Sponsors

Recommended
  • 3Dconnexion SpaceNavigator SE (Standard Edition) 3D Navigation Device USB ( 3DX-700028 )
    3Dconnexion SpaceNavigator SE (Standard Edition) 3D Navigation Device USB ( 3DX-700028 )
    3D Connexion
  • The Homebrew Industrial Revolution: A Low-Overhead Manifesto
    The Homebrew Industrial Revolution: A Low-Overhead Manifesto
    by Kevin A. Carson
  • Mastering Blender
    Mastering Blender
    by Tony Mullen
  • Kindle Wireless Reading Device (6
    Kindle Wireless Reading Device (6" Display, Global Wireless, Latest Generation)
    Amazon.com
  • Blender 3D 2.49 Incredible Machines
    Blender 3D 2.49 Incredible Machines
    by Allan Brito
  • Makers
    Makers
    by Cory Doctorow
  • 3Dconnexion SpacePilot PRO - 3D motion controller - 31 button(s) - wired - USB
    3Dconnexion SpacePilot PRO - 3D motion controller - 31 button(s) - wired - USB
    3D Connexion
  • Making it Big in Software: Get the Job. Work the Org. Become Great.
    Making it Big in Software: Get the Job. Work the Org. Become Great.
    by Sam Lightstone

Entries in media (46)

Saturday
Jul032010

High Glossing Shapeways

  • Share
Another development from always-inventive Shapeways 3D print service this week: you can now print in High Gloss Glass material. 
 
The material is indeed glass, made by depositing crushed glass powder with a binding medium. The resulting (and at that moment very fragile) object is then fired in an oven to remove the binder and fuse the glass. Finally, Shapeways enamels the result to gain the glossy view. 
 
However, it's not entirely peachy: 
 
As you can clearly see in the Angel picture there is a fair amount of "definition" from the 3D printing process in the form of bumps and the like. The enamel smooths the 3D prints out considerably and these prints are closed so not porous as the Milky White Glass material is. The models are however far from completely smooth. A lot of the objects made with this process look really good and very arty. But, significant warping may occur and the overall dimensional accuracy of this process is still limited. 3D printing glass is amazing but also very new and a very experimental process. 
 
This is similar to the experience of the glass/ceramic experimenters at the University of Washington, who recently were exploring the idea of shrinkage. Nevertheless, this is another significant development from Shapeways, who continue to innovate by adding another material to their now vast selection. 
 

Follow us on Twitter - Subscribe to our Feed

Related Posts with Thumbnails
Thursday
Jul012010

Glowing Objects

  • Share
Nicholas Lewis has discovered that the Blue PLA filament build material he's been using glows when illuminated by black-light. The picture above tells the story. Imagine the build possibilities!
 
The PLA is available from UltiMachine at the link below. From the description:
 
This is Natureworks PLA4042D extruded into 3mm filament. This is a wonderful build material. It has minimal warp when cooling. The pigments used in our color PLA are all bio-friendly and designed for use with PLA.
Priced at USD$60 and the black light is Not Included!
 

Follow us on Twitter - Subscribe to our Feed

Related Posts with Thumbnails
Wednesday
May192010

Golden 3D Prints with Shapeways' Midas Touch

  • Share
Shapeways is experimenting with another print material, one you've always wanted to have: Gold!
 
They've managed to develop a process where a gold-plating step is added to normal stainless steel 3D printing. The results, as you can see in the image above, are terrific. 
 
The major concern with Gold Printing, is of course the cost. Gold is a lot more expensive than ABS plastic or even stainless steel. So how did Shapeways do? Pretty well, it seems. The gold is only a thin layer and thus not a lot of volume is used during the process. 
 
Shapeways charges USD$5 as a "start up cost", with an additional USD$10 per each cubic centimetre of material after that. This combined stainless-steel + gold material charge must assume typical ratios of gold surface to overall volume. Nevertheless, it's quite a decent price, as it allows you to produce gold jewelry without breaking the bank. The pendant pictured above is priced at only USD$14.50 each, where as rings on their samples page are approximately USD$20 and a bracelet is priced at USD$40.
 

Follow us on Twitter - Subscribe to our Feed

Related Posts with Thumbnails
Friday
Apr302010

Ice Printing

  • Share
We know it's spring and things are warming up (at least on the top side of our planet), but it's time to talk about ice. Specifically, ice printing. Along with numerous other print materials, plain water can now be added to the list. 
 
The "computer assisted ice printing" experiment was developed by professors and students at Montreal's McGill University to investigate "computer-controlled techniques for constructing objects at varying scales out of ice."
 
Their technique was to modify a standard Fab@Home Model 1 to print ice. Specifically they modded the following:
 
  • The replacement of the syringe assembly with a valve/nozzle deposition system
  • The installation of a temperature-controlled heating system for the water delivery lines and the valve/nozzle
  • Lubrication of the lead screws and some other components with PTFE grease, which is more suitable for the -20C environment of our freezer 
  • Installation of the system electronics outside the freezer to ensure more reliable operation
 
The project was evidently inspired by growing interest in outdoor ice buildings. We've all heard of the ice hotel in Scandinavia, but ice festivals around the world involve construction of not only buildings, but sculptures too. All of which is done entirely in conventional ways. But what if you could do this automatically? Somehow we like the vision of sipping our hot chocolate while observing the 3D ice printer outside busily depositing ice layers through a window. 
 
