Laser safety consulting & training.
Porcaro Dynamics does laser safety consulting and training for shops in Wichita and across Kansas. A Class 4 laser in a sign shop is the same hazard it is in a research lab. The lab has a hazard analysis, written procedures, and a record of the last time somebody tested the interlocks. The shop usually has none of it.
I built an industrial laser safety program from scratch at an aerospace manufacturer. A shop with one machine needs the same things, just less of them, and it can be done on the same visit as a repair.
Wichita area, and across Kansas by quote.
What the Work Covers
Hazard Evaluation
A written look at what the machine can do to an eye or a hand, and to the room it sits in.
NHZ Calculations
Nominal hazard zone and MPE calculations for open-beam and opened-up-enclosure conditions, with the math written out.
SOPs & Program Documents
Written procedures for running, aligning and servicing the machine. Short enough that people will actually read them.
Operator Training
Training for the people who run the machine, on the machine they run.
Signage & Labeling
Aperture, classification and warning labels. Specified, and actually put on the machine.
Interlock Verification
Testing whether the interlocks actually stop the beam, and writing down what happened when I tried.
Documents You Can Hand to an Inspector
Everything comes back in writing: the hazard evaluation, the NHZ calculation with its inputs shown, SOPs your operators sign, the interlock test record, and training attendance. They stay with the machine, and the next person to look at it can check my work.
In a small shop the laser safety officer is usually the owner or lead operator. The program is sized so one person can keep it going, and I can come back to retrain new operators or update it when you add a machine, often alongside a maintenance visit.
Frameworks I Work To
These are the standards and regulations the work conforms to.
- ANSI Z136.1
- Safe use of lasers. The primary framework for hazard evaluation, NHZ, controls, and program structure.
- ANSI Z136.8
- Safe use of lasers in research, development, and testing. Applied where the work is R&D rather than production.
- 21 CFR 1040 (FDA/CDRH)
- Federal performance standards for laser products, including required labeling and safety features.
- IEC 60825-1
- International classification and requirements, useful when equipment arrives marked to the IEC scheme.
Laser Safety Questions
Do I need a laser safety program for a Class 4 laser?
ANSI Z136.1, the standard OSHA looks to for laser hazards, calls for a laser safety program and a designated laser safety officer wherever Class 3B or Class 4 lasers are used. For a small shop that program can be short: a hazard evaluation, written procedures, trained operators, correct labels and eyewear, and working interlocks. It does not need to be a binder nobody reads.
My laser cutter is fully enclosed. Is it still a Class 4 laser?
The tube inside almost always is. An enclosed machine with working interlocks can be classified as a lower class product in normal operation, because the beam cannot get out. That classification depends on the interlocks working. With the lid open during alignment or service, or with an interlock bypassed, you are working with an exposed Class 4 beam.
Do I need different safety glasses for a fiber laser and a CO2 laser?
Yes. Eyewear is rated for specific wavelengths, and a fiber laser runs at a completely different wavelength from a CO2 laser. Glasses rated for one are not rated for the other, so a shop running both needs both. Many open-frame fiber markers have no enclosure at all, which makes eyewear matter even more.
Is the beam the only hazard?
No, and day to day it is often not the biggest one. Fume from cutting plastics, fire in the honeycomb, and the high-voltage supply inside a CO2 machine hurt more people than direct beam exposure. Cutting PVC or vinyl, for example, releases chlorine compounds that are bad for people and destroy the machine. A hazard evaluation covers all of it.
What does laser safety training cover?
Training is done on your machine, for the people who run it. It covers the actual hazards of that system, choosing and checking eyewear, what the interlocks do and why they must never be bypassed, safe alignment practice, fire and fume hazards, and what to do when something goes wrong. You keep the materials and the attendance record.
Can laser safety work be done on the same visit as a repair?
Usually, yes. When the machine is already open and aligned, it is the cheapest time to test the interlocks, check the labels and walk the operators through it. Mention it on the service request form and I will plan the visit around both.
Machine down, or
due for service?
Fill in the intake form with the machine details and what it is doing. I will come back with what I think is wrong and what it takes to fix, and whether we can sort it out over a video call instead of a visit.
Or email peter@porcarodyn.com, or call 316-213-5895. Wichita Metropolitan Area, KS, USA. Farther out by quote, and remote triage anywhere.