A commitment to creating and knowledge sharing.
Our mission is to provide an uninhibited environment that promotes creativity and learning to any and all potential makers and hackers. We achieve this with our combination of collaborative work space, public classes, and the extensive knowledge base of our members.
The only Constant is Change
Arch Reactor is a constantly evolving organization, the tools-on-hand are ever changing and improving, driven by member initiatives.
Wood working
Power tools, hand tools, and specialty tools allow making just about anything out of wood
Metal working
Metal working capabilities expand and improve almost weekly as member make the tools they need
Textiles
From standard machines to industrial sewing that can handle denim and leather open many possibilities
3D printing
Several filament based 3D printers and resin printers are available, supporting projects up to 500mm3
Laser Engraving
With a 3ftx4ft cutting area our CO2 laser can cut and engrave large projects with ease
And more
Vinyl cutters, soldering, oscilloscopes, lapidary, and more!

Our 5000 ft2 reaction chamber contains a Shop full of equipment, a Lab to work on your projects, a Classroom to enrich your mind, and a Lounge where ideas can fuse together. Our space is a community workshop where members learn, collaborate, and bring ideas to life. Our members keep everything running, and our community is always working to improve the space.
Lab Area
The Lab area features a lot of table space for everyone to work on their projects in a low-dust environment. There are also many tools for working on electronics and other clean projects, including a soldering station, vinyl cutter, 3D printers, and an 80W laser cutter. There are shelves where members can keep a private tote, and an assortment of salvaged and donated parts available for anyone to use.
Classroom
The classroom seats over 20 students in a clean and quiet space conducive to learning. It is not completely finished, but it is functional and we have been using it to hold classes. We currently have two large flat panel displays on the walls for presentations. We expect in the future to add a large projector screen, white boards, a wireless microphone system, and a live streaming camera all available for any class.
Lounge
The lounge will be a cozy area for everyone to relax and socialize in. We currently have a fridge full of soda and a freezer with pizza, and we hope to soon have a full kitchenette. There are couches and comfy chairs, a MAME machine, and soon there will be a console gaming area as well.
Shop
Many of us urbanites don’t have garages to tinker in, which is why we have a fully featured shop in our space, including saws, vices, grinders, lathes, drill presses, planers, welders, kilns, forges and all the tools we need to create. Some tools are owned by the organization, but most are owned by our members and shared. Use of the shop is restricted to members, and you must always be trained before using a new tool.
“A co-op workshop for techies, tinkerers, and free thinkers.”
Evan S. Benn
St. Louis Post-Dispatch
-
Raspberry Pi Class
—
by
Fred taught a wonderful full class with 20+ in attendance. This was an overview class stay tuned for more focused classes coming in the near future. Fred is planning on having Raspberry Pi classes every 3 months. Raspberry Pi Class
-
New Laser!
—
by
Arch Reactor has new, larger laser! AR’s New Laser In many ways the new laser is much like the original. The materials it will cut are the same, the laser software is the same, and preparing images is the same. The main…
-
3D Printer Class
—
by
On April 24th we had a nice class on 3D Printing. The class was over the kinds of printers, how the printers work, and 3D modeling programs. We also learned about the Cura slicing program. Scott R. led the class of about 10 people. 3D Printing Class
-
Fire and Ice Success
—
by
Fire and Ice was a successful event. Thanks to all of you who helped us pull off such a great evening.
-
Super Bowl of Destruction Party Success
—
by
We had over 32 people attending in the space and out at the fire pit. Hard Drives were destroyed. Large Piles of recycleables got reduced to usable parts. Lots of Food was eaten. Lots of soda and beer was consumed. Eagles fans had a great night.
-
2018 Election Results
—
by
Please welcome the newly elected board! President Joe C.Vice President Chris W.Treasurer Nathan S.Secretary Will A.Sergeant at Arms Myles F. Public Relations Tom B.Education Fred R.Webmaster Travis M.
-
Super Bowl of Destruction
—
by
Super Bowl of Destruction Everyone is invited to come to the Arch Reactor for the Super Bowl of Destruction. We will have the football game on our big screen for everyone to watch. Not interested in football? Don’t worry, we also throw this party as something for the non-football enthusiasts. As a hackerspace, we use…
-
Chainmaile Class at AR
—
by
On Saturday January the 13th at 1pm Arch Reactor held a Chainmaile class. About 12 people were in attendance. AR brought in an outside instructor named Larry Brown from Inventor Forge. We covered the basics of making 4-on-1 chainmaille. Larry showed: How to Wrap Wire to make something that looks like a spring, cutting the…
-
Blacksmithing Class
—
by
Thank you to everyone who came out to our Blacksmithing Class last night. It was good to see so many old and new faces. Special thanks goes to Myles, our Sergeant At Arms, who volunteered to teach the class and made the forge for us to use.
Become a Member
Learn, Teach, Make