All About Circuits is a comprehensive electronics industry website, featuring a free six-volume online textbook about electronic circuits. Volume Six is devoted to projects and experiments, tied closely to the material in the preceding volumes. HacDC members have begun a joint seminar project to work through these projects in HacDC’s workspace, one by one, in the order they appear in the textbook. Anyone interested in participating in these learn-by-doing exercises is welcome to join in.

The first “All About Circuits” seminar was held on February 10, where we completed the “Voltmeter Usage” and “Ohmmeter Usage” experiments in the book. On Monday, February 17, we will move on to “A Very Simple Circuit,” “How to Use an Ammeter to Measure Current,” and (time permitting) “Ohm’s Law” and “Nonlinear Resistance.”

The session will run from 7:00-8:30pm. If we don’t finish the experiments mentioned here, we will pick up where we left off the following week.

Parts and equipment to complete at least one copy of each experiment will be provided at the space. If you would like to bring your own multimeter or other equipment you are welcome to do so.

May 16th, HacDC will be taking over DuPont underground! Join us for demonstrations of DIY technology including 3D printing and VR, and meet hackers and makers from around the DC area.

When: Thursday, May 16
Where: Dupont Underground
19 Dupont Circle NW (entrance near Starbucks)
Washington DC 20023

Send an email to email hidden; JavaScript is required if you would like to participate..

The following was posted by Julia to our Blabber email list.

It was arkansas. FreeGeek Arkansas. It started with a board, structured similar to HacDC’s, out of the president’s garage. It had a different guiding principal, as the goal was to educate the public, provide machinery to the public(reuse), and recycle whatever the public would drag in. We ran a “build three, take one home” program, providing all of the education and training to build the machines. To grow, our president found us a nice space (4000 square feet, on the town square!), but became overwhelmed by the organization growing. He, and many of the board members started getting hired away, and having to leave because of the recession. I was left, as treasurer, with a mostly idle board. We became tiny, organizationally, and unlike myself, almost no-one could use a soldering iron. Seeing the need for skills training, i set up my first classes, to train our board and volunteers in how to repair PCs. I set up a motherboard reworking station, and proceeded to replace the capacitors on thousands of boards, creating more machines for the public. I even got good at reflowing RAM sticks, and built a few generations of 3D printers there. The place did not run on a membership model, instead making money from donations, given to us by the public for fixing their gear. I paid the rent myself for many years, until finally getting the place to break even, and even get a $25K grant, shortly before I left.

I miss many of the people there. My mother, and my father both started volunteering there, which personally is the only time me and my father bonded over anything. He served by helping me teach others to build machines, and providing access control to the high value equipment that would frequently ‘walk off’. My mother ran a small thrift store in the front of the facility with any of the excess machines we built. Nonprofits were allowed to basically roam and pillage anything they needed, that we did not have an organizational need to have.

We had our share of heroes, villans, and misguided individuals. It was one of the most rewarding experiences of my life.
Volunteer at your local hackerspace, folks.

Julia Longtin

Free Geek Arkansas today can be found here:
https://www.freegeekarkansas.org

The Hackers On Planet Earth 2018 conference (HOPE) hosted a panel discussion on the history of the maker movement. It’s worth listening to and seeing what common origins and challenges hackerspaces throughout the US share even today. Around 25:50 you’ll hear Mitch Altman talk about the original three US hackerspaces started in 2007-2008, Noisebridge in San Francisco, NYC Resistor in New York, and HacDC. Hat-tip to Alberto for the link.