Category Archives: RepRap

Lots Of Links

Here are a lot of links I think are relevant to open hardware. The first is that apparently RepRap has its own magazine now!

Zero Cost Modeling of Space Frames – Julian Edgar demonstrates how to predict the failure mode of a complex frame (in this case a recumbent bicycle) without FEA software. The process involves making a scale model by soldering together copper wire then pulling on it to see where it bends or breaks. It’s a quick and easy way to see where the structure is mathematically weak.

XYZ SpaceFrame Vehicles – This is a principle for building modular bicycles and a few functional real-world examples. Here’s a pdf describing how to make one of the bicycles.

Open Source Government & Engaged Citizens: The Death Star Inspiration – Matt Micene writes, “Innovation doesn’t always result in direct business value, but can improve business in general. Innovating in the open means you can garner additional expertise you need to transform a marginal value into a direct value.”

A Guide For 3D Printing With a RepRap – ArvidJense has put together an infographic to help makers build things, specifically musical instruments, but the ideas can be applied to anything.

Someone Needs To Buy Makerbot Already – Steve Symington is talking about financial investment stuffs, but the interesting thing is that Makerbot only seems to have attracted serious financial interest after (or based on the promise of) abandoning open source principles.

Party Robotics – They are a startup focused on making open source drink mixing machines.

Using OpenSCAD for 2D Machining – Matthew Venn gives a brief overview of his process for modeling a multi-piece part in OpenSCAD and then using the projection() function to export DXFs for CNC milling.

Designing For Laser Cutting In OpenSCAD – This is a similar (but more extensive) set of instructions from a Dutch FabLab.

Make Your Own Arduino – streetjerk shows you how to put together a thru-hole Arduino from raw materials. This is particularly useful if, like streetjerk, you want to incorporate additional components (like a motor driver) into the board itself rather than use I/O ports.

Prepper Movement Embracing 3D Printing – PosserteusMaximus has compiled a list of links on how the preppers/survivalist community is becoming aware of, using and contributing to open hardware and 3D printing.

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Ford Officially Backing Open Source 3D Printers

In a press release Ford Motor Company bragged about using 3D printing in general, and the open source Makerbot Thing-O-Matic in particular, to develop some of the smaller plastic parts for its vehicles. Zack Nelson, the engineer in the video, lists the easy availability of design files and community support as benefits to using the open source machine.

The full text of the press release is after the jump.

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RepRap Generation 7 Electronics

This design is by Markus (Traumflug) Hitter and should be of particular interest to the RepRap side of 3D printing. RepRap stands for Replicating Rapid Prototyper because Dr. Adrian Bowyer’s project was focused on creating a machine that could more-or-less reproduce itself. We have the RepRap project to thank for the recent explosion in amateur interest in 3D printing and it was the RepRap’s self-reproducing feature that made the explosion possible. The more parts the machine can make, or process, on its own the easier it will reproduce. Traumflug’s Gen 7 electronics are simple and single-sided, so the board can be milled on a suitably equipped RepRap.

You can buy the electronics from Traumflug or find the files at github

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The Prusa i3 Is A RepRap That You Can Flat Pack

You may or may not already know who Josef Prusa is. If you’re reading this…odds are you know.

He’s taking his “3rd Iteration” (i3) RepRap to the Open Hardware Summit, and the coolest thing is that it breaks down into two flat sections!

Finally it’s easy to travel with a 3D printer. Don’t print on your desktop, print WORLDWIDE! [from Josef Prusa’s twitter]

For those who are interested in the ever increasing diversity of the RepRap family tree, the i3 seems to be based mostly on the design of Nop Head’s Mendel90.

There isn’t much information available at the moment, but it looks like Prusa has created some special components, particularly in the extruder. Here are some notes, and the github. And here it is printing a giant vase…

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Makerbot’s Lawyer Explains Thingiverse Terms Of Use

Apparently Makerbot’s in-house lawyer has more important things to do than explain legal jargon to the public.

