A closer look at New Matter’s MOD-t 3d printer

So last week the SupplyFrame office Prusa i3 finally gave up the ghost — the z-axis threaded rods unwound themselves from their couplers and the whole thing fell apart. So we needed to get some better couplers as our tubing wasn’t going to cut the mustard anymore. Thankfully Pasadena is full of 3d printer people! Within a few blocks of our office we have New Matter, DeezMaker, and a soon to be announced 3d printer from ToyBuilderLabs.

The one everyone is talking about right now is New Matter who recently announced an already successful fundraising campaign for the first run of their $250 3d printer, the MOD-t. This has been making the rounds recently due to its low price and stated aim of bringing 3d printing into the home of the masses (a tale as old as time, right?). It’s a lovely goal for sure, but they will definitely have their work cut out for them, but perhaps this is the team to make it happen? We decided to head over to their lab since it’s just around the corner from our office and see if we could get them to print some new couplers and maybe take a look at their printer while we were at it, videos and pictures after the break!

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Meet Jimmy: An Open Source Biped Robot From Intel


Intel’s CEO [Brian Krzanich] stopped by the Re/Code conference to announce Jimmy, the first robot from the 21st Century Robot project. The project is the brainchild of [Brian David Johnson], Intel’s resident futurist. We love the project’s manifesto:

 Robot Is: Imagined first. Easy to build. Completely open source. Fiercely social. Intentionally iterative. Filled with humanity and dreams. Thinking for her/him/itself.

Jimmy may not be all those things yet, but he definitely is exciting. For starters, he wasn’t built in some secret lab at Intel HQ. Much of Jimmy’s construction took place at Trossen Robotics, a name well known to Hackaday. [Matt] and [Andrew] at Trossen describe all the details in their video down past the break.

This version of Jimmy is a research robot, which mean’s he’s not going to come cheap. Jimmy sports an Intel i5 NUC motherboard, 20 Dynamixel servos, a 5052 aluminum frame and a host of sensors. A  4S 14.8v 4000mAh LiPo battery will power Jimmy for 30 to 60 minutes between charges, so be sure to budget for a few spare packs. The most striking aspect of Jimmy is his 3D printed shell. The 21st Century Robot Project gave him large, friendly eyes and features, which will definitely help with the social aspect of their goals.

Jimmy is all about open source. He can run two flavors of Linux: Ubuntu 14.04 LTS or a custom version of Yocto Pokey. There is a lot to be said for running and developing on the same hardware. No specialized toolchains for cross compiling, no NFS shares to move binaries around. If you need to make a change, you can plug a monitor (or launch an VNC session) and do everything with Jimmy’s on-board computer. Jimmy’s software stack is based upon the DARwIn OP platform, and a ROS port is in the works.

We’re excited about Jimmy, but at $16,000 USD, he’s a bit outside our budget. Thankfully a smaller consumer version of Jimmy will soon be available for around 1/10th the cost.

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10,000 Hackers


Our little community might not be so very little. Today the 10,000th Hacker registered an account on Hackaday.io! You may remember that we just launched our project hosting site at The Gathering on January 21st and made it public in February. There were a few pre-Alpha testers already registered, but still, that’s 10k people in four months. Why? Because hacking is awesome and it’s made better if you show off what you do!

Of course we’re not anywhere near done yet (technically we’re still in Alpha). We want help shaping the existing features and developing new ones. Share your ideas as comments on the Feedback project; we read those.

Hackaday.io is also the gathering point for The Hackaday Prize. Give the interface a whirl, contribute to open hardware, and win a trip into space or hundreds of other prizes. What are you waiting for?

Oh, one last thing, if you’re wondering what 10,000 Hackers looks like, we have a Jolly Wrencher for every one of you after the break.

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MakerBot Files Patents, Internet Goes Crazy


In the past month, a few patent applications from MakerBot were published, and like everything tangentially related to the prodigal son of the 3D printer world, the Internet arose in a clamor that would be comparable only to news that grumpy cat has died. That’s just an analogy, by the way. Grumpy cat is fine.

The first patent, titled, Three-dimensional printer with force detection was filed on October 29th, 2013. It describes a 3D printer with a sensor coupled to the hot end able to sense a contact force between the nozzle and build plate. It’s a rather clever idea that will allow any 3D printer to perform software calibration of the build plate, ensuring everything is printed on a nice, level surface. Interestingly, [Steve Graber] posted an extremely similar design of a bed leveling probe on October 6th, 2013. In [Steve]‘s video, you can see his bed level probe doing just about everything the MakerBot patent claims, all while being uploaded to YouTube before the patent application.

When it rains it pours, and the Quick-release extruder patent application, filed on October 28, 2013, bears this out. It claims an extruder that includes, “a bistable lever including a mechanical linkage to the bearing, the bearing engaged with the drive gear when the bistable lever is in a first position and the bearing disengaged from the drive gear when the bistable lever is in a second position.” Simple enough, a lever with two positions, where one presses a bearing against a drive gear, and the other position disengages the bearing from a drive gear. Here’s something that was published on Thingiverse in 2011 that does the same thing. Hugely famous RepRap contributor [whosawhatsis] has weighed in on this as well.

