and rubber bands, but we as MakerBot operators don't have to settle for that...just print one!

I Designed the Recognizer in Alibre Design 3D modeling software.

A couple of people on the forum have mentioned that they've broken blades on their Replicator extruder fans. Well, that sounds like a need for a fan guard.

I can't decide which one I like better, the radial, or the honeycomb pattern; so I uploaded both. To tell the truth, I'm not exactly thrilled with either, and I'm expecting someone to come up with a snazzier pattern.

The honeycomb pattern is probably more airflow restrictive, and it might benefit from a larger honeycomb pattern.

This is a little tribute to one of the greatest shows ever aired on TV.

I didn't actually do much work on this. I found the vector silhouette here:
the-biggest-lebowski.deviantart.com/art/MST-3K-free-vector-91900530

made some adjustments and used this to pull it into OpenSCAD:
github.com/martymcguire/inkscape-openscad-poly

and from there exported the STL.

Headrest headphone brace/hook system; now my 4yr old can pickup and place back her headphones on her own even after being restrained in her car-seat.

This device hangs from the top of your iPad to increase the speaker's volume. It is not a cone shaped megaphone like its forebearers. Rather, it is just curved to bounce most of the sound to the front of the iPad. The sound volume and quality increase are noticeable.

It is a first attempt and I'm sure the Thingiverse community can make it much better.

The photo also shows the "Simple iPad Stand -3D" (thing:4020) by eagleapex in use.

Headrest headphone brace/hook system; now my 4yr old can pickup and place back her headphones on her own even after being restrained in her car-seat.

This is an exactly proportional copy of the companion cube from portal, as traced from a screenshot.

There were a few cubes already on thingiverse which I've printed out dozens of, but they all had some issues with printability or proportionality. I think I've solved all the problems with this version.

This version is flat bottomed, and has no significant overhangs over 45 degrees.

It is carefully designed in Solidworks so any changes can be quickly and easily made. I also included step files since Solidworks is pretty unfriendly to a lot of other programs.

The default size is exactly 1in^3

The Cube in the thumbnail was printed by a Fablicator.
Fablicator.com

I originally created this 3d file about 12 years ago for an old PC game project called GL_Tron. When I received my Thing-O-Matic last summer, this model kit is one of the first projects I thought about creating. After many hours modifing the original model it's finally it's done!

EDIT: I have now included individual part files per request.

mashed up the lego guy and the monolith

lego han solo encased in carbonite

This is an exactly proportional copy of the companion cube from portal, as traced from a screenshot.

There were a few cubes already on thingiverse which I've printed out dozens of, but they all had some issues with printability or proportionality. I think I've solved all the problems with this version.

This version is flat bottomed, and has no significant overhangs over 45 degrees.

It is carefully designed in Solidworks so any changes can be quickly and easily made. I also included step files since Solidworks is pretty unfriendly to a lot of other programs.

The default size is exactly 1in^3

The Cube in the thumbnail was printed by a Fablicator.
Fablicator.com