Hi Folks. New to the group. I’ve got a k40, mostly stock aside from minor safety upgrades (door interlock, laser power shutoff), running it with ScorchWorks K40 Whisperer. I recently installed the LightObject laser head with air assist, the recommended mirror and the 18 mm x 50 mm FL lens. After installation, the laser is performing very poorly compared to the stock head. It was even struggling to cut through printer paper after I had turned the power quite high. I did notice that the raster function seemed to perform more normally than the vector functions, but still weak.
- Tightened fasteners to make sure nothing was loose.
- Adjusted the position of the head in the bracket to recenter. No real effect.
- Ramp test. Focal point is approximately at the bed height.
- Checked with air assist vs air assist nozzle removed. Air did reduce flaring and charring as expected, did not affect cut power.
I haven’t yet put on the old head and tried that again. Any suggestions?