We found 78 products by Bathsheba
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Bathsheba
Half a sculpture. The two parts are connected by ten 3/16" spheres which you'll need to source. Ball bearings will work fine; I'd recommend gluing them to just one half so you can see the design both together, and with its interesting cross-section exposed.
If you'd like to see this in metal, I'd recommend here.
Here's a button to get both halves:
+ 
Lastly, here's the unsplit version.
If you'd like to see this in metal, I'd recommend here.
Here's a button to get both halves:
+ Lastly, here's the unsplit version.
by
Bathsheba
The other half of a sculpture. The two parts are connected by ten 3/16" spheres which you'll need to source. Ball bearings will work fine; I'd recommend gluing them to just one half so you can see the design both together, and with its interesting cross-section exposed.
If you'd like to see this in metal, I'd recommend here.
Here's a button to get both halves:
+
Lastly, here's the unsplit version.
If you'd like to see this in metal, I'd recommend here.
Here's a button to get both halves:
+ Lastly, here's the unsplit version.
by
Bathsheba
A theorem walks into a bar...
The Klein Bottle is a mathematical joke: a surface with only one side. This one feels just right in your hand and opens bottles with ease and style. Built to last in steel, it's the perfect touch for any math fan's kitchen.
The Klein Bottle is a mathematical joke: a surface with only one side. This one feels just right in your hand and opens bottles with ease and style. Built to last in steel, it's the perfect touch for any math fan's kitchen.
Yes, it really works!
Klein not-a-bottle-opener is here.
by
Bathsheba
A symmetrical object. There's a smaller one here.
Smaller model, 5cm This model, 9cm
This wasn't a simple rescale; I rebuilt the entire object to fit the tolerances of metal printing at the smaller size.
Smaller model, 5cm This model, 9cm
by
Bathsheba
This was one of my first designs, from before I went to art school.
It's good to see it online.
It's good to see it online.
by
Bathsheba
A pendant for metal printing. I have trouble believing that these are photos and not renders...something about this object feels very unlikely.
by
Bathsheba
A pendant for metal printing. I think this may be the most adorable thing ever.
by
Bathsheba
Seen enough balancing birds? It's time for a little SQUID PRO QUO.
If you print the Balancing Squid in steel, it becomes the Balancing Squid Bottle Opener. This item balances. It opens beers. And it is a squid.
Is there more to life?!
A stand for it is here.
by
Bathsheba
The design I'm trying to make is exactly twice as complex as this one. This stage of it seemed like a good place to pause for a breather.
by
Bathsheba
A Klein bottle.
Warning: this Klein bottle does not open beers, it just looks cute.
The Klein Bottle Opener is here on Shapeways or here on Bathsheba.com.
A bigger bottle is here.
Warning: this Klein bottle does not open beers, it just looks cute.
The Klein Bottle Opener is here on Shapeways or here on Bathsheba.com.
A bigger bottle is here.
by
Bathsheba
To use this oil lamp, you'll need:
A wick - I used cotton string about 1/8" thick.
A wick holder - I used a 6-32 stainless T-nut that I got at an Ace Hardware for $.74. Anything will work that is clean metal, about 1/8" diameter inside and 3/16" diameter outside, with a flange.
Fuel - I used olive oil, any vegetable oil will do.
I made an Instructable with more details.
A wick - I used cotton string about 1/8" thick.
A wick holder - I used a 6-32 stainless T-nut that I got at an Ace Hardware for $.74. Anything will work that is clean metal, about 1/8" diameter inside and 3/16" diameter outside, with a flange.
Fuel - I used olive oil, any vegetable oil will do.
I made an Instructable with more details.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to
the five Platonic solids in 3D. This is the fifth, the
hyperdodecahedron, a remarkably beautiful object brought to my
attention by George Hart.
Here it's shown in a Schlegel diagram so you can see all 120 dodecahedral cells, though most are transformed by perspective: in this projection, the only regular dodecahedra are the biggest one on the outside and the tiniest one at the center.
A smaller model is here.
Here it's shown in a Schlegel diagram so you can see all 120 dodecahedral cells, though most are transformed by perspective: in this projection, the only regular dodecahedra are the biggest one on the outside and the tiniest one at the center.
A smaller model is here.
by
Bathsheba
I've seen enough to know where this is going...oh, just kidding. It's a rhombic dodecahedron. With an exotic symmetry group. That's all. Really.
by
Bathsheba
I designed this with the plan of placing a 3/8" ball bearing in its center. This should be easy in a flexible material; it wasn't so easy in steel. But now that I see it, I'm not sure the center isn't better left open...your call to make.
by
Bathsheba
An alternative seashell.A larger version is here: http://www.shapeways.com/model/85313/whelk.html?gid=ug4660
by
Bathsheba
An alternative seashell.I'm very fond of my own instance of this design, and that doesn't happen often.A smaller version is here: http://www.shapeways.com/model/215947/whelk__10_5_cm_.html
by
Bathsheba
Another biomorphic sculpture.
