Can a school laser cut plywood, MDF, or engineered wood?

Question

Accepted Answer

Sometimes, and programs disagree.

Sometimes, and programs disagree. That disagreement is the point: approval is for a specific product on a specific machine, and another school’s list is not approval for yours. This applies to enclosed machines at Class 1 or Class 2 in the configuration you run. Programs disagree on MDF: approval is for your product on your machine A row of four schools and what each says about MDF. Emory prohibits formaldehyde-containing MDF and engineered boards. Harvard’s lab allows natural wood and veneer under one eighth inch but prohibits MDF. Georgetown’s maker hub approves woods and MDF. The University of Victoria lists plywood and MDF as acceptable. Below, what the page says drives the caution: adhesives in plywood and MDF, composite woods that may give off fumes such as formaldehyde, resinous woods such as pine or cedar that are more susceptible to fire, and more resin meaning more fire risk. A red note says do not assume a scrap, salvaged panel or unlabeled board is acceptable. A final note says keep the cutting deck clear of debris, and any flame means stop. What four schools say about MDF Emory prohibits formaldehyde MDF Harvard prohibits Georgetown approves Victoria lists as acceptable Why the caution Adhesives composite woods may give off formaldehyde Resin more resin, more fire risk; pine, cedar more so Do not assume it is acceptable A scrap, salvaged panel or unlabeled board: use a documented product on your list. Stay with the machine. Keep the cutting deck clear of debris. Any flame means stop. The disagreement is the lesson: none of these lists is yours. Pick a documented product from your own program’s list. Enclosed Class 1 or Class 2 machines only. Plywood and MDF contain adhesives. The University of Florida notes composite woods may give off fumes such as formaldehyde, and that resinous woods such as pine or cedar are more susceptible to fire. Emory prohibits formaldehyde-containing MDF and engineered boards, coniferous and oily woods, adhesive- or resin-filled material, and anything marked flame-retardant. Harvard’s lab allows natural wood and veneer under 1/8 inch but prohibits MDF. Georgetown’s maker hub approves woods and MDF, and the University of Victoria lists plywood and MDF as acceptable while noting that more resin means more fire risk and that glued material can produce formaldehyde. So do not assume a scrap, salvaged panel, or unlabeled board is acceptable; use a documented product on your program’s list. Stay with the machine the whole job and keep the cutting deck clear of debris, since MIT calls regular vacuuming of the deck very important for preventing fires. Any flame means stop: use the emergency stop or the switch you were trained to use, do not open the lid to look, move students away, and follow your school’s written fire procedure, which sets what happens next. Open-frame, open-bed, pass-through, converted, or Class 3B or Class 4 machines are outside this answer.

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