It is important to note that these are patent applications. Nothing has been patented yet. The US Patent and Trademark Office does seem to have a lot of rubber stamps these days, so what is the average Internet denizen to do? Here are easy to follow, step-by-step instructions on how to notify the USPTO of prior art. Remember, just because prior art does not completely invalidate a patent application’s claims doesn’t mean you shouldn’t send it in. It is a patent examiner’s job to review the prior art.

So there you go. MakerBot applies for patents, people complain, but not to the USPTO. Highly relevant video and transcription below.

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Youthful Destruction at Maker Faire


Who didn’t get in trouble for taking things apart as a kid? The TakeItApart booth at the 2014 Maker Faire was among my favorite. It let anyone (especially the kids) grab a piece of electronics headed for recycling and crack it open just to see what is inside. The good news being that you didn’t need to be able to put it back together again since it’s just going to be ground up for its constituent materials anyway.

There’s something cathartic about watching a 7-year-old stabbing at a Walkman radio with a slotted screwdriver (those plastic cases are more robust than you might think). I asked if anyone had managed to slice open their hand back-to-the-future style in the process and thankfully the answer was no. But there was at least one instance of “free daycare” where the parents wandered off — there are plenty of distractions at MF — much to the chagrin of their progeny.

Seeing this made me think of this recent interview with [Bunnie Huang] in which he mentions taking chips out of their sockets on an Apple II when he was a kid. He would pull them and replace them backwards to see what effect it would have. Ha! If you have a similar childhood experience to share we’d love to hear about it in the comments. If you just want to see the guts of a bunch of stuff head of to TakeItApart.

A Quadcopter from Scratch


[AwesomeAwesomeness] wanted a low cost quadcopter, so he built one from scratch. Okay, not quite from scratch. [AA's] cookie mix came in the form of an Arduino Uno and some motors. He started with motors and propellers from a Hubsan X4 quadcopter. Once the power system was specified, [AA] designed a frame, arms, and motor pods in Solidworks. He printed his parts out and had a sweet quadcopter that just needed a brain.

Rather than buy a pre-made control board, [AA] started with an Arduino Uno.  An Arduino alone can’t source enough current to drive the Hubsan motors. To handle this, [AA] added a ULN2003A  Darlington transistor array. The 2003A did work, but [AA] had some glitching issues. We think FETs would do much better in this application, especially when running PWM.

On the control side of things, [AA] added an MPU-6050 Triple Axis Accelerometer and Gyro breakout from SparkFun. The 6050 has 3 gyros and 3 accelerometers in one package. Plenty for a quadcopter.

All this left was the coding. Multicopters generally use Proportional-Integral-Derivative (PID) control loops to maintain stability in the air. [AA] used the Arduino PID library for his quadcopter. He actually created two PID instances – one for pitch and one for roll.

[AA] doesn’t have any videos of his quadcopter in action yet, and we’re guessing this is due in part to weight. Lifting an Uno, a perfboard, and a frame is a tall task for those motors. Going with a one of the many tiny Arduino’s out there would help reduce weight. In addition, [AA] could use a gear system similar to what is used in the Syma X series quadcopters. Stick with it – you’re on the right track!


Hackaday Space: Pixel Art Contest

During the Final Transmission — which I’ll post about tomorrow — we decided to open up a creative area on the Minecraft server for people to build whatever they wanted as part of a Pixel Art contest. Today we announce the winners of that art challenge, and assign them their points so that we can draw the overall winner of the Final Transmission. Each winner gets additional points added to their score. These were judged by Hackaday alum [Caleb Kraft] since he hadn’t been involved in the shenanigans up to this point and was, considered unbiased, and has a well-developed set of art chops himself. So, here goes…

3rd place : Hack A Tardis

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The third place goes to the Dr Who Box by [Marcus1297], entitled ‘Hack a Tardis’. This is a great rendition of the tardis, while its only 2 dimensional it has fine detail, and the beacon beam coming out of the top is a nice finishing touch. Excellent work! [Marcus1297] gets an additional 2.5k points for his score.

2nd place : Nicola Tesla Memorial

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Second place goes to [st3al2012] for his stunning Tesla Coil which he dedicated to Nikola Tesla. This was picked because the “Art was exceptional”. There’s a lot of detail in there, not only did he build the main structure of the coil complete with the toroidal ring, but he also showed the core components. The spark gap generator, the capacitors and even the AC outlet. There’s a lot of detail and it looks stunning at night. Great job, [st3al2012] you get an extra 5k points for your scoreboard.

1st place : Portal Cube

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First place goes to [XDjackieXD] for his quite amazing Portal Cube. [Caleb] declared this the winner saying that the “Art and execution were exemplary”. We have to agree, the cube looks fantastic, but best of all he went to all of the trouble to create “Want you Gone” (the ending song from the game) using note blocks positioned inside the cube. Lovely work and he thoroughly deserves the 10k points he has received for this.

Congratulations to the winners, and thank you to everyone that contributed. The Minecraft server is still up so if you want to take a look at all the art for yourself connect to it at ‘minecraft.hackaday.com’. We have put up the world and all the plugins used to build it here. I’ll be releasing the source for the MatrixMiner plugin that I developed for the teleporter display when I get a chance to finish it.

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