posted for Sound for Slic3r bug check with:
gist.github.com/1653024

The original model from cyclone is totally awesome, but it's only the right hand. So I mirrored the hand in Blender. Now you've got a complete set. A-okay for us lefties.

Grab the left-hand-only version if you've already printed the right hand and want a match.

They make great bookends and a great pairing with Yoda (see the pic... hiding he is.).

I've taken Renosis' awesome Gangsta chess set and put all pieces on one build plate (hexagonal packing). There are 8 pawns, 2 bishops, 2 rooks, 2 knights, and a king. I've also added in 2 queens (the second one is for when your first pawn makes it to the other side!) and 3 extra gangstas, just for, you know, more awesome.

There are two STLs... decide which you want to print:
the 1" feet file has 1" diameter feet on each piece
the 1.6" feet file is the original sized pieces and the larger ones are 1.6" diameter on their feet.

Choose the appropriate size for your chess board, or scale it as desired.

I've also included the Blender .blend file I used to make the rendering using the new Cycles rendering engine in case you would like to do your own renderings or learn more about Blender. Highly recommended.

If you're a fan of high resolution 3D printing and also Planet of the Apes (the Original), then this is the model for you. I augmented the original from Bre using the techniques I describe here:
thingiverse.com/thing:11622

If you have a double tall MakerBot Liberty model or Ultimaker+, then this thing is begging for the honor of your printbed.

our 3D printers are now such high resolution we need higher resolution 3D models so we don't see the facets when we print.

Take a Stanford Bunny. Decimate It. Subdivide It. Repeat. Repeat. Export to STL.

You should have almost all the detail but almost none of the visible 3D model facets in your print.

NOTE the before and after screenshots from Blender where you can see how the 3D model improved.

enjoy.

UPDATE 2011-09-18: I uploaded the FLATFOOT versions which should skein a bit easier. choose high res or super high res if you really want to make a big print.

Michael Curry's awesome Submarine U-Boat, recombined and resliced to be printed in two pieces. Pre-scaled for RepRap and Ultimaker.

If you have a double-height Ultimaker, grab the "GIANT" file, 510 mm tall.

enjoy.

Yes, you read that right. When you take a bucket 'o Octopi, Octopodes, and a torus... the question everyone wants to know is, Will It Blend?

Blender.org to the rescue.

This bona-fide Identified Flying Object (IFO) has a clever little octopus clutching on for dear life. He knows the fastest way over yonder is when you hurl him through the air.

Anyone that can add a good, printable scarf and aviators to the original file will get $5 from me.

UPDATED: you need to pause between reverse and forward commands. still working out why, exactly...


This is for testing rapid reversal in gcode for RepRap, MakerBot, etc. It does a find and replace of M103 and M101 lines in your gcode file.

Detailed instructions are in the top of the file.

Use it like the following:
python RAPID_REVERSALify.py FILE.gcode printRPM reversalRPM waitTime
e.g.:
python RAPID_REVERSALify.py oozebane.gcode 2.857 25 200

you will get the printout:
we will print at 2.857 RPM
we will rapid reverse at 25.0 RPM
we will wait for 200 ms during rapid reversal

and the file:
oozebane_RAPID_REVERSAL.gcode
will be created

Here is my entry to the Open Call for Open Science Equipment Contest, detailed here:
thecitizensciencequarterly.com/2010/11/25/open-call-for-open-science-equipment/

Start with the video to see what this is all about:
youtube.com/watch?v=1d4_SQBTFjg
vimeo.com/17497511

Download the .zip file to get everything, or get the individual pieces you want.

This is an open-source orbital shaker for mammalian cell and tissue culture and for bench-top science. The orbital shaker fits inside a standard 37 ºC/5% CO2 cell incubator and puts out no heat so you can load up the incubator full of these things. We have used them for 2 weeks now and the design is very simple, inexpensive, and scaleable. Our cells are growing happily in these shakers.

Orbital shakers are typically ~$1,500 and even more expensive if you need one that is designed for a cell incubator so that it will not put out any heat (incubators only have heating and not cooling functions, so if equipment puts out too much heat it will kill all the cells in the incubator).

To accomplish this goal I used an arduino microcontroller, Pololu stepper motor controller, and an inexpensive stepper motor. A DC motor could have been used but it is very difficult to control the rotational speed with high accuracy since the DC motor rotation speed varies based on load. Instead I used a $10 stepper motor and a pololu stepper motor controller at 1/16th stepping.

I used a NEMA 17 motor. Lin Engineering 4218L-01-11 works very well. It can do 75 oz-in and has lots of torque so it can be run at 1/16th stepping and at low current without generating any heat.

I used 3D printed parts I designed and printed with a MakerBot to make the off-axis motor connector and bearing plate holder.

