Thursday, Jan 26th, 2012
Free Arduino Class
Ardunino for Artists!
4 Sunday nights 7 to 9:30ish starting Jan 29th  at Arch Reactor. 2400 South Jefferson, Saint Louis, MO.
No microcontroller, programming or electronics experience needed.  If you have an Arduino (or some clone) bring it, otherwise come and learn which would be best for you.
Free, but please RSVP to .  Questions can also be sent to that address.

29th        Intro, flahing LEDS, serial communication
5th          LCDs, third patry ICs, I2c and SPI protocols
12th        Multiple Voltages, Wireless communication, Controlling AC, DC motors
19th        Free day for catchup or topic of participant's interest

Just a note for AR folks.  This time around we're going to be doing much more coding.  More writing our code rather than relying on just running examples.  Hope to see you there!



Thursday, Dec 29th, 2011

The Gateway Burners and Arch Reactor are teaming up for the second year in a row to present 'Fire and Ice'. This fundraising event will take place on January 21, 2012 at the William A. Kerr Foundation Building at 21 O’Fallon Street, Saint Louis, MO 63102. The event runs from 7:00 pm until Midnight and is for ages 21 and up. Each group will be present to host correlative activities and entertainment as well as provide information about their organizations. The event will be $10 per person. Tickets will be sold at the door.

The purpose of ‘Fire and Ice’ is to raise money for GAS (Gateway Art Support), which provides art grants and funding for the upcoming 2012 Gateway Burn, as well as funding for Arch Reactor’s upcoming projects and innovations. This unusual event is a collaboration of Burner culture and creative technical artistry that promises to be an exciting and welcome reprieve from the frigid Midwest winter. 

The Gateway Burners will sponsor a Chili Cook-off at the event, as well as host a costume contest based on the ‘Fire and Ice’ theme. Arch Reactor will host an Art/Tech auction and present demonstrations from some of their recent designs and innovations. There will also be a silent auction containing art and other submissions from community members from both organizations.  

Gateway Burners is a Saint Louis based organization that was created in 2006 to foster radical self expression through art and participation and encourage civic responsibility and sustainable community through it’s yearly events. Arch Reactor is a Saint Louis based DIY/Maker/Hackerspace created in 2009 that utilizes technology, programming and ingenuity to foster the spirit of community in the creation of their many projects and inventions. The proceeds of the ‘Fire and Ice’ event will mutually benefit and support the progress of both of these organizations.

Image graciously provided by the William A. Kerr Foundation.

Sunday, Nov 6th, 2011

Bob built this 3D printer in the space.  The plastic parts were all printed using the Makerbot.  The sections of hte video with tons of people are the regular Tuesday meetings.  


Saturday, Oct 15th, 2011

We had a great time talking and showing people around at the Garage Sale. We didn't mind the new funds pushing us a bit closer to our 501c3 fee. Hope to see some of you guys back soon.

Friday, Sep 16th, 2011

This afternoon the topic on Science Friday on NPR was "Exploring the Tech DIY of 'Hackerspaces'", featuring members of Alpha One Labs and NYC Resistor.

Some Arch Reactor members tried to call in, but I have not heard if any actually got on the air.  Listen to a recording of the show here



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Upcoming Events


  1. 3D Printer Meetup

Saturday, October 22nd

  1. BoardGame Night * ArchReactor
    • Start time: 12:00pm
    • End time: 11:30pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA
    • Come On Out and Play games With us. If you don't know games that's OK we are friendly and love to teach. If you do, bring your Favorites along and let get a Game in.

      We'll have Food there, and I'll happily take 5$ in exchange for letting you eat all day.

      We start at Noonish and Play until you Leave or after Midnight, whichever comes last. :)

    • View this event in Google Calendar

Sunday, October 23rd

  1. Hack Something!

Tuesday, October 25th

  1. Rob Presents Aquaponics

Thursday, October 27th

  1. Laser Workshop Night
    • Start time: 07:00pm
    • End time: 08:00pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA
    • Feel free to come by to learn how to use the laser cutter, talk about laser cutters, work on laser cutter projects, etc!

      Contact Person: Travis

    • View this event in Google Calendar
  2. Scott's Dry Run for Silicone Mold Casting

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Visit Us!

Come check out the space at one of our regular Tuesday meetings or Sunday hack nights, year-round. Tuesday and Sunday events are always open to the public, and generally begin around 7:30 pm.

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About Our Hackerspace

Arch Reactor was founded in 2009 by a group of friends who liked technology, programming, making, and pizza. Now St. Louis' largest hackerspace, Arch Reactor's growing membership continues to bring new skills, projects, equipment, and people to one place.

For a deeper understanding of what we're about, you should check out our explanation of hackerspaces, perhaps read about one of our members' projects, or (best of all) come meet us in person at the next open event!

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