How to setup co2 laser with Beam Combiners?

Review:
Comparative analysis of CO2 laser and conventional sawing for cutting of lumber and wood-based materials
2017
Alejandro Martinez-Conde, Thomas Krenke, Stephan Frybort, Ulrich Müller

Relationship between feed speed and kerf width, cutting four types of materials (lumber, MDF, particleboard and plywood) with an output power of 250 W for several thicknesses

Co2 Laser Upgrade - Laser & Red Dot Beam Combiner for CNC Co2 Laser Machine

Co2 laser Beam Combiners by American Photonics

RDWorks Learning Lab 99 Beam Combiners Investigated - SarbarMultimedia

[LaserMen] 1325 combined tube nonmetal co2 laser machine mirror alignment guide

Co2 laser Beam Combiner

Co2 Laser Upgrade - Laser & Red Dot Beam Combiner for CNC Co2 Laser Machine
https://www.youtube.com/watch?v=Eh1ZSW4hMSs

Cloud Ray Laser

www.cloudraylaser.com/collections/beam-combiner-expander/products/cloudray-znse-laser-beam-combiner-set-style-b

Laser Machine 25mm Beam Combiner Mount w/Laser Pointer. Black

Ideal for Beam Diameter smaller than 10mm

optics mounting diameter:
25mm Laser pointer: 5mW Red 650mm,
focus adjustable
Power: DC3V~5V

Overall width = 75mm Overall height = 190mm