Should You Really Buy That Laser? The Hidden Math Behind Modern Fabrication, #62

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Fiber lasers have completely changed what’s possible in metal fabrication, but here’s the part nobody puts on the brochure: speed alone doesn’t make a shop profitable. In this episode I’m joined by Mike Peterson, owner of Critical Laser and Spire Ranges, for an honest conversation about what it actually takes to run a successful laser cutting and sheet metal business in 2026.

Mike’s story goes all the way back to 1992, when Critical Laser brought one of the first lasers into Utah, a 1,600-watt Mitsubishi CO2 machine that felt more like magic than manufacturing. Since then he’s watched the industry move from slow CO2 cutting to high-powered fiber that can turn an hour-long job into a 15-minute run. But as Mike explains, that kind of speed creates a whole new set of problems around labor, material flow, pricing, training, and capacity.

What I appreciated most is that we didn’t just geek out on machine specs. We got into ownership lessons, family business dynamics, the pricing mistakes that quietly bleed a shop dry, and the danger of making decisions based on revenue instead of profit. Mike shares how simply understanding his own numbers helped Critical Laser double its net margin without buying a single new machine.

We also dug into the big question a lot of manufacturers eventually face: when does it actually make sense to bring laser cutting in-house? Mike’s answer might sting a little, but it’s the kind of honest advice that can save a business from buying an expensive problem wrapped in a shiny enclosure.

If you’re outsourcing fabrication, thinking about buying your first laser, or just trying to figure out where your shop is really making money, this one is packed with sparks worth catching.

Covered in this Episode

• (0:00) Switching from 3,500W CO2 to 10,000W fiber cut sheet time from 70 minutes to 15 minutes
• (1:06) Introducing Mike Peterson and Critical Laser and Spire Ranges
• (7:11) The ownership evolution: from 5 original owners to Mike becoming the sole owner
• (9:46) Here’s why you need to join us at IMTS 2026!
• (10:39) The danger of equal ownership: Why a single decision-maker matters for banking, equipment purchases, and major operational moves
• (14:14) The impact of taking over the books and updating customer pricing
• (18:12) How fiber lasers changed labor: CO2 needed one operator per machine; fiber requires a team just to unload
• (22:41) Pierce-to-pierce time: why shuttle time matters as much as cut speed when pricing a job
• (24:24) Beam-on time goals: Critical Laser targets 80-85% laser utilization across every 10-hour shift
• (25:30) Daily standup tactical meeting: 15 minutes every morning assigning every team member to specific work centers
• (27:14) Training young hires with formalized machine certifications, checklists, and hands-on tests
• (31:25) Hire MFG Leaders
• (33:40) Certification-based pay: each machine adds $0.25/hr; full certification can stack $10-12/hr in raises
• (36:10) Spire Ranges: gun range equipment manufacturing acquired March 2020; government, commercial, and private work
• (40:10) The $1M outsourcing threshold: do not buy your own laser unless you are already spending that with your vendor
• (45:56) The window well neighbor: why you shouldn’t buy a cheap laser
• (48:53) Fiber laser maintenance is costly, which most people don’t know
• (51:35) Why experienced laser buyers qualify on service first and machine specs second
• (54:57) Gross revenue vs. net margin and the Inconel job that crushed their cash flow
• (58:31) Why Critical Laser explains hourly rates and overhead to the whole team
• (59:29) Factur
• (1:00:34) How Spire and Critical are growing with government contracts and local relationships
• (1:07:18) Mike’s philosophy of running a shop where everyone works with each other

Resources Mentioned

• Why you need to join us at IMTS 2026!
• BySoft
• SendCutSend
• SendCutSend and the Future of Manufacturing
• Hire MFG Leaders
• Factur

Connect with Mike Peterson

• Connect on LinkedIn
• Email: mike@critical-laser.com
• Critical Laser
• Spire Ranges