ERRF 18: The Start of Something Great

For years, the undisputed king of desktop 3D printing conferences has been the Midwest RepRap Festival (MRRF). Hosted in the tropical paradise that is Goshen, Indiana, MRRF has been running largely unopposed for the top spot since its inception. There are other conferences focused on the industrial and professional end of the 3D printing spectrum, and of course you’d find a Prusa or two popping up at more or less any hacker con; but MRRF is focused on exploring what the individual is capable of once they can manifest physical objects from molten plastic.

But on June 23rd, 2018, MRRF finally got some proper competition. As the name might indicate, the East Coast RepRap Festival (ERRF) is an event very much inspired by its Hoosier State predecessor. Held in Bel Air, Maryland, hackers on the right side of the United States for the first time had the opportunity to attended a true 3D printing festival without having to get on a plane. Not to say it was a neighborhood block party; people from all over the country, and indeed the globe, descended on the APG Federal Credit Union Arena for the two-day celebration of everything plastic.

This inaugural ERRF was, to put it mildly, a massive success. A couple of Hackaday Field Agents were in attendance, and we definitely came away impressed with the event considering it was the first attempt. We saw evidence that the RepRap dream of printable printers is still going strong, a gaggle of new printers and products that will be prying at your wallet this year, and an American-made hotend that challenges traditional wisdom. Of course we also saw a huge number of 3D printing fanatics who were eager to show off their latest creations.

We have no doubt that ERRF will return again next year, but until then, you’ll have to settle for the following collection of selected highlights from this year’s show.

Continue reading “ERRF 18: The Start of Something Great”

Putting More Tech Into More Hands: The Robin Hoods of Hackaday Prize

Many different projects started with the same thought: “That’s really expensive… I wonder if I could build my own for less.” Success is rewarded with satisfaction on top of the money saved, but true hacker heroes share their work so that others can build their own as well. We are happy to recognize such generosity with the Hackaday Prize [Robinhood] achievement.

Achievements are a new addition to our Hackaday Prize, running in parallel with our existing judging and rewards process. Achievements are a way for us to shower recognition and fame upon creators who demonstrate what we appreciate from our community.

Fortunately there is no requirement to steal from the rich to unlock our [Robinhood] achievement, it’s enough to give away fruits of price-reduction labor. And unlocking an achievement does not affect a project’s standings in the challenges, so some of these creators will still collect coveted awards. The list of projects that have unlocked the [Robinhood] achievement will continue to grow as the Hackaday Prize progresses, check back regularly to see the latest additions!

In the meantime, let’s look at a few notable examples that have already made the list:

Continue reading “Putting More Tech Into More Hands: The Robin Hoods of Hackaday Prize”

The Tantillus, Reborn

In the beginning, around 2011 or thereabouts, there was an infinite variety of designs available for anyone to build their own 3D printer. There were Mendels, some weirdos were actually trying to build Darwins, and deltas were starting to become a thing. In the years since then, everyone just started buying cheap Prusa clones and wondering why their house burnt down.

One of the most innovative printers of this era was the Tantillus. It was a small printer, with the entire frame fitting in a 250mm square, but still able to print a 100mm cube. You could print the entire printer, and it was adorable. Face it: most of your prints aren’t bigger than 100mm unless you’re purposely printing something huge, and having a low moving mass is good.

The Tantillus has fallen by the wayside, but now it’s back. The Tantillus R — the ‘R’ means ‘reborn’ — is the latest project to take the design goals of the original Tantillus and bring it into the era of the modern RepRap ecosystem. (German, Google Translatrix, but the English translation of all the documentation is in the works),

Of note in this new design, the Tantillus R is still using shafts driven with high-test fishing line, driven by steppers and belts. The R version is getting away from the J-head, but in the interests in keeping the moving mass down, the hotend is a Merlin. This might seem an especially odd choice in the age of all-metal hotends, but again the goal is to keep moving mass down. As you would expect from a modern 3D printer, there’s support for a heated bed, you can plug a Raspberry Pi into it for Octoprint, and in true RepRap fashion, most of the parts are printable.

While the era of self-build 3D printers is probably over — you can’t compete with the cheap Chinese firestarters on price — the Tantillus R is a great project that retains the spirit of the RepRap projects while adding a few modern niceties and can still produce some impressive prints.

A High Speed, Infinite Volume 3D Printer

One of the most interesting developments in 3D printing in recent memory is the infinite build volume printer. Instead of a static bed, this type of printer uses a conveyor belt and a hotend set at an angle to produce parts that can be infinitely long in one axis, provided you have the plastic and electricity. For this year’s Hackaday Prize, [inven2main] is exploring the infinite build volume design, but putting a new spin on it. This is a printer with a conveyor belt and a SCARA arm. The goal of this project is to build a printer with a small footprint, huge build volume, no expensive rails or frames, and a low part count. It is the most capable 3D printer you can imagine using a minimal amount of parts.

Most of the documentation for this build is hanging around on the RepRap forums, but the bulk of the work is already done. The first half of this build — the SCARA arm — is well-traveled territory for the RepRap community, and where there’s some fancy math and kinematics going on, there’s nothing too far out of the ordinary. The real trick here is combining a SCARA arm with a conveyor belt to give the project an infinite build volume. The proof of concept works, using a conveyor belt manufactured out of blue painter’s tape. These conveyor belt printers are new, and the bed technology isn’t quite there, but improvements are sure to come. Improvements will also be found in putting a small crown on the rollers to keep the belt centered.

All the files for this printer are available on the Gits, and there are already a few videos of this printer working. You can check those out here.

