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Posted on Friday, Oct 13th, 2023

Its that time of year that we celebrate our birthday. We'll provide the Cake // Ice Cream // Fire Pit // and Good Conversation. Come out and Hang out with us on Sunday Oct 22nd from 7pm to 10 pm. Check out the space, Ask Questions and enjoy a great Fall night with us as we celebrate 14 years of Making
2023 AR Fall open house

Posted on Tuesday, Oct 3rd, 2023

The Street Department has been working in front of Arch Reactor and they are currently, as of Tuesday, October 3, digging up the street in front of our driveway access. You WILL have driveway access for the October 4 monthly meeting (after 4pm-ish). You MAY have access to the driveway on Wednesday, but once they pour the concrete it will take Three Days to Cure. We were advised that we Cannot drive across the new concrete on Wednesday, Thursday, Friday, or Saturday. We are told that if they hold the schedule, after noon on Sunday we are allowed to shift the barriers and drive across the new concrete into the parking lot.

For vehicles capable of "jumping the curb" and driving across relatively flat grass it will be possible to bypass the new concrete. Please be Careful! For anyone on a motorcycle, bicycle, or on foot, you should have easy access around the new concrete by either going across the grass or past AR and up the sidewalk.

We will be attending First Friday at the Science Center. For anyone interested in the 2600 Meeting, it may move to online-only because of this access issue.

Please watch Discord and/or This Space for more updates!

Posted on Thursday, Jul 20th, 2023

As the STL's First HackerSpace / MakerSpace, We want to invite our neighbors, area businesses, community memebers, and their family's to come visit our space and see what's possible.

Running from 4p to 9p on Saturday the 19th .We'll have Some Music, great conversation. Hotdogs to Roast and tea to Drink, Yard Games to Play, Tours of our space, pouring of Liquid Aliumium and of course Liquid Nitrogen Ice Cream.

Posted on Saturday, Apr 15th, 2023

Open house May 9th 6p-9p

To celebrate the forthcoming summer we are hosting a BBQ.  Come on out
and hangout with the members.  We will grill burgers and hot dogs until we
run out.  Soda, water, plates and plasticware will be provided.

Bring yourself, a chair to sit on, maybe a side dish or more meat to put on
the grill, and have some  fun hanging out outside.  Kids welcome!!

Additional Activities
Some Members wil Bring and show off Projects 


Posted on Friday, Mar 31st, 2023

Thank you to everyone who came out to create Pysanky at AR this year!

Please watch the 2024 (Probably March) calendar for your next opportunity.

Images of the 2023 AR Pysanky





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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.

Space Status

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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!