Promoting and encouraging technical, scientific and artistic skills through social collaboration, education and individual projects.


Ace Makerspace(Formerly Ace Monster Toys, “AMT”) is a 501(c)(3) non­profit member-supported organization founded in 2011. We support traditional makers and craftspeople as well as hackers both digital and material. Our community brings together people of diverse skill levels by providing resources and culture to build networks; co-work; and engage in projects that benefit individuals and the community at large. The resources we develop include spaces and a wide variety of tools and supplies to support making and learning.


Supporting our mission is met with more than just space and tools. We hold the following values as integral to our success:

We are intentionally growing a welcoming community of diverse people with an economically accessible offering. We bring together makers, craftspeople, hobbyists, entrepreneurs, programmers, creators and hackers in Oakland, CA and the greater East Bay.
The spirit of curiosity is at the heart of hacking, our culture of camaraderie makes for a welcoming place for those who are willing to try something new or ask how things work
Sharing expertise, ideas and knowledge is what makes growth possible as a community, individuals and professionals
We promote an environment of cooperation where conducting ourselves with respect for each other and the space is expressed though active transparency and communication


Board of Directors

Chris O'Sullivan
Chris O’Sullivan
Director, Chairperson of the Board

Chris joined AMT in the fall of 2014 and has contributed by teaching, participating in space builds and repairs, giving tours and much more. Chris has served on the board several times and in this latest term was elected as the Chairperson.

Chris brings 15+ years of experience working in startups, business, product dev, mentoring and advisory roles. The interplay of intention and well thought out action have inticed Chris into serving on the AMT Board. He looks forward to focusing on sustainability and outreach in his role as a director.

When not contributing to the community Chris can be found working a wide variety of woodworking, metalworking, and electrical projects. He enjoys the helpful people and good programming here at AMT. He really likes the creative process.

cela s

Cela Smith

Cela discovered Ace Monster Toy Makerspace at the May 2019 Board Match Event in San Francisco. She is excited to focus on fundraising and analytics and brings a new strategic voice to the board. She was attracted to the strong community at AMT and the resources we offer folks.

Cela bring 10+ years of professional experience including systems and process optimization and a pragmatic approach. Her experience with leading cross functional teams and non-profit finance will be true asset on the AMT board. When she is not focused on “closing” projects and initiatives that make things work better she dreams of one day opening n oatmeal restaurant/dog rescue.

Sabrina Merlo

Sabrina Merlo

Sabrina joins the AMT board with an eye to remaining engaged with the maker community and exploring her unique set of knowledge and network gained from her time at Maker Faire. She also has a great interest in organizational culture and is keen to understand more about how AMT operates.

Sabrina brings a wealth of experience celebrating maker culture with 9 years at Maker Faire and embracing the job of making more makers. She is also the founder of East Bay Mini Maker Faire where she supported AMT in bringing amazing content to the faire. Sabrina looks forward to working on CNC projects in the near future as well as enjoying the Coworking space at AMT.

When she isn’t doing something in the maker-sphere she can be found growing dahlias and harvesting them by the armload on lovely summer days

When she isn’t doing something in the maker-sphere she can be found growing dahlias and harvesting them by the armload on lovely summer days

Patrick Safinya-Davies

Most of Patrick’s projects are related to records and vinyl culture. You’ll often find him working on his latest project with the laser cutter. When he’s not working on music related projects, Patrick also enjoys a recently rediscovered love for comic books.

Many of his making skills have come from a sense of curiosity and willingness to observe the world around him. This has led him on a circuitous path along which he’s picked up a lot of knowledge. He enjoys solving problems and being a part of decision making processes, which led him to run for the board of directors. From his perspective, everyone has a voice and can help steer the organization. He loves the wealth of knowledge and skills that AMT community members have and their willingness to share with everyone. He also appreciates that AMT has such a commitment to growth and development. As a director, he wants to engage with the community, specifically folks who may like to utilize AMT’s resources but didn’t know were available.


Rachel Sadd 

Executive Director,
Monster Corps Coordinator

Rachel (aka Crafty) is an independent consultant in the greater San Francisco Bay Area. She has yet to choose one discipline and can be frequently found consulting on anything from unique wearables to front-end development to design and more. She also likes to teach whether it be 1:1 private lessons or as a volunteer with both adults and kids. During the last four years she has also amused herself sewing, herding cats and hacking culture at AMT and several other Bay Area maker/artist spaces.

Learn more about what Rachel does at AMT

Steven Sheffield

Treasurer, Director

Steven joined in September 2018 AMT specifically to help with our “financial things” and support the community. He brings professional experience working with schools from across the country. He enjoys helping non-profits worry less about the finances and more about the programming. After moving across the country three times (!) he looks forward to learning the laser and enjoying all the Bay Area has to offer.

Learn more about what Steven does at ATM here.

Matt Cridland

Vice President

Matt joined the AMT FATT project at the end of 2019 through Monster Core; bringing his professional experience of physical security software creation. After finding his feet in FATT Matt saw that there was a need for more Officers and volunteered.

When not tinkering on Software and Electronics projects Matt fills his time with guitar, board-games and an assortment of other hobbies which is growing by the minute. 

Learn more about what Matt does at ATM here.

Stewards and Team Leaders