Beam Combiner Last update: 2019-08-13
The Beam Combiner stuff we bought throug the AliExpress channel
did not have enough adjustment possibilities, so it was modified
in several ways. Basically two independent adjustments are
required: First to aim the pilot laser such that it hits the
combiner mirror exactly at the place where the CO2 beam
leaves this mirror (should be the center of the mirror), secondly
to adjust the combiner mirror such that the pilot beam is exacltly
aligned with the CO2 beam.
Also it was positioned in a non-perpendicular way to have more
margin for the CO2 beam width.
The presence of the beam combiner required the laser tube to be
placed more to the right of the machine, which made it extend into
the electronics compartment. A special cubical was made to
separate the tube area from the electronics area.