Another projection of the 4-dimensional hypercube, this one close to vertex-centered. I love the shape of its hull: almost a rhombic dodecahedron, but skewed just enough to keep the central vertices from meeting.
The more usual projection is here, other polytopes are here.
You'll receive five parts unconnected and undyed. Follow these instructions: 1. Clean the parts with cold water and soft brushing to remove support material remaining from the 3d printing. 2. Dip the parts in cold tea for a couple of hours. Holes will get more dyed because of the support material trapped in them. The slider part doesn't have marks, but with the dying will get as yellowish as the other parts. 3. Paint with black ink the marks. Let dry the ink and then remove it with a wet sheet. This way, ink only remains in the marks. In the photo the slider and some zones of the rings weren't inked so they maintained the yellow tone because tea dyes all no flat surfaces. The hour ring has marks on both sides, but only one needs to be dyed. 4. Enter the slider with a little pressure through the slit of the central (month) bar. It's only possible over June and July marks. Then move the slider to the desired month and day mark. Each mark represents two days. 5. Deform lightly the meridian ring (the bigger one) in order to insert the hour ring. Be sure that both rings have their dyed faces on the same side when in folded position. 6. Deform again the latitude ring to put the central bar in position. Check the photo for the right orientation. 7. Finally, insert the eyelet through the "jasolo fecit" part of the meridian ring and displace it to the latitude value of your location. To improve the sliding of the eyelet, you can clean the path with a stick before the insertion (again the support material).
The intrauterine device (IUD) is the world's most widely used method of reversible birth control for women. But as their production and common materials cost only a few cents, they are sold for a staggering 400$- 850$. Unreachable for many women, especially young ones.
The Bearina IUD is a political product. It demonstrates the disruptive potential of 3D printed Open Designs to give free and global access to essential products, and circumvent industries (such as the Pharma industry) that aggressively defend their intellectual property to control the price and availability of their products. As an Open Design, the Bearina IUD promotes collaborative development and free sharing of knowledge. Further developed by a networked community or in partnership with a forward looking pharma company, It is always available for experimenting with and improving, and could evolve into a functional IUD.
The Bearina, with its bear head image, is visually friendly, to appeal, so to speak, to younger women. It is a conceptual product, a design fiction, and absolutely should not be used as an IUD. Nevertheless, it is designed according to dimensions, materials and shapes commonly found in IUDs.
You are welcome to download the production file of the Bearina IUD (.stl- Creative commons nc-at-sa 3.0 lisence) from my website (www.ronen-kadushin.com). It is free and ready for 3D printing. But if you prefer, you can also download it, or even order some Bearinas from Shapeways.com. They are only 1.25€ each. In copper- containing IUDs, metal ions dissolving from the device create a spermicidal action. To do precisely that, a 1€ cent coin (copper covered steel) easily snaps in the plastic 3D printed part. An additional piece of nylon string is tied to the bottom part to complete the assembly of the Bearina IUD.
Disclaimer The Bearina is a conceptual research object, and absolutely should not be used as an IUD or for any internal use. You expressly agree to hold the designer, Ronen Kadushin, harmless for any property damage, personal injury and/or death, or any other loss or damage that may result from your use of the information or designs provided, specifically the Bearina IUD concept design. The use of Open Design designs should be based on your own due diligence and you agree that Ronen Kadushin is not liable for any success or failure of your actions you take to modify, produce, assemble or repair your products. The user further agrees that use of this design and all products or content contained herein are at your own risk and there is no warranty expressly made herein.