One can imagine the McGill technology being adapted for the D-Shape outdoor 3D printer; ice castles and exhibits of unimaginable intricacy would appear. Ice sculpture contests would be decided by 3D modelling skill and traditional ice sculptors wouldn't have a chance. 
 
The job at McGill was to determine if this was actually possible. Evidently it is possible, based on the photographic evidence above: ice cold beer mugs can indeed be printed. Every ice hotel will soon need one of these in their kitchen!
 
Via McGill (Hat tip to Jeffrey)
Related Posts with Thumbnails
Sunday
Apr182010

Glass Objects from Shapeways

  • Share
The big news this week was clearly Shapeways surprise announcement: they now provide glass as print material!
   
Glass printing has been the subject of much investigation and experimentation this year, and now it appears that Shapeways has made enough progress to offer commercial 3D printing using it. Even better, the glass used is recycled - and you can recycle the prints as well. 
 
The process is similar to what we've seen in prior experiments: an ultra-fine glass powder is fused with a binder layer by layer, followed by kiln-firing to melt the glass bits into a rigid state in a Venus-like +750C oven. 
 
The new material costs USD$5.99 per cc, which is mid-way between their inexpensive materials (USD$1-3 for acrylics and sandstone) and expensive (USD$10 for stainless steel). The material is apparently yet another Shapeways "experiment":
 
The material is made from recycled soda-lime glass, the fine glass powder is sintered together and then fired in a kiln. The material is porous, opaque and fragile. The material feels a bit coarse to the touch. The glass prints can be best used for objects such as centerpieces, decorative platters and other design objects for the home. 
The result is not pure transparent glass. It's sufficiently opaque that Shapeways names the material "Milky White Matte Glass", and that's precisely what it looks like. But it is glass, and that's a great step forward. We're imagining all sorts of interesting objects that are better suited for this new glass medium. 
  
It's not quite the transparent glass you might be seeking, but we think this is a very useful addition to the every-increasing list of Shapeways materials. When will we see "Clear Shiny Glass"? 
 
Via Shapeways 
Related Posts with Thumbnails
Thursday
Apr082010

Stratasys Reduces Support Material by 40%

  • Share
Stratasys, makers of the Dimension series of commercial 3D printers has announced a breakthrough in support technology. For those who don't know, support material is frequently used in 3D printing to overcome the problem of printing overhangs. If there's no support material to hold it up, the printer can't properly deposit the build material. Support material is typically printed along with the actual object, and then removed manually or chemically after printing completes. 
  
This support material is a consumable, just like the actual build material, and thus everyone has to pay for support material. A reduction in use of support material could be a "material" reduction in operating costs, too. How did Stratasys do it? According to the press release, their new "SMART Support" feature produces supports more intelligently:
 
To reduce the material used, the SMART Supports function uses a wide spacing between tool-path rasters and changes the shape of the support region. As the supports descend from the underside of the part feature to the base of the supports, the support region shrinks and transforms to a simpler shape to reduce both the material used and the build time. SMART Supports works similar to classic arch design in architecture, in which columns support layers of bricks that get progressively wider, so that the narrow columns can support a structure much wider and heavier at the top.
 
Not only does this reduce costs, but clearly there is less work for the printer to do, and Stratasys claims a 14% reduction in build time. Notice the difference in the left and right samples in the image above. Stratasys still offers several other support styles to choose from, including: basic, sparse and surround. 
 
We think this is a great development - and we wonder if similar approaches could be taken by the open source 3D printer projects? 
 
Related Posts with Thumbnails
Monday
Apr052010

Digging Through eBay for 3D

  • Share
Following up on our earlier article in which we sought out used 3D printers on eBay, we noticed that printers are not the only relevant 3D item you can find on eBay. 
  
We've located several instances of individuals selling print services via eBay, but we'd use them only if their price was less than the more well-known print services, such as Shapeways or Ponoko. 
 
Another item you can occasionally find on eBay is print media (shown above). We observed someone selling a kilo of Stratasys 3D Printer Rapid Prototyping ABS Plastic for GBP 125. (Aside: A kilo of white, hmm?) These items come and go, and if you watch for them, you might get yourself a great deal. 
 
Via eBay 
Thursday
Apr012010

Ceramic 3D Printer?

Unfold is experimenting with printing ceramics. They've acquired a RapMan 3D printer kit and "Currently we are working on a toolhead that can extrude clay." This is not something the RapMan was originally designed to do, but what are kits for if not to modify? 
 
The test vase, shown above appears impressive, but it may require some finishing: firing, to solidify the object into a true ceramic, polishing to smooth out the irregular surface and glazing in the traditional ceramic fashion. (click for larger image)
 
If this can be made to work, the possibilities of ceramic objects is pretty wide. For example, as you can see in the sample, the bowl's weight was reduced by having hollow walls with appropriate support structures. This is definitely not how ceramics have been traditionally made. Not being potters, we have no idea how you'd even attempt to do that with your hands and a potter's wheel. 
 
One of the barriers to 3D printing is often the cost of the print media. MCOR addresses this by printing with paper, but we think clay could be added as another inexpensive commonly available print material. 
 
Hopefully their experiments with clay extrusion will be made public allowing other RapMans, RepRaps and MakerBots to print ceramics, too. 
 
Via Unfold