Posted on Wednesday, Apr 17th, 2013

Science Olympian Pics

Last Weekend we held our annual science Olympiad.

Here are some of the pics from the event and a link to the Rube Goldberg Contraption we built.

Posted on Friday, Apr 12th, 2013

Science Olympiad Saturday 

Saturday April 13th, 2013

5:00PM until 9:00PMish 


Open to all ages and to the public. People are encouraged to form teams of 2 or 3 people.  Individual players will be matched up prior to the event.  We are asking for a $5 donation per team to cover supplies which will be provided.  Three events are planned:
1)  Egg Drop  -  Teams will construct apparatuses to be dropped from the top of the building and safely land on a ground target.
2  Boomilever   -  Teams will design a boomilever (google it).  Score will be a combination of weight, weight held and duration of holding the weight.
3)  Rube Goldberg machine.  Teams will construct a three phase machine with stuff off the junk bins or from within the space.  Coolest operational design wins.    The rest of the night can be spent combining all the entries into a promotional video for AR.
  This event is guaranteed to be fun, prizes are likely to be a slap on the back and status label of "Cool People of the Day".  Scoring system is still being finalized but is weighted equally over three events.  If there's a tie (which I'm hoping for) , the tie-breaker is awesome.


Posted on Tuesday, Apr 2nd, 2013

Arch Reactor Open House This Saturday

April 6th 2013


Click on the link to signup to be a presenter

Posted on Tuesday, Apr 2nd, 2013 Featured Arch Reactor!   Yeah!



Posted on Thursday, Feb 28th, 2013

Arch Reactor will be displaying our various projects including microprocessors, soldering, 3D printing, and beyond.  Come on by to say hi and get a chance to meet us.  Saturday 3/2/2013 from 2-4pm.



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Upcoming Events


  1. 3D Printer Meetup

Sunday, March 25th

  1. Pysanky Eggs
  2. Open Build Something!
    • Start time: 07:00pm
    • End time: 10:00pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA
    • Come stop by and visit! Open build night to work on projects and hang out!

    • View this event in Google Calendar

Tuesday, March 27th

  1. Pysanky Eggs
  2. Shop Training: Basic Wood Lathe

Thursday, March 29th

  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

Saturday, March 31st

  1. International Open Day
    • Start time: 10:00am
    • End time: 09:00pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA, Archreactor, Arch Reactor
    • Arch Reactor, Just like many Hackerspaces World Wide, invite you to come in and see our Space, in celebration of International Open Day.

      Come in and see who and what we are, how you can become part of the Group or just hang out and have some fun in conversation. We will be Open from 10am until at least 9pm that day.

    • View this event in Google Calendar
  2. March BoardGame Night * ArchReactor
    • Start time: 12:00pm
    • End time: 11:30pm
    • Where: 2215 Scott Ave, St. Louis, MO 63103, USA, Archreactor, Arch Reactor
    • 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

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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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