Nuts and bolts are used to finish the design.

Stepper motors are known to put out enormous vibrations, so part of the design also required rubber tubing stand-offs which smooth out the motion of the orbital shaker and also dampen all of the motor vibration.

Coding the stepper motor rotational speed was straightforward once we calibrated the correct delay time between motor steps. We typically run the shakers at 2 Hz (2 revolutions per second) but can easily get anywhere from 0.2-5 Hz with the current setup.

Full sources are available on Thingiverse, posted today.

If you want to buy a commercially available orbital shaker you're going to spend ~$1500.00 USD.

Cost Breakdown for Open Source Orbital Shaker:
First shaker minimum requirements to get started:
ATX Power Supply $30
Arduino $30
USB plug and long cable $20
Motor $10
Bearing $1
Tubing $1
Motor controller $40
Wire $4
Nuts and Bolts $5
3D printed parts $0.50
Total: $141.50

Additional shakers, incremental requirements:
Motor $10
Bearing $1
Tubing $1
Motor controller $40
Wire $4
Nuts and Bolts $5
3D printed parts $0.50
Total Incremental cost for each additional shaker: $61.50

Currently we have 4 shakers being driven concurrently with this setup (one set of electronics).

And here (attached) is a video of them working in our incubator!

My design would benefit from winning this contest by being able to design a lasercut case for the electronics and make a kit that could be purchased directly by customers. I would make the 3D printed parts lasercut instead to make production easier.

All of these parts are sourceable from SparkFun and Ponoko. The motor controller I used is not from SparkFun but SparkFun has many that would work for this application, or they may be willing to sell the controller that I am using (from JohnYang.com). John Yang's controller is available from MakerGear.com.

This orbital shaker is likely to have numerous applications in bench-top science in addition to in vitro cell culture.

This is a derivative of Bre's Blender Monkey:
thingiverse.com/thing:895

The model is a free and open model that comes with Blender (the Blender Foundation has affectionately nicknamed the monkey Suzanne). I wanted to print it, but it could use finer detail and it also has tons of overhangs which are not good for MakerBot just yet. So I modified the design in Blender with SubSurf modifier (setting of 3 to make it much smoother), exported to stl, and then printed the model with symmetry in mind -- print exactly one half of the head, flip one of your axes to print it's mirror image, then glue or epoxy them together.

I'm working on a different extruder (for thick sticks of plastic) based on a glue gun. The hope would be to make starch plastic/glass like this:
shapeways.com/blog/archives/374-Cooking-molding-bioplastics-at-home-recipes%2C-results-tips.html

and then use the glue gun on MakerBot to do the extrusion. We are also testing other materials to extrude. Stay tuned!

This is the first version of the glue gun support. Each side takes about 3 hours to print. Screw together with M3 bolts you have leftover from your CupCake CNC. The wings fit over the z-axis bolts to mount directly in your CupCake CNC.

A way to automate glue gun extrusion is in progress and even more experimental than this glue gun holder...

Zaggo's Z-crank is great: thingiverse.com/thing:975

Zaggo's handle is a nice addition to this z-crank:
thingiverse.com/thing:1087

but i wanted something that turned super smoothly. So take the z-crank and just slap a 608 bearing on the handle. You can turn the crank completely freely without the handle slipping under your fingers.

This free model comes with MeshLab, the open-source stl viewer and editor. I cleaned it up a bunch in Blender, then exported to stl and sliced it up with SkeinFox/Skeinforge. Gcode included below (high-res for printing all the fine details -- 0.25 mm/layer).

I've included the source Blender files and also the Blender render environment I used to make the marble pic.

The original model was scanned by the ISTI-CNR and was released under the CC-SA license. More details can be found at: vcg.isti.cnr.it/downloads/3dgallery/form_laurana.htm

I always lose my forceps, wire cutters, pliers, etc. Print this out to get holders for these items to attach to your MakerBot. Get them off your work bench, then you won't lose them!

I doubled Eberhard's Dino1 left Support:
thingiverse.com/thing:1912

grabbed the .blend from here:
wiki.blender.org/index.php/Doc:Tutorials/Modelling/Two_dice

converted to .stl for printing.

Print this PiggyBank; use it to raise funds for your next MakerBot.

Source .blend file included as well for further exploration (includes non-subsurfaced and non-booleaned original mesh and each derivative step).

I haven't designed a cap that will fit the bottom hole yet because I don't have easy access to a makerbot... soon though. A cork may also work depending on the size you print out.

P.S. I loosely followed this tutorial but used Blender instead:
oktutorials.com/3d-studio-max-tutorials/modeling/smooth-piggy-bank-p1

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

This is a human brain I extracted from a public domain MRI dataset from Slicer3.4.