Category Archives: Manufacturing

3D Printed Guns Not Protected Sez Court

The Amazon product this Free-day isn’t free as in beer, but frees you to put your phone in the one place in your dwelling that gets a good cell signal and lets you talk anywhere on the device acting as a portable speakerphone. Also, listen to music.

Our smallest portable speaker with a convenient silicon handle for hanging
Connects to any Bluetooth-enabled device from up to 30 feet (10 meters) away
Works with Bluetooth-enabled devices including Android and iPhone, iPad, tablets, smartphones, iPods, and MP3/MP4 players
Up to 6 hours of playback on a single charge; full charge takes 2 hours; Splash-resistant design
Built-in mic for making phone calls; power and volume-control buttons; USB charging cable included

AmazonBasics Nano Bluetooth Speaker – Blue. Or spend more money on a cell signal booster.

The speaker also comes in black or yellow optional colors, but since it’s bluetooth, here it’s blue.

Come and Take It by Cody Wilson
Come and Take It: The Gun Printer’s Guide to Thinking Free

Ars Technica reported that a U.S. court ruled that Defense Distributed’s 3D printed gun designs were not protected by the first amendment, Court: With 3D printer gun files, national security interest trumps free speech.

Other people are testing 3D printed pistols, including for example, “Guy in a garage”, Songbird 3D Printed Pistol – .357 Magnum REPAIRED!, also embedded below.

Trolls & Tribulations for Missouri Wind & Solar

There seems to be a lower price on the Thames & Kosmos Wind Power 2.0 Amazon product this Winds-day. From the description:

“Gift-wrap available.”
“Electricity generating turbines”
“Build wind powered generators to energize your electric vehicles and charge your rechargeable batteries (permakent: in theory)”
“Kit includes two styles of wind turbine blades and a gearbox with three different gear ratios for experimenting.”
“Explore this amazing free source of renewable energy”
“Kit comes with everything you need”

I bet Jeff Harmon at Missouri Wind and Solar, who has a popular YouTube channel for the topic, wishes it had a troll repeller. Some folks had been tormenting him on the Internet, perhaps because of foreign trade issues? See Jeff talk about it last December,

Click for related page at Atari Mania

Also see Jeff visit one of his suppliers, Missouri Wind and Solar visits Helios America Solar Panel Factory, a manufacturer in the United States.

For home windpower newbies, Jeff explains the basics, Wind turbines for the beginner How to part one by Missouri Wind and Solar (also embedded below):

3D Printing Glass From Sand in Morocco

The Fry-day Amazon product is a low cost 3D printer that uses plant based bioplastic filament, PLA, to build objects by adding layers on top of layers.

The user interface to do this is simpler these days. It got a good review at Hackaday, Review: Monoprice MP Select Mini 3D Printer. The author was impressed that such a low priced 3D printer can use standard G-code and doesn’t require special filament.

It supports ABS and other materials as well.

From the description, “Ready to Print: Unlike most other low-cost 3D printers, this printer ships fully assembled and has already been calibrated at the factory. We even include sample PLA filament and a MicroSD card with preinstalled models, so you can start printing right out of the box!”

Back in 2011, a “Solar Sinter” was shown making 3D printed glass objects directly from sand in Egypt using a solar powered computer to focus sunlight as the process.

Here’s our blog post about it from that time,

An updated version of the Solar Sinter uses finer sand in Morocco and a new computer design to produce objects with more definition.

See the latest video, Solar Sinter – Image Studios, also embedded below.

“Making A Hackerspace” OC KHCTF Mon. April 30

J. Kent HastingsKarl Hess
Technology Forum

On a Fifth Monday in a Month

April 30, 2012

Pre-meeting: 6:00 p.m.
Dinner 7:00 p.m.
Announcements: 7:45 p.m. Howard Hinman,
Master of Ceremonies

Presentation: 8:00 p.m.
J. Kent Hastings:
“Making A Hackerspace”

Questions: 8:45 p.m. Q&A via written cards for at least the first round of questions.
Close by 9:30 p.m.

