How difficult will be to replace the laser tube? A video tutorial NOW would be appreciated

[palmercr]

@dan

First, each unit is factory calibrated for many tiny variations in assembly, like the precise amount various assemblies are tightened, twisted, or torqued. A unit that’s dis-assembled and re-assembled may (or may not) show a host of problems, small or large, immediately or much later: out of focus, image alignment errors, etc. Even if a machine has been properly re-assembled, it’s possible that the calibration may no longer be correct. There’s no way to re-calibrate these without the factory fixtures and factory software.

I don’t see how the tube can be replaced without dis-assembling the unit, can you? It runs almost the full length of the machine so I don’t think it is possible to remove it without taking the entire top off.