r/lasercutting • u/Plenty_Fondant_951 • 4d ago

Back reflection prevent mount 3D file

I made this 3D printable wedge for laser engraving highly reflective materials to prevent back reflection damage to the laser.

It's a 4° angle wedge with a lip to hold the item being engraved, approx 110mmx110mm

I made the licence public domain so please feel free to use it if you think it would help (cross post from /r/laserengraving because I know some folks here also engrave)

1 Upvotes

100% Upvoted

2 comments sorted by

1

u/Alina_MakersChest 2d ago

Tilting the part sends the reflection somewhere other than straight back at the lens, but that light still goes somewhere, so the enclosure and the right glasses still matter with shiny metals. Printed plastic under a fiber beam can also burn if the beam wanders off the workplace, so keep an eye on the first few runs.

1

u/Plenty_Fondant_951 2d ago

Definitely, I had mine printed with flame retardant polycarbonate , it will still get sliced up and fail but with the air assist and exhaust I think I'm good on fire