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  1. 08-05-2014 #21
    Robin Hewitt's Avatar
    Lives in Seaford, Sussex, United Kingdom.
    Robin Hewitt
    Last Activity: 1 Week Ago Has a total post count of 1,618. Received thanks 109 times, giving thanks to others 7 times. Is a beta tester for Machinists Network features. Referred 1 members to the community.
    Quote Originally Posted by Want2build1 View Post
    Speed is easy ... laser power ???
    The laser is either on or off, to set the power you adjust the percentage of the time it is on while measuring the current going through it on a meter. The volts go through the tube then through the meter to ground, that way you have very few volts at the meter.

    Overpower it or lose the coolant flow and the mirrors at either end of the tube degrade PDQ.

    The coolant pump supplied is naff and the tube seems to have a capacity to heat Olympic size pools with ease. This persuades you towards the CW-3000 cooler on ebay for £230 from China. Then you discover the CW-5000 for £525 and the CW-5200 for just shy of £600. The CW-3000 can sink 50W which is just enough, the CW-5200 can sink 1.5kW
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