Openbuilds
OpenBuilds designs and sells modular V-Slot and C-Beam aluminum extrusion systems, CNC machines, motion controllers, and supporting CAM/control software to the global maker community through its open-source hardware platform and Part Store.
- Company typePrivate
- Founded2012
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2C
- OfferingHardware or Manufacturing
What Openbuilds does
OpenBuilds is a privately held US LLC operating an open-source hardware ecosystem for the global maker community. The company designs, brands, and sells modular aluminum extrusion systems—principally the V-Slot and C-Beam product lines—together with compatible motion control electronics, linear actuators, stepper motors, and software tools that enable users to assemble CNC routers, 3D printers, laser cutters, plasma tables, and other digital fabrication equipment. Its product portfolio spans complete machines (LEAD CNC, C-Beam Machine, ACRO System, MiniMill), control electronics (BlackBox X32, Interface CNC Touch Control System), and open-source software (OpenBuilds CAM G-code generator and OpenBuilds CONTROL machine driver), all distributed primarily through the OpenBuilds Part Store e-commerce platform and supported by a community forum and build showcase at builds.openbuilds.com.
The business model is anchored in hardware parts sales via direct-to-consumer e-commerce, supplemented by software products and a freemium community platform. Go-to-market is community-led: an active forum, build showcase, and the FairShare program supporting schools, developers, and open-source projects drive organic demand. The primary customer segment is individual makers and hobbyists, with secondary exposure to education and training, small workshops, and artists/designers. The company was founded in 2012 and is co-owned by Mark Carew, Trish Carew, and Vincent Krouwels. The community forum currently displays a notice indicating that OpenBuilds is winding down operations, a material signal for any investor or acquirer assessing the business.
The desktop CNC market context provides some perspective on the addressable opportunity: the global desktop CNC milling machines market is projected to grow from USD 1,292.3 million in 2025 to USD 1,894.6 million by 2035 at a 3.9% CAGR, with 3-axis configurations holding 39.5% market share and education representing 70% of application demand. OpenBuilds' positioning targets precisely these segments, though the company's small employee base (11-50), single funding round of $89,003 in 2012, and current shutdown trajectory suggest it has captured only a niche share of this expanding market.
Openbuilds firmographics
Firmographics- Name
- Openbuilds
- Legal name
- OpenBuilds LLC
- Website
- https://openbuilds.com
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- OpenBuilds designs and sells modular V-Slot and C-Beam aluminum extrusion systems, CNC machines, motion controllers, and supporting CAM/control software to the global maker community through its open-source hardware platform and Part Store.
- Ownership category
- akta.pro rank
Openbuilds industry classification
Industry- Product category
- CNC Machine Components and Digital Fabrication Hardware
- NAICS
- Other Electronic Component Manufacturing (334419), Electrical Equipment, Appliance, and Component Manufacturing (335)
- SIC
- Electronic Components & Accessories (3670), Misc Industrial & Commercial Machinery & Equipment (3590)
- akta.pro primary industry
- Embedded, Maker Platforms & Development Kits Retail (CRACAKAI)
- akta.pro secondary industries
- Maker / DIY Electronics & Physical Computing Platforms (EDAFANAC), Makerspaces & Fab Labs (Open Build Studios) (EDAMADAC)
Keywords
Where Openbuilds is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Markets served
Openbuilds business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Hardware Parts Sales: Sale of proprietary and third-party compatible parts through the OpenBuilds Part Store including V-Slot profiles, C-Beam components, linear actuators, stepper motors, controllers, electronics, and accessories
- Software Products: OpenBuilds CAM (G-code generator) and OpenBuilds CONTROL (machine driver) software products for CNC machine operation
- Community Platform: The builds.openbuilds.com community platform hosts user-generated builds and projects, driving demand for parts and software
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Parts catalog with varying price points based on component type and complexity |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
Openbuilds product offering
Product offeringCore offering
OpenBuilds designs and sells modular, open-source hardware building systems (V-Slot and C-Beam aluminum extrusions, linear actuators, motion control electronics) used by makers to build CNC machines, 3D printers, laser cutters, and other automated equipment. It also offers companion software (OpenBuilds CAM GCODE generator and OpenBuilds CONTROL machine driver), complete machine kits (LEAD CNC, C-Beam Machine, ACRO System, MiniMill), and operates a community forum and Part Store for sourcing components.
Product overview
OpenBuilds is a modular open-source building system for CNC machines, 3D printers, laser cutters, and other digital fabrication equipment. The product portfolio centers on mechanical building systems (LEAD CNC, C-Beam Machine, ACRO System, MiniMill) combined with motion control electronics (BlackBox X32, Interface CNC Touch Control System) and supporting software (OpenBuilds CAM GCODE Generator, OpenBuilds CONTROL Machine Driver). The ecosystem is designed for the maker community to Dream it - Build it - Share it, with thousands of community project variations built using genuine OpenBuilds parts, supported by a Part Store for component sourcing.