Location: Asian Buffet (Oriental buffet)
23552 El Toro Rd., Lake Forest, CA 92630
At Raymond, behind a bank, near the public (gov’t) library branch.

View Larger Map
Tel: (949) 206-9988 – Fax: (949) 206-9098

Howard Hinman of Orange County, will serve as the Master of Ceremonies for the event and will offer a Toast to the evening’s festivities.

J. Kent Hastings is a writer, video editor, audio and film producer, computer programmer, agorist and ham radio hobbyist.

Hastings wrote about privacy and security in his “Techtics” column for SEK3’s Tactics of the Movement of the Libertarian Left during the 1980s. Kent also wrote an article about these subjects for the first issue of Agorist Quarterly, published in 1995, titled “The Information Underground Railroad.” He also co-authored, with best-selling writer Brad Linaweaver, an alternate history novel published in 2004 titled Anarquia, which features some interesting technology in its version of the Spanish Civil War.

Kent has returned to an early interest in tinkering with homebrew electronic gear, partly because he finds it fun, and also thanks to a number of emergency scenarios discussed at prior meetings here.

Kent is an active member of a Los Angeles based hackerspace called CRASH Space. Hackerspaces have workshops with tools such as 3D printers, laser cutters, milling machines and in this case, electronics gear like oscilloscopes, signal generators, and spectrum analyzers. Many members are already proficient using CAD software to design 3D printed physical objects or create custom printed circuit boards for their microcontroller (usually Arduino) projects.

CRASH Space has a full complement of electronics, mechanical, and microcontroller makers as well as a few licensed ham radio operators. There are professionals working at space companies, instructors in university tech departments, and entrepreneurs building prototypes. Members have competed in the Discovery Science Channel’s Unchained Reaction show. The season finale will include “Team Fail, Fail, Fail, Win.”

This hackerspace has operated for a couple of years and seen growth in the number of members, which is fueling further growth. At the latest member’s meeting we discussed the upcoming 501c3 non-profit status and looked at preliminary growth projections in the number of members and the amount of revenue.

As government budgets reach the breaking point, universities turn down student applications for lack of funding, and internships at companies during this employment slump aren’t picking up the slack, the only alternative for those wanting upgraded skills is to hang around friendly, enthusiastic competent makers who can teach things and maybe learn something in return.

Some timeless wisdom from a 2008 presentation by HacDC’s Nick Farr:

For the first round of questions, audience members are asked to submit their questions in writing to the Master of Ceremonies, so that they may be presented to the speaker most effectively.

Cost is dinner (approximately 15.00 FRNS) plus a 5.00 room charge per attendee. (Cash only for the room charge please.) MasterCard and Visa accepted by the restaurant. Beer and wine available at an additional charge.

Good food. Some vegetarian dishes available.

For this meeting, leave a reservation message with the subject “OC KHCTF” on the web at or email:

If you have additional questions contact Kent Hastings toll free at 1.877.867-8209 or leave a voice mail message.

The next fifth Monday in a month is July 30, 2012. Howard Hinman will give a talk then, titled “Housing in a Time of No Money:Government Restrictions and the Oppression of the Homeless and the Environment.”

Resilient Community Foundation is a nonprofit organization. Its mission is to support a resilient community, including respect for personal rights and responsibilities.

For information about this event (other than reservations) and/or future events, please contact Howard Hinman, Director of Communications, Chief Financial Officer and Senior Legal Researcher, at (714) 244-2291. His email is:

Solar Sinter Makes Glass Items From Sand

A Slashdot post, “A Solar-Powered 3D Printer Prints Glass From Sand,” links to the web page about the Solar Sinter by the inventor, Markus Kayser. Excerpt:

“In a world increasingly concerned with questions of energy production and raw material shortages, this project explores the potential of desert manufacturing, where energy and material occur in abundance.”

Kayser tests his invention in the Sahara Desert at Siwa, Egypt, but I wonder if it will work with the soil here in the Nevada desert.

Markus Kayser – Solar Sinter Project from Markus Kayser on Vimeo.