Big Box Store Plywood — Cut (5.2mm)
Big Box Store Plywood — Cut
Your selection automatically recenters Round 2 or locks it in as your verified shop standard.
Big Box Store Plywood (5.2mm) — Clean Through Cut
Compare beam physics, edge squareness, and autofocus offset rules across all compatible lenses.
OMTech Pronto 35 (80W CO₂)
Exports the core operations per thickness tuned for bare natural materials with built-in safety margins. Minimal entries, zero clutter in LightBurn.
OMTech Pronto 40 — "Hello World" Souvenir Badge & Keychain
.lbrn2 file (layers pre-configured for your machine).
Turn on FIRST. Laser tubes will crack in under 5 seconds without flow. Wait 30s to verify temperature and water flow wheel rotation.
Turn on SECOND. Verify negative suction: hold a paper sheet over the bed grid—it should stick firmly. Check outside vent flap is open.
Turn on THIRD. Feel tactile airflow exiting the laser cone. Air assist prevents vaporized resin and smoke from scorching your ZnSe lens.
Turn on LAST. The gantry will home to the top-right corner. Ensure no tall objects or tools are left on the bed path before powering on.
Releases Chlorine Gas (Cl₂). Mixes with humidity to form Hydrochloric Acid (HCl). Destroys mirrors, lenses, wiring, and lungs permanently.
Catches fire immediately, cuts poorly, and produces billowing black toxic soot that permanently coats optical mirrors.
ABS emits hydrogen cyanide gas. HDPE melts into a flaming puddle on the honeycomb bed that cannot be extinguished easily.
Epoxy resins emit toxic smoke, and laser cutting releases microscopic airborne glass fibers that inflict permanent respiratory injury.
Cuts cleanly with flame-polished glassy edges. Low air assist yields smooth edges; high air assist for detailed scoring.
Interior-grade low-glue wood cuts with minimal char when high air assist (25–30 PSI) is active.
Cuts cleanly with beautiful natural grain. Produces rich aromatic smoke vented safely by exhaust.
Anodized aluminum bleaches to bright white contrast (marking only). 100% vegetable-tanned leather cuts cleanly (never chrome-tanned!).
Never trust unlabeled plastic from Amazon or thrift stores. Heat the stripped end of a copper wire with a torch until red hot. Touch the plastic to melt a tiny speck onto the wire, then put the wire back into the flame:
A tiny flame that travels with the laser head and dies immediately once the beam moves away. Typical on plywood.
Flame stays stationary, begins spreading across the sheet, or grows after the laser beam passes.
Slap the red mushroom button. Kills high voltage instantly while keeping exhaust running.
Starves flame of fresh oxygen. Most minor flare-ups smother themselves without opening the lid.
If fire persists, crack the lid just enough to drop a fire blanket or discharge CO2 gas.
Smothers flames with cold gas. Leaves ZERO chemical residue. Machine is 100% saved!
ABC powder shoots corrosive ammonium phosphate. It turns mirrors and linear rails to acid sludge.
Typically measures between 4.9mm and 5.3mm. A 6.35mm slot will be loose and sloppy.
Usually measures 2.7mm to 3.0mm. Designing joints without calipers causes 100% failure.
The beam has physical width! In LightBurn, apply a Kerf Offset of +0.08mm for snug friction-fit joints.
Laser depth of field is only ±1.5mm. Use 3D-printed honeycomb hold-down pins to flatten bowed plywood sheets.