Wood Engraving Custom|Laser Engrave Stainless Steel|Pre-assembled Package:Ready to use right out of the box, this pre-assembled laser engraver simplifies setup for beginners. Advanced Firmware:Features a 32-bit MCU and supports up to 921600 baud rate for fast and precise engraving. ...
For focusing the laser I’m using a small piece of special coated aluminium (anodized will work too) and put it on my laser bed and at the height I want the laser-focused. If you are using a long focal lens like me, you are getting a Focal point area of 3 to 4 mm from the fo...