In a concise and coherent post, Rich McCarthy explains how Makerbot has structured their legal relationship with Thingiverse contributors. The short of it is that they are using roughly the same terms as sites like Youtube.com, they make no claim of ownership on anything uploaded to Thingiverse, and whatever license you attach to your work (like Creative Commons) they respect.

Well…that’s it. I don’t like doing tiny posts, so here is Josef Prusa explaining how to use the “new” Makerware program with old “unsupported” Makerbot printers.

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The Definitive Makerbot Open vs Closed Source Discussion

I did my best to document all the different points of view that are relevant to the open source hardware world but are spread all over the interwebs.

The original Makerbot founders.

This post got big, fast. Really big. After the jump you can find key quotes from Bre Pettis, Zachary Smith (Hoeken), Adrian Bowyer, Josef Prusa, etc.

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An Ex-Founder Of Makerbot On Open Vs Closed

Zachary Smith (aka Hoeken) was on of the three original founders of Makerbot. He’s posted a response to the recent scuffle over the release of the Replicator 2, Josef Prusa’s public questioning of its open source credentials, and Bre Pettis’ “load of corporate double-speak bullshit” response to the community.

Check it out…it’s a little depressing (and not just because of the sad kitten).

 In 2009, I invited my friends Adam Mayer and Bre Pettis to go into business with me building 3D printers. Thus, MakerBot Industries was born. Fast forward to April, 2012 when I was forced out of the very same company.

MakerBot was built on a foundation of open hardware projects such as RepRap and Arduino, as well as using many open software projects for development of our own software. I remain a staunch supporter of the open source movement, and I believe the ideals and goals of OSHW remain true.

I’m trying to contact people to find out what the real scoop is but so far nobody is talking, and my ex-partners are not returning phone calls or emails. It certainly doesn’t look good.  The best information I have found is a load of corporate double-speak bullshit that has come to characterize my interactions with MakerBot in recent memory.

For me, personally, I look at a move to closed source as the ultimate betrayal…I had assumed that Bre would continue to follow the principles that we founded the company on, and the same principles that played a major part in the success of our company. Moving from an open model to a closed model is contrary to everything that I stand for, and as a co-founder of MakerBot Industries, it makes me ashamed to have my name associated with it.

 

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Science Enabled By Open Source Hardware

Science is a good match for the open source philosophy.

Because…

  • it tries to do things for little-to-no money
  • it doesn’t care if equipment is pretty
  • it is only focused on results
  • it needs things that are very specific that no one else in the world needs
  • it is often motivated by something other than profit

Joshua Pearce of Michigan Tech’s Open Sustainability Technology Lab is an example of where the rubber meets the road. He has nearly two dozen Thingiverse things, and most of them are awesome tools for scientists. His work has been profiled in Mighigan Tech News and Popular Mechanics. You can also read the transcript of an interview with Science Magazine Podcast here (pdf). Pearce has a paper called Building Research Equipment with Free, Open-Source Hardware in Science Magazine, but it’s behind a paywall. The summary is here.

More after the jump.

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Make Magazine Is Planning The “Ultimate 3D Printer Shootout” Issue

If any single publication can claim to represent the maker movement, I suppose Make Magazine is it.

John Abella says they are working on a massive guide to 15 hobby-level 3D printers, to be released in November. It looks like some of the designs they’ll be comparing are the Printrbot, 3D Touch, SeeMeCNC, Felix, Lulzbot, Up!, Solidoodle, Makerbot Replicator and Ultimaker.

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WikiWeapons – To Print A Gun Or Not

3D printing, when it works, is a remarkably easy way to turn a very complicated design file into a physical object.

Open source, when it works, is a great way to innovate on and distribute an idea quickly.

What if that idea was a design for a gun?

The Defense Distributed project seems to be coming to open source 3D printing from a philosophical perspective. They assert that designing a 3D printable personal defensive weapon system is a challenge to numerous entities that they either disagree with or believe don’t go far enough in their beliefs.

More after the jump.

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