Hi
I purchased a 2" focal length lens as replacement for my 11/2" lens that had cracked. I thought I could just replace the lens - reassemble and fire up the laser - this didn't happen - there is absolute minimum laser power flowing the head - the only way to get any laser scan to work is to maximise power - lower speed - this just results in burn. The pulse is operating as it should. Can I do any adjustments to ensure that this longer focal length lens will operate - does the "head" have to be adjusted to account for the longer focal length - prior to this the laser was working fine except for the loss of power due to the cracked lens - I now wish I had kept the old broken lens in - has anyone any suggestions please