About a year ago, Autodesk showed off one of the most innovative filament printers in recent memory. Project Escher is your basic Cartesian filament printer, but with a twist: it has five heads. These print heads work together to build large objects very quickly.
Autodesk open sourced the design of the Escher, and now it’s made it into commercial production thanks to Titan Robotics. The Cronus, which uses the same software as Project Escher, is big! Each of these gantries is driven by closed-loop servo motors and fancy ball screws, producing a total build volume of 77″x30″x20″. This open air version is printing in PLA. If you want to use it with materials where ambient temperature is an issue there is an option for an enclosed build environment.
This printer will be available for purchase starting February but no word yet on cost. They advertise the build volume as customizable so we expect the same of the price.
Over the last year, it seems the next big thing in 3D printing is dual and multi-extrusion. This gets you multi-colored objects, but if you have the right filament, it also allows you to print objects that would otherwise be impossible to print. This week, Airwolf 3D announced their HydroFill water soluble support material. They had a few sample prints and a fish tank, and yes this stuff does dissolve in water quickly.
There were a few problems with dissolvable support material in the past. PVA is water soluble, but it doesn’t print well. HIPS can be dissolved in limonene, but the resulting goo is toxic. Airwolf’s HydroFill beats both of these filaments, and the prints compare well to what E3D showed off with their Scaffold filament recently.
Check out my video below where [Jack Licorish] goes over the characteristics of HydroFill.
Continue reading “CES2017: Dissolvable Support Material”
At CES last year, Monoprice introduced a $200 3D printer. Initial expectations of this printer were middling. My curiosity got the best of me, and last summer I picked up one of these printers for a review. The Monoprice MP Select Mini is actually phenomenal, and not just ‘phenomenal for the price’. This machine showed the world how good one of the cheapest printers can be. The future is looking awesome.
You might think Monoprice wouldn’t be able to top the success of this great little machine. You would be wrong. This week, Monoprice announced a bevy of new and upgraded printers. Some are resin. Some are huge. One will sell for $150 USD.
Continue reading “CES2017: Monoprice Unveils Expanded Line of 3D Printers”
Last year at CES, UniZ introduced the Slash, a desktop resin printer. It’s fast, it’s capable, and it’s shipping now, but there was something else in the UniZ booth that had a much bigger wow factor.
The UniZ zSLTV is a gigantic box, a little more than one meter wide, and a little less than one meter tall and deep. Open the lid, and you see a gigantic resin printer turned on its side. The idea here is to fill a gigantic tank with resin, (the build volume is 521 x 293 x 600 mm) and use it as a fairly standard UV LED / LCD resin printer. The only real difference between this machine and any other resin printer is that the part is always submerged in resin.
It’s something we’ve never seen before, and it will be available ‘soon’. The price for this huge machine is in the ballpark of $10,000.
We’ve learned a lot by watching the talks from the Hackaday Superconferences. Still, it’s a rare occurrence to learn something totally new. Microwave engineer, professor, and mad hacker [Toshiro Kodera] gave a talk on some current research that he’s doing: replacing natural magnetic gyrotropic material with engineered metamaterials in order to make two-way beam steering antennas and more.
If you already fully understood that last sentence, you may not learn as much from [Toshiro]’s talk as we did. If you’re at all interested in strange radio-frequency phenomena, neat material properties, or are just curious, don your physics wizard’s hat and watch his presentation. Just below the video, we’ll attempt to give you the Cliff’s Notes.
Continue reading “Toshiro Kodera: Electromagnetic Gyrotropes”
[Derek Schulte] designed and sells a consumer 3D printer, and that gives him a lot of insight into what makes them tick. His printer, the New Matter MOD-t, is different from the 3D printer that you’re using now in a few different ways. Most interestingly, it uses closed-loop feedback and DC motors instead of steppers, and it uses a fairly beefy 32-bit ARM processor instead of the glorified Arduino Uno that’s running many printers out there.
The first of these choices meant that [Derek] had to write his own motor control and path planning software, and the second means that he has the processing to back it up. In his talk, he goes into real detail about how they ended up with the path planning system they did, and exactly how it works. If you’ve ever thought hard about how a physical printhead, with momentum, makes the infinitely sharp corners that it’s being told to in the G-code, this talk is for you. (Spoiler: it doesn’t break the laws of physics, and navigating through the curve involves math.)
Continue reading “Derek Schulte: Path Planning for 3D Printers”
The Chaos Communication Congress (CCC) is the largest German hacker convention by a wide margin, and it’s now in its thirty-third year, hence 33C3. The Congress is a techno-utopian-anarchist-rave with a social conscience and a strong underpinning of straight-up hacking. In short, there’s something for everyone, and that’s partly because a CCC is like a hacker Rorschach test: everyone brings what they want to the CCC, figuratively and literally. Somehow the contributions of 12,000 people all hang together, more or less. The first “C” does stand for chaos, after all.
What brings these disparate types to Hamburg are the intersections in the Venn diagrams. Social activists who may actually be subject to state surveillance are just as interested in secure messaging as the paranoid security geek or the hardcore crypto nerd who’s just in it for the algorithms. Technology, and how we use it to communicate and organize society, is a pretty broad topic. Blinking lights also seem to be in the intersection. But on top of that, we are all geeks. There’s a lot of skill, smarts, and know-how here, and geeks like sharing, teaching, and showing off their crazy creations.
Continue reading “33C3: Works for Me”