Rotating Skull Gear
Description
If you can't yet print, or don't want to for some reason, we'd be happy to print & ship it to you through our etsy! etsy.com/listing/104700095/skull-gift-3d-printed-rotating-skull
Instructions
This was printed on my Up!, I haven't tried it yet on the Replicator. I printed using support, because of an overhang on the eye socket.
**EDIT 8/2/12** So I accidentally had uploaded an earlier version of the skull. It should still have come together, but would look a little different from the picture. I have now uploaded the newer version.
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Printed at 50% reduced size. See photo attached. Pins tend to be a little loose, but still in all, it worked. Pretty cool - thanks!!!
So, I'm curious, what was your process/workflow for generating this. i.e., details beyond you mashed up the heart gear and the skull. Any details would be appreciated.
Hello, I'm sorry I missed this! I used the Emmett's openscad code for the screwless heart gear (this thing's derivative). When you load the code into openscad, there are lots of the useful functions which perform this "mashing up". Effectively, you are intersecting this "rotating gear" mechanism with another shape. Try it first with a sphere or cube, and see how the rendering changes as you rotate and move the sphere or cube about (you can do this in another program; I used blender to export the STLs to be loaded into openscad).
Though it does not work with all shapes.. I've been trying to make a 'brain gear' for a while, but all the brains I find have too many holes and cavities.
I've printed out three of these, white/bone, black, and yellow. It's a perfect design for Halloween. Assembly was easy but took a little readjusting of position to get the fit just right, i.e., a "smooth" skull.
I think I will try to scale them and see how a larger and much smaller version work.
So the pins might need to be a little bigger for a multi-material print. But I like how it turned out! Thanks for creating it, and I uploaded a picture with the parts and pieces so you could see it.
Any assembly instructions? I printed the gears on a ZCorp 650, and the pins on a 3D Systems Projet 3000. The first pin file was corrupt, so I had to reload it. After I CA the gears I'm looking to snap it together with the Projet printed pins. Just wondering about how to snap it all together? Orientation on the center would be helpful!
Hey! Oh interesting, I wonder how it looks on the ZCorp compared to the commodity machines. Assembly is similar to the heart gear from which this was derived.
Start by inserting the pins to the center. The large pins are paired with the large faces, and small with small. It is easiest I have found to start with the forehead. It is the largest of the small gears, and you can see the brow ridge. Insert it into one of the small faces. Next insert the two l
arge gears with the cheekbones and eye sockets, so that the eye sockets line up with the brow ridge of the forehead piece. Next insert the spine piece, another small gear which will line up with the sides of the face.
From here, insert the back of the skull, which is a large gear piece with a smal
l point on one side; this point should face towards the bottom spine piece. Next, insert the top of the skull, the last large piece, such that the longer side is towards the from of the skull.
The last two small gear pieces look similar, but one is slightly longer. The longer one left hand side of
the skull, from the perspective of the skull; and the shorter in the right.
Let me know if this helps!
I love this thing! I'm having difficulty putting the three small gears in the proper orientation. When I look at the picture you have, the front small gear piece (with the nasal bone) is different than what prints out on the skull 1357 file. When I print out that file, none of the pieces has the distinctive nasal bone.
Hey -- thanks for the heads up! You are right, I had accidentally uploaded an early version with the skull at a different orientation, so the pieces look slightly different from the picture. Your print should still come together as it is, but a little different from the picture.
Sorry about that!
License
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is it possible to mod this code so it would be a tardis i tried but completely failed.