Machinist Forums & Communities

Over 2 million posts covering CNC machining, manual machining, shop management, and every major machine brand (Haas, Mazak, Okuma, DMG Mori). The Shop Management and Owner Issues subforum alone has 179,000+ posts. Best for professional machinists, CNC operators, and shop owners. Features a Manufacturing Resource directory, career listings, and tooling classifieds. No-nonsense, highly technical, expert-level answers.

Covers CNC machining, routing, plasma/laser cutting, CAD/CAM software, and more. Includes RFQ boards where shops post and find work, job listings, and classified ads. Machine-brand and software-specific subforums make it easy to find help for your exact setup. Best for CNC operators across all disciplines, from metal to wood to plasma. Technically diverse and beginner-friendly in most sections.

A smaller but intensely professional community focused on production CNC machining. Discussions cover Swiss machining, EDM, gear making, fixture design, and specific brands like Haas and Mazak. The Shop Owners and Management Discussions subforum is where real business conversations happen. Best for production shop operators, CNC programmers, and shop owners. Professional shop floor talk, experience-oriented.

A well-established skilled trades forum with nearly 800,000 posts. While welding and fabrication are the most active sections, the machining subforum has 62,100+ posts and the business discussions — hourly rates, insurance, certifications — are solid for anyone running a shop. Best for skilled trades workers and shop owners discussing business. Blue-collar, practical, direct.

Self-described as "The Friendly Machinist Forum" — and it lives up to that. Over 42,000 members share projects, ask questions, and help beginners. Vendor-sponsored subforums (Precision Matthews, TouchDRO) provide direct access to manufacturers. Best for home shop machinists from beginner to advanced. Active vendor participation, project galleries. Welcoming, patient, and supportive community.

The companion forum to the long-running Home Shop Machinist and Machinist's Workshop print magazines. With 1.4 million posts in the general forum alone, there's a massive archive of accumulated machining knowledge going back years. Features CNC and gunsmithing subforums. Best for traditional machining enthusiasts and magazine readers. Old-school, knowledgeable, relaxed community.

A specialized community of 11,000+ members who build miniature engines from scratch — steam, IC, and more. The precision required for this work is impressive, and the community is one of the most encouraging you'll find. Features engine build logs, casting discussions, and a "Mistakes & Boo Boos" subforum. Best for precision hobbyists and model engineers. Encouraging, detail-oriented, and international.

The largest machining subreddit with 254,000 members. A mix of professional shop machinists, apprentices, and journeymen discussing everything from career advice to technical problems. Active daily with shop photos, tooling questions, and industry discussion.

All things CNC — mills, lathes, routers, CAM software, G-code, and automation. A broad mix of operators, programmers, and hobbyists. 109,000 members sharing setups, troubleshooting code, and discussing equipment.

Focused on machining processes, tools, and projects. Good for seeing real setups and finished parts from other machinists. 33,000+ members sharing their work and helping each other with technique.

The broadest metalworking community on Reddit with 762,000 members. Covers machining, welding, casting, sheet metal, and fabrication. A good entry point for anyone working with metal in any capacity.

Dedicated to manual lathe and mill work. A focused community for those who prefer hands-on machining without CNC, sharing setups, projects, and technique tips.

One of the largest welding communities online with 315,000+ members. Covers MIG, TIG, stick, and specialty welding with daily posts on technique, certifications, career advice, and project showcases.

A community of 235,000 engineers discussing design, manufacturing processes, materials science, and career development. Bridges the gap between engineering theory and shop floor reality.

Custom parts and structural work — from handrails to race car chassis. A community focused on the fabrication side of metalworking, including layout, fitting, welding, and finishing.

Creative heavy-duty DIY machining and fabrication. Inspired by AvE's YouTube channel, this community celebrates over-engineered solutions, beefy builds, and the joy of making things that are built to last.

The largest machinist group on Facebook with an estimated 150,000–250,000+ members. Daily posts from professional tradespeople covering manual and CNC machining, troubleshooting, and show-and-tell. The go-to Facebook community for working machinists.

CNC-specific discussion with 50,000–120,000 members. Covers Fanuc, Mazak, Haas programming, G-code, CAM software, and career topics. A focused community for CNC operators and programmers.

Skews toward shop owners and foremen with 30,000–80,000 members. Discussions center on equipment purchases, tooling, hiring, pricing, and business advice for running a machine shop.

Smaller but highly targeted with 5,000–20,000 members. Focused on quoting, scheduling, ERP, customer relationships, and growth strategy for job shops. Where shop owners talk business.

A CAM and G-code focused community with 30,000–70,000 members. Discussions cover toolpath strategies, post processors, Mastercam, Fusion 360, and machine-specific programming challenges.

A traditional trades community with 20,000–60,000 members dedicated to manual lathe and mill work. Project photos, technique discussions, and machine restoration are common topics.

A specialized community of 15,000–40,000 members focused on stamping dies, injection molds, EDM, and precision toolmaking. Discussions cover the unique challenges of tool and die work.

The main trade organization for precision machine shops in the US. Their LinkedIn presence and local chapter events connect shop owners directly. A professional networking hub for manufacturing leadership.

A LinkedIn group of 121,000 members discussing continuous improvement in manufacturing. Topics include lean principles, kaizen, value stream mapping, and waste reduction applied to machine shops and production facilities.

A LinkedIn group of 36,000–46,000 members focused on operations and supply chain management in manufacturing. Covers scheduling, capacity planning, ERP systems, and production optimization.

A LinkedIn community of 28,000+ members including manufacturing executives and plant managers. Focused on operational excellence, leadership development, and best practices in manufacturing management.

The official Discord server for the r/Metalworking and r/Machining Reddit communities with approximately 3,300 members. Real-time chat for machinists, welders, and fabricators. A younger community bridging Reddit discussions with live conversation.

An active maker community of approximately 18,500 members focused on DIY CNC builds, hobby machining, and making. Centered around the PrintNC open-source CNC router project but covers all aspects of home shop CNC and fabrication.

A UK-based CNC and machining community forum. Covers CNC routing, milling, turning, and DIY CNC builds with a British perspective. Active discussions on machine brands popular in the UK market.

An Australian metalworking community covering machining, welding, fabrication, and casting. Regional focus means discussions often cover equipment and suppliers available in Australia and New Zealand.

A Canadian machining community with regional meetups. Covers home shop machining, metalworking projects, and tool reviews with a focus on Canadian suppliers and events.

A very active UK model engineering forum. Companion to the Model Engineer magazine, covering miniature steam engines, clocks, locomotives, and precision machining at small scales. One of the most established model engineering communities online.

A German-origin B2B manufacturing forum with global reach. Covers CNC machining, CAD/CAM, automation, and industrial technology with an international professional perspective. Available in English and German.