Differentiator
Problem solved
Functional benefit
Brands
- V-Slot: A modular aluminum extrusion system featuring a v-shaped groove profile used in various machine builds
- C-Beam
- LEAD CNC Machine
- ACRO System
- BlackBox
- OpenBuilds CAM
- OpenBuilds CONTROL
- Interface CNC Touch Control System
- FairShare Program
Products and services
- LEAD CNC Machine
Companies that use Openbuilds
Customer profileSegments4 records
Ideal customer profiles4 records
Openbuilds technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Openbuilds partnerships and signals
Strategic signalScale indicators6 records
Recent moves6 records
Expansion highlights4 records
Openbuilds competitors and assessment
Company assessmentDirect peers
- SainSmart: SainSmart sells affordable CNC router kits, 3D printers, and laser engravers aimed at hobbyists and small workshops. It is a direct competitor in entry-level, modular CNC hardware with a similar global e-commerce distribution model.
- RatRig: RatRig designs V-Slot-compatible CNC and 3D printer frames and sells kits and parts through an active community. Its product philosophy — modular aluminum extrusion, open-source designs, community-driven — closely mirrors OpenBuilds'.
- Bantam Tools: Bantam Tools (formerly Other Machine Co.) builds desktop CNC milling machines like the Bantam Tools Desktop CNC and NextDraw, serving professional and educational makers — a nearly identical target buyer to OpenBuilds.
- Carbide 3D: Carbide 3D makes the Shapeoko line of desktop CNC machines and bundles them with its Easel CAD/CAM software. It is the closest direct competitor to OpenBuilds in the affordable desktop CNC segment, targeting the same hobbyist, educator, and small-workshop customers.
- Snapmaker: Snapmaker produces 3-in-1 (and now 4-in-1) modular machines combining 3D printing, CNC carving, laser engraving, and cutting in a single enclosed platform. It competes for the same maker and education budgets as OpenBuilds' modular CNC systems.
Others
- Misumi: Misumi is a large industrial components supplier of aluminum extrusions, linear guides, and motion components that compete with V-Slot and C-Beam parts at the bill-of-materials level for many OpenBuilds customers.
Broad incumbents
- Prusa Research: Prusa is a leading desktop 3D printer manufacturer with strong education and community engagement. While focused on FFF printing, it competes for the same maker/education share of wallet and serves overlapping customers.
- McMaster-Carr: McMaster-Carr is a broad industrial hardware distributor selling aluminum extrusions, linear motion components, and mechanical parts that OpenBuilds customers frequently cross-shop for compatible components.
Emerging players
- Inventables (Easel): Inventables created the Easel browser-based CAD/CAM software ecosystem for desktop CNC users and now operates more as a software/platform layer serving the same maker community that OpenBuilds targets.
- WhamBam CNC: WhamBam CNC offers modular CNC router kits and accessories aimed at the small-shop and hobbyist market, with comparable V-slot-style mechanical designs that directly overlap with OpenBuilds' LEAD/C-Beam machines.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
Openbuilds social profiles
Digital presenceOpenbuilds financial estimates
Financial estimateRevenue estimate
Valuation estimate
Openbuilds leadership team
Management profileNumber of profiles
Profiles3 records
Openbuilds funding detail
Funding detailFunding overview
Funding rounds1 record
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Openbuilds M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Openbuilds
What does Openbuilds do?
OpenBuilds designs and sells modular, open-source hardware building systems (V-Slot and C-Beam aluminum extrusions, linear actuators, motion control electronics) used by makers to build CNC machines, 3D printers, laser cutters, and other automated equipment. It also offers companion software (OpenBuilds CAM GCODE generator and OpenBuilds CONTROL machine driver), complete machine kits (LEAD CNC, C-Beam Machine, ACRO System, MiniMill), and operates a community forum and Part Store for sourcing components.
Is Openbuilds a public or private company?
Openbuilds is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Openbuilds founded?
Openbuilds was founded in 2012. It employs 11 to 50 people.
Where is Openbuilds based?
Openbuilds is headquartered in New York, United States, in the North America region.
How does Openbuilds make money?
Three revenue lines are on record. Hardware Parts Sales are the primary driver. The others are software Products and community Platform.
Who are Openbuilds's main competitors?
Direct peers on record are SainSmart, RatRig, Bantam Tools, Carbide 3D and Snapmaker. Misumi is listed as an others. Broad incumbents are Prusa Research and McMaster-Carr. Emerging players are Inventables (Easel) and WhamBam CNC.
Does Openbuilds have an API?
No public API is recorded for Openbuilds.
What industry is Openbuilds in?
Openbuilds's product category is CNC Machine Components and Digital Fabrication Hardware. Its primary akta.pro industry code is CRACAKAI, Embedded, Maker Platforms & Development Kits Retail, with a secondary code of EDAFANAC, Maker / DIY Electronics & Physical Computing Platforms. Its NAICS code is 334419 and its SIC code is 3670.