This is about 10cm, or 3 3/4", end to end. There's also a larger version.
by
Bathsheba
Two letters fused into a 3D block. What an eyecatching way to showcase two initials! Yours will be ¾-1" (2-2.5cm) tall depending on the letters. Choose from Comic, Typewriter, Block or Script font, shown in the picture above.
A larger size is here.
Do you need a hanging loop? If neither letter has a closed loop (like O, P, B etc.) and you want to use this as a pendant, you will need that. Let me know in the instructions box please? Thanks....
Do three letters work? Sometimes, find out more here.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to the
five Platonic solids in 3D. This is the sixth, the hypericosahedron, with 600 tetrahedral cells.
This was the hardest of this group to make a printable model of. For a Schlegel diagram one would need quite a large size to allow the amount of interior complexity required, and it gets difficult to build as well as expensive, so I used this face-first projection suggested by Henry Cohn. Some of the tetrahedral are collapsed and become planar, but on the plus side the complexity is on the outside where you can see it!
This was the hardest of this group to make a printable model of. For a Schlegel diagram one would need quite a large size to allow the amount of interior complexity required, and it gets difficult to build as well as expensive, so I used this face-first projection suggested by Henry Cohn. Some of the tetrahedral are collapsed and become planar, but on the plus side the complexity is on the outside where you can see it!
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to the
five Platonic solids in 3D. This is the fifth, the hyperdodecahedron, a remarkably beautiful object brought to my attention
by George Hart.
Here it's shown in a Schlegel diagram so you can see all 120 dodecahedral cells, though most are transformed by perspective: in this projection, the only regular dodecahedra are the biggest one on the outside and the tiniest one at the center.
A bigger model is here.
Here it's shown in a Schlegel diagram so you can see all 120 dodecahedral cells, though most are transformed by perspective: in this projection, the only regular dodecahedra are the biggest one on the outside and the tiniest one at the center.
A bigger model is here.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to
the five Platonic solids in 3D. This one is the odd polytope out, the one without a 3D counterpart.
It has 24 octahedral cells, all shown in this Schlegel diagram. Like the pentachoron it's self-dual -- the only self-dual solid in any dimension > 2 that is not a simplex. And if that wasn't enough, it's also the only regular convex polytope in any dimension > 2 that tiles its space and is not a hypercube.
It has 24 octahedral cells, all shown in this Schlegel diagram. Like the pentachoron it's self-dual -- the only self-dual solid in any dimension > 2 that is not a simplex. And if that wasn't enough, it's also the only regular convex polytope in any dimension > 2 that tiles its space and is not a hypercube.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to
the five Platonic solids in 3D. This is the second, analogous to the octahedron, called the cross polytope.
This is close to a vertex-first projection, but rotated a little so the central vertices don't quite overlap and you can see all 16 tetrahedral cells. The cross polytope is dual to the hypercube, so its 16 cells correspond to the 4-cube's 16 corners.
A different projection is here.
This is close to a vertex-first projection, but rotated a little so the central vertices don't quite overlap and you can see all 16 tetrahedral cells. The cross polytope is dual to the hypercube, so its 16 cells correspond to the 4-cube's 16 corners.
A different projection is here.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to
the five Platonic solids in 3D. This is the second, analogous to the
octahedron, called the cross polytope.
The cross polytope is dual to the hypercube, so its 16 cells correspond to the 4-cube's 16 corners. This projection is a straightforward Schlegel diagram. A different projection is here.
The cross polytope is dual to the hypercube, so its 16 cells correspond to the 4-cube's 16 corners. This projection is a straightforward Schlegel diagram. A different projection is here.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to the
five Platonic solids in 3D. This is the third, the hypercube or tesseract, in the classic projection into 3-space, showing its 8 cubic faces in a nice straightforward visualization.
A different projection is here.
A different projection is here.
by
Bathsheba
There are six regular convex polytopes in 4D, which are analogous to the
five Platonic solids in 3D. This is the first, the pentachoron
or hyperpyramid, in a vertex-first projection. It has 5 tetrahedral
cells, and like the tetrahedron is its own dual.
In every dimension there's one polytope like this: all triangles, self-dual, analogous to the tetrahedron. As a group they're called simplexes, so this is the 4-simplex.
In every dimension there's one polytope like this: all triangles, self-dual, analogous to the tetrahedron. As a group they're called simplexes, so this is the 4-simplex.
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