Hackaday Links: February 18, 2018

Hacker uses pineapple on unencrypted WiFi. The results are shocking! Film at 11.

Right on, we’ve got some 3D printing cons coming up. The first is MRRF, the Midwest RepRap Festival. It’s in Goshen, Indiana, March 23-25th. It’s a hoot. Just check out all the coverage we’ve done from MRRF over the years. Go to MRRF.

We got news this was going to happen last year, and now we finally have dates and a location. The East Coast RepRap Fest is happening June 22-24th in Bel Air, Maryland. What’s the East Coast RepRap Fest? Nobody knows; this is the first time it’s happening, and it’s not being produced by SeeMeCNC, the guys behind MRRF. There’s going to be a 3D printed Pinewood Derby, though, so that’s cool.

జ్ఞ‌ా. What the hell, Apple?

Defcon’s going to China. The CFP is open, and we have dates: May 11-13th in Beijing. Among the things that may be said: “Hello Chinese customs official. What is the purpose for my visit? Why, I’m here for a hacker convention. I’m a hacker.”

Intel hit with lawsuits over security flaws. Reuters reports Intel shareholders and customers had filed 32 class action lawsuits against the company because of Spectre and Meltdown bugs. Are we surprised by this? No, but here’s what’s interesting: the patches for Spectre and Meltdown cause a noticeable and quantifiable slowdown on systems. Electricity costs money, and companies (server farms, etc) can therefore put a precise dollar amount on what the Spectre and Meltdown patches cost them. Two of the lawsuits allege Intel and its officers violated securities laws by making statements or products that were false. There’s also the issue of Intel CEO Brian Krzanich selling shares after he knew about Meltdown, but before the details were made public. Luckily for Krzanich, the rule of law does not apply to the wealthy.

What does the Apollo Guidance Computer look like? If you think it has a bunch of glowey numbers and buttons, you’re wrong; that’s the DSKY — the user I/O device. The real AGC is basically just two 19″ racks. Still, the DSKY is very cool and a while back, we posted something about a DIY DSKY. Sure, it’s just 7-segment LEDs, but whatever. Now this project is a Kickstarter campaign. Seventy bucks gives you the STLs for the 3D printed parts, BOM, and a PCB. $250 is the base for the barebones kit.

3D Print A 3D Printer Frame

It is over a decade since the RepRap project was begun, originally to deliver 3D printers that could replicate themselves, in other words ones that could print the parts required to make a new printer identical to themselves. And we’re used to seeing printers of multiple different designs still constructed to some extent on this principle.

The problem with these printers from a purist replicating perspective though is that there are always frame parts that must be made using other materials rather than through the 3D printer. Their frames have been variously threaded rod, lasercut sheet, or aluminium extrusion, leaving only the fittings to be printed. Thus [Chip Jones]’ Thingiverse post of an entirely 3D printed printer frame using a 3D printed copy of aluminium extrusion raises the interesting prospect of a printer with a much greater self-replicating capability. It uses the parts from an Anet A8 clone of a Prusa i3, upon which it will be interesting to see whether the 3D printed frame lends the required rigidity.

There is a question as to whether an inexpensive clone printer makes for the most promising collection of mechanical parts upon which to start, but we look forward to seeing this frame and its further derivatives in the wild. Meanwhile this is not the most self-replicating printer we’ve featured, that one we covered in 2015.

Thanks [MarkF] for the tip.

Hackaday Prize Entry: RepRap Helios

Did you know that most of the current advances in desktop consumer 3D printing can be traced back to a rather unknown project started in 2005? This little-known RepRap project was dedicated to building Open Source hardware that was self-replicating by design. Before the great mindless consumerization of 3D printing began, the RepRap project was the greatest hope for Open Source hardware, and a sea change in what manufacturing could be.

While the RepRap project still lives on in companies like Lulzbot, Prusa, SeeMeCNC, and others, the vast community dedicated to creating Open Hardware for desktop manufacturing has somehow morphed into YouTube channels that feature 3D printed lions, 3D printed Pokemon, and a distinct lack of 3D printed combs. Still, though, there are people out there contributing to the effort.

[Nick Seward] is famous in the world of RepRap. He designed the RepRap GUS Simpson, an experimental 3D printer that is able to print all of its components inside its own build volume. The related LISA Simpson is an elegant machine that is unlike any other delta robot we’ve seen. He’s experimented with Core XZ machines for years now — a design that is only now appearing on AliBaba from random Chinese manufacturers. In short, [Nick Seward] is one of the greats of the RepRap project.

[Nick] is designing a new kind of RepRap, and he’s entered it in the Hackaday Prize. It can print most of its own component parts, it has an enormous build volume, and it’s unlike any 3D printer you’ve seen before. It’s a SCARA — not a, ‘robotic arm’ because SCARA is an acronym for Selective Compliance Articulated Robot Arm — that puts all the motors in the non-moving portion of the base. Its design is inspired by the RepRap Morgan, a printer whose designer won $20,000 in the GADA prize for being mostly self-replicating.

Improvements over the RepRap Morgan include a huge build volume (at least three 200x200mm squares can be placed in this printer’s build volume), a relatively fast print speed, high accuracy and precision, and auto bed leveling. Despite being more capable than some RepRap printers in some areas, the RepRap Helios should wind up being cheaper than most RepRap printers. It can also print most of its component parts, bringing us ever closer to a truly self-replicating machine.

You can check out a few of the videos of this printer in action below.

Continue reading “Hackaday Prize Entry: RepRap Helios”