Last evening, with Patrick Godwin's help, the FrontEnd (35-W laser) that has been sitting outside the H1 Ante-room since July 9 (Link) was moved to the optics lab.

Today, the 35-W amplifier was removed to access the underside where the quick-connect water fittings are mounted.

These fittings have internal valves (on both sides of the connection) to prevent water drips when they are disconnected.

It appears that it will be easy to replace them with similar fittings that don't have the internal shut off valves.  We plan to replace the large red hoses with the same hose (8 mm OD, 6 mm ID) that was provided for the new 70-W amplifier (Link).  

The CPC fittings we want appear to be:

Laser-side bulkhead fittings:

PLC12004 body, panel mount, 1/4" PTF (hoses on the amplifier side are nominally 1/4" OD - 6 mm x 4 mm x 1 mm wall)

PLC40004 insert, panel mount, 14" PTF

Hose ends"

PLC13006 body, free floating, 3/8" PTF

PLC20006 insert, free floating, 3/8" PTF

Photos in the attached .pdf composite file.

We'll replace the fittings in this unit, then make plans to replace the fittings and hoses in the H1 unit when we have the opportunity.

Note that one of the hoses (4 x 2 x 1 mm tubing) under the 35-W amplifier is significantly "kinked."  This might need to be replaced.  We'll share the photos with Maik and Basti at NeoLASE to see what they think.

The FrontEnd laser is partially disassembled and covered with Ameristat on the South end of the larger optical table in the center of the OSB Optics Lab awaiting the replacement fittings.